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 |
727bdf |
Upstream-Status: Backport [https://github.com/openssl/openssl/commit/44a563dde1584cd9284e80b6e45ee5019be8d36c, https://github.com/openssl/openssl/commit/345c99b6654b8313c792d54f829943068911ddbd]
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727bdf |
diff --git a/crypto/modes/asm/aes-gcm-ppc.pl b/crypto/modes/asm/aes-gcm-ppc.pl
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727bdf |
new file mode 100644
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727bdf |
index 0000000..6624e6c
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727bdf |
--- /dev/null
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727bdf |
+++ b/crypto/modes/asm/aes-gcm-ppc.pl
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727bdf |
@@ -0,0 +1,1438 @@
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727bdf |
+#! /usr/bin/env perl
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727bdf |
+# Copyright 2014-2020 The OpenSSL Project Authors. All Rights Reserved.
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727bdf |
+# Copyright 2021- IBM Inc. All rights reserved
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727bdf |
+#
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727bdf |
+# Licensed under the Apache License 2.0 (the "License"). You may not use
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727bdf |
+# this file except in compliance with the License. You can obtain a copy
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727bdf |
+# in the file LICENSE in the source distribution or at
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727bdf |
+# https://www.openssl.org/source/license.html
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727bdf |
+#
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727bdf |
+#===================================================================================
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727bdf |
+# Written by Danny Tsen <dtsen@us.ibm.com> for OpenSSL Project,
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727bdf |
+#
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727bdf |
+# GHASH is based on the Karatsuba multiplication method.
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727bdf |
+#
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727bdf |
+# Xi xor X1
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727bdf |
+#
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727bdf |
+# X1 * H^4 + X2 * H^3 + x3 * H^2 + X4 * H =
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727bdf |
+# (X1.h * H4.h + xX.l * H4.l + X1 * H4) +
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727bdf |
+# (X2.h * H3.h + X2.l * H3.l + X2 * H3) +
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727bdf |
+# (X3.h * H2.h + X3.l * H2.l + X3 * H2) +
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727bdf |
+# (X4.h * H.h + X4.l * H.l + X4 * H)
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727bdf |
+#
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727bdf |
+# Xi = v0
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727bdf |
+# H Poly = v2
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727bdf |
+# Hash keys = v3 - v14
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727bdf |
+# ( H.l, H, H.h)
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727bdf |
+# ( H^2.l, H^2, H^2.h)
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727bdf |
+# ( H^3.l, H^3, H^3.h)
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727bdf |
+# ( H^4.l, H^4, H^4.h)
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727bdf |
+#
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727bdf |
+# v30 is IV
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727bdf |
+# v31 - counter 1
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727bdf |
+#
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727bdf |
+# AES used,
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727bdf |
+# vs0 - vs14 for round keys
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727bdf |
+# v15, v16, v17, v18, v19, v20, v21, v22 for 8 blocks (encrypted)
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727bdf |
+#
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727bdf |
+# This implementation uses stitched AES-GCM approach to improve overall performance.
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727bdf |
+# AES is implemented with 8x blocks and GHASH is using 2 4x blocks.
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727bdf |
+#
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727bdf |
+# Current large block (16384 bytes) performance per second with 128 bit key --
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727bdf |
+#
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727bdf |
+# Encrypt Decrypt
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727bdf |
+# Power10[le] (3.5GHz) 5.32G 5.26G
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727bdf |
+#
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727bdf |
+# ===================================================================================
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727bdf |
+#
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727bdf |
+# $output is the last argument if it looks like a file (it has an extension)
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727bdf |
+# $flavour is the first argument if it doesn't look like a file
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727bdf |
+$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
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727bdf |
+$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
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727bdf |
+
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727bdf |
+if ($flavour =~ /64/) {
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727bdf |
+ $SIZE_T=8;
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727bdf |
+ $LRSAVE=2*$SIZE_T;
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727bdf |
+ $STU="stdu";
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727bdf |
+ $POP="ld";
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727bdf |
+ $PUSH="std";
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727bdf |
+ $UCMP="cmpld";
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727bdf |
+ $SHRI="srdi";
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727bdf |
+} elsif ($flavour =~ /32/) {
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727bdf |
+ $SIZE_T=4;
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727bdf |
+ $LRSAVE=$SIZE_T;
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727bdf |
+ $STU="stwu";
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727bdf |
+ $POP="lwz";
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727bdf |
+ $PUSH="stw";
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727bdf |
+ $UCMP="cmplw";
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727bdf |
+ $SHRI="srwi";
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727bdf |
+} else { die "nonsense $flavour"; }
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727bdf |
+
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727bdf |
+$sp="r1";
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727bdf |
+$FRAME=6*$SIZE_T+13*16; # 13*16 is for v20-v31 offload
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727bdf |
+
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727bdf |
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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727bdf |
+( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
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727bdf |
+( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
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727bdf |
+die "can't locate ppc-xlate.pl";
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727bdf |
+
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727bdf |
+open STDOUT,"| $^X $xlate $flavour \"$output\""
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727bdf |
+ or die "can't call $xlate: $!";
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727bdf |
+
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727bdf |
+$code=<<___;
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727bdf |
+.machine "any"
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727bdf |
+.text
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727bdf |
+
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727bdf |
+# 4x loops
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727bdf |
+# v15 - v18 - input states
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727bdf |
+# vs1 - vs9 - round keys
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727bdf |
+#
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727bdf |
+.macro Loop_aes_middle4x
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727bdf |
+ xxlor 19+32, 1, 1
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727bdf |
+ xxlor 20+32, 2, 2
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727bdf |
+ xxlor 21+32, 3, 3
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727bdf |
+ xxlor 22+32, 4, 4
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 19
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727bdf |
+ vcipher 16, 16, 19
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727bdf |
+ vcipher 17, 17, 19
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727bdf |
+ vcipher 18, 18, 19
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 20
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727bdf |
+ vcipher 16, 16, 20
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727bdf |
+ vcipher 17, 17, 20
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727bdf |
+ vcipher 18, 18, 20
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 21
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727bdf |
+ vcipher 16, 16, 21
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727bdf |
+ vcipher 17, 17, 21
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727bdf |
+ vcipher 18, 18, 21
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 22
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727bdf |
+ vcipher 16, 16, 22
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727bdf |
+ vcipher 17, 17, 22
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727bdf |
+ vcipher 18, 18, 22
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727bdf |
+
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727bdf |
+ xxlor 19+32, 5, 5
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727bdf |
+ xxlor 20+32, 6, 6
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727bdf |
+ xxlor 21+32, 7, 7
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727bdf |
+ xxlor 22+32, 8, 8
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 19
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727bdf |
+ vcipher 16, 16, 19
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727bdf |
+ vcipher 17, 17, 19
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727bdf |
+ vcipher 18, 18, 19
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 20
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727bdf |
+ vcipher 16, 16, 20
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727bdf |
+ vcipher 17, 17, 20
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727bdf |
+ vcipher 18, 18, 20
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 21
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727bdf |
+ vcipher 16, 16, 21
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727bdf |
+ vcipher 17, 17, 21
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727bdf |
+ vcipher 18, 18, 21
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 22
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727bdf |
+ vcipher 16, 16, 22
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727bdf |
+ vcipher 17, 17, 22
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727bdf |
+ vcipher 18, 18, 22
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727bdf |
+
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727bdf |
+ xxlor 23+32, 9, 9
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727bdf |
+ vcipher 15, 15, 23
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727bdf |
+ vcipher 16, 16, 23
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727bdf |
+ vcipher 17, 17, 23
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727bdf |
+ vcipher 18, 18, 23
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727bdf |
+.endm
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727bdf |
+
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727bdf |
+# 8x loops
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727bdf |
+# v15 - v22 - input states
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727bdf |
+# vs1 - vs9 - round keys
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727bdf |
+#
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727bdf |
+.macro Loop_aes_middle8x
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727bdf |
+ xxlor 23+32, 1, 1
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727bdf |
+ xxlor 24+32, 2, 2
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727bdf |
+ xxlor 25+32, 3, 3
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727bdf |
+ xxlor 26+32, 4, 4
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 23
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727bdf |
+ vcipher 16, 16, 23
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727bdf |
+ vcipher 17, 17, 23
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727bdf |
+ vcipher 18, 18, 23
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727bdf |
+ vcipher 19, 19, 23
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727bdf |
+ vcipher 20, 20, 23
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727bdf |
+ vcipher 21, 21, 23
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727bdf |
+ vcipher 22, 22, 23
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 24
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727bdf |
+ vcipher 16, 16, 24
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727bdf |
+ vcipher 17, 17, 24
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727bdf |
+ vcipher 18, 18, 24
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727bdf |
+ vcipher 19, 19, 24
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727bdf |
+ vcipher 20, 20, 24
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727bdf |
+ vcipher 21, 21, 24
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727bdf |
+ vcipher 22, 22, 24
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 25
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727bdf |
+ vcipher 16, 16, 25
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727bdf |
+ vcipher 17, 17, 25
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727bdf |
+ vcipher 18, 18, 25
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727bdf |
+ vcipher 19, 19, 25
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727bdf |
+ vcipher 20, 20, 25
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727bdf |
+ vcipher 21, 21, 25
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727bdf |
+ vcipher 22, 22, 25
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 26
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727bdf |
+ vcipher 16, 16, 26
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727bdf |
+ vcipher 17, 17, 26
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727bdf |
+ vcipher 18, 18, 26
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727bdf |
+ vcipher 19, 19, 26
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727bdf |
+ vcipher 20, 20, 26
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727bdf |
+ vcipher 21, 21, 26
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727bdf |
+ vcipher 22, 22, 26
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727bdf |
+
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727bdf |
+ xxlor 23+32, 5, 5
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727bdf |
+ xxlor 24+32, 6, 6
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727bdf |
+ xxlor 25+32, 7, 7
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727bdf |
+ xxlor 26+32, 8, 8
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 23
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727bdf |
+ vcipher 16, 16, 23
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727bdf |
+ vcipher 17, 17, 23
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727bdf |
+ vcipher 18, 18, 23
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727bdf |
+ vcipher 19, 19, 23
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727bdf |
+ vcipher 20, 20, 23
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727bdf |
+ vcipher 21, 21, 23
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727bdf |
+ vcipher 22, 22, 23
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 24
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727bdf |
+ vcipher 16, 16, 24
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727bdf |
+ vcipher 17, 17, 24
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727bdf |
+ vcipher 18, 18, 24
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727bdf |
+ vcipher 19, 19, 24
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727bdf |
+ vcipher 20, 20, 24
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727bdf |
+ vcipher 21, 21, 24
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727bdf |
+ vcipher 22, 22, 24
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 25
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727bdf |
+ vcipher 16, 16, 25
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727bdf |
+ vcipher 17, 17, 25
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727bdf |
+ vcipher 18, 18, 25
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727bdf |
+ vcipher 19, 19, 25
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727bdf |
+ vcipher 20, 20, 25
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727bdf |
+ vcipher 21, 21, 25
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727bdf |
+ vcipher 22, 22, 25
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727bdf |
+
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727bdf |
+ vcipher 15, 15, 26
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727bdf |
+ vcipher 16, 16, 26
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727bdf |
+ vcipher 17, 17, 26
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727bdf |
+ vcipher 18, 18, 26
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727bdf |
+ vcipher 19, 19, 26
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727bdf |
+ vcipher 20, 20, 26
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727bdf |
+ vcipher 21, 21, 26
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727bdf |
+ vcipher 22, 22, 26
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727bdf |
+
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727bdf |
+ xxlor 23+32, 9, 9
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727bdf |
+ vcipher 15, 15, 23
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727bdf |
+ vcipher 16, 16, 23
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727bdf |
+ vcipher 17, 17, 23
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727bdf |
+ vcipher 18, 18, 23
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727bdf |
+ vcipher 19, 19, 23
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727bdf |
+ vcipher 20, 20, 23
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727bdf |
+ vcipher 21, 21, 23
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727bdf |
+ vcipher 22, 22, 23
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727bdf |
+.endm
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727bdf |
+
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727bdf |
+#
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727bdf |
+# Compute 4x hash values based on Karatsuba method.
