2014-06-20 20:00:00 +01:00
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#!/usr/bin/env perl
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######################################################################
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## Constant-time SSSE3 AES core implementation.
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## version 0.1
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##
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## By Mike Hamburg (Stanford University), 2009
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## Public domain.
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##
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## For details see http://shiftleft.org/papers/vector_aes/ and
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## http://crypto.stanford.edu/vpaes/.
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######################################################################
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# September 2011.
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#
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# Interface to OpenSSL as "almost" drop-in replacement for
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# aes-x86_64.pl. "Almost" refers to the fact that AES_cbc_encrypt
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# doesn't handle partial vectors (doesn't have to if called from
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# EVP only). "Drop-in" implies that this module doesn't share key
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# schedule structure with the original nor does it make assumption
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# about its alignment...
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#
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# Performance summary. aes-x86_64.pl column lists large-block CBC
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# encrypt/decrypt/with-hyper-threading-off(*) results in cycles per
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# byte processed with 128-bit key, and vpaes-x86_64.pl column -
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# [also large-block CBC] encrypt/decrypt.
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#
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# aes-x86_64.pl vpaes-x86_64.pl
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#
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# Core 2(**) 29.6/41.1/14.3 21.9/25.2(***)
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# Nehalem 29.6/40.3/14.6 10.0/11.8
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# Atom 57.3/74.2/32.1 60.9/77.2(***)
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2014-11-04 02:52:27 +00:00
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# Silvermont 52.7/64.0/19.5 48.8/60.8(***)
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2017-02-09 20:34:59 +00:00
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# Goldmont 38.9/49.0/17.8 10.6/12.6
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2014-06-20 20:00:00 +01:00
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#
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# (*) "Hyper-threading" in the context refers rather to cache shared
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# among multiple cores, than to specifically Intel HTT. As vast
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# majority of contemporary cores share cache, slower code path
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# is common place. In other words "with-hyper-threading-off"
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# results are presented mostly for reference purposes.
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#
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# (**) "Core 2" refers to initial 65nm design, a.k.a. Conroe.
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#
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# (***) Less impressive improvement on Core 2 and Atom is due to slow
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# pshufb, yet it's respectable +36%/62% improvement on Core 2
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# (as implied, over "hyper-threading-safe" code path).
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#
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# <appro@openssl.org>
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$flavour = shift;
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$output = shift;
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if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
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$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
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2017-04-13 19:00:24 +01:00
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( $xlate="${dir}../../../perlasm/x86_64-xlate.pl" and -f $xlate) or
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2014-06-20 20:00:00 +01:00
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die "can't locate x86_64-xlate.pl";
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2016-06-26 18:18:50 +01:00
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open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"";
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2014-06-20 20:00:00 +01:00
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*STDOUT=*OUT;
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$PREFIX="vpaes";
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$code.=<<___;
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.text
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##
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## _aes_encrypt_core
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##
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## AES-encrypt %xmm0.
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##
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## Inputs:
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## %xmm0 = input
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## %xmm9-%xmm15 as in _vpaes_preheat
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## (%rdx) = scheduled keys
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##
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## Output in %xmm0
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## Clobbers %xmm1-%xmm5, %r9, %r10, %r11, %rax
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## Preserves %xmm6 - %xmm8 so you get some local vectors
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##
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##
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.type _vpaes_encrypt_core,\@abi-omnipotent
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.align 16
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_vpaes_encrypt_core:
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mov %rdx, %r9
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mov \$16, %r11
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mov 240(%rdx),%eax
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movdqa %xmm9, %xmm1
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movdqa .Lk_ipt(%rip), %xmm2 # iptlo
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pandn %xmm0, %xmm1
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movdqu (%r9), %xmm5 # round0 key
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psrld \$4, %xmm1
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pand %xmm9, %xmm0
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pshufb %xmm0, %xmm2
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movdqa .Lk_ipt+16(%rip), %xmm0 # ipthi
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pshufb %xmm1, %xmm0
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pxor %xmm5, %xmm2
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add \$16, %r9
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pxor %xmm2, %xmm0
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lea .Lk_mc_backward(%rip),%r10
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jmp .Lenc_entry
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.align 16
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.Lenc_loop:
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# middle of middle round
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movdqa %xmm13, %xmm4 # 4 : sb1u
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movdqa %xmm12, %xmm0 # 0 : sb1t
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pshufb %xmm2, %xmm4 # 4 = sb1u
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pshufb %xmm3, %xmm0 # 0 = sb1t
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pxor %xmm5, %xmm4 # 4 = sb1u + k
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movdqa %xmm15, %xmm5 # 4 : sb2u
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pxor %xmm4, %xmm0 # 0 = A
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movdqa -0x40(%r11,%r10), %xmm1 # .Lk_mc_forward[]
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pshufb %xmm2, %xmm5 # 4 = sb2u
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movdqa (%r11,%r10), %xmm4 # .Lk_mc_backward[]
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movdqa %xmm14, %xmm2 # 2 : sb2t
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pshufb %xmm3, %xmm2 # 2 = sb2t
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movdqa %xmm0, %xmm3 # 3 = A
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pxor %xmm5, %xmm2 # 2 = 2A
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pshufb %xmm1, %xmm0 # 0 = B
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add \$16, %r9 # next key
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pxor %xmm2, %xmm0 # 0 = 2A+B
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pshufb %xmm4, %xmm3 # 3 = D
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add \$16, %r11 # next mc
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pxor %xmm0, %xmm3 # 3 = 2A+B+D
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pshufb %xmm1, %xmm0 # 0 = 2B+C
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and \$0x30, %r11 # ... mod 4
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sub \$1,%rax # nr--
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pxor %xmm3, %xmm0 # 0 = 2A+3B+C+D
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.Lenc_entry:
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# top of round
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movdqa %xmm9, %xmm1 # 1 : i
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movdqa %xmm11, %xmm5 # 2 : a/k
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pandn %xmm0, %xmm1 # 1 = i<<4
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psrld \$4, %xmm1 # 1 = i
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pand %xmm9, %xmm0 # 0 = k
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pshufb %xmm0, %xmm5 # 2 = a/k
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movdqa %xmm10, %xmm3 # 3 : 1/i
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pxor %xmm1, %xmm0 # 0 = j
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pshufb %xmm1, %xmm3 # 3 = 1/i
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movdqa %xmm10, %xmm4 # 4 : 1/j
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pxor %xmm5, %xmm3 # 3 = iak = 1/i + a/k
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pshufb %xmm0, %xmm4 # 4 = 1/j
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movdqa %xmm10, %xmm2 # 2 : 1/iak
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pxor %xmm5, %xmm4 # 4 = jak = 1/j + a/k
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pshufb %xmm3, %xmm2 # 2 = 1/iak
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movdqa %xmm10, %xmm3 # 3 : 1/jak
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pxor %xmm0, %xmm2 # 2 = io
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pshufb %xmm4, %xmm3 # 3 = 1/jak
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movdqu (%r9), %xmm5
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pxor %xmm1, %xmm3 # 3 = jo
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jnz .Lenc_loop
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# middle of last round
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movdqa -0x60(%r10), %xmm4 # 3 : sbou .Lk_sbo
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movdqa -0x50(%r10), %xmm0 # 0 : sbot .Lk_sbo+16
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pshufb %xmm2, %xmm4 # 4 = sbou
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pxor %xmm5, %xmm4 # 4 = sb1u + k
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pshufb %xmm3, %xmm0 # 0 = sb1t
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movdqa 0x40(%r11,%r10), %xmm1 # .Lk_sr[]
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pxor %xmm4, %xmm0 # 0 = A
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pshufb %xmm1, %xmm0
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ret
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.size _vpaes_encrypt_core,.-_vpaes_encrypt_core
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2017-02-09 20:21:08 +00:00
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2014-06-20 20:00:00 +01:00
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##
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## Decryption core
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##
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## Same API as encryption core.
