*
*/
+#include <openssl/opensslconf.h>
#ifndef OPENSSL_NO_AES
#include <openssl/evp.h>
#include <openssl/err.h>
#define data(ctx) EVP_C_DATA(EVP_AES_KEY,ctx)
-#define IMPLEMENT_BLOCK_CIPHER_def_ecb_cbc(cname, ksched, cprefix, kstruct, \
- nid, block_size, key_len, iv_len, flags, \
- init_key, cleanup, set_asn1, get_asn1, ctrl) \
-BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
-BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
-BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
- init_key, cleanup, set_asn1, get_asn1, ctrl) \
-BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, 0, flags, \
- init_key, cleanup, set_asn1, get_asn1, ctrl)
+IMPLEMENT_BLOCK_CIPHER(aes_128, ks, AES, EVP_AES_KEY,
+ NID_aes_128, 16, 16, 16, 128,
+ 0, aes_init_key, NULL,
+ EVP_CIPHER_set_asn1_iv,
+ EVP_CIPHER_get_asn1_iv,
+ NULL)
+IMPLEMENT_BLOCK_CIPHER(aes_192, ks, AES, EVP_AES_KEY,
+ NID_aes_192, 16, 24, 16, 128,
+ 0, aes_init_key, NULL,
+ EVP_CIPHER_set_asn1_iv,
+ EVP_CIPHER_get_asn1_iv,
+ NULL)
+IMPLEMENT_BLOCK_CIPHER(aes_256, ks, AES, EVP_AES_KEY,
+ NID_aes_256, 16, 32, 16, 128,
+ 0, aes_init_key, NULL,
+ EVP_CIPHER_set_asn1_iv,
+ EVP_CIPHER_get_asn1_iv,
+ NULL)
-IMPLEMENT_BLOCK_CIPHER_def_ecb_cbc(aes_128, ks, AES, EVP_AES_KEY,
- NID_aes_128, 16, 16, 16,
- 0, aes_init_key, NULL,
- EVP_CIPHER_set_asn1_iv,
- EVP_CIPHER_get_asn1_iv,
- NULL)
-IMPLEMENT_BLOCK_CIPHER_def_ecb_cbc(aes_192, ks, AES, EVP_AES_KEY,
- NID_aes_192, 16, 24, 16,
- 0, aes_init_key, NULL,
- EVP_CIPHER_set_asn1_iv,
- EVP_CIPHER_get_asn1_iv,
- NULL)
-IMPLEMENT_BLOCK_CIPHER_def_ecb_cbc(aes_256, ks, AES, EVP_AES_KEY,
- NID_aes_256, 16, 32, 16,
- 0, aes_init_key, NULL,
- EVP_CIPHER_set_asn1_iv,
- EVP_CIPHER_get_asn1_iv,
- NULL)
+#define IMPLEMENT_AES_CFBR(ksize,cbits) IMPLEMENT_CFBR(aes,AES,EVP_AES_KEY,ks,ksize,cbits,16)
+
+IMPLEMENT_AES_CFBR(128,1)
+IMPLEMENT_AES_CFBR(192,1)
+IMPLEMENT_AES_CFBR(256,1)
+
+IMPLEMENT_AES_CFBR(128,8)
+IMPLEMENT_AES_CFBR(192,8)
+IMPLEMENT_AES_CFBR(256,8)
static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv, int enc) {
+ const unsigned char *iv, int enc)
+ {
+ int ret;
- if (enc)
- AES_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
+ if ((ctx->cipher->flags & EVP_CIPH_MODE) == EVP_CIPH_CFB_MODE
+ || (ctx->cipher->flags & EVP_CIPH_MODE) == EVP_CIPH_OFB_MODE
+ || enc)
+ ret=AES_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
else
- AES_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
+ ret=AES_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
+
+ if(ret < 0)
+ {
+ EVPerr(EVP_F_AES_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
+ return 0;
+ }
return 1;
-}
+ }
#endif