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727bdf |
+#
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727bdf |
+ppc_aes_gcm_ghash:
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727bdf |
+ vxor 15, 15, 0
|
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727bdf |
+
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727bdf |
+ xxlxor 29, 29, 29
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|
727bdf |
+
|
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|
727bdf |
+ vpmsumd 23, 12, 15 # H4.L * X.L
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727bdf |
+ vpmsumd 24, 9, 16
|
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727bdf |
+ vpmsumd 25, 6, 17
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727bdf |
+ vpmsumd 26, 3, 18
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727bdf |
+
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727bdf |
+ vxor 23, 23, 24
|
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727bdf |
+ vxor 23, 23, 25
|
|
|
727bdf |
+ vxor 23, 23, 26 # L
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vpmsumd 24, 13, 15 # H4.L * X.H + H4.H * X.L
|
|
|
727bdf |
+ vpmsumd 25, 10, 16 # H3.L * X1.H + H3.H * X1.L
|
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|
727bdf |
+ vpmsumd 26, 7, 17
|
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|
727bdf |
+ vpmsumd 27, 4, 18
|
|
|
727bdf |
+
|
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727bdf |
+ vxor 24, 24, 25
|
|
|
727bdf |
+ vxor 24, 24, 26
|
|
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727bdf |
+ vxor 24, 24, 27 # M
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # sum hash and reduction with H Poly
|
|
|
727bdf |
+ vpmsumd 28, 23, 2 # reduction
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 29+32, 29, 29
|
|
|
727bdf |
+ vsldoi 26, 24, 29, 8 # mL
|
|
|
727bdf |
+ vsldoi 29, 29, 24, 8 # mH
|
|
|
727bdf |
+ vxor 23, 23, 26 # mL + L
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vsldoi 23, 23, 23, 8 # swap
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|
|
727bdf |
+ vxor 23, 23, 28
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vpmsumd 24, 14, 15 # H4.H * X.H
|
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|
727bdf |
+ vpmsumd 25, 11, 16
|
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|
727bdf |
+ vpmsumd 26, 8, 17
|
|
|
727bdf |
+ vpmsumd 27, 5, 18
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 24, 24, 25
|
|
|
727bdf |
+ vxor 24, 24, 26
|
|
|
727bdf |
+ vxor 24, 24, 27
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 24, 24, 29
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # sum hash and reduction with H Poly
|
|
|
727bdf |
+ vsldoi 27, 23, 23, 8 # swap
|
|
|
727bdf |
+ vpmsumd 23, 23, 2
|
|
|
727bdf |
+ vxor 27, 27, 24
|
|
|
727bdf |
+ vxor 23, 23, 27
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 32, 23+32, 23+32 # update hash
|
|
|
727bdf |
+
|
|
|
727bdf |
+ blr
|
|
|
727bdf |
+
|
|
|
727bdf |
+#
|
|
|
727bdf |
+# Combine two 4x ghash
|
|
|
727bdf |
+# v15 - v22 - input blocks
|
|
|
727bdf |
+#
|
|
|
727bdf |
+.macro ppc_aes_gcm_ghash2_4x
|
|
|
727bdf |
+ # first 4x hash
|
|
|
727bdf |
+ vxor 15, 15, 0 # Xi + X
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 29, 29, 29
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vpmsumd 23, 12, 15 # H4.L * X.L
|
|
|
727bdf |
+ vpmsumd 24, 9, 16
|
|
|
727bdf |
+ vpmsumd 25, 6, 17
|
|
|
727bdf |
+ vpmsumd 26, 3, 18
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 23, 23, 24
|
|
|
727bdf |
+ vxor 23, 23, 25
|
|
|
727bdf |
+ vxor 23, 23, 26 # L
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vpmsumd 24, 13, 15 # H4.L * X.H + H4.H * X.L
|
|
|
727bdf |
+ vpmsumd 25, 10, 16 # H3.L * X1.H + H3.H * X1.L
|
|
|
727bdf |
+ vpmsumd 26, 7, 17
|
|
|
727bdf |
+ vpmsumd 27, 4, 18
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 24, 24, 25
|
|
|
727bdf |
+ vxor 24, 24, 26
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # sum hash and reduction with H Poly
|
|
|
727bdf |
+ vpmsumd 28, 23, 2 # reduction
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 29+32, 29, 29
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 24, 24, 27 # M
|
|
|
727bdf |
+ vsldoi 26, 24, 29, 8 # mL
|
|
|
727bdf |
+ vsldoi 29, 29, 24, 8 # mH
|
|
|
727bdf |
+ vxor 23, 23, 26 # mL + L
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vsldoi 23, 23, 23, 8 # swap
|
|
|
727bdf |
+ vxor 23, 23, 28
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vpmsumd 24, 14, 15 # H4.H * X.H
|
|
|
727bdf |
+ vpmsumd 25, 11, 16
|
|
|
727bdf |
+ vpmsumd 26, 8, 17
|
|
|
727bdf |
+ vpmsumd 27, 5, 18
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 24, 24, 25
|
|
|
727bdf |
+ vxor 24, 24, 26
|
|
|
727bdf |
+ vxor 24, 24, 27 # H
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 24, 24, 29 # H + mH
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # sum hash and reduction with H Poly
|
|
|
727bdf |
+ vsldoi 27, 23, 23, 8 # swap
|
|
|
727bdf |
+ vpmsumd 23, 23, 2
|
|
|
727bdf |
+ vxor 27, 27, 24
|
|
|
727bdf |
+ vxor 27, 23, 27 # 1st Xi
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 2nd 4x hash
|
|
|
727bdf |
+ vpmsumd 24, 9, 20
|
|
|
727bdf |
+ vpmsumd 25, 6, 21
|
|
|
727bdf |
+ vpmsumd 26, 3, 22
|
|
|
727bdf |
+ vxor 19, 19, 27 # Xi + X
|
|
|
727bdf |
+ vpmsumd 23, 12, 19 # H4.L * X.L
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 23, 23, 24
|
|
|
727bdf |
+ vxor 23, 23, 25
|
|
|
727bdf |
+ vxor 23, 23, 26 # L
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vpmsumd 24, 13, 19 # H4.L * X.H + H4.H * X.L
|
|
|
727bdf |
+ vpmsumd 25, 10, 20 # H3.L * X1.H + H3.H * X1.L
|
|
|
727bdf |
+ vpmsumd 26, 7, 21
|
|
|
727bdf |
+ vpmsumd 27, 4, 22
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 24, 24, 25
|
|
|
727bdf |
+ vxor 24, 24, 26
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # sum hash and reduction with H Poly
|
|
|
727bdf |
+ vpmsumd 28, 23, 2 # reduction
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 29+32, 29, 29
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 24, 24, 27 # M
|
|
|
727bdf |
+ vsldoi 26, 24, 29, 8 # mL
|
|
|
727bdf |
+ vsldoi 29, 29, 24, 8 # mH
|
|
|
727bdf |
+ vxor 23, 23, 26 # mL + L
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vsldoi 23, 23, 23, 8 # swap
|
|
|
727bdf |
+ vxor 23, 23, 28
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vpmsumd 24, 14, 19 # H4.H * X.H
|
|
|
727bdf |
+ vpmsumd 25, 11, 20
|
|
|
727bdf |
+ vpmsumd 26, 8, 21
|
|
|
727bdf |
+ vpmsumd 27, 5, 22
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 24, 24, 25
|
|
|
727bdf |
+ vxor 24, 24, 26
|
|
|
727bdf |
+ vxor 24, 24, 27 # H
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 24, 24, 29 # H + mH
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # sum hash and reduction with H Poly
|
|
|
727bdf |
+ vsldoi 27, 23, 23, 8 # swap
|
|
|
727bdf |
+ vpmsumd 23, 23, 2
|
|
|
727bdf |
+ vxor 27, 27, 24
|
|
|
727bdf |
+ vxor 23, 23, 27
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 32, 23+32, 23+32 # update hash
|
|
|
727bdf |
+
|
|
|
727bdf |
+.endm
|
|
|
727bdf |
+
|
|
|
727bdf |
+#
|
|
|
727bdf |
+# Compute update single hash
|
|
|
727bdf |
+#
|
|
|
727bdf |
+.macro ppc_update_hash_1x
|
|
|
727bdf |
+ vxor 28, 28, 0
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vxor 19, 19, 19
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vpmsumd 22, 3, 28 # L
|
|
|
727bdf |
+ vpmsumd 23, 4, 28 # M
|
|
|
727bdf |
+ vpmsumd 24, 5, 28 # H
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vpmsumd 27, 22, 2 # reduction
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vsldoi 25, 23, 19, 8 # mL
|
|
|
727bdf |
+ vsldoi 26, 19, 23, 8 # mH
|
|
|
727bdf |