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##
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.type _vpaes_decrypt_core,\@abi-omnipotent
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.align 16
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_vpaes_decrypt_core:
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mov %rdx, %r9 # load key
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mov 240(%rdx),%eax
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movdqa %xmm9, %xmm1
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movdqa .Lk_dipt(%rip), %xmm2 # iptlo
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pandn %xmm0, %xmm1
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mov %rax, %r11
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psrld \$4, %xmm1
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movdqu (%r9), %xmm5 # round0 key
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shl \$4, %r11
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pand %xmm9, %xmm0
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pshufb %xmm0, %xmm2
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movdqa .Lk_dipt+16(%rip), %xmm0 # ipthi
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xor \$0x30, %r11
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lea .Lk_dsbd(%rip),%r10
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pshufb %xmm1, %xmm0
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and \$0x30, %r11
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pxor %xmm5, %xmm2
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movdqa .Lk_mc_forward+48(%rip), %xmm5
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pxor %xmm2, %xmm0
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add \$16, %r9
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add %r10, %r11
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jmp .Ldec_entry
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.align 16
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.Ldec_loop:
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##
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## Inverse mix columns
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##
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movdqa -0x20(%r10),%xmm4 # 4 : sb9u
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movdqa -0x10(%r10),%xmm1 # 0 : sb9t
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pshufb %xmm2, %xmm4 # 4 = sb9u
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pshufb %xmm3, %xmm1 # 0 = sb9t
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pxor %xmm4, %xmm0
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movdqa 0x00(%r10),%xmm4 # 4 : sbdu
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pxor %xmm1, %xmm0 # 0 = ch
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movdqa 0x10(%r10),%xmm1 # 0 : sbdt
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pshufb %xmm2, %xmm4 # 4 = sbdu
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pshufb %xmm5, %xmm0 # MC ch
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pshufb %xmm3, %xmm1 # 0 = sbdt
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pxor %xmm4, %xmm0 # 4 = ch
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movdqa 0x20(%r10),%xmm4 # 4 : sbbu
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pxor %xmm1, %xmm0 # 0 = ch
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movdqa 0x30(%r10),%xmm1 # 0 : sbbt
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pshufb %xmm2, %xmm4 # 4 = sbbu
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pshufb %xmm5, %xmm0 # MC ch
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pshufb %xmm3, %xmm1 # 0 = sbbt
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pxor %xmm4, %xmm0 # 4 = ch
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movdqa 0x40(%r10),%xmm4 # 4 : sbeu
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pxor %xmm1, %xmm0 # 0 = ch
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movdqa 0x50(%r10),%xmm1 # 0 : sbet
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pshufb %xmm2, %xmm4 # 4 = sbeu
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pshufb %xmm5, %xmm0 # MC ch
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pshufb %xmm3, %xmm1 # 0 = sbet
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pxor %xmm4, %xmm0 # 4 = ch
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add \$16, %r9 # next round key
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palignr \$12, %xmm5, %xmm5
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pxor %xmm1, %xmm0 # 0 = ch
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sub \$1,%rax # nr--
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.Ldec_entry:
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# top of round
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movdqa %xmm9, %xmm1 # 1 : i
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pandn %xmm0, %xmm1 # 1 = i<<4
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movdqa %xmm11, %xmm2 # 2 : a/k
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psrld \$4, %xmm1 # 1 = i
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pand %xmm9, %xmm0 # 0 = k
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pshufb %xmm0, %xmm2 # 2 = a/k
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movdqa %xmm10, %xmm3 # 3 : 1/i
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pxor %xmm1, %xmm0 # 0 = j
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pshufb %xmm1, %xmm3 # 3 = 1/i
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movdqa %xmm10, %xmm4 # 4 : 1/j
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pxor %xmm2, %xmm3 # 3 = iak = 1/i + a/k
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pshufb %xmm0, %xmm4 # 4 = 1/j
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pxor %xmm2, %xmm4 # 4 = jak = 1/j + a/k
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movdqa %xmm10, %xmm2 # 2 : 1/iak
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pshufb %xmm3, %xmm2 # 2 = 1/iak
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movdqa %xmm10, %xmm3 # 3 : 1/jak
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pxor %xmm0, %xmm2 # 2 = io
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pshufb %xmm4, %xmm3 # 3 = 1/jak
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movdqu (%r9), %xmm0
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pxor %xmm1, %xmm3 # 3 = jo
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jnz .Ldec_loop
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# middle of last round
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movdqa 0x60(%r10), %xmm4 # 3 : sbou
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pshufb %xmm2, %xmm4 # 4 = sbou
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pxor %xmm0, %xmm4 # 4 = sb1u + k
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movdqa 0x70(%r10), %xmm0 # 0 : sbot
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movdqa -0x160(%r11), %xmm2 # .Lk_sr-.Lk_dsbd=-0x160
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pshufb %xmm3, %xmm0 # 0 = sb1t
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pxor %xmm4, %xmm0 # 0 = A
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pshufb %xmm2, %xmm0
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ret
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.size _vpaes_decrypt_core,.-_vpaes_decrypt_core
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########################################################
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## ##
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## AES key schedule ##
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## ##
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########################################################
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.type _vpaes_schedule_core,\@abi-omnipotent
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.align 16
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_vpaes_schedule_core:
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# rdi = key
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# rsi = size in bits
|
|
|
|
|
# rdx = buffer
|
|
|
|
|
# rcx = direction. 0=encrypt, 1=decrypt
|
|
|
|
|
|
|
|
|
|
call _vpaes_preheat # load the tables
|
|
|
|
|
movdqa .Lk_rcon(%rip), %xmm8 # load rcon
|
|
|
|
|
movdqu (%rdi), %xmm0 # load key (unaligned)
|
|
|
|
|
|
|
|
|
|
# input transform
|
|
|
|
|
movdqa %xmm0, %xmm3
|
|
|
|
|
lea .Lk_ipt(%rip), %r11
|
|
|
|
|
call _vpaes_schedule_transform
|
|
|
|
|
movdqa %xmm0, %xmm7
|
|
|
|
|
|
|
|
|
|
lea .Lk_sr(%rip),%r10
|
|
|
|
|
test %rcx, %rcx
|
|
|
|
|
jnz .Lschedule_am_decrypting
|
|
|
|
|
|
|
|
|
|
# encrypting, output zeroth round key after transform
|
|
|
|
|
movdqu %xmm0, (%rdx)
|
|
|
|
|
jmp .Lschedule_go
|
|
|
|
|
|
|
|
|
|
.Lschedule_am_decrypting:
|
|
|
|
|
# decrypting, output zeroth round key after shiftrows
|
|
|
|
|
movdqa (%r8,%r10),%xmm1
|
|
|
|
|
pshufb %xmm1, %xmm3
|
|
|
|
|
movdqu %xmm3, (%rdx)
|
|
|
|
|
xor \$0x30, %r8
|
|
|
|
|
|
|
|
|
|
.Lschedule_go:
|
|
|
|
|
cmp \$192, %esi
|
|
|
|
|
ja .Lschedule_256
|
|
|
|
|
je .Lschedule_192
|
|
|
|
|
# 128: fall though
|
|
|
|
|
|
|
|
|
|
##
|
|
|
|
|
## .schedule_128
|
|
|
|
|
##
|
|
|
|
|
## 128-bit specific part of key schedule.
|
|
|
|
|
##
|
|
|
|
|
## This schedule is really simple, because all its parts
|
|
|
|
|
## are accomplished by the subroutines.
|
|
|
|
|
##
|
|
|
|
|
.Lschedule_128:
|
|
|
|
|
mov \$10, %esi
|
2017-02-09 20:21:08 +00:00
|
|
|
|
2014-06-20 20:00:00 +01:00
|
|
|
.Loop_schedule_128:
