diff options
Diffstat (limited to 'src/lib/libcrypto/aes/aes_wrap.c')
| -rw-r--r-- | src/lib/libcrypto/aes/aes_wrap.c | 186 |
1 files changed, 88 insertions, 98 deletions
diff --git a/src/lib/libcrypto/aes/aes_wrap.c b/src/lib/libcrypto/aes/aes_wrap.c index e2d73d37ce..198b0be333 100644 --- a/src/lib/libcrypto/aes/aes_wrap.c +++ b/src/lib/libcrypto/aes/aes_wrap.c | |||
| @@ -56,13 +56,13 @@ | |||
| 56 | #include <openssl/bio.h> | 56 | #include <openssl/bio.h> |
| 57 | 57 | ||
| 58 | static const unsigned char default_iv[] = { | 58 | static const unsigned char default_iv[] = { |
| 59 | 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, | 59 | 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, |
| 60 | }; | 60 | }; |
| 61 | 61 | ||
| 62 | int AES_wrap_key(AES_KEY *key, const unsigned char *iv, | 62 | int |
| 63 | unsigned char *out, | 63 | AES_wrap_key(AES_KEY *key, const unsigned char *iv, unsigned char *out, |
| 64 | const unsigned char *in, unsigned int inlen) | 64 | const unsigned char *in, unsigned int inlen) |
| 65 | { | 65 | { |
| 66 | unsigned char *A, B[16], *R; | 66 | unsigned char *A, B[16], *R; |
| 67 | unsigned int i, j, t; | 67 | unsigned int i, j, t; |
| 68 | if ((inlen & 0x7) || (inlen < 8)) | 68 | if ((inlen & 0x7) || (inlen < 8)) |
| @@ -75,31 +75,28 @@ int AES_wrap_key(AES_KEY *key, const unsigned char *iv, | |||
| 75 | 75 | ||
| 76 | memcpy(A, iv, 8); | 76 | memcpy(A, iv, 8); |
| 77 | 77 | ||
| 78 | for (j = 0; j < 6; j++) | 78 | for (j = 0; j < 6; j++) { |
| 79 | { | ||
| 80 | R = out + 8; | 79 | R = out + 8; |
| 81 | for (i = 0; i < inlen; i += 8, t++, R += 8) | 80 | for (i = 0; i < inlen; i += 8, t++, R += 8) { |
| 82 | { | ||
| 83 | memcpy(B + 8, R, 8); | 81 | memcpy(B + 8, R, 8); |
| 84 | AES_encrypt(B, B, key); | 82 | AES_encrypt(B, B, key); |
| 85 | A[7] ^= (unsigned char)(t & 0xff); | 83 | A[7] ^= (unsigned char)(t & 0xff); |
| 86 | if (t > 0xff) | 84 | if (t > 0xff) { |
| 87 | { | ||
| 88 | A[6] ^= (unsigned char)((t >> 8) & 0xff); | 85 | A[6] ^= (unsigned char)((t >> 8) & 0xff); |
| 89 | A[5] ^= (unsigned char)((t >> 16) & 0xff); | 86 | A[5] ^= (unsigned char)((t >> 16) & 0xff); |
| 90 | A[4] ^= (unsigned char)((t >> 24) & 0xff); | 87 | A[4] ^= (unsigned char)((t >> 24) & 0xff); |
| 91 | } | ||
| 92 | memcpy(R, B + 8, 8); | ||
| 93 | } | 88 | } |
| 89 | memcpy(R, B + 8, 8); | ||
| 94 | } | 90 | } |
| 91 | } | ||
| 95 | memcpy(out, A, 8); | 92 | memcpy(out, A, 8); |
| 96 | return inlen + 8; | 93 | return inlen + 8; |
| 97 | } | 94 | } |
| 98 | 95 | ||
| 99 | int AES_unwrap_key(AES_KEY *key, const unsigned char *iv, | 96 | int |
| 100 | unsigned char *out, | 97 | AES_unwrap_key(AES_KEY *key, const unsigned char *iv, unsigned char *out, |
| 101 | const unsigned char *in, unsigned int inlen) | 98 | const unsigned char *in, unsigned int inlen) |
| 102 | { | 99 | { |
| 103 | unsigned char *A, B[16], *R; | 100 | unsigned char *A, B[16], *R; |