+ vxor 22, 22, 25 # LL + LL
|
|
|
727bdf |
+ vxor 24, 24, 26 # HH + HH
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vsldoi 22, 22, 22, 8 # swap
|
|
|
727bdf |
+ vxor 22, 22, 27
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vsldoi 20, 22, 22, 8 # swap
|
|
|
727bdf |
+ vpmsumd 22, 22, 2 # reduction
|
|
|
727bdf |
+ vxor 20, 20, 24
|
|
|
727bdf |
+ vxor 22, 22, 20
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vmr 0, 22 # update hash
|
|
|
727bdf |
+
|
|
|
727bdf |
+.endm
|
|
|
727bdf |
+
|
|
|
727bdf |
+#
|
|
|
727bdf |
+# ppc_aes_gcm_encrypt (const void *inp, void *out, size_t len,
|
|
|
727bdf |
+# const AES_KEY *key, unsigned char iv[16],
|
|
|
727bdf |
+# void *Xip);
|
|
|
727bdf |
+#
|
|
|
727bdf |
+# r3 - inp
|
|
|
727bdf |
+# r4 - out
|
|
|
727bdf |
+# r5 - len
|
|
|
727bdf |
+# r6 - AES round keys
|
|
|
727bdf |
+# r7 - iv
|
|
|
727bdf |
+# r8 - Xi, HPoli, hash keys
|
|
|
727bdf |
+#
|
|
|
727bdf |
+.global ppc_aes_gcm_encrypt
|
|
|
727bdf |
+.align 5
|
|
|
727bdf |
+ppc_aes_gcm_encrypt:
|
|
|
727bdf |
+_ppc_aes_gcm_encrypt:
|
|
|
727bdf |
+
|
|
|
727bdf |
+ stdu 1,-512(1)
|
|
|
727bdf |
+ mflr 0
|
|
|
727bdf |
+
|
|
|
727bdf |
+ std 14,112(1)
|
|
|
727bdf |
+ std 15,120(1)
|
|
|
727bdf |
+ std 16,128(1)
|
|
|
727bdf |
+ std 17,136(1)
|
|
|
727bdf |
+ std 18,144(1)
|
|
|
727bdf |
+ std 19,152(1)
|
|
|
727bdf |
+ std 20,160(1)
|
|
|
727bdf |
+ std 21,168(1)
|
|
|
727bdf |
+ li 9, 256
|
|
|
727bdf |
+ stvx 20, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 21, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 22, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 23, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 24, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 25, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 26, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 27, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 28, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 29, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 30, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 31, 9, 1
|
|
|
727bdf |
+ std 0, 528(1)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # Load Xi
|
|
|
727bdf |
+ lxvb16x 32, 0, 8 # load Xi
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # load Hash - h^4, h^3, h^2, h
|
|
|
727bdf |
+ li 10, 32
|
|
|
727bdf |
+ lxvd2x 2+32, 10, 8 # H Poli
|
|
|
727bdf |
+ li 10, 48
|
|
|
727bdf |
+ lxvd2x 3+32, 10, 8 # Hl
|
|
|
727bdf |
+ li 10, 64
|
|
|
727bdf |
+ lxvd2x 4+32, 10, 8 # H
|
|
|
727bdf |
+ li 10, 80
|
|
|
727bdf |
+ lxvd2x 5+32, 10, 8 # Hh
|
|
|
727bdf |
+
|
|
|
727bdf |
+ li 10, 96
|
|
|
727bdf |
+ lxvd2x 6+32, 10, 8 # H^2l
|
|
|
727bdf |
+ li 10, 112
|
|
|
727bdf |
+ lxvd2x 7+32, 10, 8 # H^2
|
|
|
727bdf |
+ li 10, 128
|
|
|
727bdf |
+ lxvd2x 8+32, 10, 8 # H^2h
|
|
|
727bdf |
+
|
|
|
727bdf |
+ li 10, 144
|
|
|
727bdf |
+ lxvd2x 9+32, 10, 8 # H^3l
|
|
|
727bdf |
+ li 10, 160
|
|
|
727bdf |
+ lxvd2x 10+32, 10, 8 # H^3
|
|
|
727bdf |
+ li 10, 176
|
|
|
727bdf |
+ lxvd2x 11+32, 10, 8 # H^3h
|
|
|
727bdf |
+
|
|
|
727bdf |
+ li 10, 192
|
|
|
727bdf |
+ lxvd2x 12+32, 10, 8 # H^4l
|
|
|
727bdf |
+ li 10, 208
|
|
|
727bdf |
+ lxvd2x 13+32, 10, 8 # H^4
|
|
|
727bdf |
+ li 10, 224
|
|
|
727bdf |
+ lxvd2x 14+32, 10, 8 # H^4h
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # initialize ICB: GHASH( IV ), IV - r7
|
|
|
727bdf |
+ lxvb16x 30+32, 0, 7 # load IV - v30
|
|
|
727bdf |
+
|
|
|
727bdf |
+ mr 12, 5 # length
|
|
|
727bdf |
+ li 11, 0 # block index
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # counter 1
|
|
|
727bdf |
+ vxor 31, 31, 31
|
|
|
727bdf |
+ vspltisb 22, 1
|
|
|
727bdf |
+ vsldoi 31, 31, 22,1 # counter 1
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # load round key to VSR
|
|
|
727bdf |
+ lxv 0, 0(6)
|
|
|
727bdf |
+ lxv 1, 0x10(6)
|
|
|
727bdf |
+ lxv 2, 0x20(6)
|
|
|
727bdf |
+ lxv 3, 0x30(6)
|
|
|
727bdf |
+ lxv 4, 0x40(6)
|
|
|
727bdf |
+ lxv 5, 0x50(6)
|
|
|
727bdf |
+ lxv 6, 0x60(6)
|
|
|
727bdf |
+ lxv 7, 0x70(6)
|
|
|
727bdf |
+ lxv 8, 0x80(6)
|
|
|
727bdf |
+ lxv 9, 0x90(6)
|
|
|
727bdf |
+ lxv 10, 0xa0(6)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # load rounds - 10 (128), 12 (192), 14 (256)
|
|
|
727bdf |
+ lwz 9,240(6)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ #
|
|
|
727bdf |
+ # vxor state, state, w # addroundkey
|
|
|
727bdf |
+ xxlor 32+29, 0, 0
|
|
|
727bdf |
+ vxor 15, 30, 29 # IV + round key - add round key 0
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 9, 10
|
|
|
727bdf |
+ beq Loop_aes_gcm_8x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # load 2 more round keys (v11, v12)
|
|
|
727bdf |
+ lxv 11, 0xb0(6)
|
|
|
727bdf |
+ lxv 12, 0xc0(6)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 9, 12
|
|
|
727bdf |
+ beq Loop_aes_gcm_8x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # load 2 more round keys (v11, v12, v13, v14)
|
|
|
727bdf |
+ lxv 13, 0xd0(6)
|
|
|
727bdf |
+ lxv 14, 0xe0(6)
|
|
|
727bdf |
+ cmpdi 9, 14
|
|
|
727bdf |
+ beq Loop_aes_gcm_8x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ b aes_gcm_out
|
|
|
727bdf |
+
|
|
|
727bdf |
+.align 5
|
|
|
727bdf |
+Loop_aes_gcm_8x:
|
|
|
727bdf |
+ mr 14, 3
|
|
|
727bdf |
+ mr 9, 4
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # n blocks
|
|
|
727bdf |
+ li 10, 128
|
|
|
727bdf |
+ divdu 10, 5, 10 # n 128 bytes-blocks
|
|
|
727bdf |
+ cmpdi 10, 0
|
|
|
727bdf |
+ beq Loop_last_block
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vaddudm 30, 30, 31 # IV + counter
|
|
|
727bdf |
+ vxor 16, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 17, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 18, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 19, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 20, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 21, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 22, 30, 29
|
|
|
727bdf |
+
|
|
|
727bdf |
+ mtctr 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ li 15, 16
|
|
|
727bdf |
+ li 16, 32
|
|
|
727bdf |
+ li 17, 48
|
|
|
727bdf |
+ li 18, 64
|
|
|
727bdf |
+ li 19, 80
|
|
|
727bdf |
+ li 20, 96
|
|
|
727bdf |
+ li 21, 112
|
|
|
727bdf |
+
|
|
|
727bdf |
+ lwz 10, 240(6)
|
|
|
727bdf |
+
|
|
|
727bdf |
+Loop_8x_block:
|
|
|
727bdf |
+
|
|
|
727bdf |
+ lxvb16x 15, 0, 14 # load block
|
|
|
727bdf |
+ lxvb16x 16, 15, 14 # load block
|
|
|
727bdf |
+ lxvb16x 17, 16, 14 # load block
|
|
|
727bdf |
+ lxvb16x 18, 17, 14 # load block
|
|
|
727bdf |
+ lxvb16x 19, 18, 14 # load block
|
|
|
727bdf |
+ lxvb16x 20, 19, 14 # load block
|
|
|
727bdf |
+ lxvb16x 21, 20, 14 # load block
|
|
|
727bdf |
+ lxvb16x 22, 21, 14 # load block
|
|
|
727bdf |
+ addi 14, 14, 128
|
|
|
727bdf |
+
|
|
|
727bdf |
+ Loop_aes_middle8x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 10, 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 10
|
|
|
727bdf |
+ beq Do_next_ghash
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 192 bits
|
|
|
727bdf |
+ xxlor 24+32, 11, 11
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 16, 16, 23
|
|
|
727bdf |
+ vcipher 17, 17, 23
|
|
|
727bdf |
+ vcipher 18, 18, 23
|
|
|
727bdf |
+ vcipher 19, 19, 23
|
|
|
727bdf |
+ vcipher 20, 20, 23
|
|
|
727bdf |
+ vcipher 21, 21, 23
|
|
|
727bdf |
+ vcipher 22, 22, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+ vcipher 16, 16, 24
|
|
|
727bdf |
+ vcipher 17, 17, 24
|
|
|
727bdf |
+ vcipher 18, 18, 24
|
|
|
727bdf |
+ vcipher 19, 19, 24
|
|
|
727bdf |
+ vcipher 20, 20, 24
|
|
|
727bdf |
+ vcipher 21, 21, 24
|
|
|
727bdf |
+ vcipher 22, 22, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 12, 12
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 12
|
|
|