|
|
|
|
|
call _vpaes_schedule_round
|
|
|
|
|
dec %rsi
|
|
|
|
|
jz .Lschedule_mangle_last
|
|
|
|
|
call _vpaes_schedule_mangle # write output
|
|
|
|
|
jmp .Loop_schedule_128
|
|
|
|
|
|
|
|
|
|
##
|
|
|
|
|
## .aes_schedule_192
|
|
|
|
|
##
|
|
|
|
|
## 192-bit specific part of key schedule.
|
|
|
|
|
##
|
|
|
|
|
## The main body of this schedule is the same as the 128-bit
|
|
|
|
|
## schedule, but with more smearing. The long, high side is
|
|
|
|
|
## stored in %xmm7 as before, and the short, low side is in
|
|
|
|
|
## the high bits of %xmm6.
|
|
|
|
|
##
|
|
|
|
|
## This schedule is somewhat nastier, however, because each
|
|
|
|
|
## round produces 192 bits of key material, or 1.5 round keys.
|
|
|
|
|
## Therefore, on each cycle we do 2 rounds and produce 3 round
|
|
|
|
|
## keys.
|
|
|
|
|
##
|
|
|
|
|
.align 16
|
|
|
|
|
.Lschedule_192:
|
|
|
|
|
movdqu 8(%rdi),%xmm0 # load key part 2 (very unaligned)
|
|
|
|
|
call _vpaes_schedule_transform # input transform
|
|
|
|
|
movdqa %xmm0, %xmm6 # save short part
|
|
|
|
|
pxor %xmm4, %xmm4 # clear 4
|
|
|
|
|
movhlps %xmm4, %xmm6 # clobber low side with zeros
|
|
|
|
|
mov \$4, %esi
|
|
|
|
|
|
|
|
|
|
.Loop_schedule_192:
|
|
|
|
|
call _vpaes_schedule_round
|
2017-02-09 20:21:08 +00:00
|
|
|
palignr \$8,%xmm6,%xmm0
|
2014-06-20 20:00:00 +01:00
|
|
|
call _vpaes_schedule_mangle # save key n
|
|
|
|
|
call _vpaes_schedule_192_smear
|
|
|
|
|
call _vpaes_schedule_mangle # save key n+1
|
|
|
|
|
call _vpaes_schedule_round
|
|
|
|
|
dec %rsi
|
|
|
|
|
jz .Lschedule_mangle_last
|
|
|
|
|
call _vpaes_schedule_mangle # save key n+2
|
|
|
|
|
call _vpaes_schedule_192_smear
|
|
|
|
|
jmp .Loop_schedule_192
|
|
|
|
|
|
|
|
|
|
##
|
|
|
|
|
## .aes_schedule_256
|
|
|
|
|
##
|
|
|
|
|
## 256-bit specific part of key schedule.
|
|
|
|
|
##
|
|
|
|
|
## The structure here is very similar to the 128-bit
|
|
|
|
|
## schedule, but with an additional "low side" in
|
|
|
|
|
## %xmm6. The low side's rounds are the same as the
|
|
|
|
|
## high side's, except no rcon and no rotation.
|
|
|
|
|
##
|
|
|
|
|
.align 16
|
|
|
|
|
.Lschedule_256:
|
|
|
|
|
movdqu 16(%rdi),%xmm0 # load key part 2 (unaligned)
|
|
|
|
|
call _vpaes_schedule_transform # input transform
|
|
|
|
|
mov \$7, %esi
|
2017-02-09 20:21:08 +00:00
|
|
|
|
2014-06-20 20:00:00 +01:00
|
|
|
.Loop_schedule_256:
|
|
|
|
|
call _vpaes_schedule_mangle # output low result
|
|
|
|
|
movdqa %xmm0, %xmm6 # save cur_lo in xmm6
|
|
|
|
|
|
|
|
|
|
# high round
|
|
|
|
|
call _vpaes_schedule_round
|
|
|
|
|
dec %rsi
|
|
|
|
|
jz .Lschedule_mangle_last
|
2017-02-09 20:21:08 +00:00
|
|
|
call _vpaes_schedule_mangle
|
2014-06-20 20:00:00 +01:00
|
|
|
|
|
|
|
|
# low round. swap xmm7 and xmm6
|
|
|
|
|
pshufd \$0xFF, %xmm0, %xmm0
|
|
|
|
|
movdqa %xmm7, %xmm5
|
|
|
|
|
movdqa %xmm6, %xmm7
|
|
|
|
|
call _vpaes_schedule_low_round
|
|
|
|
|
movdqa %xmm5, %xmm7
|
2017-02-09 20:21:08 +00:00
|
|
|
|
2014-06-20 20:00:00 +01:00
|
|
|
jmp .Loop_schedule_256
|
|
|
|
|
|
2017-02-09 20:21:08 +00:00
|
|
|
|
2014-06-20 20:00:00 +01:00
|
|
|
##
|
|
|
|
|
## .aes_schedule_mangle_last
|
|
|
|
|
##
|
|
|
|
|
## Mangler for last round of key schedule
|
|
|
|
|
## Mangles %xmm0
|
|
|
|
|
## when encrypting, outputs out(%xmm0) ^ 63
|
|
|
|
|
## when decrypting, outputs unskew(%xmm0)
|
|
|
|
|
##
|
|
|
|
|
## Always called right before return... jumps to cleanup and exits
|
|
|
|
|
##
|
|
|
|
|
.align 16
|
|
|
|
|
.Lschedule_mangle_last:
|
|
|
|
|
# schedule last round key from xmm0
|
|
|
|
|
lea .Lk_deskew(%rip),%r11 # prepare to deskew
|
|
|
|
|
test %rcx, %rcx
|
|
|
|
|
jnz .Lschedule_mangle_last_dec
|
|
|
|
|
|
|
|
|
|
# encrypting
|
|
|
|
|
movdqa (%r8,%r10),%xmm1
|
|
|
|
|
pshufb %xmm1, %xmm0 # output permute
|
|
|
|
|
lea .Lk_opt(%rip), %r11 # prepare to output transform
|
|
|
|
|
add \$32, %rdx
|
|
|
|
|
|
|
|
|
|
.Lschedule_mangle_last_dec:
|
|
|
|
|
add \$-16, %rdx
|
|
|
|
|
pxor .Lk_s63(%rip), %xmm0
|
|
|
|
|
call _vpaes_schedule_transform # output transform
|
|
|
|
|
movdqu %xmm0, (%rdx) # save last key
|
|
|
|
|
|
|
|
|
|
# cleanup
|
|
|
|
|
pxor %xmm0, %xmm0
|
|
|
|
|
pxor %xmm1, %xmm1
|
|
|
|
|
pxor %xmm2, %xmm2
|
|
|
|
|
pxor %xmm3, %xmm3
|
|
|
|
|
pxor %xmm4, %xmm4
|
|
|
|
|
pxor %xmm5, %xmm5
|
|
|
|
|
pxor %xmm6, %xmm6
|
|
|
|
|
pxor %xmm7, %xmm7
|
|
|
|
|
ret
|
|
|
|
|
.size _vpaes_schedule_core,.-_vpaes_schedule_core
|
|
|
|
|
|
|
|
|
|
##
|
|
|
|
|
## .aes_schedule_192_smear
|
|
|
|
|
##
|
|
|
|
|
## Smear the short, low side in the 192-bit key schedule.
|
|
|
|
|
##
|
|
|
|
|
## Inputs:
|
|
|
|
|
## %xmm7: high side, b a x y
|
|
|
|
|
## %xmm6: low side, d c 0 0
|
|
|
|
|
## %xmm13: 0
|
|
|
|
|
##
|
|
|
|
|
## Outputs:
|
|
|
|
|
## %xmm6: b+c+d b+c 0 0
|
|
|
|
|
## %xmm0: b+c+d b+c b a
|
|
|
|
|
##
|
|
|
|
|
.type _vpaes_schedule_192_smear,\@abi-omnipotent
|
|
|
|
|
.align 16
|
|
|
|
|
_vpaes_schedule_192_smear:
