diff options
Diffstat (limited to 'src/lib/libcrypto/rc2/rc2cfb64.c')
-rw-r--r-- | src/lib/libcrypto/rc2/rc2cfb64.c | 113 |
1 files changed, 57 insertions, 56 deletions
diff --git a/src/lib/libcrypto/rc2/rc2cfb64.c b/src/lib/libcrypto/rc2/rc2cfb64.c index ebdeb9ba54..e320f5ef94 100644 --- a/src/lib/libcrypto/rc2/rc2cfb64.c +++ b/src/lib/libcrypto/rc2/rc2cfb64.c | |||
@@ -1,25 +1,25 @@ | |||
1 | /* $OpenBSD: rc2cfb64.c,v 1.6 2022/11/26 16:08:54 tb Exp $ */ | 1 | /* $OpenBSD: rc2cfb64.c,v 1.7 2023/07/07 08:29:37 beck 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 |
@@ -64,59 +64,60 @@ | |||
64 | * 64bit block we have used is contained in *num; | 64 | * 64bit block we have used is contained in *num; |
65 | */ | 65 | */ |
66 | 66 | ||
67 | void RC2_cfb64_encrypt(const unsigned char *in, unsigned char *out, | 67 | void |
68 | long length, RC2_KEY *schedule, unsigned char *ivec, | 68 | RC2_cfb64_encrypt(const unsigned char *in, unsigned char *out, |
69 | int *num, int encrypt) | 69 | long length, RC2_KEY *schedule, unsigned char *ivec, |
70 | { | 70 | int *num, int encrypt) |
71 | unsigned long v0,v1,t; | 71 | { |
72 | int n= *num; | 72 | unsigned long v0, v1, t; |
73 | long l=length; | 73 | int n = *num; |
74 | long l = length; | ||
74 | unsigned long ti[2]; | 75 | unsigned long ti[2]; |
75 | unsigned char *iv,c,cc; | 76 | unsigned char *iv, c, cc; |
76 | 77 | ||
77 | iv=(unsigned char *)ivec; | 78 | iv = (unsigned char *)ivec; |
78 | if (encrypt) | 79 | if (encrypt) { |
79 | { | 80 | while (l--) { |
80 | while (l--) | 81 | if (n == 0) { |
81 | { | 82 | c2l(iv, v0); |
82 | if (n == 0) | 83 | ti[0] = v0; |
83 | { | 84 | c2l(iv, v1); |
84 | c2l(iv,v0); ti[0]=v0; | 85 | ti[1] = v1; |
85 | c2l(iv,v1); ti[1]=v1; | 86 | RC2_encrypt((unsigned long *)ti, schedule); |
86 | RC2_encrypt((unsigned long *)ti,schedule); | 87 | iv = (unsigned char *)ivec; |
87 | iv=(unsigned char *)ivec; | 88 | t = ti[0]; |
88 | t=ti[0]; l2c(t,iv); | 89 | l2c(t, iv); |
89 | t=ti[1]; l2c(t,iv); | 90 | t = ti[1]; |
90 | iv=(unsigned char *)ivec; | 91 | l2c(t, iv); |
91 | } | 92 | iv = (unsigned char *)ivec; |
92 | c= *(in++)^iv[n]; | ||
93 | *(out++)=c; | ||
94 | iv[n]=c; | ||
95 | n=(n+1)&0x07; | ||
96 | } | 93 | } |
94 | c = *(in++) ^ iv[n]; | ||
95 | *(out++) = c; | ||
96 | iv[n] = c; | ||
97 | n = (n + 1) & 0x07; | ||
97 | } | 98 | } |
98 | else | 99 | } else { |
99 | { | 100 | while (l--) { |
100 | while (l--) | 101 | if (n == 0) { |
101 | { | 102 | c2l(iv, v0); |
102 | if (n == 0) | 103 | ti[0] = v0; |
103 | { | 104 | c2l(iv, v1); |
104 | c2l(iv,v0); ti[0]=v0; | 105 | ti[1] = v1; |
105 | c2l(iv,v1); ti[1]=v1; | 106 | RC2_encrypt((unsigned long *)ti, schedule); |
106 | RC2_encrypt((unsigned long *)ti,schedule); | 107 | iv = (unsigned char *)ivec; |
107 | iv=(unsigned char *)ivec; | 108 | t = ti[0]; |
108 | t=ti[0]; l2c(t,iv); | 109 | l2c(t, iv); |
109 | t=ti[1]; l2c(t,iv); | 110 | t = ti[1]; |
110 | iv=(unsigned char *)ivec; | 111 | l2c(t, iv); |
111 | } | 112 | iv = (unsigned char *)ivec; |
112 | cc= *(in++); | ||
113 | c=iv[n]; | ||
114 | iv[n]=cc; | ||
115 | *(out++)=c^cc; | ||
116 | n=(n+1)&0x07; | ||
117 | } | 113 | } |
114 | cc = *(in++); | ||
115 | c = iv[n]; | ||
116 | iv[n] = cc; | ||
117 | *(out++) = c ^ cc; | ||
118 | n = (n + 1) & 0x07; | ||
118 | } | 119 | } |
119 | v0=v1=ti[0]=ti[1]=t=c=cc=0; | ||
120 | *num=n; | ||
121 | } | 120 | } |
122 | 121 | v0 = v1 = ti[0] = ti[1] = t = c = cc = 0; | |
122 | *num = n; | ||
123 | } | ||