/*
- * Copyright 2018-2021 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2018-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
return macctx->params.digest_length;
}
-static int blake2_mac_init(void *vmacctx)
+static int blake2_setkey(struct blake2_mac_data_st *macctx,
+ const unsigned char *key, size_t keylen)
+{
+ if (keylen > BLAKE2_KEYBYTES || keylen == 0) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
+ return 0;
+ }
+ memcpy(macctx->key, key, keylen);
+ /* Pad with zeroes at the end if required */
+ if (keylen < BLAKE2_KEYBYTES)
+ memset(macctx->key + keylen, 0, BLAKE2_KEYBYTES - keylen);
+ BLAKE2_PARAM_SET_KEY_LENGTH(&macctx->params, (uint8_t)keylen);
+ return 1;
+}
+
+static int blake2_mac_init(void *vmacctx, const unsigned char *key,
+ size_t keylen, const OSSL_PARAM params[])
{
struct blake2_mac_data_st *macctx = vmacctx;
- if (!ossl_prov_is_running())
+ if (!ossl_prov_is_running() || !blake2_mac_set_ctx_params(macctx, params))
return 0;
-
- /* Check key has been set */
- if (macctx->params.key_length == 0) {
+ if (key != NULL) {
+ if (!blake2_setkey(macctx, key, keylen))
+ return 0;
+ } else if (macctx->params.key_length == 0) {
+ /* Check key has been set */
ERR_raise(ERR_LIB_PROV, PROV_R_NO_KEY_SET);
return 0;
}
-
return BLAKE2_INIT_KEY(&macctx->ctx, &macctx->params, macctx->key);
}
static const OSSL_PARAM known_gettable_ctx_params[] = {
OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
+ OSSL_PARAM_size_t(OSSL_MAC_PARAM_BLOCK_SIZE, NULL),
OSSL_PARAM_END
};
-static const OSSL_PARAM *blake2_gettable_ctx_params(ossl_unused void *provctx)
+static const OSSL_PARAM *blake2_gettable_ctx_params(ossl_unused void *ctx,
+ ossl_unused void *provctx)
{
return known_gettable_ctx_params;
}
{
OSSL_PARAM *p;
- if ((p = OSSL_PARAM_locate(params, OSSL_MAC_PARAM_SIZE)) != NULL)
- return OSSL_PARAM_set_size_t(p, blake2_mac_size(vmacctx));
+ if ((p = OSSL_PARAM_locate(params, OSSL_MAC_PARAM_SIZE)) != NULL
+ && !OSSL_PARAM_set_size_t(p, blake2_mac_size(vmacctx)))
+ return 0;
+
+ if ((p = OSSL_PARAM_locate(params, OSSL_MAC_PARAM_BLOCK_SIZE)) != NULL
+ && !OSSL_PARAM_set_size_t(p, BLAKE2_BLOCKBYTES))
+ return 0;
return 1;
}
OSSL_PARAM_octet_string(OSSL_MAC_PARAM_SALT, NULL, 0),
OSSL_PARAM_END
};
-static const OSSL_PARAM *blake2_mac_settable_ctx_params(ossl_unused void *p_ctx)
+static const OSSL_PARAM *blake2_mac_settable_ctx_params(
+ ossl_unused void *ctx, ossl_unused void *p_ctx)
{
return known_settable_ctx_params;
}
struct blake2_mac_data_st *macctx = vmacctx;
const OSSL_PARAM *p;
+ if (params == NULL)
+ return 1;
+
if ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_SIZE)) != NULL) {
size_t size;
BLAKE2_PARAM_SET_DIGEST_LENGTH(&macctx->params, (uint8_t)size);
}
- if ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_KEY)) != NULL) {
- size_t len;
- void *key_p = macctx->key;
-
- if (!OSSL_PARAM_get_octet_string(p, &key_p, BLAKE2_KEYBYTES, &len)) {
- ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
- return 0;
- }
- /* Pad with zeroes at the end */
- memset(macctx->key + len, 0, BLAKE2_KEYBYTES - len);
-
- BLAKE2_PARAM_SET_KEY_LENGTH(&macctx->params, (uint8_t)len);
- }
+ if ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_KEY)) != NULL
+ && !blake2_setkey(macctx, p->data, p->data_size))
+ return 0;
if ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_CUSTOM))
!= NULL) {
{ OSSL_FUNC_MAC_SETTABLE_CTX_PARAMS,
(void (*)(void))blake2_mac_settable_ctx_params },
{ OSSL_FUNC_MAC_SET_CTX_PARAMS, (void (*)(void))blake2_mac_set_ctx_params },
- { 0, NULL }
+ OSSL_DISPATCH_END
};