#include <openssl/evp.h>
#include <openssl/params.h>
#include "internal/cryptlib.h"
+#include "internal/provider_algs.h"
#include "ciphers_locl.h"
static void PROV_AES_KEY_generic_init(PROV_AES_KEY *ctx,
return 1;
}
-static void *aes_256_ecb_newctx(void)
+static int aes_cipher(void *vctx, unsigned char *out, const unsigned char *in,
+ size_t inl)
{
- PROV_AES_KEY *ctx = OPENSSL_zalloc(sizeof(*ctx));
+ PROV_AES_KEY *ctx = (PROV_AES_KEY *)vctx;
+
+ if (!ctx->ciph->cipher(ctx, out, in, inl))
+ return 0;
- ctx->pad = 1;
- ctx->keylen = 256 / 8;
- ctx->ciph = PROV_AES_CIPHER_ecb();
- ctx->mode = EVP_CIPH_ECB_MODE;
- return ctx;
+ return 1;
}
+#define IMPLEMENT_new_params(lcmode, UCMODE) \
+ static int aes_##lcmode##_get_params(const OSSL_PARAM params[]) \
+ { \
+ const OSSL_PARAM *p; \
+ \
+ p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_MODE); \
+ if (p != NULL && !OSSL_PARAM_set_int(p, EVP_CIPH_##UCMODE##_MODE)) \
+ return 0; \
+ \
+ return 1; \
+ }
+
+#define IMPLEMENT_new_ctx(lcmode, UCMODE, len) \
+ static void *aes_##len##_##lcmode##_newctx(void) \
+ { \
+ PROV_AES_KEY *ctx = OPENSSL_zalloc(sizeof(*ctx)); \
+ \
+ ctx->pad = 1; \
+ ctx->keylen = (len / 8); \
+ ctx->ciph = PROV_AES_CIPHER_##lcmode(); \
+ ctx->mode = EVP_CIPH_##UCMODE##_MODE; \
+ return ctx; \
+ }
+
+/* ECB */
+IMPLEMENT_new_params(ecb, ECB)
+IMPLEMENT_new_ctx(ecb, ECB, 256)
+IMPLEMENT_new_ctx(ecb, ECB, 192)
+IMPLEMENT_new_ctx(ecb, ECB, 128)
+
+/* CBC */
+IMPLEMENT_new_params(cbc, CBC)
+IMPLEMENT_new_ctx(cbc, CBC, 256)
+IMPLEMENT_new_ctx(cbc, CBC, 192)
+IMPLEMENT_new_ctx(cbc, CBC, 128)
+
static void aes_freectx(void *vctx)
{
PROV_AES_KEY *ctx = (PROV_AES_KEY *)vctx;
return 256 / 8;
}
-static int aes_get_params(void *vctx, const OSSL_PARAM params[])
+static size_t key_length_192(void)
+{
+ return 192 / 8;
+}
+
+static size_t key_length_128(void)
+{
+ return 128 / 8;
+}
+
+static size_t iv_length_16(void)
+{
+ return 16;
+}
+
+static size_t iv_length_0(void)
+{
+ return 0;
+}
+
+static size_t block_size_16(void)
+{
+ return 16;
+}
+
+static int aes_ctx_get_params(void *vctx, const OSSL_PARAM params[])
{
PROV_AES_KEY *ctx = (PROV_AES_KEY *)vctx;
const OSSL_PARAM *p;
return 1;
}
-static int aes_set_params(void *vctx, const OSSL_PARAM params[])
+static int aes_ctx_set_params(void *vctx, const OSSL_PARAM params[])
{
PROV_AES_KEY *ctx = (PROV_AES_KEY *)vctx;
const OSSL_PARAM *p;
return 1;
}
-extern const OSSL_DISPATCH aes256ecb_functions[];
-const OSSL_DISPATCH aes256ecb_functions[] = {
- { OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))aes_256_ecb_newctx },
- { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))aes_einit },
- { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))aes_dinit },
- { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))aes_update },
- { OSSL_FUNC_CIPHER_FINAL, (void (*)(void))aes_final },
- { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))aes_freectx },
- { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))aes_dupctx },
- { OSSL_FUNC_CIPHER_KEY_LENGTH, (void (*)(void))key_length_256 },
- { OSSL_FUNC_CIPHER_GET_PARAMS, (void (*)(void))aes_get_params },
- { OSSL_FUNC_CIPHER_SET_PARAMS, (void (*)(void))aes_set_params },
- { 0, NULL }
-};
+#define IMPLEMENT_funcs(mode, keylen, ivlen, blksz) \
+ const OSSL_DISPATCH aes##keylen##mode##_functions[] = { \
+ { OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))aes_##keylen##_##mode##_newctx }, \
+ { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))aes_einit }, \
+ { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))aes_dinit }, \
+ { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))aes_update }, \
+ { OSSL_FUNC_CIPHER_FINAL, (void (*)(void))aes_final }, \
+ { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))aes_cipher }, \
+ { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))aes_freectx }, \
+ { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))aes_dupctx }, \
+ { OSSL_FUNC_CIPHER_KEY_LENGTH, (void (*)(void))key_length_##keylen }, \
+ { OSSL_FUNC_CIPHER_IV_LENGTH, (void (*)(void))iv_length_##ivlen }, \
+ { OSSL_FUNC_CIPHER_BLOCK_SIZE, (void (*)(void))block_size_##blksz }, \
+ { OSSL_FUNC_CIPHER_GET_PARAMS, (void (*)(void))aes_##mode##_get_params }, \
+ { OSSL_FUNC_CIPHER_CTX_GET_PARAMS, (void (*)(void))aes_ctx_get_params }, \
+ { OSSL_FUNC_CIPHER_CTX_SET_PARAMS, (void (*)(void))aes_ctx_set_params }, \
+ { 0, NULL } \
+ };
+
+/* ECB */
+
+IMPLEMENT_funcs(ecb, 256, 0, 16)
+IMPLEMENT_funcs(ecb, 192, 0, 16)
+IMPLEMENT_funcs(ecb, 128, 0, 16)
+
+/* CBC */
+
+IMPLEMENT_funcs(cbc, 256, 16, 16)
+IMPLEMENT_funcs(cbc, 192, 16, 16)
+IMPLEMENT_funcs(cbc, 128, 16, 16)