diff options
Diffstat (limited to 'contrib/wpa_supplicant/crypto.c')
| -rw-r--r-- | contrib/wpa_supplicant/crypto.c | 109 |
1 files changed, 96 insertions, 13 deletions
diff --git a/contrib/wpa_supplicant/crypto.c b/contrib/wpa_supplicant/crypto.c index cd278e0..b4c8189 100644 --- a/contrib/wpa_supplicant/crypto.c +++ b/contrib/wpa_supplicant/crypto.c @@ -12,11 +12,17 @@ * See README and COPYING for more details. */ +#include <string.h> +#include <sys/types.h> + #include <openssl/md4.h> +#include <openssl/md5.h> +#include <openssl/sha.h> #include <openssl/des.h> +#include <openssl/aes.h> #include "common.h" - +#include "crypto.h" #if OPENSSL_VERSION_NUMBER < 0x00907000 #define DES_key_schedule des_key_schedule @@ -27,7 +33,7 @@ #endif /* openssl < 0.9.7 */ -void md4_vector(size_t num_elem, const u8 *addr[], size_t *len, u8 *mac) +void md4_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac) { MD4_CTX ctx; int i; @@ -39,17 +45,6 @@ void md4_vector(size_t num_elem, const u8 *addr[], size_t *len, u8 *mac) } -void md4(const u8 *addr, size_t len, u8 *mac) -{ - md4_vector(1, &addr, &len, mac); -} - - -/** - * @clear: 8 octets (in) - * @key: 7 octets (in) (no parity bits included) - * @cypher: 8 octets (out) - */ void des_encrypt(const u8 *clear, const u8 *key, u8 *cypher) { u8 pkey[8], next, tmp; @@ -69,3 +64,91 @@ void des_encrypt(const u8 *clear, const u8 *key, u8 *cypher) DES_ecb_encrypt((DES_cblock *) clear, (DES_cblock *) cypher, &ks, DES_ENCRYPT); } + + +#ifdef EAP_TLS_FUNCS +void md5_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac) +{ + MD5_CTX ctx; + int i; + + MD5_Init(&ctx); + for (i = 0; i < num_elem; i++) + MD5_Update(&ctx, addr[i], len[i]); + MD5_Final(mac, &ctx); +} + + +void sha1_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac) +{ + SHA_CTX ctx; + int i; + + SHA1_Init(&ctx); + for (i = 0; i < num_elem; i++) + SHA1_Update(&ctx, addr[i], len[i]); + SHA1_Final(mac, &ctx); +} + + +void sha1_transform(u8 *state, const u8 data[64]) +{ + SHA_CTX context; + memset(&context, 0, sizeof(context)); + memcpy(&context.h0, state, 5 * 4); + SHA1_Transform(&context, data); + memcpy(state, &context.h0, 5 * 4); +} + + +void * aes_encrypt_init(const u8 *key, size_t len) +{ + AES_KEY *ak; + ak = malloc(sizeof(*ak)); + if (ak == NULL) + return NULL; + if (AES_set_encrypt_key(key, 8 * len, ak) < 0) { + free(ak); + return NULL; + } + return ak; +} + + +void aes_encrypt(void *ctx, const u8 *plain, u8 *crypt) +{ + AES_encrypt(plain, crypt, ctx); +} + + +void aes_encrypt_deinit(void *ctx) +{ + free(ctx); +} + + +void * aes_decrypt_init(const u8 *key, size_t len) +{ + AES_KEY *ak; + ak = malloc(sizeof(*ak)); + if (ak == NULL) + return NULL; + if (AES_set_decrypt_key(key, 8 * len, ak) < 0) { + free(ak); + return NULL; + } + return ak; +} + + +void aes_decrypt(void *ctx, const u8 *crypt, u8 *plain) +{ + AES_decrypt(crypt, plain, ctx); +} + + +void aes_decrypt_deinit(void *ctx) +{ + free(ctx); +} +#endif /* EAP_TLS_FUNCS */ |
