/*
- * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2018-2021 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * 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/evp.h>
#include <openssl/core_names.h>
#include <openssl/params.h>
-#include "internal/modes_int.h"
-#include "internal/siv_int.h"
+#include "internal/endian.h"
+#include "crypto/modes.h"
+#include "crypto/siv.h"
#ifndef OPENSSL_NO_SIV
__owur static ossl_inline uint64_t siv128_getword(SIV_BLOCK const *b, size_t i)
{
- const union {
- long one;
- char little;
- } is_endian = { 1 };
+ DECLARE_IS_ENDIAN;
- if (is_endian.little)
+ if (IS_LITTLE_ENDIAN)
return byteswap8(b->word[i]);
return b->word[i];
}
static ossl_inline void siv128_putword(SIV_BLOCK *b, size_t i, uint64_t x)
{
- const union {
- long one;
- char little;
- } is_endian = { 1 };
+ DECLARE_IS_ENDIAN;
- if (is_endian.little)
+ if (IS_LITTLE_ENDIAN)
b->word[i] = byteswap8(x);
else
b->word[i] = x;
/*
* Create a new SIV128_CONTEXT
*/
-SIV128_CONTEXT *CRYPTO_siv128_new(const unsigned char *key, int klen, EVP_CIPHER* cbc, EVP_CIPHER* ctr)
+SIV128_CONTEXT *ossl_siv128_new(const unsigned char *key, int klen,
+ EVP_CIPHER *cbc, EVP_CIPHER *ctr,
+ OSSL_LIB_CTX *libctx, const char *propq)
{
SIV128_CONTEXT *ctx;
int ret;
if ((ctx = OPENSSL_malloc(sizeof(*ctx))) != NULL) {
- ret = CRYPTO_siv128_init(ctx, key, klen, cbc, ctr);
+ ret = ossl_siv128_init(ctx, key, klen, cbc, ctr, libctx, propq);
if (ret)
return ctx;
OPENSSL_free(ctx);
/*
* Initialise an existing SIV128_CONTEXT
*/
-int CRYPTO_siv128_init(SIV128_CONTEXT *ctx, const unsigned char *key, int klen,
- const EVP_CIPHER* cbc, const EVP_CIPHER* ctr)
+int ossl_siv128_init(SIV128_CONTEXT *ctx, const unsigned char *key, int klen,
+ const EVP_CIPHER *cbc, const EVP_CIPHER *ctr,
+ OSSL_LIB_CTX *libctx, const char *propq)
{
static const unsigned char zero[SIV_LEN] = { 0 };
size_t out_len = SIV_LEN;
EVP_MAC_CTX *mac_ctx = NULL;
OSSL_PARAM params[3];
- const char *cbc_name = EVP_CIPHER_name(cbc);
+ const char *cbc_name;
- params[0] = OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_CIPHER,
- (char *)cbc_name,
- strlen(cbc_name) + 1);
- params[1] = OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY,
- (void *)key, klen);
- params[2] = OSSL_PARAM_construct_end();
+ if (ctx == NULL)
+ return 0;
memset(&ctx->d, 0, sizeof(ctx->d));
+ EVP_CIPHER_CTX_free(ctx->cipher_ctx);
+ EVP_MAC_CTX_free(ctx->mac_ctx_init);
+ EVP_MAC_free(ctx->mac);
+ ctx->mac = NULL;
ctx->cipher_ctx = NULL;
ctx->mac_ctx_init = NULL;
- if (key == NULL || cbc == NULL || ctr == NULL
- || (ctx->cipher_ctx = EVP_CIPHER_CTX_new()) == NULL
- /* TODO(3.0) library context */
+ if (key == NULL || cbc == NULL || ctr == NULL)
+ return 0;
+
+ cbc_name = EVP_CIPHER_get0_name(cbc);
+ params[0] = OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_CIPHER,
+ (char *)cbc_name, 0);