727bdf |
+ beq Do_next_ghash
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 256 bits
|
|
|
727bdf |
+ xxlor 24+32, 13, 13
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 16, 16, 23
|
|
|
727bdf |
+ vcipher 17, 17, 23
|
|
|
727bdf |
+ vcipher 18, 18, 23
|
|
|
727bdf |
+ vcipher 19, 19, 23
|
|
|
727bdf |
+ vcipher 20, 20, 23
|
|
|
727bdf |
+ vcipher 21, 21, 23
|
|
|
727bdf |
+ vcipher 22, 22, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+ vcipher 16, 16, 24
|
|
|
727bdf |
+ vcipher 17, 17, 24
|
|
|
727bdf |
+ vcipher 18, 18, 24
|
|
|
727bdf |
+ vcipher 19, 19, 24
|
|
|
727bdf |
+ vcipher 20, 20, 24
|
|
|
727bdf |
+ vcipher 21, 21, 24
|
|
|
727bdf |
+ vcipher 22, 22, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 14, 14
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 14
|
|
|
727bdf |
+ beq Do_next_ghash
|
|
|
727bdf |
+ b aes_gcm_out
|
|
|
727bdf |
+
|
|
|
727bdf |
+Do_next_ghash:
|
|
|
727bdf |
+
|
|
|
727bdf |
+ #
|
|
|
727bdf |
+ # last round
|
|
|
727bdf |
+ vcipherlast 15, 15, 23
|
|
|
727bdf |
+ vcipherlast 16, 16, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 47, 47, 15
|
|
|
727bdf |
+ stxvb16x 47, 0, 9 # store output
|
|
|
727bdf |
+ xxlxor 48, 48, 16
|
|
|
727bdf |
+ stxvb16x 48, 15, 9 # store output
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipherlast 17, 17, 23
|
|
|
727bdf |
+ vcipherlast 18, 18, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 49, 49, 17
|
|
|
727bdf |
+ stxvb16x 49, 16, 9 # store output
|
|
|
727bdf |
+ xxlxor 50, 50, 18
|
|
|
727bdf |
+ stxvb16x 50, 17, 9 # store output
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipherlast 19, 19, 23
|
|
|
727bdf |
+ vcipherlast 20, 20, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 51, 51, 19
|
|
|
727bdf |
+ stxvb16x 51, 18, 9 # store output
|
|
|
727bdf |
+ xxlxor 52, 52, 20
|
|
|
727bdf |
+ stxvb16x 52, 19, 9 # store output
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipherlast 21, 21, 23
|
|
|
727bdf |
+ vcipherlast 22, 22, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 53, 53, 21
|
|
|
727bdf |
+ stxvb16x 53, 20, 9 # store output
|
|
|
727bdf |
+ xxlxor 54, 54, 22
|
|
|
727bdf |
+ stxvb16x 54, 21, 9 # store output
|
|
|
727bdf |
+
|
|
|
727bdf |
+ addi 9, 9, 128
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # ghash here
|
|
|
727bdf |
+ ppc_aes_gcm_ghash2_4x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 27+32, 0, 0
|
|
|
727bdf |
+ vaddudm 30, 30, 31 # IV + counter
|
|
|
727bdf |
+ vmr 29, 30
|
|
|
727bdf |
+ vxor 15, 30, 27 # add round key
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 16, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 17, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 18, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 19, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 20, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 21, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 22, 30, 27
|
|
|
727bdf |
+
|
|
|
727bdf |
+ addi 12, 12, -128
|
|
|
727bdf |
+ addi 11, 11, 128
|
|
|
727bdf |
+
|
|
|
727bdf |
+ bdnz Loop_8x_block
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vmr 30, 29
|
|
|
727bdf |
+
|
|
|
727bdf |
+Loop_last_block:
|
|
|
727bdf |
+ cmpdi 12, 0
|
|
|
727bdf |
+ beq aes_gcm_out
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # loop last few blocks
|
|
|
727bdf |
+ li 10, 16
|
|
|
727bdf |
+ divdu 10, 12, 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ mtctr 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ lwz 10, 240(6)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 12, 16
|
|
|
727bdf |
+ blt Final_block
|
|
|
727bdf |
+
|
|
|
727bdf |
+.macro Loop_aes_middle_1x
|
|
|
727bdf |
+ xxlor 19+32, 1, 1
|
|
|
727bdf |
+ xxlor 20+32, 2, 2
|
|
|
727bdf |
+ xxlor 21+32, 3, 3
|
|
|
727bdf |
+ xxlor 22+32, 4, 4
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 19
|
|
|
727bdf |
+ vcipher 15, 15, 20
|
|
|
727bdf |
+ vcipher 15, 15, 21
|
|
|
727bdf |
+ vcipher 15, 15, 22
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 19+32, 5, 5
|
|
|
727bdf |
+ xxlor 20+32, 6, 6
|
|
|
727bdf |
+ xxlor 21+32, 7, 7
|
|
|
727bdf |
+ xxlor 22+32, 8, 8
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 19
|
|
|
727bdf |
+ vcipher 15, 15, 20
|
|
|
727bdf |
+ vcipher 15, 15, 21
|
|
|
727bdf |
+ vcipher 15, 15, 22
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 19+32, 9, 9
|
|
|
727bdf |
+ vcipher 15, 15, 19
|
|
|
727bdf |
+.endm
|
|
|
727bdf |
+
|
|
|
727bdf |
+Next_rem_block:
|
|
|
727bdf |
+ lxvb16x 15, 0, 14 # load block
|
|
|
727bdf |
+
|
|
|
727bdf |
+ Loop_aes_middle_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 10, 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 10
|
|
|
727bdf |
+ beq Do_next_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 192 bits
|
|
|
727bdf |
+ xxlor 24+32, 11, 11
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 12, 12
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 12
|
|
|
727bdf |
+ beq Do_next_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 256 bits
|
|
|
727bdf |
+ xxlor 24+32, 13, 13
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 14, 14
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 14
|
|
|
727bdf |
+ beq Do_next_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+Do_next_1x:
|
|
|
727bdf |
+ vcipherlast 15, 15, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 47, 47, 15
|
|
|
727bdf |
+ stxvb16x 47, 0, 9 # store output
|
|
|
727bdf |
+ addi 14, 14, 16
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vmr 28, 15
|
|
|
727bdf |
+ ppc_update_hash_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ addi 12, 12, -16
|
|
|
727bdf |
+ addi 11, 11, 16
|
|
|
727bdf |
+ xxlor 19+32, 0, 0
|
|
|
727bdf |
+ vaddudm 30, 30, 31 # IV + counter
|
|
|
727bdf |
+ vxor 15, 30, 19 # add round key
|
|
|
727bdf |
+
|
|
|
727bdf |
+ bdnz Next_rem_block
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 12, 0
|
|
|
727bdf |
+ beq aes_gcm_out
|
|
|
727bdf |
+
|
|
|
727bdf |
+Final_block:
|
|
|
727bdf |
+ Loop_aes_middle_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 10, 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 10
|
|
|
727bdf |
+ beq Do_final_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 192 bits
|
|
|
727bdf |
+ xxlor 24+32, 11, 11
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 12, 12
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 12
|
|
|
727bdf |
+ beq Do_final_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 256 bits
|
|
|
727bdf |
+ xxlor 24+32, 13, 13
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 14, 14
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 14
|
|
|
727bdf |
+ beq Do_final_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+Do_final_1x:
|
|
|
727bdf |
+ vcipherlast 15, 15, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ lxvb16x 15, 0, 14 # load last block
|
|
|
727bdf |
+ xxlxor 47, 47, 15
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # create partial block mask
|
|
|
727bdf |
+ li 15, 16
|
|
|
727bdf |
+ sub 15, 15, 12 # index to the mask
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vspltisb 16, -1 # first 16 bytes - 0xffff...ff
|
|
|
727bdf |
+ vspltisb 17, 0 # second 16 bytes - 0x0000...00
|
|
|
727bdf |
+ li 10, 192
|
|
|
727bdf |
+ stvx 16, 10, 1
|
|
|
727bdf |
+ addi 10, 10, 16
|
|
|
727bdf |
+ stvx 17, 10, 1
|
|
|
727bdf |
+
|
|
|
727bdf |
+ addi 10, 1, 192
|
|
|
727bdf |
+ lxvb16x 16, 15, 10 # load partial block mask
|
|
|
727bdf |
+ xxland 47, 47, 16
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vmr 28, 15
|
|
|
727bdf |
+ ppc_update_hash_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # * should store only the remaining bytes.
