/*
- * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2019-2023 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
/* Dispatch functions for chacha20 cipher */
+#include <openssl/proverr.h>
#include "cipher_chacha20.h"
#include "prov/implementations.h"
-#include "prov/providercommonerr.h"
+#include "prov/providercommon.h"
#define CHACHA20_KEYLEN (CHACHA_KEY_SIZE)
#define CHACHA20_BLKLEN (1)
#define CHACHA20_IVLEN (CHACHA_CTR_SIZE)
-/* TODO(3.0) Figure out what flags are required */
-#define CHACHA20_FLAGS (EVP_CIPH_CUSTOM_IV | EVP_CIPH_ALWAYS_CALL_INIT)
+#define CHACHA20_FLAGS (PROV_CIPHER_FLAG_CUSTOM_IV)
static OSSL_FUNC_cipher_newctx_fn chacha20_newctx;
static OSSL_FUNC_cipher_freectx_fn chacha20_freectx;
+static OSSL_FUNC_cipher_dupctx_fn chacha20_dupctx;
static OSSL_FUNC_cipher_get_params_fn chacha20_get_params;
static OSSL_FUNC_cipher_get_ctx_params_fn chacha20_get_ctx_params;
static OSSL_FUNC_cipher_set_ctx_params_fn chacha20_set_ctx_params;
static OSSL_FUNC_cipher_gettable_ctx_params_fn chacha20_gettable_ctx_params;
static OSSL_FUNC_cipher_settable_ctx_params_fn chacha20_settable_ctx_params;
-#define chacha20_cipher cipher_generic_cipher
-#define chacha20_update cipher_generic_stream_update
-#define chacha20_final cipher_generic_stream_final
-#define chacha20_gettable_params cipher_generic_gettable_params
+#define chacha20_cipher ossl_cipher_generic_cipher
+#define chacha20_update ossl_cipher_generic_stream_update
+#define chacha20_final ossl_cipher_generic_stream_final
+#define chacha20_gettable_params ossl_cipher_generic_gettable_params
-void chacha20_initctx(PROV_CHACHA20_CTX *ctx)
+void ossl_chacha20_initctx(PROV_CHACHA20_CTX *ctx)
{
- cipher_generic_initkey(ctx, CHACHA20_KEYLEN * 8,
- CHACHA20_BLKLEN * 8,
- CHACHA20_IVLEN * 8,
- 0, CHACHA20_FLAGS,
- PROV_CIPHER_HW_chacha20(CHACHA20_KEYLEN * 8),
- NULL);
+ ossl_cipher_generic_initkey(ctx, CHACHA20_KEYLEN * 8,
+ CHACHA20_BLKLEN * 8,
+ CHACHA20_IVLEN * 8,
+ 0, CHACHA20_FLAGS,
+ ossl_prov_cipher_hw_chacha20(CHACHA20_KEYLEN * 8),
+ NULL);
}
static void *chacha20_newctx(void *provctx)
{
- PROV_CHACHA20_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
+ PROV_CHACHA20_CTX *ctx;
- if (ctx != NULL)
- chacha20_initctx(ctx);
- return ctx;
+ if (!ossl_prov_is_running())
+ return NULL;
+
+ ctx = OPENSSL_zalloc(sizeof(*ctx));
+ if (ctx != NULL)
+ ossl_chacha20_initctx(ctx);
+ return ctx;
}
static void chacha20_freectx(void *vctx)
PROV_CHACHA20_CTX *ctx = (PROV_CHACHA20_CTX *)vctx;
if (ctx != NULL) {
- cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
+ ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
OPENSSL_clear_free(ctx, sizeof(*ctx));
}
}
+static void *chacha20_dupctx(void *vctx)
+{
+ PROV_CHACHA20_CTX *ctx = (PROV_CHACHA20_CTX *)vctx;
+ PROV_CHACHA20_CTX *dupctx = NULL;
+
+ if (ctx != NULL) {
+ dupctx = OPENSSL_memdup(ctx, sizeof(*dupctx));
+ if (dupctx != NULL && dupctx->base.tlsmac != NULL && dupctx->base.alloced) {
+ dupctx->base.tlsmac = OPENSSL_memdup(dupctx->base.tlsmac,
+ dupctx->base.tlsmacsize);
+ if (dupctx->base.tlsmac == NULL) {
+ OPENSSL_free(dupctx);
+ dupctx = NULL;
+ }
+ }
+ }
+ return dupctx;
+}
+
static int chacha20_get_params(OSSL_PARAM params[])
{
- return cipher_generic_get_params(params, 0, CHACHA20_FLAGS,
- CHACHA20_KEYLEN * 8,
- CHACHA20_BLKLEN * 8,
- CHACHA20_IVLEN * 8);
+ return ossl_cipher_generic_get_params(params, 0, CHACHA20_FLAGS,
+ CHACHA20_KEYLEN * 8,
+ CHACHA20_BLKLEN * 8,
+ CHACHA20_IVLEN * 8);
}
static int chacha20_get_ctx_params(void *vctx, OSSL_PARAM params[])
OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
OSSL_PARAM_END
};