+ params[1] = OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY,
+ (void *)key, klen);
+ params[2] = OSSL_PARAM_construct_end();
+
+ if ((ctx->cipher_ctx = EVP_CIPHER_CTX_new()) == NULL
|| (ctx->mac =
- EVP_MAC_fetch(NULL, OSSL_MAC_NAME_CMAC, NULL)) == NULL
+ EVP_MAC_fetch(libctx, OSSL_MAC_NAME_CMAC, propq)) == NULL
|| (ctx->mac_ctx_init = EVP_MAC_CTX_new(ctx->mac)) == NULL
|| !EVP_MAC_CTX_set_params(ctx->mac_ctx_init, params)
|| !EVP_EncryptInit_ex(ctx->cipher_ctx, ctr, NULL, key + klen, NULL)
/*
* Copy an SIV128_CONTEXT object
*/
-int CRYPTO_siv128_copy_ctx(SIV128_CONTEXT *dest, SIV128_CONTEXT *src)
+int ossl_siv128_copy_ctx(SIV128_CONTEXT *dest, SIV128_CONTEXT *src)
{
memcpy(&dest->d, &src->d, sizeof(src->d));
+ if (dest->cipher_ctx == NULL) {
+ dest->cipher_ctx = EVP_CIPHER_CTX_new();
+ if (dest->cipher_ctx == NULL)
+ return 0;
+ }
if (!EVP_CIPHER_CTX_copy(dest->cipher_ctx, src->cipher_ctx))
return 0;
EVP_MAC_CTX_free(dest->mac_ctx_init);
dest->mac_ctx_init = EVP_MAC_CTX_dup(src->mac_ctx_init);
if (dest->mac_ctx_init == NULL)
return 0;
+ dest->mac = src->mac;
+ if (dest->mac != NULL)
+ EVP_MAC_up_ref(dest->mac);
return 1;
}
* Per RFC5297, the last piece of associated data
* is the nonce, but it's not treated special
*/
-int CRYPTO_siv128_aad(SIV128_CONTEXT *ctx, const unsigned char *aad,
+int ossl_siv128_aad(SIV128_CONTEXT *ctx, const unsigned char *aad,
size_t len)
{
SIV_BLOCK mac_out;
/*
* Provide any data to be encrypted. This can be called once.
*/
-int CRYPTO_siv128_encrypt(SIV128_CONTEXT *ctx,
+int ossl_siv128_encrypt(SIV128_CONTEXT *ctx,
const unsigned char *in, unsigned char *out,
size_t len)
{
/*
* Provide any data to be decrypted. This can be called once.
*/
-int CRYPTO_siv128_decrypt(SIV128_CONTEXT *ctx,
+int ossl_siv128_decrypt(SIV128_CONTEXT *ctx,
const unsigned char *in, unsigned char *out,
size_t len)
{
/*
* Return the already calculated final result.
*/
-int CRYPTO_siv128_finish(SIV128_CONTEXT *ctx)
+int ossl_siv128_finish(SIV128_CONTEXT *ctx)
{
return ctx->final_ret;
}
/*
* Set the tag
*/
-int CRYPTO_siv128_set_tag(SIV128_CONTEXT *ctx, const unsigned char *tag, size_t len)
+int ossl_siv128_set_tag(SIV128_CONTEXT *ctx, const unsigned char *tag, size_t len)
{
if (len != SIV_LEN)
return 0;
/*
* Retrieve the calculated tag
*/
-int CRYPTO_siv128_get_tag(SIV128_CONTEXT *ctx, unsigned char *tag, size_t len)
+int ossl_siv128_get_tag(SIV128_CONTEXT *ctx, unsigned char *tag, size_t len)
{
if (len != SIV_LEN)
return 0;
/*
* Release all resources
*/
-int CRYPTO_siv128_cleanup(SIV128_CONTEXT *ctx)
+int ossl_siv128_cleanup(SIV128_CONTEXT *ctx)
{
if (ctx != NULL) {
EVP_CIPHER_CTX_free(ctx->cipher_ctx);
return 1;
}
-int CRYPTO_siv128_speed(SIV128_CONTEXT *ctx, int arg)
+int ossl_siv128_speed(SIV128_CONTEXT *ctx, int arg)
{
ctx->crypto_ok = (arg == 1) ? -1 : 1;
return 1;
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