diff options
Diffstat (limited to 'src/lib/libcrypto/des/str2key.c')
| -rw-r--r-- | src/lib/libcrypto/des/str2key.c | 160 |
1 files changed, 78 insertions, 82 deletions
diff --git a/src/lib/libcrypto/des/str2key.c b/src/lib/libcrypto/des/str2key.c index 316e803927..c9bd9aad1b 100644 --- a/src/lib/libcrypto/des/str2key.c +++ b/src/lib/libcrypto/des/str2key.c | |||
| @@ -1,25 +1,25 @@ | |||
| 1 | /* $OpenBSD: str2key.c,v 1.11 2022/11/26 16:08:51 tb Exp $ */ | 1 | /* $OpenBSD: str2key.c,v 1.12 2023/07/08 07:11:07 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 |
| @@ -59,116 +59,112 @@ | |||
| 59 | #include <openssl/crypto.h> | 59 | #include <openssl/crypto.h> |
| 60 | #include "des_local.h" | 60 | #include "des_local.h" |
| 61 | 61 | ||
| 62 | void DES_string_to_key(const char *str, DES_cblock *key) | 62 | void |
| 63 | { | 63 | DES_string_to_key(const char *str, DES_cblock *key) |
| 64 | { | ||
| 64 | DES_key_schedule ks; | 65 | DES_key_schedule ks; |
| 65 | int i,length; | 66 | int i, length; |
| 66 | unsigned char j; | 67 | unsigned char j; |
| 67 | 68 | ||
| 68 | memset(key,0,8); | 69 | memset(key, 0, 8); |
| 69 | length=strlen(str); | 70 | length = strlen(str); |
| 70 | #ifdef OLD_STR_TO_KEY | 71 | #ifdef OLD_STR_TO_KEY |
| 71 | for (i=0; i<length; i++) | 72 | for (i = 0; i < length; i++) |
| 72 | (*key)[i%8]^=(str[i]<<1); | 73 | (*key)[i % 8] ^= (str[i] << 1); |
| 73 | #else /* MIT COMPATIBLE */ | 74 | #else /* MIT COMPATIBLE */ |
| 74 | for (i=0; i<length; i++) | 75 | for (i = 0; i < length; i++) |
| 75 | { | 76 | { |
| 76 | j=str[i]; | 77 | j = str[i]; |
| 77 | if ((i%16) < 8) | 78 | if ((i % 16) < 8) |
| 78 | (*key)[i%8]^=(j<<1); | 79 | (*key)[i % 8] ^= (j << 1); |
| 79 | else | 80 | else { |
| 80 | { | ||
| 81 | /* Reverse the bit order 05/05/92 eay */ | 81 | /* Reverse the bit order 05/05/92 eay */ |
| 82 | j=((j<<4)&0xf0)|((j>>4)&0x0f); | 82 | j = ((j << 4) & 0xf0)|((j >> 4) & 0x0f); |
| 83 | j=((j<<2)&0xcc)|((j>>2)&0x33); | 83 | j = ((j << 2) & 0xcc)|((j >> 2) & 0x33); |
| 84 | j=((j<<1)&0xaa)|((j>>1)&0x55); | 84 | j = ((j << 1) & 0xaa)|((j >> 1) & 0x55); |
| 85 | (*key)[7-(i%8)]^=j; | 85 | (*key)[7 - (i % 8)] ^= j; |
| 86 | } | ||
| 87 | } | 86 | } |
| 87 | } | ||
| 88 | #endif | 88 | #endif |
| 89 | DES_set_odd_parity(key); | 89 | DES_set_odd_parity(key); |
| 90 | #ifdef EXPERIMENTAL_STR_TO_STRONG_KEY | 90 | #ifdef EXPERIMENTAL_STR_TO_STRONG_KEY |
| 91 | if(DES_is_weak_key(key)) | 91 | if (DES_is_weak_key(key)) |
| 92 | (*key)[7] ^= 0xF0; | 92 | (*key)[7] ^= 0xF0; |
| 93 | DES_set_key(key,&ks); | 93 | DES_set_key(key, &ks); |
| 94 | #else | 94 | #else |
| 95 | DES_set_key_unchecked(key,&ks); | 95 | DES_set_key_unchecked(key, &ks); |
| 96 | #endif | 96 | #endif |
| 97 | DES_cbc_cksum((const unsigned char*)str,key,length,&ks,key); | 97 | DES_cbc_cksum((const unsigned char *)str, key, length, &ks, key); |
| 98 | explicit_bzero(&ks,sizeof(ks)); | 98 | explicit_bzero(&ks, sizeof(ks)); |
| 99 | DES_set_odd_parity(key); | 99 | DES_set_odd_parity(key); |
| 100 | } | 100 | } |
| 101 | 101 | ||
| 102 | void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2) | 102 | void |
| 103 | { | 103 | DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2) |
| 104 | { | ||
| 104 | DES_key_schedule ks; | 105 | DES_key_schedule ks; |
| 105 | int i,length; | 106 | int i, length; |
| 106 | unsigned char j; | 107 | unsigned char j; |
| 107 | 108 | ||
| 108 | memset(key1,0,8); | 109 | memset(key1, 0, 8); |
| 109 | memset(key2,0,8); | 110 | memset(key2, 0, 8); |
| 110 | length=strlen(str); | 111 | length = strlen(str); |
