/*
- * Copyright 2018 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
#include <openssl/core_dispatch.h>
#include <openssl/core_names.h>
#include <openssl/params.h>
+#include <openssl/proverr.h>
#include "prov/blake2.h"
#include "internal/cryptlib.h"
-#include "prov/providercommonerr.h"
#include "prov/implementations.h"
+#include "prov/providercommon.h"
/*
* Forward declaration of everything implemented here. This is not strictly
* necessary for the compiler, but provides an assurance that the signatures
* of the functions in the dispatch table are correct.
*/
-static OSSL_OP_mac_newctx_fn blake2_mac_new;
-static OSSL_OP_mac_dupctx_fn blake2_mac_dup;
-static OSSL_OP_mac_freectx_fn blake2_mac_free;
-static OSSL_OP_mac_gettable_ctx_params_fn blake2_gettable_ctx_params;
-static OSSL_OP_mac_get_ctx_params_fn blake2_get_ctx_params;
-static OSSL_OP_mac_settable_ctx_params_fn blake2_mac_settable_ctx_params;
-static OSSL_OP_mac_set_ctx_params_fn blake2_mac_set_ctx_params;
-static OSSL_OP_mac_init_fn blake2_mac_init;
-static OSSL_OP_mac_update_fn blake2_mac_update;
-static OSSL_OP_mac_final_fn blake2_mac_final;
+static OSSL_FUNC_mac_newctx_fn blake2_mac_new;
+static OSSL_FUNC_mac_dupctx_fn blake2_mac_dup;
+static OSSL_FUNC_mac_freectx_fn blake2_mac_free;
+static OSSL_FUNC_mac_gettable_ctx_params_fn blake2_gettable_ctx_params;
+static OSSL_FUNC_mac_get_ctx_params_fn blake2_get_ctx_params;
+static OSSL_FUNC_mac_settable_ctx_params_fn blake2_mac_settable_ctx_params;
+static OSSL_FUNC_mac_set_ctx_params_fn blake2_mac_set_ctx_params;
+static OSSL_FUNC_mac_init_fn blake2_mac_init;
+static OSSL_FUNC_mac_update_fn blake2_mac_update;
+static OSSL_FUNC_mac_final_fn blake2_mac_final;
struct blake2_mac_data_st {
BLAKE2_CTX ctx;
unsigned char key[BLAKE2_KEYBYTES];
};
-static size_t blake2_mac_size(void *vmacctx);
-
static void *blake2_mac_new(void *unused_provctx)
{
- struct blake2_mac_data_st *macctx = OPENSSL_zalloc(sizeof(*macctx));
+ struct blake2_mac_data_st *macctx;
+
+ if (!ossl_prov_is_running())
+ return NULL;
+ macctx = OPENSSL_zalloc(sizeof(*macctx));
if (macctx != NULL) {
BLAKE2_PARAM_INIT(&macctx->params);
/* ctx initialization is deferred to BLAKE2b_Init() */
struct blake2_mac_data_st *dst;
struct blake2_mac_data_st *src = vsrc;
+ if (!ossl_prov_is_running())
+ return NULL;
+
dst = OPENSSL_zalloc(sizeof(*dst));
if (dst == NULL)
return NULL;
}
}
-static int blake2_mac_init(void *vmacctx)
+static size_t blake2_mac_size(void *vmacctx)
{
struct blake2_mac_data_st *macctx = vmacctx;
- /* Check key has been set */
- if (macctx->params.key_length == 0) {
- ERR_raise(ERR_LIB_PROV, PROV_R_NO_KEY_SET);
+ return macctx->params.digest_length;
+}
+
+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() || !blake2_mac_set_ctx_params(macctx, params))
+ return 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);
}
{
struct blake2_mac_data_st *macctx = vmacctx;
+ if (datalen == 0)
+ return 1;
+
return BLAKE2_UPDATE(&macctx->ctx, data, datalen);
}
{
struct blake2_mac_data_st *macctx = vmacctx;
+ if (!ossl_prov_is_running())
+ return 0;
+
+ *outl = blake2_mac_size(macctx);
return BLAKE2_FINAL(out, &macctx->ctx);
}
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(void)
+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()
+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) {
return 1;
}
-static size_t blake2_mac_size(void *vmacctx)
-{
- struct blake2_mac_data_st *macctx = vmacctx;
-
- return macctx->params.digest_length;
-}
-
const OSSL_DISPATCH BLAKE2_FUNCTIONS[] = {
{ OSSL_FUNC_MAC_NEWCTX, (void (*)(void))blake2_mac_new },
{ OSSL_FUNC_MAC_DUPCTX, (void (*)(void))blake2_mac_dup },
{ 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
};