| 104 | unsigned int i, j, t; | 101 | unsigned int i, j, t; |
| 105 | inlen -= 8; | 102 | inlen -= 8; |
| @@ -108,43 +105,39 @@ int AES_unwrap_key(AES_KEY *key, const unsigned char *iv, | |||
| 108 | if (inlen < 8) | 105 | if (inlen < 8) |
| 109 | return -1; | 106 | return -1; |
| 110 | A = B; | 107 | A = B; |
| 111 | t = 6 * (inlen >> 3); | 108 | t = 6 * (inlen >> 3); |
| 112 | memcpy(A, in, 8); | 109 | memcpy(A, in, 8); |
| 113 | memcpy(out, in + 8, inlen); | 110 | memcpy(out, in + 8, inlen); |
| 114 | for (j = 0; j < 6; j++) | 111 | for (j = 0; j < 6; j++) { |
| 115 | { | ||
| 116 | R = out + inlen - 8; | 112 | R = out + inlen - 8; |
| 117 | for (i = 0; i < inlen; i += 8, t--, R -= 8) | 113 | for (i = 0; i < inlen; i += 8, t--, R -= 8) { |
| 118 | { | ||
| 119 | A[7] ^= (unsigned char)(t & 0xff); | 114 | A[7] ^= (unsigned char)(t & 0xff); |
| 120 | if (t > 0xff) | 115 | if (t > 0xff) { |
| 121 | { | ||
| 122 | A[6] ^= (unsigned char)((t >> 8) & 0xff); | 116 | A[6] ^= (unsigned char)((t >> 8) & 0xff); |
| 123 | A[5] ^= (unsigned char)((t >> 16) & 0xff); | 117 | A[5] ^= (unsigned char)((t >> 16) & 0xff); |
| 124 | A[4] ^= (unsigned char)((t >> 24) & 0xff); | 118 | A[4] ^= (unsigned char)((t >> 24) & 0xff); |
| 125 | } | 119 | } |
| 126 | memcpy(B + 8, R, 8); | 120 | memcpy(B + 8, R, 8); |
| 127 | AES_decrypt(B, B, key); | 121 | AES_decrypt(B, B, key); |
| 128 | memcpy(R, B + 8, 8); | 122 | memcpy(R, B + 8, 8); |
| 129 | } | ||
| 130 | } | 123 | } |
| 124 | } | ||
| 131 | if (!iv) | 125 | if (!iv) |
| 132 | iv = default_iv; | 126 | iv = default_iv; |
| 133 | if (memcmp(A, iv, 8)) | 127 | if (memcmp(A, iv, 8)) { |
| 134 | { | ||
| 135 | OPENSSL_cleanse(out, inlen); | 128 | OPENSSL_cleanse(out, inlen); |
| 136 | return 0; | 129 | return 0; |
| 137 | } | ||
| 138 | return inlen; | ||
| 139 | } | 130 | } |
| 131 | return inlen; | ||
| 132 | } | ||
| 140 | 133 | ||
| 141 | #ifdef AES_WRAP_TEST | 134 | #ifdef AES_WRAP_TEST |
| 142 | 135 | ||
| 143 | int AES_wrap_unwrap_test(const unsigned char *kek, int keybits, | 136 | int |
| 144 | const unsigned char *iv, | 137 | AES_wrap_unwrap_test(const unsigned char *kek, int keybits, |
| 145 | const unsigned char *eout, | 138 | const unsigned char *iv, const unsigned char *eout, |
| 146 | const unsigned char *key, int keylen) | 139 | const unsigned char *key, int keylen) |
| 147 | { | 140 | { |
| 148 | unsigned char *otmp = NULL, *ptmp = NULL; | 141 | unsigned char *otmp = NULL, *ptmp = NULL; |
| 149 | int r, ret = 0; | 142 | int r, ret = 0; |
| 150 | AES_KEY wctx; | 143 | AES_KEY wctx; |
| @@ -160,7 +153,7 @@ int AES_wrap_unwrap_test(const unsigned char *kek, int keybits, | |||
| 160 | 153 | ||
| 161 | if (eout && memcmp(eout, otmp, keylen)) | 154 | if (eout && memcmp(eout, otmp, keylen)) |
| 162 | goto err; | 155 | goto err; |
| 163 | 156 | ||
| 164 | if (AES_set_decrypt_key(kek, keybits, &wctx)) | 157 | if (AES_set_decrypt_key(kek, keybits, &wctx)) |