|
|
|
727bdf |
+ bl Write_partial_block
|
|
|
727bdf |
+
|
|
|
727bdf |
+ b aes_gcm_out
|
|
|
727bdf |
+
|
|
|
727bdf |
+#
|
|
|
727bdf |
+# Write partial block
|
|
|
727bdf |
+# r9 - output
|
|
|
727bdf |
+# r12 - remaining bytes
|
|
|
727bdf |
+# v15 - partial input data
|
|
|
727bdf |
+#
|
|
|
727bdf |
+Write_partial_block:
|
|
|
727bdf |
+ li 10, 192
|
|
|
727bdf |
+ stxvb16x 15+32, 10, 1 # last block
|
|
|
727bdf |
+
|
|
|
727bdf |
+ #add 10, 9, 11 # Output
|
|
|
727bdf |
+ addi 10, 9, -1
|
|
|
727bdf |
+ addi 16, 1, 191
|
|
|
727bdf |
+
|
|
|
727bdf |
+ mtctr 12 # remaining bytes
|
|
|
727bdf |
+ li 15, 0
|
|
|
727bdf |
+
|
|
|
727bdf |
+Write_last_byte:
|
|
|
727bdf |
+ lbzu 14, 1(16)
|
|
|
727bdf |
+ stbu 14, 1(10)
|
|
|
727bdf |
+ bdnz Write_last_byte
|
|
|
727bdf |
+ blr
|
|
|
727bdf |
+
|
|
|
727bdf |
+aes_gcm_out:
|
|
|
727bdf |
+ # out = state
|
|
|
727bdf |
+ stxvb16x 32, 0, 8 # write out Xi
|
|
|
727bdf |
+ add 3, 11, 12 # return count
|
|
|
727bdf |
+
|
|
|
727bdf |
+ li 9, 256
|
|
|
727bdf |
+ lvx 20, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 21, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 22, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 23, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 24, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 25, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 26, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 27, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 28, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 29, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 30, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ lvx 31, 9, 1
|
|
|
727bdf |
+
|
|
|
727bdf |
+ ld 0, 528(1)
|
|
|
727bdf |
+ ld 14,112(1)
|
|
|
727bdf |
+ ld 15,120(1)
|
|
|
727bdf |
+ ld 16,128(1)
|
|
|
727bdf |
+ ld 17,136(1)
|
|
|
727bdf |
+ ld 18,144(1)
|
|
|
727bdf |
+ ld 19,152(1)
|
|
|
727bdf |
+ ld 20,160(1)
|
|
|
727bdf |
+ ld 21,168(1)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ mtlr 0
|
|
|
727bdf |
+ addi 1, 1, 512
|
|
|
727bdf |
+ blr
|
|
|
727bdf |
+
|
|
|
727bdf |
+#
|
|
|
727bdf |
+# 8x Decrypt
|
|
|
727bdf |
+#
|
|
|
727bdf |
+.global ppc_aes_gcm_decrypt
|
|
|
727bdf |
+.align 5
|
|
|
727bdf |
+ppc_aes_gcm_decrypt:
|
|
|
727bdf |
+_ppc_aes_gcm_decrypt:
|
|
|
727bdf |
+
|
|
|
727bdf |
+ stdu 1,-512(1)
|
|
|
727bdf |
+ mflr 0
|
|
|
727bdf |
+
|
|
|
727bdf |
+ std 14,112(1)
|
|
|
727bdf |
+ std 15,120(1)
|
|
|
727bdf |
+ std 16,128(1)
|
|
|
727bdf |
+ std 17,136(1)
|
|
|
727bdf |
+ std 18,144(1)
|
|
|
727bdf |
+ std 19,152(1)
|
|
|
727bdf |
+ std 20,160(1)
|
|
|
727bdf |
+ std 21,168(1)
|
|
|
727bdf |
+ li 9, 256
|
|
|
727bdf |
+ stvx 20, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 21, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 22, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 23, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 24, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 25, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 26, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 27, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 28, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 29, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 30, 9, 1
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+ stvx 31, 9, 1
|
|
|
727bdf |
+ std 0, 528(1)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # Load Xi
|
|
|
727bdf |
+ lxvb16x 32, 0, 8 # load Xi
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # load Hash - h^4, h^3, h^2, h
|
|
|
727bdf |
+ li 10, 32
|
|
|
727bdf |
+ lxvd2x 2+32, 10, 8 # H Poli
|
|
|
727bdf |
+ li 10, 48
|
|
|
727bdf |
+ lxvd2x 3+32, 10, 8 # Hl
|
|
|
727bdf |
+ li 10, 64
|
|
|
727bdf |
+ lxvd2x 4+32, 10, 8 # H
|
|
|
727bdf |
+ li 10, 80
|
|
|
727bdf |
+ lxvd2x 5+32, 10, 8 # Hh
|
|
|
727bdf |
+
|
|
|
727bdf |
+ li 10, 96
|
|
|
727bdf |
+ lxvd2x 6+32, 10, 8 # H^2l
|
|
|
727bdf |
+ li 10, 112
|
|
|
727bdf |
+ lxvd2x 7+32, 10, 8 # H^2
|
|
|
727bdf |
+ li 10, 128
|
|
|
727bdf |
+ lxvd2x 8+32, 10, 8 # H^2h
|
|
|
727bdf |
+
|
|
|
727bdf |
+ li 10, 144
|
|
|
727bdf |
+ lxvd2x 9+32, 10, 8 # H^3l
|
|
|
727bdf |
+ li 10, 160
|
|
|
727bdf |
+ lxvd2x 10+32, 10, 8 # H^3
|
|
|
727bdf |
+ li 10, 176
|
|
|
727bdf |
+ lxvd2x 11+32, 10, 8 # H^3h
|
|
|
727bdf |
+
|
|
|
727bdf |
+ li 10, 192
|
|
|
727bdf |
+ lxvd2x 12+32, 10, 8 # H^4l
|
|
|
727bdf |
+ li 10, 208
|
|
|
727bdf |
+ lxvd2x 13+32, 10, 8 # H^4
|
|
|
727bdf |
+ li 10, 224
|
|
|
727bdf |
+ lxvd2x 14+32, 10, 8 # H^4h
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # initialize ICB: GHASH( IV ), IV - r7
|
|
|
727bdf |
+ lxvb16x 30+32, 0, 7 # load IV - v30
|
|
|
727bdf |
+
|
|
|
727bdf |
+ mr 12, 5 # length
|
|
|
727bdf |
+ li 11, 0 # block index
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # counter 1
|
|
|
727bdf |
+ vxor 31, 31, 31
|
|
|
727bdf |
+ vspltisb 22, 1
|
|
|
727bdf |
+ vsldoi 31, 31, 22,1 # counter 1
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # load round key to VSR
|
|
|
727bdf |
+ lxv 0, 0(6)
|
|
|
727bdf |
+ lxv 1, 0x10(6)
|
|
|
727bdf |
+ lxv 2, 0x20(6)
|
|
|
727bdf |
+ lxv 3, 0x30(6)
|
|
|
727bdf |
+ lxv 4, 0x40(6)
|
|
|
727bdf |
+ lxv 5, 0x50(6)
|
|
|
727bdf |
+ lxv 6, 0x60(6)
|
|
|
727bdf |
+ lxv 7, 0x70(6)
|
|
|
727bdf |
+ lxv 8, 0x80(6)
|
|
|
727bdf |
+ lxv 9, 0x90(6)
|
|
|
727bdf |
+ lxv 10, 0xa0(6)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # load rounds - 10 (128), 12 (192), 14 (256)
|
|
|
727bdf |
+ lwz 9,240(6)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ #
|
|
|
727bdf |
+ # vxor state, state, w # addroundkey
|
|
|
727bdf |
+ xxlor 32+29, 0, 0
|
|
|
727bdf |
+ vxor 15, 30, 29 # IV + round key - add round key 0
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 9, 10
|
|
|
727bdf |
+ beq Loop_aes_gcm_8x_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # load 2 more round keys (v11, v12)
|
|
|
727bdf |
+ lxv 11, 0xb0(6)
|
|
|
727bdf |
+ lxv 12, 0xc0(6)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 9, 12
|
|
|
727bdf |
+ beq Loop_aes_gcm_8x_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # load 2 more round keys (v11, v12, v13, v14)
|
|
|
727bdf |
+ lxv 13, 0xd0(6)
|
|
|
727bdf |
+ lxv 14, 0xe0(6)
|
|
|
727bdf |
+ cmpdi 9, 14
|
|
|
727bdf |
+ beq Loop_aes_gcm_8x_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ b aes_gcm_out
|
|
|
727bdf |
+
|
|
|
727bdf |
+.align 5
|
|
|
727bdf |
+Loop_aes_gcm_8x_dec:
|
|
|
727bdf |
+ mr 14, 3
|
|
|
727bdf |
+ mr 9, 4
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # n blocks
|
|
|
727bdf |
+ li 10, 128
|
|
|
727bdf |
+ divdu 10, 5, 10 # n 128 bytes-blocks
|
|
|
727bdf |
+ cmpdi 10, 0
|
|
|
727bdf |
+ beq Loop_last_block_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vaddudm 30, 30, 31 # IV + counter
|
|
|
727bdf |
+ vxor 16, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 17, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 18, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 19, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 20, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 21, 30, 29
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 22, 30, 29
|
|
|
727bdf |
+
|
|
|
727bdf |