|
|
|
|
|
pshufd \$0x80, %xmm6, %xmm1 # d c 0 0 -> c 0 0 0
|
|
|
|
|
pshufd \$0xFE, %xmm7, %xmm0 # b a _ _ -> b b b a
|
|
|
|
|
pxor %xmm1, %xmm6 # -> c+d c 0 0
|
|
|
|
|
pxor %xmm1, %xmm1
|
|
|
|
|
pxor %xmm0, %xmm6 # -> b+c+d b+c b a
|
|
|
|
|
movdqa %xmm6, %xmm0
|
|
|
|
|
movhlps %xmm1, %xmm6 # clobber low side with zeros
|
|
|
|
|
ret
|
|
|
|
|
.size _vpaes_schedule_192_smear,.-_vpaes_schedule_192_smear
|
|
|
|
|
|
|
|
|
|
##
|
|
|
|
|
## .aes_schedule_round
|
|
|
|
|
##
|
|
|
|
|
## Runs one main round of the key schedule on %xmm0, %xmm7
|
|
|
|
|
##
|
|
|
|
|
## Specifically, runs subbytes on the high dword of %xmm0
|
|
|
|
|
## then rotates it by one byte and xors into the low dword of
|
|
|
|
|
## %xmm7.
|
|
|
|
|
##
|
|
|
|
|
## Adds rcon from low byte of %xmm8, then rotates %xmm8 for
|
|
|
|
|
## next rcon.
|
|
|
|
|
##
|
|
|
|
|
## Smears the dwords of %xmm7 by xoring the low into the
|
|
|
|
|
## second low, result into third, result into highest.
|
|
|
|
|
##
|
|
|
|
|
## Returns results in %xmm7 = %xmm0.
|
|
|
|
|
## Clobbers %xmm1-%xmm4, %r11.
|
|
|
|
|
##
|
|
|
|
|
.type _vpaes_schedule_round,\@abi-omnipotent
|
|
|
|
|
.align 16
|
|
|
|
|
_vpaes_schedule_round:
|
|
|
|
|
# extract rcon from xmm8
|
|
|
|
|
pxor %xmm1, %xmm1
|
|
|
|
|
palignr \$15, %xmm8, %xmm1
|
|
|
|
|
palignr \$15, %xmm8, %xmm8
|
|
|
|
|
pxor %xmm1, %xmm7
|
|
|
|
|
|
|
|
|
|
# rotate
|
|
|
|
|
pshufd \$0xFF, %xmm0, %xmm0
|
|
|
|
|
palignr \$1, %xmm0, %xmm0
|
2017-02-09 20:21:08 +00:00
|
|
|
|
2014-06-20 20:00:00 +01:00
|
|
|
# fall through...
|
2017-02-09 20:21:08 +00:00
|
|
|
|
2014-06-20 20:00:00 +01:00
|
|
|
# low round: same as high round, but no rotation and no rcon.
|
|
|
|
|
_vpaes_schedule_low_round:
|
|
|
|
|
# smear xmm7
|
|
|
|
|
movdqa %xmm7, %xmm1
|
|
|
|
|
pslldq \$4, %xmm7
|
|
|
|
|
pxor %xmm1, %xmm7
|
|
|
|
|
movdqa %xmm7, %xmm1
|
|
|
|
|
pslldq \$8, %xmm7
|
|
|
|
|
pxor %xmm1, %xmm7
|
|
|
|
|
pxor .Lk_s63(%rip), %xmm7
|
|
|
|
|
|
|
|
|
|
# subbytes
|
|
|
|
|
movdqa %xmm9, %xmm1
|
|
|
|
|
pandn %xmm0, %xmm1
|
|
|
|
|
psrld \$4, %xmm1 # 1 = i
|
|
|
|
|
pand %xmm9, %xmm0 # 0 = k
|
|
|
|
|
movdqa %xmm11, %xmm2 # 2 : a/k
|
|
|
|
|
pshufb %xmm0, %xmm2 # 2 = a/k
|
|
|
|
|
pxor %xmm1, %xmm0 # 0 = j
|
|
|
|
|
movdqa %xmm10, %xmm3 # 3 : 1/i
|
|
|
|
|
pshufb %xmm1, %xmm3 # 3 = 1/i
|
|
|
|
|
pxor %xmm2, %xmm3 # 3 = iak = 1/i + a/k
|
|
|
|
|
movdqa %xmm10, %xmm4 # 4 : 1/j
|
|
|
|
|
pshufb %xmm0, %xmm4 # 4 = 1/j
|
|
|
|
|
pxor %xmm2, %xmm4 # 4 = jak = 1/j + a/k
|
|
|
|
|
movdqa %xmm10, %xmm2 # 2 : 1/iak
|
|
|
|
|
pshufb %xmm3, %xmm2 # 2 = 1/iak
|
|
|
|
|
pxor %xmm0, %xmm2 # 2 = io
|
|
|
|
|
movdqa %xmm10, %xmm3 # 3 : 1/jak
|
|
|
|
|
pshufb %xmm4, %xmm3 # 3 = 1/jak
|
|
|
|
|
pxor %xmm1, %xmm3 # 3 = jo
|
|
|
|
|
movdqa %xmm13, %xmm4 # 4 : sbou
|
|
|
|
|
pshufb %xmm2, %xmm4 # 4 = sbou
|
|
|
|
|
movdqa %xmm12, %xmm0 # 0 : sbot
|
|
|
|
|
pshufb %xmm3, %xmm0 # 0 = sb1t
|
|
|
|
|
pxor %xmm4, %xmm0 # 0 = sbox output
|
|
|
|
|
|
|
|
|
|
# add in smeared stuff
|
2017-02-09 20:21:08 +00:00
|
|
|
pxor %xmm7, %xmm0
|
2014-06-20 20:00:00 +01:00
|
|
|
movdqa %xmm0, %xmm7
|
|
|
|
|
ret
|
|
|
|
|
.size _vpaes_schedule_round,.-_vpaes_schedule_round
|
|
|
|
|
|
|
|
|
|
##
|
|
|
|
|
## .aes_schedule_transform
|
|
|
|
|
##
|
|
|
|
|
## Linear-transform %xmm0 according to tables at (%r11)
|
|
|
|
|
##
|
|
|
|
|
## Requires that %xmm9 = 0x0F0F... as in preheat
|
|
|
|
|
## Output in %xmm0
|
|
|
|
|
## Clobbers %xmm1, %xmm2
|
|
|
|
|
##
|
|
|
|
|
.type _vpaes_schedule_transform,\@abi-omnipotent
|
|
|
|
|
.align 16
|
|
|
|
|
_vpaes_schedule_transform:
|
|
|
|
|
movdqa %xmm9, %xmm1
|
|
|
|
|
pandn %xmm0, %xmm1
|
|
|
|
|
psrld \$4, %xmm1
|
|
|
|
|
pand %xmm9, %xmm0
|
|
|
|
|
movdqa (%r11), %xmm2 # lo
|
|
|
|
|
pshufb %xmm0, %xmm2
|
|
|
|
|
movdqa 16(%r11), %xmm0 # hi
|
|
|
|
|
pshufb %xmm1, %xmm0
|
|
|
|
|
pxor %xmm2, %xmm0
|
|
|
|
|
ret
|
|
|
|
|
.size _vpaes_schedule_transform,.-_vpaes_schedule_transform
|
|
|
|
|
|
|
|
|
|
##
|
|
|
|
|
## .aes_schedule_mangle
|
|
|
|
|
##
|
|
|
|
|
## Mangle xmm0 from (basis-transformed) standard version
|
|
|
|
|
## to our version.
|
|
|
|
|
##
|
|
|
|
|
## On encrypt,
|
|
|
|
|
## xor with 0x63
|
|
|
|
|
## multiply by circulant 0,1,1,1
|
|
|
|
|
## apply shiftrows transform
|
|
|
|
|
##
|
|
|
|
|
## On decrypt,
|
|
|
|
|
## xor with 0x63
|
|
|
|
|
## multiply by "inverse mixcolumns" circulant E,B,D,9
|
|
|
|
|
## deskew
|
|
|
|
|
## apply shiftrows transform
|
|
|
|
|
##
|
|
|
|
|
##
|
|
|
|
|
## Writes out to (%rdx), and increments or decrements it
|
|
|
|
|
## Keeps track of round number mod 4 in %r8
|
|
|
|
|
## Preserves xmm0
|
|
|
|
|
## Clobbers xmm1-xmm5
|
|
|
|
|
##
|
|
|
|
|
.type _vpaes_schedule_mangle,\@abi-omnipotent
|
|
|
|
|
.align 16
|
|
|
|
|
_vpaes_schedule_mangle:
|
|
|
|
|
movdqa %xmm0, %xmm4 # save xmm0 for later
|
|
|
|
|
movdqa .Lk_mc_forward(%rip),%xmm5
|
|
|
|
|
test %rcx, %rcx
|
|
|
|
|
jnz .Lschedule_mangle_dec
|
|
|
|
|
|
|
|
|
|
# encrypting
|
|
|
|
|
add \$16, %rdx
|
|
|
|
|
pxor .Lk_s63(%rip),%xmm4
|
|
|
|
|
pshufb %xmm5, %xmm4
|
|
|
|
|