| 165 | goto err; | 158 | goto err; |
| 166 | r = AES_unwrap_key(&wctx, iv, ptmp, otmp, r); | 159 | r = AES_unwrap_key(&wctx, iv, ptmp, otmp, r); |
| @@ -170,74 +163,72 @@ int AES_wrap_unwrap_test(const unsigned char *kek, int keybits, | |||
| 170 | 163 | ||
| 171 | ret = 1; | 164 | ret = 1; |
| 172 | 165 | ||
| 173 | err: | 166 | err: |
| 174 | if (otmp) | 167 | if (otmp) |
| 175 | OPENSSL_free(otmp); | 168 | OPENSSL_free(otmp); |
| 176 | if (ptmp) | 169 | if (ptmp) |
| 177 | OPENSSL_free(ptmp); | 170 | OPENSSL_free(ptmp); |
| 178 | 171 | ||
| 179 | return ret; | 172 | return ret; |
| 180 | 173 | } | |
| 181 | } | ||
| 182 | |||
| 183 | 174 | ||
| 184 | 175 | ||
| 185 | int main(int argc, char **argv) | 176 | int |
| 177 | main(int argc, char **argv) | ||
| 186 | { | 178 | { |
| 187 | 179 | static const unsigned char kek[] = { | |
| 188 | static const unsigned char kek[] = { | 180 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 189 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | 181 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
| 190 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, | 182 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 191 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, | 183 | 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f |
| 192 | 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f | 184 | }; |
| 193 | }; | 185 | |
| 194 | 186 | static const unsigned char key[] = { | |
| 195 | static const unsigned char key[] = { | 187 | 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, |
| 196 | 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, | 188 | 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, |
| 197 | 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, | 189 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 198 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | 190 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f |
| 199 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f | 191 | }; |
| 200 | }; | 192 | |
| 201 | 193 | static const unsigned char e1[] = { | |
| 202 | static const unsigned char e1[] = { | 194 | 0x1f, 0xa6, 0x8b, 0x0a, 0x81, 0x12, 0xb4, 0x47, |
| 203 | 0x1f, 0xa6, 0x8b, 0x0a, 0x81, 0x12, 0xb4, 0x47, | 195 | 0xae, 0xf3, 0x4b, 0xd8, 0xfb, 0x5a, 0x7b, 0x82, |
| 204 | 0xae, 0xf3, 0x4b, 0xd8, 0xfb, 0x5a, 0x7b, 0x82, | 196 | 0x9d, 0x3e, 0x86, 0x23, 0x71, 0xd2, 0xcf, 0xe5 |
| 205 | 0x9d, 0x3e, 0x86, 0x23, 0x71, 0xd2, 0xcf, 0xe5 | 197 | }; |
| 206 | }; | 198 | |
| 207 | 199 | static const unsigned char e2[] = { | |
| 208 | static const unsigned char e2[] = { | 200 | 0x96, 0x77, 0x8b, 0x25, 0xae, 0x6c, 0xa4, 0x35, |
| 209 | 0x96, 0x77, 0x8b, 0x25, 0xae, 0x6c, 0xa4, 0x35, | 201 | 0xf9, 0x2b, 0x5b, 0x97, 0xc0, 0x50, 0xae, 0xd2, |
| 210 | 0xf9, 0x2b, 0x5b, 0x97, 0xc0, 0x50, 0xae, 0xd2, | 202 | 0x46, 0x8a, 0xb8, 0xa1, 0x7a, 0xd8, 0x4e, 0x5d |