+ mtctr 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ li 15, 16
|
|
|
727bdf |
+ li 16, 32
|
|
|
727bdf |
+ li 17, 48
|
|
|
727bdf |
+ li 18, 64
|
|
|
727bdf |
+ li 19, 80
|
|
|
727bdf |
+ li 20, 96
|
|
|
727bdf |
+ li 21, 112
|
|
|
727bdf |
+
|
|
|
727bdf |
+ lwz 10, 240(6)
|
|
|
727bdf |
+
|
|
|
727bdf |
+Loop_8x_block_dec:
|
|
|
727bdf |
+
|
|
|
727bdf |
+ lxvb16x 15, 0, 14 # load block
|
|
|
727bdf |
+ lxvb16x 16, 15, 14 # load block
|
|
|
727bdf |
+ lxvb16x 17, 16, 14 # load block
|
|
|
727bdf |
+ lxvb16x 18, 17, 14 # load block
|
|
|
727bdf |
+ lxvb16x 19, 18, 14 # load block
|
|
|
727bdf |
+ lxvb16x 20, 19, 14 # load block
|
|
|
727bdf |
+ lxvb16x 21, 20, 14 # load block
|
|
|
727bdf |
+ lxvb16x 22, 21, 14 # load block
|
|
|
727bdf |
+ addi 14, 14, 128
|
|
|
727bdf |
+
|
|
|
727bdf |
+ Loop_aes_middle8x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 10, 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 10
|
|
|
727bdf |
+ beq Do_last_aes_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 192 bits
|
|
|
727bdf |
+ xxlor 24+32, 11, 11
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 16, 16, 23
|
|
|
727bdf |
+ vcipher 17, 17, 23
|
|
|
727bdf |
+ vcipher 18, 18, 23
|
|
|
727bdf |
+ vcipher 19, 19, 23
|
|
|
727bdf |
+ vcipher 20, 20, 23
|
|
|
727bdf |
+ vcipher 21, 21, 23
|
|
|
727bdf |
+ vcipher 22, 22, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+ vcipher 16, 16, 24
|
|
|
727bdf |
+ vcipher 17, 17, 24
|
|
|
727bdf |
+ vcipher 18, 18, 24
|
|
|
727bdf |
+ vcipher 19, 19, 24
|
|
|
727bdf |
+ vcipher 20, 20, 24
|
|
|
727bdf |
+ vcipher 21, 21, 24
|
|
|
727bdf |
+ vcipher 22, 22, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 12, 12
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 12
|
|
|
727bdf |
+ beq Do_last_aes_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 256 bits
|
|
|
727bdf |
+ xxlor 24+32, 13, 13
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 16, 16, 23
|
|
|
727bdf |
+ vcipher 17, 17, 23
|
|
|
727bdf |
+ vcipher 18, 18, 23
|
|
|
727bdf |
+ vcipher 19, 19, 23
|
|
|
727bdf |
+ vcipher 20, 20, 23
|
|
|
727bdf |
+ vcipher 21, 21, 23
|
|
|
727bdf |
+ vcipher 22, 22, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+ vcipher 16, 16, 24
|
|
|
727bdf |
+ vcipher 17, 17, 24
|
|
|
727bdf |
+ vcipher 18, 18, 24
|
|
|
727bdf |
+ vcipher 19, 19, 24
|
|
|
727bdf |
+ vcipher 20, 20, 24
|
|
|
727bdf |
+ vcipher 21, 21, 24
|
|
|
727bdf |
+ vcipher 22, 22, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 14, 14
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 14
|
|
|
727bdf |
+ beq Do_last_aes_dec
|
|
|
727bdf |
+ b aes_gcm_out
|
|
|
727bdf |
+
|
|
|
727bdf |
+Do_last_aes_dec:
|
|
|
727bdf |
+
|
|
|
727bdf |
+ #
|
|
|
727bdf |
+ # last round
|
|
|
727bdf |
+ vcipherlast 15, 15, 23
|
|
|
727bdf |
+ vcipherlast 16, 16, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 47, 47, 15
|
|
|
727bdf |
+ stxvb16x 47, 0, 9 # store output
|
|
|
727bdf |
+ xxlxor 48, 48, 16
|
|
|
727bdf |
+ stxvb16x 48, 15, 9 # store output
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipherlast 17, 17, 23
|
|
|
727bdf |
+ vcipherlast 18, 18, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 49, 49, 17
|
|
|
727bdf |
+ stxvb16x 49, 16, 9 # store output
|
|
|
727bdf |
+ xxlxor 50, 50, 18
|
|
|
727bdf |
+ stxvb16x 50, 17, 9 # store output
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipherlast 19, 19, 23
|
|
|
727bdf |
+ vcipherlast 20, 20, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 51, 51, 19
|
|
|
727bdf |
+ stxvb16x 51, 18, 9 # store output
|
|
|
727bdf |
+ xxlxor 52, 52, 20
|
|
|
727bdf |
+ stxvb16x 52, 19, 9 # store output
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipherlast 21, 21, 23
|
|
|
727bdf |
+ vcipherlast 22, 22, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 53, 53, 21
|
|
|
727bdf |
+ stxvb16x 53, 20, 9 # store output
|
|
|
727bdf |
+ xxlxor 54, 54, 22
|
|
|
727bdf |
+ stxvb16x 54, 21, 9 # store output
|
|
|
727bdf |
+
|
|
|
727bdf |
+ addi 9, 9, 128
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 15+32, 15, 15
|
|
|
727bdf |
+ xxlor 16+32, 16, 16
|
|
|
727bdf |
+ xxlor 17+32, 17, 17
|
|
|
727bdf |
+ xxlor 18+32, 18, 18
|
|
|
727bdf |
+ xxlor 19+32, 19, 19
|
|
|
727bdf |
+ xxlor 20+32, 20, 20
|
|
|
727bdf |
+ xxlor 21+32, 21, 21
|
|
|
727bdf |
+ xxlor 22+32, 22, 22
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # ghash here
|
|
|
727bdf |
+ ppc_aes_gcm_ghash2_4x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 27+32, 0, 0
|
|
|
727bdf |
+ vaddudm 30, 30, 31 # IV + counter
|
|
|
727bdf |
+ vmr 29, 30
|
|
|
727bdf |
+ vxor 15, 30, 27 # add round key
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 16, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 17, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 18, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 19, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 20, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 21, 30, 27
|
|
|
727bdf |
+ vaddudm 30, 30, 31
|
|
|
727bdf |
+ vxor 22, 30, 27
|
|
|
727bdf |
+ addi 12, 12, -128
|
|
|
727bdf |
+ addi 11, 11, 128
|
|
|
727bdf |
+
|
|
|
727bdf |
+ bdnz Loop_8x_block_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vmr 30, 29
|
|
|
727bdf |
+
|
|
|
727bdf |
+Loop_last_block_dec:
|
|
|
727bdf |
+ cmpdi 12, 0
|
|
|
727bdf |
+ beq aes_gcm_out
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # loop last few blocks
|
|
|
727bdf |
+ li 10, 16
|
|
|
727bdf |
+ divdu 10, 12, 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ mtctr 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ lwz 10,240(6)
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 12, 16
|
|
|
727bdf |
+ blt Final_block_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+Next_rem_block_dec:
|
|
|
727bdf |
+ lxvb16x 15, 0, 14 # load block
|
|
|
727bdf |
+
|
|
|
727bdf |
+ Loop_aes_middle_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 10, 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 10
|
|
|
727bdf |
+ beq Do_next_1x_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 192 bits
|
|
|
727bdf |
+ xxlor 24+32, 11, 11
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 12, 12
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 12
|
|
|
727bdf |
+ beq Do_next_1x_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 256 bits
|
|
|
727bdf |
+ xxlor 24+32, 13, 13
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 14, 14
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 14
|
|
|
727bdf |
+ beq Do_next_1x_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+Do_next_1x_dec:
|
|
|
727bdf |
+ vcipherlast 15, 15, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlxor 47, 47, 15
|
|
|
727bdf |
+ stxvb16x 47, 0, 9 # store output
|
|
|
727bdf |
+ addi 14, 14, 16
|
|
|
727bdf |
+ addi 9, 9, 16
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 28+32, 15, 15
|
|
|
727bdf |
+ ppc_update_hash_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ addi 12, 12, -16
|
|
|
727bdf |
+ addi 11, 11, 16
|
|
|
727bdf |
+ xxlor 19+32, 0, 0
|
|
|
727bdf |
+ vaddudm 30, 30, 31 # IV + counter
|
|
|
727bdf |
+ vxor 15, 30, 19 # add round key
|
|
|
727bdf |
+
|
|
|
727bdf |
+ bdnz Next_rem_block_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 12, 0
