mirror of
https://github.com/openssl/openssl.git
synced 2024-12-15 06:01:37 +08:00
255 lines
7.9 KiB
C
255 lines
7.9 KiB
C
/*
|
|
* 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
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#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/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_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;
|
|
BLAKE2_PARAM params;
|
|
unsigned char key[BLAKE2_KEYBYTES];
|
|
};
|
|
|
|
static void *blake2_mac_new(void *unused_provctx)
|
|
{
|
|
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() */
|
|
}
|
|
return macctx;
|
|
}
|
|
|
|
static void *blake2_mac_dup(void *vsrc)
|
|
{
|
|
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;
|
|
|
|
*dst = *src;
|
|
return dst;
|
|
}
|
|
|
|
static void blake2_mac_free(void *vmacctx)
|
|
{
|
|
struct blake2_mac_data_st *macctx = vmacctx;
|
|
|
|
if (macctx != NULL) {
|
|
OPENSSL_cleanse(macctx->key, sizeof(macctx->key));
|
|
OPENSSL_free(macctx);
|
|
}
|
|
}
|
|
|
|
static size_t blake2_mac_size(void *vmacctx)
|
|
{
|
|
struct blake2_mac_data_st *macctx = vmacctx;
|
|
|
|
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);
|
|
}
|
|
|
|
static int blake2_mac_update(void *vmacctx,
|
|
const unsigned char *data, size_t datalen)
|
|
{
|
|
struct blake2_mac_data_st *macctx = vmacctx;
|
|
|
|
if (datalen == 0)
|
|
return 1;
|
|
|
|
return BLAKE2_UPDATE(&macctx->ctx, data, datalen);
|
|
}
|
|
|
|
static int blake2_mac_final(void *vmacctx,
|
|
unsigned char *out, size_t *outl,
|
|
size_t outsize)
|
|
{
|
|
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(ossl_unused void *ctx,
|
|
ossl_unused void *provctx)
|
|
{
|
|
return known_gettable_ctx_params;
|
|
}
|
|
|
|
static int blake2_get_ctx_params(void *vmacctx, OSSL_PARAM params[])
|
|
{
|
|
OSSL_PARAM *p;
|
|
|
|
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;
|
|
}
|
|
|
|
static const OSSL_PARAM known_settable_ctx_params[] = {
|
|
OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
|
|
OSSL_PARAM_octet_string(OSSL_MAC_PARAM_KEY, NULL, 0),
|
|
OSSL_PARAM_octet_string(OSSL_MAC_PARAM_CUSTOM, NULL, 0),
|
|
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 *ctx, ossl_unused void *p_ctx)
|
|
{
|
|
return known_settable_ctx_params;
|
|
}
|
|
|
|
/*
|
|
* ALL parameters should be set before init().
|
|
*/
|
|
static int blake2_mac_set_ctx_params(void *vmacctx, const OSSL_PARAM 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;
|
|
|
|
if (!OSSL_PARAM_get_size_t(p, &size)
|
|
|| size < 1
|
|
|| size > BLAKE2_OUTBYTES) {
|
|
ERR_raise(ERR_LIB_PROV, PROV_R_NOT_XOF_OR_INVALID_LENGTH);
|
|
return 0;
|
|
}
|
|
BLAKE2_PARAM_SET_DIGEST_LENGTH(&macctx->params, (uint8_t)size);
|
|
}
|
|
|
|
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) {
|
|
/*
|
|
* The OSSL_PARAM API doesn't provide direct pointer use, so we
|
|
* must handle the OSSL_PARAM structure ourselves here
|
|
*/
|
|
if (p->data_size > BLAKE2_PERSONALBYTES) {
|
|
ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CUSTOM_LENGTH);
|
|
return 0;
|
|
}
|
|
BLAKE2_PARAM_SET_PERSONAL(&macctx->params, p->data, p->data_size);
|
|
}
|
|
|
|
if ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_SALT)) != NULL) {
|
|
/*
|
|
* The OSSL_PARAM API doesn't provide direct pointer use, so we
|
|
* must handle the OSSL_PARAM structure ourselves here as well
|
|
*/
|
|
if (p->data_size > BLAKE2_SALTBYTES) {
|
|
ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_SALT_LENGTH);
|
|
return 0;
|
|
}
|
|
BLAKE2_PARAM_SET_SALT(&macctx->params, p->data, p->data_size);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
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_FREECTX, (void (*)(void))blake2_mac_free },
|
|
{ OSSL_FUNC_MAC_INIT, (void (*)(void))blake2_mac_init },
|
|
{ OSSL_FUNC_MAC_UPDATE, (void (*)(void))blake2_mac_update },
|
|
{ OSSL_FUNC_MAC_FINAL, (void (*)(void))blake2_mac_final },
|
|
{ OSSL_FUNC_MAC_GETTABLE_CTX_PARAMS,
|
|
(void (*)(void))blake2_gettable_ctx_params },
|
|
{ OSSL_FUNC_MAC_GET_CTX_PARAMS, (void (*)(void))blake2_get_ctx_params },
|
|
{ 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 },
|
|
OSSL_DISPATCH_END
|
|
};
|