| 211 | 0x46, 0x8a, 0xb8, 0xa1, 0x7a, 0xd8, 0x4e, 0x5d | 203 | }; |
| 212 | }; | 204 | |
| 213 | 205 | static const unsigned char e3[] = { | |
| 214 | static const unsigned char e3[] = { | 206 | 0x64, 0xe8, 0xc3, 0xf9, 0xce, 0x0f, 0x5b, 0xa2, |
| 215 | 0x64, 0xe8, 0xc3, 0xf9, 0xce, 0x0f, 0x5b, 0xa2, | 207 | 0x63, 0xe9, 0x77, 0x79, 0x05, 0x81, 0x8a, 0x2a, |
| 216 | 0x63, 0xe9, 0x77, 0x79, 0x05, 0x81, 0x8a, 0x2a, | 208 | 0x93, 0xc8, 0x19, 0x1e, 0x7d, 0x6e, 0x8a, 0xe7 |
| 217 | 0x93, 0xc8, 0x19, 0x1e, 0x7d, 0x6e, 0x8a, 0xe7 | 209 | }; |
| 218 | }; | 210 | |
| 219 | 211 | static const unsigned char e4[] = { | |
| 220 | static const unsigned char e4[] = { | 212 | 0x03, 0x1d, 0x33, 0x26, 0x4e, 0x15, 0xd3, 0x32, |
| 221 | 0x03, 0x1d, 0x33, 0x26, 0x4e, 0x15, 0xd3, 0x32, | 213 | 0x68, 0xf2, 0x4e, 0xc2, 0x60, 0x74, 0x3e, 0xdc, |
| 222 | 0x68, 0xf2, 0x4e, 0xc2, 0x60, 0x74, 0x3e, 0xdc, | 214 | 0xe1, 0xc6, 0xc7, 0xdd, 0xee, 0x72, 0x5a, 0x93, |
| 223 | 0xe1, 0xc6, 0xc7, 0xdd, 0xee, 0x72, 0x5a, 0x93, | 215 | 0x6b, 0xa8, 0x14, 0x91, 0x5c, 0x67, 0x62, 0xd2 |
| 224 | 0x6b, 0xa8, 0x14, 0x91, 0x5c, 0x67, 0x62, 0xd2 | 216 | }; |
| 225 | }; | 217 | |
| 226 | 218 | static const unsigned char e5[] = { | |
| 227 | static const unsigned char e5[] = { | 219 | 0xa8, 0xf9, 0xbc, 0x16, 0x12, 0xc6, 0x8b, 0x3f, |
| 228 | 0xa8, 0xf9, 0xbc, 0x16, 0x12, 0xc6, 0x8b, 0x3f, | 220 | 0xf6, 0xe6, 0xf4, 0xfb, 0xe3, 0x0e, 0x71, 0xe4, |
| 229 | 0xf6, 0xe6, 0xf4, 0xfb, 0xe3, 0x0e, 0x71, 0xe4, | 221 | 0x76, 0x9c, 0x8b, 0x80, 0xa3, 0x2c, 0xb8, 0x95, |
| 230 | 0x76, 0x9c, 0x8b, 0x80, 0xa3, 0x2c, 0xb8, 0x95, | 222 | 0x8c, 0xd5, 0xd1, 0x7d, 0x6b, 0x25, 0x4d, 0xa1 |
| 231 | 0x8c, 0xd5, 0xd1, 0x7d, 0x6b, 0x25, 0x4d, 0xa1 | 223 | }; |
| 232 | }; | 224 | |
| 233 | 225 | static const unsigned char e6[] = { | |
| 234 | static const unsigned char e6[] = { | 226 | 0x28, 0xc9, 0xf4, 0x04, 0xc4, 0xb8, 0x10, 0xf4, |
| 235 | 0x28, 0xc9, 0xf4, 0x04, 0xc4, 0xb8, 0x10, 0xf4, | 227 | 0xcb, 0xcc, 0xb3, 0x5c, 0xfb, 0x87, 0xf8, 0x26, |
| 236 | 0xcb, 0xcc, 0xb3, 0x5c, 0xfb, 0x87, 0xf8, 0x26, | 228 | 0x3f, 0x57, 0x86, 0xe2, 0xd8, 0x0e, 0xd3, 0x26, |
| 237 | 0x3f, 0x57, 0x86, 0xe2, 0xd8, 0x0e, 0xd3, 0x26, | 229 | 0xcb, 0xc7, 0xf0, 0xe7, 0x1a, 0x99, 0xf4, 0x3b, |
| 238 | 0xcb, 0xc7, 0xf0, 0xe7, 0x1a, 0x99, 0xf4, 0x3b, | 230 | 0xfb, 0x98, 0x8b, 0x9b, 0x7a, 0x02, 0xdd, 0x21 |
| 239 | 0xfb, 0x98, 0x8b, 0x9b, 0x7a, 0x02, 0xdd, 0x21 | 231 | }; |
| 240 | }; | ||
| 241 | 232 | ||
| 242 | AES_KEY wctx, xctx; | 233 | AES_KEY wctx, xctx; |
| 243 | int ret; | 234 | int ret; |
| @@ -254,6 +245,5 @@ static const unsigned char e6[] = { | |||
| 254 | ret = AES_wrap_unwrap_test(kek, 256, NULL, e6, key, 32); | 245 | ret = AES_wrap_unwrap_test(kek, 256, NULL, e6, key, 32); |
| 255 | fprintf(stderr, "Key test result %d\n", ret); | 246 | fprintf(stderr, "Key test result %d\n", ret); |
| 256 | } | 247 | } |
| 257 | 248 | ||
| 258 | |||
| 259 | #endif | 249 | #endif |