movdqa %xmm4, %xmm3
|
|
|
|
|
pshufb %xmm5, %xmm4
|
|
|
|
|
pxor %xmm4, %xmm3
|
|
|
|
|
pshufb %xmm5, %xmm4
|
|
|
|
|
pxor %xmm4, %xmm3
|
|
|
|
|
|
|
|
|
|
jmp .Lschedule_mangle_both
|
|
|
|
|
.align 16
|
|
|
|
|
.Lschedule_mangle_dec:
|
|
|
|
|
# inverse mix columns
|
|
|
|
|
lea .Lk_dksd(%rip),%r11
|
|
|
|
|
movdqa %xmm9, %xmm1
|
|
|
|
|
pandn %xmm4, %xmm1
|
|
|
|
|
psrld \$4, %xmm1 # 1 = hi
|
|
|
|
|
pand %xmm9, %xmm4 # 4 = lo
|
|
|
|
|
|
|
|
|
|
movdqa 0x00(%r11), %xmm2
|
|
|
|
|
pshufb %xmm4, %xmm2
|
|
|
|
|
movdqa 0x10(%r11), %xmm3
|
|
|
|
|
pshufb %xmm1, %xmm3
|
|
|
|
|
pxor %xmm2, %xmm3
|
|
|
|
|
pshufb %xmm5, %xmm3
|
|
|
|
|
|
|
|
|
|
movdqa 0x20(%r11), %xmm2
|
|
|
|
|
pshufb %xmm4, %xmm2
|
|
|
|
|
pxor %xmm3, %xmm2
|
|
|
|
|
movdqa 0x30(%r11), %xmm3
|
|
|
|
|
pshufb %xmm1, %xmm3
|
|
|
|
|
pxor %xmm2, %xmm3
|
|
|
|
|
pshufb %xmm5, %xmm3
|
|
|
|
|
|
|
|
|
|
movdqa 0x40(%r11), %xmm2
|
|
|
|
|
pshufb %xmm4, %xmm2
|
|
|
|
|
pxor %xmm3, %xmm2
|
|
|
|
|
movdqa 0x50(%r11), %xmm3
|
|
|
|
|
pshufb %xmm1, %xmm3
|
|
|
|
|
pxor %xmm2, %xmm3
|
|
|
|
|
pshufb %xmm5, %xmm3
|
|
|
|
|
|
|
|
|
|
movdqa 0x60(%r11), %xmm2
|
|
|
|
|
pshufb %xmm4, %xmm2
|
|
|
|
|
pxor %xmm3, %xmm2
|
|
|
|
|
movdqa 0x70(%r11), %xmm3
|
|
|
|
|
pshufb %xmm1, %xmm3
|
|
|
|
|
pxor %xmm2, %xmm3
|
|
|
|
|
|
|
|
|
|
add \$-16, %rdx
|
|
|
|
|
|
|
|
|
|
.Lschedule_mangle_both:
|
|
|
|
|
movdqa (%r8,%r10),%xmm1
|
|
|
|
|
pshufb %xmm1,%xmm3
|
|
|
|
|
add \$-16, %r8
|
|
|
|
|
and \$0x30, %r8
|
|
|
|
|
movdqu %xmm3, (%rdx)
|
|
|
|
|
ret
|
|
|
|
|
.size _vpaes_schedule_mangle,.-_vpaes_schedule_mangle
|
|
|
|
|
|
|
|
|
|
#
|
|
|
|
|
# Interface to OpenSSL
|
|
|
|
|
#
|
|
|
|
|
.globl ${PREFIX}_set_encrypt_key
|
|
|
|
|
.type ${PREFIX}_set_encrypt_key,\@function,3
|
|
|
|
|
.align 16
|
|
|
|
|
${PREFIX}_set_encrypt_key:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___ if ($win64);
|
|
|
|
|
lea -0xb8(%rsp),%rsp
|
|
|
|
|
movaps %xmm6,0x10(%rsp)
|
|
|
|
|
movaps %xmm7,0x20(%rsp)
|
|
|
|
|
movaps %xmm8,0x30(%rsp)
|
|
|
|
|
movaps %xmm9,0x40(%rsp)
|
|
|
|
|
movaps %xmm10,0x50(%rsp)
|
|
|
|
|
movaps %xmm11,0x60(%rsp)
|
|
|
|
|
movaps %xmm12,0x70(%rsp)
|
|
|
|
|
movaps %xmm13,0x80(%rsp)
|
|
|
|
|
movaps %xmm14,0x90(%rsp)
|
|
|
|
|
movaps %xmm15,0xa0(%rsp)
|
|
|
|
|
.Lenc_key_body:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
mov %esi,%eax
|
|
|
|
|
shr \$5,%eax
|
|
|
|
|
add \$5,%eax
|
|
|
|
|
mov %eax,240(%rdx) # AES_KEY->rounds = nbits/32+5;
|
|
|
|
|
|
|
|
|
|
mov \$0,%ecx
|
|
|
|
|
mov \$0x30,%r8d
|
|
|
|
|
call _vpaes_schedule_core
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___ if ($win64);
|
|
|
|
|
movaps 0x10(%rsp),%xmm6
|
|
|
|
|
movaps 0x20(%rsp),%xmm7
|
|
|
|
|
movaps 0x30(%rsp),%xmm8
|
|
|
|
|
movaps 0x40(%rsp),%xmm9
|
|
|
|
|
movaps 0x50(%rsp),%xmm10
|
|
|
|
|
movaps 0x60(%rsp),%xmm11
|
|
|
|
|
movaps 0x70(%rsp),%xmm12
|
|
|
|
|
movaps 0x80(%rsp),%xmm13
|
|
|
|
|
movaps 0x90(%rsp),%xmm14
|
|
|
|
|
movaps 0xa0(%rsp),%xmm15
|
|
|
|
|
lea 0xb8(%rsp),%rsp
|
|
|
|
|
.Lenc_key_epilogue:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
xor %eax,%eax
|
|
|
|
|
ret
|
|
|
|
|
.size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key
|
|
|
|
|
|
|
|
|
|
.globl ${PREFIX}_set_decrypt_key
|
|
|
|
|
.type ${PREFIX}_set_decrypt_key,\@function,3
|
|
|
|
|
.align 16
|
|
|
|
|
${PREFIX}_set_decrypt_key:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___ if ($win64);
|
|
|
|
|
lea -0xb8(%rsp),%rsp
|
|
|
|
|
movaps %xmm6,0x10(%rsp)
|
|
|
|
|
movaps %xmm7,0x20(%rsp)
|
|
|
|
|
movaps %xmm8,0x30(%rsp)
|
|
|
|
|
movaps %xmm9,0x40(%rsp)
|
|
|
|
|
movaps %xmm10,0x50(%rsp)
|
|
|
|
|
movaps %xmm11,0x60(%rsp)
|
|
|
|
|
movaps %xmm12,0x70(%rsp)
|
|
|
|
|
movaps %xmm13,0x80(%rsp)
|
|
|
|
|
movaps %xmm14,0x90(%rsp)
|
|
|
|
|
movaps %xmm15,0xa0(%rsp)
|
|
|
|
|
.Ldec_key_body:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
mov %esi,%eax
|
|
|
|
|
shr \$5,%eax
|
|
|
|
|
add \$5,%eax
|
|
|
|
|
mov %eax,240(%rdx) # AES_KEY->rounds = nbits/32+5;
|
|
|
|
|
shl \$4,%eax
|
|
|
|
|
lea 16(%rdx,%rax),%rdx
|
|
|
|
|
|
|
|
|
|
mov \$1,%ecx
|
|
|
|
|
mov %esi,%r8d
|
|
|
|
|
shr \$1,%r8d
|
|
|
|
|
and \$32,%r8d
|
|
|
|
|
xor \$32,%r8d # nbits==192?0:32
|
|
|
|
|
call _vpaes_schedule_core
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___ if ($win64);
|
|
|
|
|
movaps 0x10(%rsp),%xmm6
|
|
|
|
|
movaps 0x20(%rsp),%xmm7
|
|
|
|
|
movaps 0x30(%rsp),%xmm8
|
|
|
|
|
movaps 0x40(%rsp),%xmm9
|
|
|
|
|
movaps 0x50(%rsp),%xmm10
|
|
|
|
|
movaps 0x60(%rsp),%xmm11
|
|
|
|
|
movaps 0x70(%rsp),%xmm12
|
|
|
|
|
movaps 0x80(%rsp),%xmm13
|
|
|
|
|
movaps 0x90(%rsp),%xmm14
|
|
|
|
|
movaps 0xa0(%rsp),%xmm15
|
|
|
|
|
lea 0xb8(%rsp),%rsp
|
|
|
|
|
.Ldec_key_epilogue:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
xor %eax,%eax
|
|
|
|
|
ret
|
|
|
|
|
.size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key
|
|
|
|
|
|
|
|
|
|
.globl ${PREFIX}_encrypt
|
|
|
|
|
.type ${PREFIX}_encrypt,\@function,3
|
|
|
|
|
.align 16
|
|
|
|
|
${PREFIX}_encrypt:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___ if ($win64);
|
|
|
