diff options
author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/asm | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/asm')
-rw-r--r-- | roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/asm/rc5-586.pl | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/asm/rc5-586.pl b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/asm/rc5-586.pl new file mode 100644 index 000000000..af11be816 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/asm/rc5-586.pl @@ -0,0 +1,122 @@ +#! /usr/bin/env perl +# Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. +# +# Licensed under the OpenSSL license (the "License"). You may not use +# this file except in compliance with the License. You can obtain a copy +# in the file LICENSE in the source distribution or at +# https://www.openssl.org/source/license.html + + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +push(@INC,"${dir}","${dir}../../perlasm"); +require "x86asm.pl"; +require "cbc.pl"; + +$output = pop; +open STDOUT,">$output"; + +&asm_init($ARGV[0]); + +$RC5_MAX_ROUNDS=16; +$RC5_32_OFF=($RC5_MAX_ROUNDS+2)*4; +$A="edi"; +$B="esi"; +$S="ebp"; +$tmp1="eax"; +$r="ebx"; +$tmpc="ecx"; +$tmp4="edx"; + +&RC5_32_encrypt("RC5_32_encrypt",1); +&RC5_32_encrypt("RC5_32_decrypt",0); +&cbc("RC5_32_cbc_encrypt","RC5_32_encrypt","RC5_32_decrypt",0,4,5,3,-1,-1); +&asm_finish(); + +close STDOUT or die "error closing STDOUT: $!"; + +sub RC5_32_encrypt + { + local($name,$enc)=@_; + + &function_begin_B($name,""); + + &comment(""); + + &push("ebp"); + &push("esi"); + &push("edi"); + &mov($tmp4,&wparam(0)); + &mov($S,&wparam(1)); + + &comment("Load the 2 words"); + &mov($A,&DWP(0,$tmp4,"",0)); + &mov($B,&DWP(4,$tmp4,"",0)); + + &push($r); + &mov($r, &DWP(0,$S,"",0)); + + # encrypting part + + if ($enc) + { + &add($A, &DWP(4+0,$S,"",0)); + &add($B, &DWP(4+4,$S,"",0)); + + for ($i=0; $i<$RC5_MAX_ROUNDS; $i++) + { + &xor($A, $B); + &mov($tmp1, &DWP(12+$i*8,$S,"",0)); + &mov($tmpc, $B); + &rotl($A, &LB("ecx")); + &add($A, $tmp1); + + &xor($B, $A); + &mov($tmp1, &DWP(16+$i*8,$S,"",0)); + &mov($tmpc, $A); + &rotl($B, &LB("ecx")); + &add($B, $tmp1); + if (($i == 7) || ($i == 11)) + { + &cmp($r, $i+1); + &je(&label("rc5_exit")); + } + } + } + else + { + &cmp($r, 12); + &je(&label("rc5_dec_12")); + &cmp($r, 8); + &je(&label("rc5_dec_8")); + for ($i=$RC5_MAX_ROUNDS; $i > 0; $i--) + { + &set_label("rc5_dec_$i") if ($i == 12) || ($i == 8); + &mov($tmp1, &DWP($i*8+8,$S,"",0)); + &sub($B, $tmp1); + &mov($tmpc, $A); + &rotr($B, &LB("ecx")); + &xor($B, $A); + + &mov($tmp1, &DWP($i*8+4,$S,"",0)); + &sub($A, $tmp1); + &mov($tmpc, $B); + &rotr($A, &LB("ecx")); + &xor($A, $B); + } + &sub($B, &DWP(4+4,$S,"",0)); + &sub($A, &DWP(4+0,$S,"",0)); + } + + &set_label("rc5_exit"); + &mov(&DWP(0,$tmp4,"",0),$A); + &mov(&DWP(4,$tmp4,"",0),$B); + + &pop("ebx"); + &pop("edi"); + &pop("esi"); + &pop("ebp"); + &ret(); + &function_end_B($name); + } + + |