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| author | jsing <> | 2014-05-08 15:13:06 +0000 |
|---|---|---|
| committer | jsing <> | 2014-05-08 15:13:06 +0000 |
| commit | afa026a20fd107fc700f84f9b2db8b5320e934f1 (patch) | |
| tree | ef972fdbbb4716d3000038e30dffd3367e980018 /src/lib/libcrypto/evp/e_des.c | |
| parent | 5420bf0ea074216c637a5b6f7a6c9143a629f1ab (diff) | |
| download | openbsd-afa026a20fd107fc700f84f9b2db8b5320e934f1.tar.gz openbsd-afa026a20fd107fc700f84f9b2db8b5320e934f1.tar.bz2 openbsd-afa026a20fd107fc700f84f9b2db8b5320e934f1.zip | |
KNF.
Diffstat (limited to 'src/lib/libcrypto/evp/e_des.c')
| -rw-r--r-- | src/lib/libcrypto/evp/e_des.c | 221 |
1 files changed, 113 insertions, 108 deletions
diff --git a/src/lib/libcrypto/evp/e_des.c b/src/lib/libcrypto/evp/e_des.c index ca009f2c52..ac46ba6a96 100644 --- a/src/lib/libcrypto/evp/e_des.c +++ b/src/lib/libcrypto/evp/e_des.c | |||
| @@ -5,21 +5,21 @@ | |||
| 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 |
| @@ -66,150 +66,155 @@ | |||
| 66 | #include <openssl/rand.h> | 66 | #include <openssl/rand.h> |
| 67 | 67 | ||
| 68 | static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | 68 | static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
| 69 | const unsigned char *iv, int enc); | 69 | const unsigned char *iv, int enc); |
| 70 | static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); | 70 | static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); |
| 71 | 71 | ||
| 72 | /* Because of various casts and different names can't use IMPLEMENT_BLOCK_CIPHER */ | 72 | /* Because of various casts and different names can't use IMPLEMENT_BLOCK_CIPHER */ |
| 73 | 73 | ||
| 74 | static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | 74 | static int |
| 75 | const unsigned char *in, size_t inl) | 75 | des_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
| 76 | const unsigned char *in, size_t inl) | ||
| 76 | { | 77 | { |
| 77 | BLOCK_CIPHER_ecb_loop() | 78 | BLOCK_CIPHER_ecb_loop() |
| 78 | DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), ctx->cipher_data, ctx->encrypt); | 79 | DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), |
| 80 | ctx->cipher_data, ctx->encrypt); | ||
| 79 | return 1; | 81 | return 1; |
| 80 | } | 82 | } |
| 81 | 83 | ||
| 82 | static int des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | 84 | static int |
| 83 | const unsigned char *in, size_t inl) | 85 | des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
| 86 | const unsigned char *in, size_t inl) | ||
| 84 | { | 87 | { |
| 85 | while(inl>=EVP_MAXCHUNK) | 88 | while (inl >= EVP_MAXCHUNK) { |
| 86 | { | ||
| 87 | DES_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, | 89 | DES_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, |
| 88 | (DES_cblock *)ctx->iv, &ctx->num); | 90 | (DES_cblock *)ctx->iv, &ctx->num); |
| 89 | inl-=EVP_MAXCHUNK; | 91 | inl -= EVP_MAXCHUNK; |
| 90 | in +=EVP_MAXCHUNK; | 92 | in += EVP_MAXCHUNK; |
| 91 | out+=EVP_MAXCHUNK; | 93 | out += EVP_MAXCHUNK; |
| 92 | } | 94 | } |
| 93 | if (inl) | 95 | if (inl) |
| 94 | DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data, | 96 | DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data, |
| 95 | (DES_cblock *)ctx->iv, &ctx->num); | 97 | (DES_cblock *)ctx->iv, &ctx->num); |
| 96 | return 1; | 98 | return 1; |
| 97 | } | 99 | } |
| 98 | 100 | ||
| 99 | static int des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | 101 | static int |
| 100 | const unsigned char *in, size_t inl) | 102 | des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
| 103 | const unsigned char *in, size_t inl) | ||
| 101 | { | 104 | { |
| 102 | while(inl>=EVP_MAXCHUNK) | 105 | while (inl >= EVP_MAXCHUNK) { |
| 103 | { | ||
| 104 | DES_ncbc_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, | 106 | DES_ncbc_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, |