|
|
lea -0xb8(%rsp),%rsp
|
|
|
|
|
movaps %xmm6,0x10(%rsp)
|
|
|
|
|
movaps %xmm7,0x20(%rsp)
|
|
|
|
|
movaps %xmm8,0x30(%rsp)
|
|
|
|
|
movaps %xmm9,0x40(%rsp)
|
|
|
|
|
movaps %xmm10,0x50(%rsp)
|
|
|
|
|
movaps %xmm11,0x60(%rsp)
|
|
|
|
|
movaps %xmm12,0x70(%rsp)
|
|
|
|
|
movaps %xmm13,0x80(%rsp)
|
|
|
|
|
movaps %xmm14,0x90(%rsp)
|
|
|
|
|
movaps %xmm15,0xa0(%rsp)
|
|
|
|
|
.Lenc_body:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
movdqu (%rdi),%xmm0
|
|
|
|
|
call _vpaes_preheat
|
|
|
|
|
call _vpaes_encrypt_core
|
|
|
|
|
movdqu %xmm0,(%rsi)
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___ if ($win64);
|
|
|
|
|
movaps 0x10(%rsp),%xmm6
|
|
|
|
|
movaps 0x20(%rsp),%xmm7
|
|
|
|
|
movaps 0x30(%rsp),%xmm8
|
|
|
|
|
movaps 0x40(%rsp),%xmm9
|
|
|
|
|
movaps 0x50(%rsp),%xmm10
|
|
|
|
|
movaps 0x60(%rsp),%xmm11
|
|
|
|
|
movaps 0x70(%rsp),%xmm12
|
|
|
|
|
movaps 0x80(%rsp),%xmm13
|
|
|
|
|
movaps 0x90(%rsp),%xmm14
|
|
|
|
|
movaps 0xa0(%rsp),%xmm15
|
|
|
|
|
lea 0xb8(%rsp),%rsp
|
|
|
|
|
.Lenc_epilogue:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
ret
|
|
|
|
|
.size ${PREFIX}_encrypt,.-${PREFIX}_encrypt
|
|
|
|
|
|
|
|
|
|
.globl ${PREFIX}_decrypt
|
|
|
|
|
.type ${PREFIX}_decrypt,\@function,3
|
|
|
|
|
.align 16
|
|
|
|
|
${PREFIX}_decrypt:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___ if ($win64);
|
|
|
|
|
lea -0xb8(%rsp),%rsp
|
|
|
|
|
movaps %xmm6,0x10(%rsp)
|
|
|
|
|
movaps %xmm7,0x20(%rsp)
|
|
|
|
|
movaps %xmm8,0x30(%rsp)
|
|
|
|
|
movaps %xmm9,0x40(%rsp)
|
|
|
|
|
movaps %xmm10,0x50(%rsp)
|
|
|
|
|
movaps %xmm11,0x60(%rsp)
|
|
|
|
|
movaps %xmm12,0x70(%rsp)
|
|
|
|
|
movaps %xmm13,0x80(%rsp)
|
|
|
|
|
movaps %xmm14,0x90(%rsp)
|
|
|
|
|
movaps %xmm15,0xa0(%rsp)
|
|
|
|
|
.Ldec_body:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
movdqu (%rdi),%xmm0
|
|
|
|
|
call _vpaes_preheat
|
|
|
|
|
call _vpaes_decrypt_core
|
|
|
|
|
movdqu %xmm0,(%rsi)
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___ if ($win64);
|
|
|
|
|
movaps 0x10(%rsp),%xmm6
|
|
|
|
|
movaps 0x20(%rsp),%xmm7
|
|
|
|
|
movaps 0x30(%rsp),%xmm8
|
|
|
|
|
movaps 0x40(%rsp),%xmm9
|
|
|
|
|
movaps 0x50(%rsp),%xmm10
|
|
|
|
|
movaps 0x60(%rsp),%xmm11
|
|
|
|
|
movaps 0x70(%rsp),%xmm12
|
|
|
|
|
movaps 0x80(%rsp),%xmm13
|
|
|
|
|
movaps 0x90(%rsp),%xmm14
|
|
|
|
|
movaps 0xa0(%rsp),%xmm15
|
|
|
|
|
lea 0xb8(%rsp),%rsp
|
|
|
|
|
.Ldec_epilogue:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
ret
|
|
|
|
|
.size ${PREFIX}_decrypt,.-${PREFIX}_decrypt
|
|
|
|
|
___
|
|
|
|
|
{
|
|
|
|
|
my ($inp,$out,$len,$key,$ivp,$enc)=("%rdi","%rsi","%rdx","%rcx","%r8","%r9");
|
|
|
|
|
# void AES_cbc_encrypt (const void char *inp, unsigned char *out,
|
|
|
|
|
# size_t length, const AES_KEY *key,
|
|
|
|
|
# unsigned char *ivp,const int enc);
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
.globl ${PREFIX}_cbc_encrypt
|
|
|
|
|
.type ${PREFIX}_cbc_encrypt,\@function,6
|
|
|
|
|
.align 16
|
|
|
|
|
${PREFIX}_cbc_encrypt:
|
|
|
|
|
xchg $key,$len
|
|
|
|
|
___
|
|
|
|
|
($len,$key)=($key,$len);
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
sub \$16,$len
|
|
|
|
|
jc .Lcbc_abort
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___ if ($win64);
|
|
|
|
|
lea -0xb8(%rsp),%rsp
|
|
|
|
|
movaps %xmm6,0x10(%rsp)
|
|
|
|
|
movaps %xmm7,0x20(%rsp)
|
|
|
|
|
movaps %xmm8,0x30(%rsp)
|
|
|
|
|
movaps %xmm9,0x40(%rsp)
|
|
|
|
|
movaps %xmm10,0x50(%rsp)
|
|
|
|
|
movaps %xmm11,0x60(%rsp)
|
|
|
|
|
movaps %xmm12,0x70(%rsp)
|
|
|
|
|
movaps %xmm13,0x80(%rsp)
|
|
|
|
|
movaps %xmm14,0x90(%rsp)
|
|
|
|
|
movaps %xmm15,0xa0(%rsp)
|
|
|
|
|
.Lcbc_body:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
movdqu ($ivp),%xmm6 # load IV
|
|
|
|
|
sub $inp,$out
|
|
|
|
|
call _vpaes_preheat
|
|
|
|
|
cmp \$0,${enc}d
|
|
|
|
|
je .Lcbc_dec_loop
|
|
|
|
|
jmp .Lcbc_enc_loop
|
|
|
|
|
.align 16
|
|
|
|
|
.Lcbc_enc_loop:
|
|
|
|
|
movdqu ($inp),%xmm0
|
|
|
|
|
pxor %xmm6,%xmm0
|
|
|
|
|
call _vpaes_encrypt_core
|
|
|
|
|
movdqa %xmm0,%xmm6
|
|
|
|
|
movdqu %xmm0,($out,$inp)
|
|
|
|
|
lea 16($inp),$inp
|
|
|
|
|
sub \$16,$len
|
|
|
|
|
jnc .Lcbc_enc_loop
|
|
|
|
|
jmp .Lcbc_done
|
|
|
|
|
.align 16
|
|
|
|
|
.Lcbc_dec_loop:
|
|
|
|
|
movdqu ($inp),%xmm0
|
|
|
|
|
movdqa %xmm0,%xmm7
|
|
|
|
|
call _vpaes_decrypt_core
|
|
|
|
|
pxor %xmm6,%xmm0
|
|
|
|
|
movdqa %xmm7,%xmm6
|
|
|
|
|
movdqu %xmm0,($out,$inp)
|
|
|
|
|
lea 16($inp),$inp
|
|
|
|
|
sub \$16,$len
|
|
|
|
|
jnc .Lcbc_dec_loop
|
|
|
|
|
.Lcbc_done:
|
|
|
|
|
movdqu %xmm6,($ivp) # save IV
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___ if ($win64);
|
|
|
|
|
movaps 0x10(%rsp),%xmm6
|
|
|
|
|
movaps 0x20(%rsp),%xmm7
|
|
|
|
|
movaps 0x30(%rsp),%xmm8
|
|
|
|
|
movaps 0x40(%rsp),%xmm9
|
|
|
|
|
movaps 0x50(%rsp),%xmm10
|
|
|
|
|
movaps 0x60(%rsp),%xmm11
|
|
|
|
|
movaps 0x70(%rsp),%xmm12
|
|
|
|
|
movaps 0x80(%rsp),%xmm13
|
|
|
|
|
movaps 0x90(%rsp),%xmm14
|
|
|
|
|
movaps 0xa0(%rsp),%xmm15
|
|
|
|
|
lea 0xb8(%rsp),%rsp
|
|
|
|
|
.Lcbc_epilogue:
|
|
|
|
|
___
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
.Lcbc_abort:
