| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | #! /usr/bin/env perl |
| 2 | # Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | # |
| 4 | # Licensed under the OpenSSL license (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 | $R="esi"; |
| 12 | |
| 13 | sub DES_encrypt3 |
| 14 | { |
| 15 | local($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 | |