| 105 | (DES_cblock *)ctx->iv, ctx->encrypt); | 107 | (DES_cblock *)ctx->iv, ctx->encrypt); |
| 106 | inl-=EVP_MAXCHUNK; | 108 | inl -= EVP_MAXCHUNK; |
| 107 | in +=EVP_MAXCHUNK; | 109 | in += EVP_MAXCHUNK; |
| 108 | out+=EVP_MAXCHUNK; | 110 | out += EVP_MAXCHUNK; |
| 109 | } | 111 | } |
| 110 | if (inl) | 112 | if (inl) |
| 111 | DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data, | 113 | DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data, |
| 112 | (DES_cblock *)ctx->iv, ctx->encrypt); | 114 | (DES_cblock *)ctx->iv, ctx->encrypt); |
| 113 | return 1; | 115 | return 1; |
| 114 | } | 116 | } |
| 115 | 117 | ||
| 116 | static int des_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | 118 | static int |
| 117 | const unsigned char *in, size_t inl) | 119 | des_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
| 120 | const unsigned char *in, size_t inl) | ||
| 118 | { | 121 | { |
| 119 | while(inl>=EVP_MAXCHUNK) | 122 | while (inl >= EVP_MAXCHUNK) { |
| 120 | { | 123 | DES_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, |
| 121 | DES_cfb64_encrypt(in,out, (long)EVP_MAXCHUNK, ctx->cipher_data, | 124 | (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); |
| 122 | (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); | 125 | inl -= EVP_MAXCHUNK; |
| 123 | inl-=EVP_MAXCHUNK; | 126 | in += EVP_MAXCHUNK; |
| 124 | in +=EVP_MAXCHUNK; | 127 | out += EVP_MAXCHUNK; |
| 125 | out+=EVP_MAXCHUNK; | 128 | } |
| 126 | } | ||
| 127 | if (inl) | 129 | if (inl) |
| 128 | DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data, | 130 | DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data, |
| 129 | (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); | 131 | (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); |
| 130 | return 1; | 132 | return 1; |
| 131 | } | 133 | } |
| 132 | 134 | ||
| 133 | /* Although we have a CFB-r implementation for DES, it doesn't pack the right | 135 | /* Although we have a CFB-r implementation for DES, it doesn't pack the right |
| 134 | way, so wrap it here */ | 136 | way, so wrap it here */ |
| 135 | static int des_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | 137 | static int |
| 136 | const unsigned char *in, size_t inl) | 138 | des_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
| 137 | { | 139 | const unsigned char *in, size_t inl) |
| 138 | size_t n,chunk=EVP_MAXCHUNK/8; | 140 | { |
| 139 | unsigned char c[1],d[1]; | 141 | size_t n, chunk = EVP_MAXCHUNK/8; |
| 140 | 142 | unsigned char c[1], d[1]; | |
| 141 | if (inl<chunk) chunk=inl; | 143 | |
| 142 | 144 | if (inl < chunk) | |
| 143 | while (inl && inl>=chunk) | 145 | chunk = inl; |
| 144 | { | 146 | |
| 145 | for(n=0 ; n < chunk*8; ++n) | 147 | while (inl && inl >= chunk) { |
| 146 | { | 148 | for (n = 0; n < chunk*8; ++n) { |
| 147 | c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0; | 149 | c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0; |
| 148 | DES_cfb_encrypt(c,d,1,1,ctx->cipher_data,(DES_cblock *)ctx->iv, | 150 | DES_cfb_encrypt(c, d, 1, 1, ctx->cipher_data, |
| 149 | ctx->encrypt); | 151 | (DES_cblock *)ctx->iv, ctx->encrypt); |
| 150 | out[n/8]=(out[n/8]&~(0x80 >> (unsigned int)(n%8))) | | 152 | out[n / 8] = (out[n / 8] & |
| 151 | ((d[0]&0x80) >> (unsigned int)(n%8)); | 153 | ~(0x80 >> (unsigned int)(n % 8))) | |
| 152 | } | 154 | ((d[0] & 0x80) >> (unsigned int)(n % 8)); |
| 153 | inl-=chunk; | 155 | } |
| 154 | in +=chunk; | 156 | inl -= chunk; |
| 155 | out+=chunk; | 157 | in += chunk; |
| 156 | if (inl<chunk) chunk=inl; | 158 | out += chunk; |
| 159 | if (inl < chunk) | ||
| 160 | chunk = inl; | ||
| 157 | } | 161 | } |
| 158 | 162 | ||
| 159 | return 1; | 163 | return 1; |
| 160 | } | 164 | } |
| 161 | 165 | ||
| 162 | static int des_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | 166 | static int |