|
|
|
|
|
ret
|
|
|
|
|
.size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt
|
|
|
|
|
___
|
|
|
|
|
}
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
##
|
|
|
|
|
## _aes_preheat
|
|
|
|
|
##
|
|
|
|
|
## Fills register %r10 -> .aes_consts (so you can -fPIC)
|
|
|
|
|
## and %xmm9-%xmm15 as specified below.
|
|
|
|
|
##
|
|
|
|
|
.type _vpaes_preheat,\@abi-omnipotent
|
|
|
|
|
.align 16
|
|
|
|
|
_vpaes_preheat:
|
|
|
|
|
lea .Lk_s0F(%rip), %r10
|
|
|
|
|
movdqa -0x20(%r10), %xmm10 # .Lk_inv
|
|
|
|
|
movdqa -0x10(%r10), %xmm11 # .Lk_inv+16
|
|
|
|
|
movdqa 0x00(%r10), %xmm9 # .Lk_s0F
|
|
|
|
|
movdqa 0x30(%r10), %xmm13 # .Lk_sb1
|
|
|
|
|
movdqa 0x40(%r10), %xmm12 # .Lk_sb1+16
|
|
|
|
|
movdqa 0x50(%r10), %xmm15 # .Lk_sb2
|
|
|
|
|
movdqa 0x60(%r10), %xmm14 # .Lk_sb2+16
|
|
|
|
|
ret
|
|
|
|
|
.size _vpaes_preheat,.-_vpaes_preheat
|
|
|
|
|
########################################################
|
|
|
|
|
## ##
|
|
|
|
|
## Constants ##
|
|
|
|
|
## ##
|
|
|
|
|
########################################################
|
|
|
|
|
.type _vpaes_consts,\@object
|
|
|
|
|
.align 64
|
|
|
|
|
_vpaes_consts:
|
|
|
|
|
.Lk_inv: # inv, inva
|
|
|
|
|
.quad 0x0E05060F0D080180, 0x040703090A0B0C02
|
|
|
|
|
.quad 0x01040A060F0B0780, 0x030D0E0C02050809
|
|
|
|
|
|
|
|
|
|
.Lk_s0F: # s0F
|
|
|
|
|
.quad 0x0F0F0F0F0F0F0F0F, 0x0F0F0F0F0F0F0F0F
|
|
|
|
|
|
|
|
|
|
.Lk_ipt: # input transform (lo, hi)
|
|
|
|
|
.quad 0xC2B2E8985A2A7000, 0xCABAE09052227808
|
|
|
|
|
.quad 0x4C01307D317C4D00, 0xCD80B1FCB0FDCC81
|
|
|
|
|
|
|
|
|
|
.Lk_sb1: # sb1u, sb1t
|
|
|
|
|
.quad 0xB19BE18FCB503E00, 0xA5DF7A6E142AF544
|
|
|
|
|
.quad 0x3618D415FAE22300, 0x3BF7CCC10D2ED9EF
|
|
|
|
|
.Lk_sb2: # sb2u, sb2t
|
|
|
|
|
.quad 0xE27A93C60B712400, 0x5EB7E955BC982FCD
|
|
|
|
|
.quad 0x69EB88400AE12900, 0xC2A163C8AB82234A
|
|
|
|
|
.Lk_sbo: # sbou, sbot
|
|
|
|
|
.quad 0xD0D26D176FBDC700, 0x15AABF7AC502A878
|
|
|
|
|
.quad 0xCFE474A55FBB6A00, 0x8E1E90D1412B35FA
|
|
|
|
|
|
|
|
|
|
.Lk_mc_forward: # mc_forward
|
|
|
|
|
.quad 0x0407060500030201, 0x0C0F0E0D080B0A09
|
|
|
|
|
.quad 0x080B0A0904070605, 0x000302010C0F0E0D
|
|
|
|
|
.quad 0x0C0F0E0D080B0A09, 0x0407060500030201
|
|
|
|
|
.quad 0x000302010C0F0E0D, 0x080B0A0904070605
|
|
|
|
|
|
|
|
|
|
.Lk_mc_backward:# mc_backward
|
|
|
|
|
.quad 0x0605040702010003, 0x0E0D0C0F0A09080B
|
|
|
|
|
.quad 0x020100030E0D0C0F, 0x0A09080B06050407
|
|
|
|
|
.quad 0x0E0D0C0F0A09080B, 0x0605040702010003
|
|
|
|
|
.quad 0x0A09080B06050407, 0x020100030E0D0C0F
|
|
|
|
|
|
|
|
|
|
.Lk_sr: # sr
|
|
|
|
|
.quad 0x0706050403020100, 0x0F0E0D0C0B0A0908
|
|
|
|
|
.quad 0x030E09040F0A0500, 0x0B06010C07020D08
|
|
|
|
|
.quad 0x0F060D040B020900, 0x070E050C030A0108
|
|
|
|
|
.quad 0x0B0E0104070A0D00, 0x0306090C0F020508
|
|
|
|
|
|
|
|
|
|
.Lk_rcon: # rcon
|
|
|
|
|
.quad 0x1F8391B9AF9DEEB6, 0x702A98084D7C7D81
|
|
|
|
|
|
|
|
|
|
.Lk_s63: # s63: all equal to 0x63 transformed
|
|
|
|
|
.quad 0x5B5B5B5B5B5B5B5B, 0x5B5B5B5B5B5B5B5B
|
|
|
|
|
|
|
|
|
|
.Lk_opt: # output transform
|
|
|
|
|
.quad 0xFF9F4929D6B66000, 0xF7974121DEBE6808
|
|
|
|
|
.quad 0x01EDBD5150BCEC00, 0xE10D5DB1B05C0CE0
|
|
|
|
|
|
|
|
|
|
.Lk_deskew: # deskew tables: inverts the sbox's "skew"
|
|
|
|
|
.quad 0x07E4A34047A4E300, 0x1DFEB95A5DBEF91A
|
|
|
|
|
.quad 0x5F36B5DC83EA6900, 0x2841C2ABF49D1E77
|
|
|
|
|
|
|
|
|
|
##
|
|
|
|
|
## Decryption stuff
|
|
|
|
|
## Key schedule constants
|
|
|
|
|
##
|
|
|
|
|
.Lk_dksd: # decryption key schedule: invskew x*D
|
|
|
|
|
.quad 0xFEB91A5DA3E44700, 0x0740E3A45A1DBEF9
|
|
|
|
|
.quad 0x41C277F4B5368300, 0x5FDC69EAAB289D1E
|
|
|
|
|
.Lk_dksb: # decryption key schedule: invskew x*B
|
|
|
|
|
.quad 0x9A4FCA1F8550D500, 0x03D653861CC94C99
|
|
|
|
|
.quad 0x115BEDA7B6FC4A00, 0xD993256F7E3482C8
|
|
|
|
|
.Lk_dkse: # decryption key schedule: invskew x*E + 0x63
|
|
|
|
|
.quad 0xD5031CCA1FC9D600, 0x53859A4C994F5086
|
|
|
|
|
.quad 0xA23196054FDC7BE8, 0xCD5EF96A20B31487
|
|
|
|
|
.Lk_dks9: # decryption key schedule: invskew x*9
|
|
|
|
|
.quad 0xB6116FC87ED9A700, 0x4AED933482255BFC
|
|
|
|
|
.quad 0x4576516227143300, 0x8BB89FACE9DAFDCE
|
|
|
|
|
|
|
|
|
|
##
|
|
|
|
|
## Decryption stuff
|
|
|
|
|
## Round function constants
|
|
|
|
|
##
|
|
|
|
|
.Lk_dipt: # decryption input transform
|
|
|
|
|
.quad 0x0F505B040B545F00, 0x154A411E114E451A
|
|
|
|
|
.quad 0x86E383E660056500, 0x12771772F491F194
|
|
|
|
|
|
|
|
|
|
.Lk_dsb9: # decryption sbox output *9*u, *9*t
|
|
|
|
|
.quad 0x851C03539A86D600, 0xCAD51F504F994CC9
|
|
|
|
|
.quad 0xC03B1789ECD74900, 0x725E2C9EB2FBA565
|
|
|
|
|
.Lk_dsbd: # decryption sbox output *D*u, *D*t
|
|
|
|
|
.quad 0x7D57CCDFE6B1A200, 0xF56E9B13882A4439
|
|
|
|
|
.quad 0x3CE2FAF724C6CB00, 0x2931180D15DEEFD3
|
|
|
|
|
.Lk_dsbb: # decryption sbox output *B*u, *B*t
|
|
|
|
|
.quad 0xD022649296B44200, 0x602646F6B0F2D404
|
|
|
|
|
.quad 0xC19498A6CD596700, 0xF3FF0C3E3255AA6B
|
|
|
|
|
.Lk_dsbe: # decryption sbox output *E*u, *E*t
|
|
|
|
|
.quad 0x46F2929626D4D000, 0x2242600464B4F6B0
|
|
|
|
|
.quad 0x0C55A6CDFFAAC100, 0x9467F36B98593E32
|
|
|
|
|
.Lk_dsbo: # decryption sbox final output