|
|
|
727bdf |
+ beq aes_gcm_out
|
|
|
727bdf |
+
|
|
|
727bdf |
+Final_block_dec:
|
|
|
727bdf |
+ Loop_aes_middle_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 10, 10
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 10
|
|
|
727bdf |
+ beq Do_final_1x_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 192 bits
|
|
|
727bdf |
+ xxlor 24+32, 11, 11
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 12, 12
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 12
|
|
|
727bdf |
+ beq Do_final_1x_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # 256 bits
|
|
|
727bdf |
+ xxlor 24+32, 13, 13
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vcipher 15, 15, 23
|
|
|
727bdf |
+ vcipher 15, 15, 24
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 23+32, 14, 14
|
|
|
727bdf |
+
|
|
|
727bdf |
+ cmpdi 10, 14
|
|
|
727bdf |
+ beq Do_final_1x_dec
|
|
|
727bdf |
+
|
|
|
727bdf |
+Do_final_1x_dec:
|
|
|
727bdf |
+ vcipherlast 15, 15, 23
|
|
|
727bdf |
+
|
|
|
727bdf |
+ lxvb16x 15, 0, 14 # load block
|
|
|
727bdf |
+ xxlxor 47, 47, 15
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # create partial block mask
|
|
|
727bdf |
+ li 15, 16
|
|
|
727bdf |
+ sub 15, 15, 12 # index to the mask
|
|
|
727bdf |
+
|
|
|
727bdf |
+ vspltisb 16, -1 # first 16 bytes - 0xffff...ff
|
|
|
727bdf |
+ vspltisb 17, 0 # second 16 bytes - 0x0000...00
|
|
|
727bdf |
+ li 10, 192
|
|
|
727bdf |
+ stvx 16, 10, 1
|
|
|
727bdf |
+ addi 10, 10, 16
|
|
|
727bdf |
+ stvx 17, 10, 1
|
|
|
727bdf |
+
|
|
|
727bdf |
+ addi 10, 1, 192
|
|
|
727bdf |
+ lxvb16x 16, 15, 10 # load block mask
|
|
|
727bdf |
+ xxland 47, 47, 16
|
|
|
727bdf |
+
|
|
|
727bdf |
+ xxlor 28+32, 15, 15
|
|
|
727bdf |
+ ppc_update_hash_1x
|
|
|
727bdf |
+
|
|
|
727bdf |
+ # * should store only the remaining bytes.
|
|
|
727bdf |
+ bl Write_partial_block
|
|
|
727bdf |
+
|
|
|
727bdf |
+ b aes_gcm_out
|
|
|
727bdf |
+
|
|
|
727bdf |
+
|
|
|
727bdf |
+___
|
|
|
727bdf |
+
|
|
|
727bdf |
+foreach (split("\n",$code)) {
|
|
|
727bdf |
+ s/\`([^\`]*)\`/eval $1/geo;
|
|
|
727bdf |
+
|
|
|
727bdf |
+ if ($flavour =~ /le$/o) { # little-endian
|
|
|
727bdf |
+ s/le\?//o or
|
|
|
727bdf |
+ s/be\?/#be#/o;
|
|
|
727bdf |
+ } else {
|
|
|
727bdf |
+ s/le\?/#le#/o or
|
|
|
727bdf |
+ s/be\?//o;
|
|
|
727bdf |
+ }
|
|
|
727bdf |
+ print $_,"\n";
|
|
|
727bdf |
+}
|
|
|
727bdf |
+
|
|
|
727bdf |
+close STDOUT or die "error closing STDOUT: $!"; # enforce flush
|
|
|
727bdf |
diff --git a/crypto/modes/build.info b/crypto/modes/build.info
|
|
|
727bdf |
index 687e872..0ea122e 100644
|
|
|
727bdf |
--- a/crypto/modes/build.info
|
|
|
727bdf |
+++ b/crypto/modes/build.info
|
|
|
727bdf |
@@ -32,7 +32,7 @@ IF[{- !$disabled{asm} -}]
|
|
|
727bdf |
$MODESASM_parisc20_64=$MODESASM_parisc11
|
|
|
727bdf |
$MODESDEF_parisc20_64=$MODESDEF_parisc11
|
|
|
727bdf |
|
|
|
727bdf |
- $MODESASM_ppc32=ghashp8-ppc.s
|
|
|
727bdf |
+ $MODESASM_ppc32=ghashp8-ppc.s aes-gcm-ppc.s
|
|
|
727bdf |
$MODESDEF_ppc32=
|
|
|
727bdf |
$MODESASM_ppc64=$MODESASM_ppc32
|
|
|
727bdf |
$MODESDEF_ppc64=$MODESDEF_ppc32
|
|
|
727bdf |
@@ -71,6 +71,7 @@ INCLUDE[ghash-sparcv9.o]=..
|
|
|
727bdf |
GENERATE[ghash-alpha.S]=asm/ghash-alpha.pl
|
|
|
727bdf |
GENERATE[ghash-parisc.s]=asm/ghash-parisc.pl
|
|
|
727bdf |
GENERATE[ghashp8-ppc.s]=asm/ghashp8-ppc.pl
|
|
|
727bdf |
+GENERATE[aes-gcm-ppc.s]=asm/aes-gcm-ppc.pl
|
|
|
727bdf |
GENERATE[ghash-armv4.S]=asm/ghash-armv4.pl
|
|
|
727bdf |
INCLUDE[ghash-armv4.o]=..
|
|
|
727bdf |
GENERATE[ghashv8-armx.S]=asm/ghashv8-armx.pl
|
|
|
727bdf |
diff --git a/include/crypto/aes_platform.h b/include/crypto/aes_platform.h
|
|
|
727bdf |
index e95ad5a..0c281a3 100644
|
|
|
727bdf |
--- a/include/crypto/aes_platform.h
|
|
|
727bdf |
+++ b/include/crypto/aes_platform.h
|
|
|
727bdf |
@@ -74,6 +74,26 @@ void AES_xts_decrypt(const unsigned char *inp, unsigned char *out, size_t len,
|
|
|
727bdf |
# define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
|
|
|
727bdf |
# define HWAES_xts_encrypt aes_p8_xts_encrypt
|
|
|
727bdf |
# define HWAES_xts_decrypt aes_p8_xts_decrypt
|
|
|
727bdf |
+# define PPC_AES_GCM_CAPABLE (OPENSSL_ppccap_P & PPC_MADD300)
|
|
|
727bdf |
+# define AES_GCM_ENC_BYTES 128
|
|
|
727bdf |
+# define AES_GCM_DEC_BYTES 128
|
|
|
727bdf |
+size_t ppc_aes_gcm_encrypt(const unsigned char *in, unsigned char *out,
|
|
|
727bdf |
+ size_t len, const void *key, unsigned char ivec[16],
|
|
|
727bdf |
+ u64 *Xi);
|
|
|
727bdf |
+size_t ppc_aes_gcm_decrypt(const unsigned char *in, unsigned char *out,
|
|
|
727bdf |
+ size_t len, const void *key, unsigned char ivec[16],
|
|
|
727bdf |
+ u64 *Xi);
|
|
|
727bdf |
+size_t ppc_aes_gcm_encrypt_wrap(const unsigned char *in, unsigned char *out,
|
|
|
727bdf |
+ size_t len, const void *key,
|
|
|
727bdf |
+ unsigned char ivec[16], u64 *Xi);
|
|
|
727bdf |
+size_t ppc_aes_gcm_decrypt_wrap(const unsigned char *in, unsigned char *out,
|
|
|
727bdf |
+ size_t len, const void *key,
|
|
|
727bdf |
+ unsigned char ivec[16], u64 *Xi);
|
|
|
727bdf |
+# define AES_gcm_encrypt ppc_aes_gcm_encrypt_wrap
|
|
|
727bdf |
+# define AES_gcm_decrypt ppc_aes_gcm_decrypt_wrap
|
|
|
727bdf |
+# define AES_GCM_ASM(gctx) ((gctx)->ctr==aes_p8_ctr32_encrypt_blocks && \
|
|
|
727bdf |
+ (gctx)->gcm.ghash==gcm_ghash_p8)
|
|
|
727bdf |
+void gcm_ghash_p8(u64 Xi[2],const u128 Htable[16],const u8 *inp, size_t len);
|
|
|
727bdf |
# endif /* PPC */
|
|
|
727bdf |
|
|
|
727bdf |
# if (defined(__arm__) || defined(__arm) || defined(__aarch64__))
|
|
|
727bdf |
diff --git a/providers/implementations/ciphers/cipher_aes_gcm_hw.c b/providers/implementations/ciphers/cipher_aes_gcm_hw.c
|
|
|
727bdf |
index 44fa9d4..789ec12 100644
|
|
|
727bdf |
--- a/providers/implementations/ciphers/cipher_aes_gcm_hw.c
|
|
|
727bdf |
+++ b/providers/implementations/ciphers/cipher_aes_gcm_hw.c
|
|
|
727bdf |
@@ -141,6 +141,8 @@ static const PROV_GCM_HW aes_gcm = {
|
|
|
727bdf |
# include "cipher_aes_gcm_hw_t4.inc"
|
|
|
727bdf |
#elif defined(AES_PMULL_CAPABLE) && defined(AES_GCM_ASM)
|
|
|
727bdf |
# include "cipher_aes_gcm_hw_armv8.inc"
|
|
|
727bdf |
+#elif defined(PPC_AES_GCM_CAPABLE)
|
|
|
727bdf |
+# include "cipher_aes_gcm_hw_ppc.inc"
|
|
|
727bdf |
#else
|
|
|
727bdf |
const PROV_GCM_HW *ossl_prov_aes_hw_gcm(size_t keybits)
|
|
|
727bdf |
{
|
|
|
727bdf |
diff --git a/providers/implementations/ciphers/cipher_aes_gcm_hw_ppc.inc b/providers/implementations/ciphers/cipher_aes_gcm_hw_ppc.inc
|
|
|
727bdf |
new file mode 100644
|
|
|
727bdf |
index 0000000..4eed0f4
|
|
|
727bdf |
--- /dev/null
|
|
|
727bdf |
+++ b/providers/implementations/ciphers/cipher_aes_gcm_hw_ppc.inc
|
|
|
727bdf |
@@ -0,0 +1,119 @@
|
|
|
727bdf |
+/*
|
|
|
727bdf |
+ * Copyright 2001-2021 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
727bdf |
+ *
|
|
|
727bdf |
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
|
727bdf |
+ * this file except in compliance with the License. You can obtain a copy
|
|
|
727bdf |
+ * in the file LICENSE in the source distribution or at
|
|
|
727bdf |
+ * https://www.openssl.org/source/license.html
|
|
|
727bdf |
+ */
|
|
|
727bdf |
+
|
|
|
727bdf |
+/*-
|
|
|
727bdf |
+ * PPC support for AES GCM.