| 163 | const unsigned char *in, size_t inl) | 167 | des_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
| 164 | { | 168 | const unsigned char *in, size_t inl) |
| 165 | while (inl>=EVP_MAXCHUNK) | 169 | { |
| 166 | { | 170 | while (inl >= EVP_MAXCHUNK) { |
| 167 | DES_cfb_encrypt(in,out,8,(long)EVP_MAXCHUNK,ctx->cipher_data, | 171 | DES_cfb_encrypt(in, out, 8, (long)EVP_MAXCHUNK, |
| 168 | (DES_cblock *)ctx->iv,ctx->encrypt); | 172 | ctx->cipher_data, (DES_cblock *)ctx->iv, ctx->encrypt); |
| 169 | inl-=EVP_MAXCHUNK; | 173 | inl -= EVP_MAXCHUNK; |
| 170 | in +=EVP_MAXCHUNK; | 174 | in += EVP_MAXCHUNK; |
| 171 | out+=EVP_MAXCHUNK; | 175 | out += EVP_MAXCHUNK; |
| 172 | } | 176 | } |
| 173 | if (inl) | 177 | if (inl) |
| 174 | DES_cfb_encrypt(in,out,8,(long)inl,ctx->cipher_data, | 178 | DES_cfb_encrypt(in, out, 8,(long)inl, ctx->cipher_data, |
| 175 | (DES_cblock *)ctx->iv,ctx->encrypt); | 179 | (DES_cblock *)ctx->iv, ctx->encrypt); |
| 176 | return 1; | 180 | return 1; |
| 177 | } | 181 | } |
| 178 | 182 | ||
| 179 | BLOCK_CIPHER_defs(des, DES_key_schedule, NID_des, 8, 8, 8, 64, | 183 | BLOCK_CIPHER_defs(des, DES_key_schedule, NID_des, 8, 8, 8, 64, |
| 180 | EVP_CIPH_RAND_KEY, des_init_key, NULL, | 184 | EVP_CIPH_RAND_KEY, des_init_key, NULL, |
| 181 | EVP_CIPHER_set_asn1_iv, | 185 | EVP_CIPHER_set_asn1_iv, |
| 182 | EVP_CIPHER_get_asn1_iv, | 186 | EVP_CIPHER_get_asn1_iv, |
| 183 | des_ctrl) | 187 | des_ctrl) |
| 184 | 188 | ||
| 185 | BLOCK_CIPHER_def_cfb(des,DES_key_schedule,NID_des,8,8,1, | 189 | BLOCK_CIPHER_def_cfb(des, DES_key_schedule, NID_des, 8,8, 1, |
| 186 | EVP_CIPH_RAND_KEY, des_init_key,NULL, | 190 | EVP_CIPH_RAND_KEY, des_init_key, NULL, |
| 187 | EVP_CIPHER_set_asn1_iv, | 191 | EVP_CIPHER_set_asn1_iv, |
| 188 | EVP_CIPHER_get_asn1_iv,des_ctrl) | 192 | EVP_CIPHER_get_asn1_iv, des_ctrl) |
| 189 | 193 | ||
| 190 | BLOCK_CIPHER_def_cfb(des,DES_key_schedule,NID_des,8,8,8, | 194 | BLOCK_CIPHER_def_cfb(des, DES_key_schedule, NID_des, 8,8, 8, |
| 191 | EVP_CIPH_RAND_KEY,des_init_key,NULL, | 195 | EVP_CIPH_RAND_KEY, des_init_key, NULL, |
| 192 | EVP_CIPHER_set_asn1_iv, | 196 | EVP_CIPHER_set_asn1_iv, |
| 193 | EVP_CIPHER_get_asn1_iv,des_ctrl) | 197 | EVP_CIPHER_get_asn1_iv, des_ctrl) |
| 194 | 198 | ||
| 195 | static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | 199 | static int |
| 196 | const unsigned char *iv, int enc) | 200 | des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
| 197 | { | 201 | const unsigned char *iv, int enc) |
| 202 | { | ||
| 198 | DES_cblock *deskey = (DES_cblock *)key; | 203 | DES_cblock *deskey = (DES_cblock *)key; |
| 204 | |||
| 199 | #ifdef EVP_CHECK_DES_KEY | 205 | #ifdef EVP_CHECK_DES_KEY |
| 200 | if(DES_set_key_checked(deskey,ctx->cipher_data) != 0) | 206 | if (DES_set_key_checked(deskey, ctx->cipher_data) != 0) |
| 201 | return 0; | 207 | return 0; |
| 202 | #else | 208 | #else |
| 203 | DES_set_key_unchecked(deskey,ctx->cipher_data); | 209 | DES_set_key_unchecked(deskey, ctx->cipher_data); |
| 204 | #endif | 210 | #endif |
| 205 | return 1; | 211 | return 1; |
| 206 | } | 212 | } |
| 207 | 213 | ||
| 208 | static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) | 214 | static int |
| 209 | { | 215 | des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) |
| 210 | 216 | { | |
| 211 | switch(type) | 217 | switch (type) { |
| 212 | { | ||
| 213 | case EVP_CTRL_RAND_KEY: | 218 | case EVP_CTRL_RAND_KEY: |
| 214 | if (RAND_bytes(ptr, 8) <= 0) | 219 | if (RAND_bytes(ptr, 8) <= 0) |
| 215 | return 0; | 220 | return 0; |
| @@ -218,7 +223,7 @@ static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) | |||
| 218 | 223 | ||
| 219 | default: | 224 | default: |
| 220 | return -1; | 225 | return -1; |
| 221 | } | ||
| 222 | } | 226 | } |
| 227 | } | ||
| 223 | 228 | ||
| 224 | #endif | 229 | #endif |
