1#! /usr/bin/env perl 2# Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. 3# 4# Licensed under the Apache License 2.0 (the "License"). You may not use 5# this file except in compliance with the License. You can obtain a copy 6# in the file LICENSE in the source distribution or at 7# https://www.openssl.org/source/license.html 8 9 10$L="edi"; 11$R="esi"; 12 13sub DES_encrypt3 14 { 15 local($name,$enc)=@_; 16 17 &function_begin_B($name,""); 18 &push("ebx"); 19 &mov("ebx",&wparam(0)); 20 21 &push("ebp"); 22 &push("esi"); 23 24 &push("edi"); 25 26 &comment(""); 27 &comment("Load the data words"); 28 &mov($L,&DWP(0,"ebx","",0)); 29 &mov($R,&DWP(4,"ebx","",0)); 30 &stack_push(3); 31 32 &comment(""); 33 &comment("IP"); 34 &IP_new($L,$R,"edx",0); 35 36 # put them back 37 38 if ($enc) 39 { 40 &mov(&DWP(4,"ebx","",0),$R); 41 &mov("eax",&wparam(1)); 42 &mov(&DWP(0,"ebx","",0),"edx"); 43 &mov("edi",&wparam(2)); 44 &mov("esi",&wparam(3)); 45 } 46 else 47 { 48 &mov(&DWP(4,"ebx","",0),$R); 49 &mov("esi",&wparam(1)); 50 &mov(&DWP(0,"ebx","",0),"edx"); 51 &mov("edi",&wparam(2)); 52 &mov("eax",&wparam(3)); 53 } 54 &mov(&swtmp(2), (DWC(($enc)?"1":"0"))); 55 &mov(&swtmp(1), "eax"); 56 &mov(&swtmp(0), "ebx"); 57 &call("DES_encrypt2"); 58 &mov(&swtmp(2), (DWC(($enc)?"0":"1"))); 59 &mov(&swtmp(1), "edi"); 60 &mov(&swtmp(0), "ebx"); 61 &call("DES_encrypt2"); 62 &mov(&swtmp(2), (DWC(($enc)?"1":"0"))); 63 &mov(&swtmp(1), "esi"); 64 &mov(&swtmp(0), "ebx"); 65 &call("DES_encrypt2"); 66 67 &stack_pop(3); 68 &mov($L,&DWP(0,"ebx","",0)); 69 &mov($R,&DWP(4,"ebx","",0)); 70 71 &comment(""); 72 &comment("FP"); 73 &FP_new($L,$R,"eax",0); 74 75 &mov(&DWP(0,"ebx","",0),"eax"); 76 &mov(&DWP(4,"ebx","",0),$R); 77 78 &pop("edi"); 79 &pop("esi"); 80 &pop("ebp"); 81 &pop("ebx"); 82 &ret(); 83 &function_end_B($name); 84 } 85 86 87