|
|
|
|
|
.quad 0x1387EA537EF94000, 0xC7AA6DB9D4943E2D
|
|
|
|
|
.quad 0x12D7560F93441D00, 0xCA4B8159D8C58E9C
|
2014-06-20 20:00:00 +01:00
|
|
|
.asciz "Vector Permutation AES for x86_64/SSSE3, Mike Hamburg (Stanford University)"
|
2014-06-20 20:00:00 +01:00
|
|
|
.align 64
|
|
|
|
|
.size _vpaes_consts,.-_vpaes_consts
|
|
|
|
|
___
|
|
|
|
|
|
|
|
|
|
if ($win64) {
|
|
|
|
|
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
|
|
|
|
|
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
|
|
|
|
|
$rec="%rcx";
|
|
|
|
|
$frame="%rdx";
|
|
|
|
|
$context="%r8";
|
|
|
|
|
$disp="%r9";
|
|
|
|
|
|
|
|
|
|
$code.=<<___;
|
|
|
|
|
.extern __imp_RtlVirtualUnwind
|
|
|
|
|
.type se_handler,\@abi-omnipotent
|
|
|
|
|
.align 16
|
|
|
|
|
se_handler:
|
|
|
|
|
push %rsi
|
|
|
|
|
push %rdi
|
|
|
|
|
push %rbx
|
|
|
|
|
push %rbp
|
|
|
|
|
push %r12
|
|
|
|
|
push %r13
|
|
|
|
|
push %r14
|
|
|
|
|
push %r15
|
|
|
|
|
pushfq
|
|
|
|
|
sub \$64,%rsp
|
|
|
|
|
|
|
|
|
|
mov 120($context),%rax # pull context->Rax
|
|
|
|
|
mov 248($context),%rbx # pull context->Rip
|
|
|
|
|
|
|
|
|
|
mov 8($disp),%rsi # disp->ImageBase
|
|
|
|
|
mov 56($disp),%r11 # disp->HandlerData
|
|
|
|
|
|
|
|
|
|
mov 0(%r11),%r10d # HandlerData[0]
|
|
|
|
|
lea (%rsi,%r10),%r10 # prologue label
|
|
|
|
|
cmp %r10,%rbx # context->Rip<prologue label
|
|
|
|
|
jb .Lin_prologue
|
|
|
|
|
|
|
|
|
|
mov 152($context),%rax # pull context->Rsp
|
|
|
|
|
|
|
|
|
|
mov 4(%r11),%r10d # HandlerData[1]
|
|
|
|
|
lea (%rsi,%r10),%r10 # epilogue label
|
|
|
|
|
cmp %r10,%rbx # context->Rip>=epilogue label
|
|
|
|
|
jae .Lin_prologue
|
|
|
|
|
|
|
|
|
|
lea 16(%rax),%rsi # %xmm save area
|
|
|
|
|
lea 512($context),%rdi # &context.Xmm6
|
|
|
|
|
mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax)
|
|
|
|
|
.long 0xa548f3fc # cld; rep movsq
|
|
|
|
|
lea 0xb8(%rax),%rax # adjust stack pointer
|
|
|
|
|
|
|
|
|
|
.Lin_prologue:
|
|
|
|
|
mov 8(%rax),%rdi
|
|
|
|
|
mov 16(%rax),%rsi
|
|
|
|
|
mov %rax,152($context) # restore context->Rsp
|
|
|
|
|
mov %rsi,168($context) # restore context->Rsi
|
|
|
|
|
mov %rdi,176($context) # restore context->Rdi
|
|
|
|
|
|
|
|
|
|
mov 40($disp),%rdi # disp->ContextRecord
|
|
|
|
|
mov $context,%rsi # context
|
|
|
|
|
mov \$`1232/8`,%ecx # sizeof(CONTEXT)
|
|
|
|
|
.long 0xa548f3fc # cld; rep movsq
|
|
|
|
|
|
|
|
|
|
mov $disp,%rsi
|
|
|
|
|
xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
|
|
|
|
|
mov 8(%rsi),%rdx # arg2, disp->ImageBase
|
|
|
|
|
mov 0(%rsi),%r8 # arg3, disp->ControlPc
|
|
|
|
|
mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
|
|
|
|
|
mov 40(%rsi),%r10 # disp->ContextRecord
|
|
|
|
|
lea 56(%rsi),%r11 # &disp->HandlerData
|
|
|
|
|
lea 24(%rsi),%r12 # &disp->EstablisherFrame
|
|
|
|
|
mov %r10,32(%rsp) # arg5
|
|
|
|
|
mov %r11,40(%rsp) # arg6
|
|
|
|
|
mov %r12,48(%rsp) # arg7
|
|
|
|
|
mov %rcx,56(%rsp) # arg8, (NULL)
|
|
|
|
|
call *__imp_RtlVirtualUnwind(%rip)
|
|
|
|
|
|
|
|
|
|
mov \$1,%eax # ExceptionContinueSearch
|
|
|
|
|
add \$64,%rsp
|
|
|
|
|
popfq
|
|
|
|
|
pop %r15
|
|
|
|
|
pop %r14
|
|
|
|
|
pop %r13
|
|
|
|
|
pop %r12
|
|
|
|
|
pop %rbp
|
|
|
|
|
pop %rbx
|
|
|
|
|
pop %rdi
|
|
|
|
|
pop %rsi
|
|
|
|
|
ret
|
|
|
|
|
.size se_handler,.-se_handler
|
|
|
|
|
|
|
|
|
|
.section .pdata
|
|
|
|
|
.align 4
|
|
|
|
|
.rva .LSEH_begin_${PREFIX}_set_encrypt_key
|
|
|
|
|
.rva .LSEH_end_${PREFIX}_set_encrypt_key
|
|
|
|
|
.rva .LSEH_info_${PREFIX}_set_encrypt_key
|
|
|
|
|
|
|
|
|
|
.rva .LSEH_begin_${PREFIX}_set_decrypt_key
|
|
|
|
|
.rva .LSEH_end_${PREFIX}_set_decrypt_key
|
|
|
|
|
.rva .LSEH_info_${PREFIX}_set_decrypt_key
|
|
|
|
|
|
|
|
|
|
.rva .LSEH_begin_${PREFIX}_encrypt
|
|
|
|
|
.rva .LSEH_end_${PREFIX}_encrypt
|
|
|
|
|
.rva .LSEH_info_${PREFIX}_encrypt
|
|
|
|
|
|
|
|
|
|
.rva .LSEH_begin_${PREFIX}_decrypt
|
|
|
|
|
.rva .LSEH_end_${PREFIX}_decrypt
|
|
|
|
|
.rva .LSEH_info_${PREFIX}_decrypt
|
|
|
|
|
|
|
|
|
|
.rva .LSEH_begin_${PREFIX}_cbc_encrypt
|
|
|
|
|
.rva .LSEH_end_${PREFIX}_cbc_encrypt
|
|
|
|
|
.rva .LSEH_info_${PREFIX}_cbc_encrypt
|
|
|
|
|
|
|
|
|
|
.section .xdata
|
|
|
|
|
.align 8
|
|
|
|
|
.LSEH_info_${PREFIX}_set_encrypt_key:
|
|
|
|
|
.byte 9,0,0,0
|
|
|
|
|
.rva se_handler
|
|
|
|
|
.rva .Lenc_key_body,.Lenc_key_epilogue # HandlerData[]
|
|
|
|
|
.LSEH_info_${PREFIX}_set_decrypt_key:
|
|
|
|
|
.byte 9,0,0,0
|
|
|
|
|
.rva se_handler
|
|
|
|
|
.rva .Ldec_key_body,.Ldec_key_epilogue # HandlerData[]
|
|
|
|
|
.LSEH_info_${PREFIX}_encrypt:
|
|
|
|
|
.byte 9,0,0,0
|
|
|
|
|
.rva se_handler
|
|
|
|
|
.rva .Lenc_body,.Lenc_epilogue # HandlerData[]
|
|
|
|
|
.LSEH_info_${PREFIX}_decrypt:
|
|
|
|
|
.byte 9,0,0,0
|
|
|
|
|
.rva se_handler
|
|
|
|
|
.rva .Ldec_body,.Ldec_epilogue # HandlerData[]
|
|
|
|
|
.LSEH_info_${PREFIX}_cbc_encrypt:
|
|
|
|
|
.byte 9,0,0,0
|
|
|
|
|
.rva se_handler
|
|
|
|
|
.rva .Lcbc_body,.Lcbc_epilogue # HandlerData[]
|
|
|
|
|
___
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$code =~ s/\`([^\`]*)\`/eval($1)/gem;
|
|
|
|
|
|
|
|
|
|
print $code;
|
|
|
|
|
|
|
|
|
|
close STDOUT;
|