|
|
|
727bdf |
+ * This file is included by cipher_aes_gcm_hw.c
|
|
|
727bdf |
+ */
|
|
|
727bdf |
+
|
|
|
727bdf |
+static int aes_ppc_gcm_initkey(PROV_GCM_CTX *ctx, const unsigned char *key,
|
|
|
727bdf |
+ size_t keylen)
|
|
|
727bdf |
+{
|
|
|
727bdf |
+ PROV_AES_GCM_CTX *actx = (PROV_AES_GCM_CTX *)ctx;
|
|
|
727bdf |
+ AES_KEY *ks = &actx->ks.ks;
|
|
|
727bdf |
+
|
|
|
727bdf |
+ GCM_HW_SET_KEY_CTR_FN(ks, aes_p8_set_encrypt_key, aes_p8_encrypt,
|
|
|
727bdf |
+ aes_p8_ctr32_encrypt_blocks);
|
|
|
727bdf |
+ return 1;
|
|
|
727bdf |
+}
|
|
|
727bdf |
+
|
|
|
727bdf |
+
|
|
|
727bdf |
+extern size_t ppc_aes_gcm_encrypt(const unsigned char *in, unsigned char *out, size_t len,
|
|
|
727bdf |
+ const void *key, unsigned char ivec[16], u64 *Xi);
|
|
|
727bdf |
+extern size_t ppc_aes_gcm_decrypt(const unsigned char *in, unsigned char *out, size_t len,
|
|
|
727bdf |
+ const void *key, unsigned char ivec[16], u64 *Xi);
|
|
|
727bdf |
+
|
|
|
727bdf |
+static inline u32 UTO32(unsigned char *buf)
|
|
|
727bdf |
+{
|
|
|
727bdf |
+ return ((u32) buf[0] << 24) | ((u32) buf[1] << 16) | ((u32) buf[2] << 8) | ((u32) buf[3]);
|
|
|
727bdf |
+}
|
|
|
727bdf |
+
|
|
|
727bdf |
+static inline u32 add32TOU(unsigned char buf[4], u32 n)
|
|
|
727bdf |
+{
|
|
|
727bdf |
+ u32 r;
|
|
|
727bdf |
+
|
|
|
727bdf |
+ r = UTO32(buf);
|
|
|
727bdf |
+ r += n;
|
|
|
727bdf |
+ buf[0] = (unsigned char) (r >> 24) & 0xFF;
|
|
|
727bdf |
+ buf[1] = (unsigned char) (r >> 16) & 0xFF;
|
|
|
727bdf |
+ buf[2] = (unsigned char) (r >> 8) & 0xFF;
|
|
|
727bdf |
+ buf[3] = (unsigned char) r & 0xFF;
|
|
|
727bdf |
+ return r;
|
|
|
727bdf |
+}
|
|
|
727bdf |
+
|
|
|
727bdf |
+static size_t aes_p10_gcm_crypt(const unsigned char *in, unsigned char *out, size_t len,
|
|
|
727bdf |
+ const void *key, unsigned char ivec[16], u64 *Xi, int encrypt)
|
|
|
727bdf |
+{
|
|
|
727bdf |
+ int s = 0;
|
|
|
727bdf |
+ int ndone = 0;
|
|
|
727bdf |
+ int ctr_reset = 0;
|
|
|
727bdf |
+ u64 blocks_unused;
|
|
|
727bdf |
+ u64 nb = len / 16;
|
|
|
727bdf |
+ u64 next_ctr = 0;
|
|
|
727bdf |
+ unsigned char ctr_saved[12];
|
|
|
727bdf |
+
|
|
|
727bdf |
+ memcpy(ctr_saved, ivec, 12);
|
|
|
727bdf |
+
|
|
|
727bdf |
+ while (nb) {
|
|
|
727bdf |
+ blocks_unused = (u64) 0xffffffffU + 1 - (u64) UTO32 (ivec + 12);
|
|
|
727bdf |
+ if (nb > blocks_unused) {
|
|
|
727bdf |
+ len = blocks_unused * 16;
|
|
|
727bdf |
+ nb -= blocks_unused;
|
|
|
727bdf |
+ next_ctr = blocks_unused;
|
|
|
727bdf |
+ ctr_reset = 1;
|
|
|
727bdf |
+ } else {
|
|
|
727bdf |
+ len = nb * 16;
|
|
|
727bdf |
+ next_ctr = nb;
|
|
|
727bdf |
+ nb = 0;
|
|
|
727bdf |
+ }
|
|
|
727bdf |
+
|
|
|
727bdf |
+ s = encrypt ? ppc_aes_gcm_encrypt(in, out, len, key, ivec, Xi)
|
|
|
727bdf |
+ : ppc_aes_gcm_decrypt(in, out, len, key, ivec, Xi);
|
|
|
727bdf |
+
|
|
|
727bdf |
+ /* add counter to ivec */
|
|
|
727bdf |
+ add32TOU(ivec + 12, (u32) next_ctr);
|
|
|
727bdf |
+ if (ctr_reset) {
|
|
|
727bdf |
+ ctr_reset = 0;
|
|
|
727bdf |
+ in += len;
|
|
|
727bdf |
+ out += len;
|
|
|
727bdf |
+ }
|
|
|
727bdf |
+ memcpy(ivec, ctr_saved, 12);
|
|
|
727bdf |
+ ndone += s;
|
|
|
727bdf |
+ }
|
|
|
727bdf |
+
|
|
|
727bdf |
+ return ndone;
|
|
|
727bdf |
+}
|
|
|
727bdf |
+
|
|
|
727bdf |
+size_t ppc_aes_gcm_encrypt_wrap(const unsigned char *in, unsigned char *out, size_t len,
|
|
|
727bdf |
+ const void *key, unsigned char ivec[16], u64 *Xi)
|
|
|
727bdf |
+{
|
|
|
727bdf |
+ return aes_p10_gcm_crypt(in, out, len, key, ivec, Xi, 1);
|
|
|
727bdf |
+}
|
|
|
727bdf |
+
|
|
|
727bdf |
+size_t ppc_aes_gcm_decrypt_wrap(const unsigned char *in, unsigned char *out, size_t len,
|
|
|
727bdf |
+ const void *key, unsigned char ivec[16], u64 *Xi)
|
|
|
727bdf |
+{
|
|
|
727bdf |
+ return aes_p10_gcm_crypt(in, out, len, key, ivec, Xi, 0);
|
|
|
727bdf |
+}
|
|
|
727bdf |
+
|
|
|
727bdf |
+
|
|
|
727bdf |
+static const PROV_GCM_HW aes_ppc_gcm = {
|
|
|
727bdf |
+ aes_ppc_gcm_initkey,
|
|
|
727bdf |
+ ossl_gcm_setiv,
|
|
|
727bdf |
+ ossl_gcm_aad_update,
|
|
|
727bdf |
+ generic_aes_gcm_cipher_update,
|
|
|
727bdf |
+ ossl_gcm_cipher_final,
|
|
|
727bdf |
+ ossl_gcm_one_shot
|
|
|
727bdf |
+};
|
|
|
727bdf |
+
|
|
|
727bdf |
+const PROV_GCM_HW *ossl_prov_aes_hw_gcm(size_t keybits)
|
|
|
727bdf |
+{
|
|
|
727bdf |
+ return PPC_AES_GCM_CAPABLE ? &aes_ppc_gcm : &aes_gcm;
|
|
|
727bdf |
+}
|
|
|
727bdf |
+
|