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-rw-r--r--src/lib/libcrypto/bf/bf_cbc.c160
1 files changed, 77 insertions, 83 deletions
diff --git a/src/lib/libcrypto/bf/bf_cbc.c b/src/lib/libcrypto/bf/bf_cbc.c
index 6f45f9ae4c..58e85b63c8 100644
--- a/src/lib/libcrypto/bf/bf_cbc.c
+++ b/src/lib/libcrypto/bf/bf_cbc.c
@@ -1,25 +1,25 @@
1/* $OpenBSD: bf_cbc.c,v 1.5 2014/10/28 07:35:58 jsg Exp $ */ 1/* $OpenBSD: bf_cbc.c,v 1.6 2022/11/11 12:08:29 jsing Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved. 3 * All rights reserved.
4 * 4 *
5 * This package is an SSL implementation written 5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com). 6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL. 7 * The implementation was written so as to conform with Netscapes SSL.
8 * 8 *
9 * This library is free for commercial and non-commercial use as long as 9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions 10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA, 11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms 13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * 15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in 16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed. 17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution 18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used. 19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or 20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package. 21 * in documentation (online or textual) provided with the package.
22 * 22 *
23 * Redistribution and use in source and binary forms, with or without 23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions 24 * modification, are permitted provided that the following conditions
25 * are met: 25 * are met:
@@ -34,10 +34,10 @@
34 * Eric Young (eay@cryptsoft.com)" 34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library 35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-). 36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from 37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement: 38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * 40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE. 51 * SUCH DAMAGE.
52 * 52 *
53 * The licence and distribution terms for any publically available version or 53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be 54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence 55 * copied and put under another distribution licence
@@ -59,85 +59,79 @@
59#include <openssl/blowfish.h> 59#include <openssl/blowfish.h>
60#include "bf_locl.h" 60#include "bf_locl.h"
61 61
62void BF_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, 62void
63 const BF_KEY *schedule, unsigned char *ivec, int encrypt) 63BF_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
64 { 64 const BF_KEY *schedule, unsigned char *ivec, int encrypt)
65 BF_LONG tin0,tin1; 65{
66 BF_LONG tout0,tout1,xor0,xor1; 66 BF_LONG tin0, tin1;
67 long l=length; 67 BF_LONG tout0, tout1, xor0, xor1;
68 long l = length;
68 BF_LONG tin[2]; 69 BF_LONG tin[2];
69 70
70 if (encrypt) 71 if (encrypt) {
71 { 72 n2l(ivec, tout0);
72 n2l(ivec,tout0); 73 n2l(ivec, tout1);
73 n2l(ivec,tout1); 74 ivec -= 8;
74 ivec-=8; 75 for (l -= 8; l >= 0; l -= 8) {
75 for (l-=8; l>=0; l-=8) 76 n2l(in, tin0);
76 { 77 n2l(in, tin1);
77 n2l(in,tin0); 78 tin0 ^= tout0;
78 n2l(in,tin1); 79 tin1 ^= tout1;
79 tin0^=tout0; 80 tin[0] = tin0;
80 tin1^=tout1; 81 tin[1] = tin1;
81 tin[0]=tin0; 82 BF_encrypt(tin, schedule);
82 tin[1]=tin1; 83 tout0 = tin[0];
83 BF_encrypt(tin,schedule); 84 tout1 = tin[1];
84 tout0=tin[0]; 85 l2n(tout0, out);
85 tout1=tin[1]; 86 l2n(tout1, out);
86 l2n(tout0,out); 87 }
87 l2n(tout1,out); 88 if (l != -8) {
88 } 89 n2ln(in, tin0, tin1, l + 8);
89 if (l != -8) 90 tin0 ^= tout0;
90 { 91 tin1 ^= tout1;
91 n2ln(in,tin0,tin1,l+8); 92 tin[0] = tin0;
92 tin0^=tout0; 93 tin[1] = tin1;
93 tin1^=tout1; 94 BF_encrypt(tin, schedule);
94 tin[0]=tin0; 95 tout0 = tin[0];
95 tin[1]=tin1; 96 tout1 = tin[1];
96 BF_encrypt(tin,schedule); 97 l2n(tout0, out);
97 tout0=tin[0]; 98 l2n(tout1, out);
98 tout1=tin[1]; 99 }
99 l2n(tout0,out); 100 l2n(tout0, ivec);
100 l2n(tout1,out); 101 l2n(tout1, ivec);
101 } 102 } else {
102 l2n(tout0,ivec); 103 n2l(ivec, xor0);
103 l2n(tout1,ivec); 104 n2l(ivec, xor1);
105 ivec -= 8;
106 for (l -= 8; l >= 0; l -= 8) {
107 n2l(in, tin0);
108 n2l(in, tin1);
109 tin[0] = tin0;
110 tin[1] = tin1;
111 BF_decrypt(tin, schedule);
112 tout0 = tin[0]^xor0;
113 tout1 = tin[1]^xor1;
114 l2n(tout0, out);
115 l2n(tout1, out);
116 xor0 = tin0;
117 xor1 = tin1;
104 } 118 }
105 else 119 if (l != -8) {
106 { 120 n2l(in, tin0);
107 n2l(ivec,xor0); 121 n2l(in, tin1);
108 n2l(ivec,xor1); 122 tin[0] = tin0;
109 ivec-=8; 123 tin[1] = tin1;
110 for (l-=8; l>=0; l-=8) 124 BF_decrypt(tin, schedule);
111 { 125 tout0 = tin[0]^xor0;
112 n2l(in,tin0); 126 tout1 = tin[1]^xor1;
113 n2l(in,tin1); 127 l2nn(tout0, tout1, out, l + 8);
114 tin[0]=tin0; 128 xor0 = tin0;
115 tin[1]=tin1; 129 xor1 = tin1;
116 BF_decrypt(tin,schedule);
117 tout0=tin[0]^xor0;
118 tout1=tin[1]^xor1;
119 l2n(tout0,out);
120 l2n(tout1,out);
121 xor0=tin0;
122 xor1=tin1;
123 }
124 if (l != -8)
125 {
126 n2l(in,tin0);
127 n2l(in,tin1);
128 tin[0]=tin0;
129 tin[1]=tin1;
130 BF_decrypt(tin,schedule);
131 tout0=tin[0]^xor0;
132 tout1=tin[1]^xor1;
133 l2nn(tout0,tout1,out,l+8);
134 xor0=tin0;
135 xor1=tin1;
136 }
137 l2n(xor0,ivec);
138 l2n(xor1,ivec);
139 } 130 }
140 tin0=tin1=tout0=tout1=xor0=xor1=0; 131 l2n(xor0, ivec);
141 tin[0]=tin[1]=0; 132 l2n(xor1, ivec);
142 } 133 }
134 tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0;
135 tin[0] = tin[1] = 0;
136}
143 137