| 111 | #ifdef OLD_STR_TO_KEY | 112 | #ifdef OLD_STR_TO_KEY |
| 112 | if (length <= 8) | 113 | if (length <= 8) { |
| 114 | for (i = 0; i < length; i++) | ||
| 113 | { | 115 | { |
| 114 | for (i=0; i<length; i++) | 116 | (*key2)[i] = (*key1)[i] = (str[i] << 1); |
| 115 | { | ||
| 116 | (*key2)[i]=(*key1)[i]=(str[i]<<1); | ||
| 117 | } | ||
| 118 | } | 117 | } |
| 119 | else | 118 | } else { |
| 119 | for (i = 0; i < length; i++) | ||
| 120 | { | 120 | { |
| 121 | for (i=0; i<length; i++) | 121 | if ((i/8) & 1) |
| 122 | { | 122 | (*key2)[i % 8] ^= (str[i] << 1); |
| 123 | if ((i/8)&1) | ||
| 124 | (*key2)[i%8]^=(str[i]<<1); | ||
| 125 | else | 123 | else |
| 126 | (*key1)[i%8]^=(str[i]<<1); | 124 | (*key1)[i % 8] ^= (str[i] << 1); |
| 127 | } | ||
| 128 | } | 125 | } |
| 126 | } | ||
| 129 | #else /* MIT COMPATIBLE */ | 127 | #else /* MIT COMPATIBLE */ |
| 130 | for (i=0; i<length; i++) | 128 | for (i = 0; i < length; i++) |
| 131 | { | 129 | { |
| 132 | j=str[i]; | 130 | j = str[i]; |
| 133 | if ((i%32) < 16) | 131 | if ((i % 32) < 16) { |
| 134 | { | 132 | if ((i % 16) < 8) |
| 135 | if ((i%16) < 8) | 133 | (*key1)[i % 8] ^= (j << 1); |
| 136 | (*key1)[i%8]^=(j<<1); | ||
| 137 | else | 134 | else |
| 138 | (*key2)[i%8]^=(j<<1); | 135 | (*key2)[i % 8] ^= (j << 1); |
| 139 | } | 136 | } else { |
| 140 | else | 137 | j = ((j << 4) & 0xf0)|((j >> 4) & 0x0f); |
| 141 | { | 138 | j = ((j << 2) & 0xcc)|((j >> 2) & 0x33); |
| 142 | j=((j<<4)&0xf0)|((j>>4)&0x0f); | 139 | j = ((j << 1) & 0xaa)|((j >> 1) & 0x55); |
| 143 | j=((j<<2)&0xcc)|((j>>2)&0x33); | 140 | if ((i % 16) < 8) |
| 144 | j=((j<<1)&0xaa)|((j>>1)&0x55); | 141 | (*key1)[7 - (i % 8)] ^= j; |
| 145 | if ((i%16) < 8) | ||
| 146 | (*key1)[7-(i%8)]^=j; | ||
| 147 | else | 142 | else |
| 148 | (*key2)[7-(i%8)]^=j; | 143 | (*key2)[7 - (i % 8)] ^= j; |
| 149 | } | ||
| 150 | } | 144 | } |
| 151 | if (length <= 8) memcpy(key2,key1,8); | 145 | } |
| 146 | if (length <= 8) | ||
| 147 | memcpy(key2, key1, 8); | ||
| 152 | #endif | 148 | #endif |
| 153 | DES_set_odd_parity(key1); | 149 | DES_set_odd_parity(key1); |
| 154 | DES_set_odd_parity(key2); | 150 | DES_set_odd_parity(key2); |
| 155 | #ifdef EXPERIMENTAL_STR_TO_STRONG_KEY | 151 | #ifdef EXPERIMENTAL_STR_TO_STRONG_KEY |
| 156 | if(DES_is_weak_key(key1)) | 152 | if (DES_is_weak_key(key1)) |
| 157 | (*key1)[7] ^= 0xF0; | 153 | (*key1)[7] ^= 0xF0; |
| 158 | DES_set_key(key1,&ks); | 154 | DES_set_key(key1, &ks); |
| 159 | #else | 155 | #else |
| 160 | DES_set_key_unchecked(key1,&ks); | 156 | DES_set_key_unchecked(key1, &ks); |
| 161 | #endif | 157 | #endif |
| 162 | DES_cbc_cksum((const unsigned char*)str,key1,length,&ks,key1); | 158 | DES_cbc_cksum((const unsigned char *)str, key1, length, &ks, key1); |
| 163 | #ifdef EXPERIMENTAL_STR_TO_STRONG_KEY | 159 | #ifdef EXPERIMENTAL_STR_TO_STRONG_KEY |
| 164 | if(DES_is_weak_key(key2)) | 160 | if (DES_is_weak_key(key2)) |
| 165 | (*key2)[7] ^= 0xF0; | 161 | (*key2)[7] ^= 0xF0; |
| 166 | DES_set_key(key2,&ks); | 162 | DES_set_key(key2, &ks); |
| 167 | #else | 163 | #else |
| 168 | DES_set_key_unchecked(key2,&ks); | 164 | DES_set_key_unchecked(key2, &ks); |
| 169 | #endif | 165 | #endif |
| 170 | DES_cbc_cksum((const unsigned char*)str,key2,length,&ks,key2); | 166 | DES_cbc_cksum((const unsigned char *)str, key2, length, &ks, key2); |
| 171 | explicit_bzero(&ks,sizeof(ks)); | 167 | explicit_bzero(&ks, sizeof(ks)); |
| 172 | DES_set_odd_parity(key1); | 168 | DES_set_odd_parity(key1); |
| 173 | DES_set_odd_parity(key2); | 169 | DES_set_odd_parity(key2); |
| 174 | } | 170 | } |