-const OSSL_PARAM *chacha20_gettable_ctx_params(void)
+const OSSL_PARAM *chacha20_gettable_ctx_params(ossl_unused void *cctx,
+ ossl_unused void *provctx)
{
return chacha20_known_gettable_ctx_params;
}
const OSSL_PARAM *p;
size_t len;
+ if (params == NULL)
+ return 1;
+
p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_KEYLEN);
if (p != NULL) {
if (!OSSL_PARAM_get_size_t(p, &len)) {
OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
OSSL_PARAM_END
};
-const OSSL_PARAM *chacha20_settable_ctx_params(void)
+const OSSL_PARAM *chacha20_settable_ctx_params(ossl_unused void *cctx,
+ ossl_unused void *provctx)
{
return chacha20_known_settable_ctx_params;
}
-int chacha20_einit(void *vctx, const unsigned char *key, size_t keylen,
- const unsigned char *iv, size_t ivlen)
+int ossl_chacha20_einit(void *vctx, const unsigned char *key, size_t keylen,
+ const unsigned char *iv, size_t ivlen,
+ const OSSL_PARAM params[])
{
int ret;
- ret= cipher_generic_einit(vctx, key, keylen, iv, ivlen);
+ /* The generic function checks for ossl_prov_is_running() */
+ ret = ossl_cipher_generic_einit(vctx, key, keylen, iv, ivlen, NULL);
if (ret && iv != NULL) {
PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
PROV_CIPHER_HW_CHACHA20 *hw = (PROV_CIPHER_HW_CHACHA20 *)ctx->hw;
hw->initiv(ctx);
}
+ if (ret && !chacha20_set_ctx_params(vctx, params))
+ ret = 0;
return ret;
}
-int chacha20_dinit(void *vctx, const unsigned char *key, size_t keylen,
- const unsigned char *iv, size_t ivlen)
+int ossl_chacha20_dinit(void *vctx, const unsigned char *key, size_t keylen,
+ const unsigned char *iv, size_t ivlen,
+ const OSSL_PARAM params[])
{
int ret;
- ret= cipher_generic_dinit(vctx, key, keylen, iv, ivlen);
+ /* The generic function checks for ossl_prov_is_running() */
+ ret = ossl_cipher_generic_dinit(vctx, key, keylen, iv, ivlen, NULL);
if (ret && iv != NULL) {
PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
PROV_CIPHER_HW_CHACHA20 *hw = (PROV_CIPHER_HW_CHACHA20 *)ctx->hw;
hw->initiv(ctx);
}
+ if (ret && !chacha20_set_ctx_params(vctx, params))
+ ret = 0;
return ret;
}
-/* chacha20_functions */
-const OSSL_DISPATCH chacha20_functions[] = {
+/* ossl_chacha20_functions */
+const OSSL_DISPATCH ossl_chacha20_functions[] = {
{ OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))chacha20_newctx },
{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))chacha20_freectx },
- { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))chacha20_einit },
- { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))chacha20_dinit },
+ { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))chacha20_dupctx },
+ { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))ossl_chacha20_einit },
+ { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))ossl_chacha20_dinit },
{ OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))chacha20_update },
{ OSSL_FUNC_CIPHER_FINAL, (void (*)(void))chacha20_final },
{ OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))chacha20_cipher},
{ OSSL_FUNC_CIPHER_GET_PARAMS, (void (*)(void))chacha20_get_params },
- { OSSL_FUNC_CIPHER_GETTABLE_PARAMS,(void (*)(void))chacha20_gettable_params },
+ { OSSL_FUNC_CIPHER_GETTABLE_PARAMS, (void (*)(void))chacha20_gettable_params },
{ OSSL_FUNC_CIPHER_GET_CTX_PARAMS, (void (*)(void))chacha20_get_ctx_params },
{ OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,
(void (*)(void))chacha20_gettable_ctx_params },
{ OSSL_FUNC_CIPHER_SET_CTX_PARAMS, (void (*)(void))chacha20_set_ctx_params },
{ OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,
(void (*)(void))chacha20_settable_ctx_params },
- { 0, NULL }
+ OSSL_DISPATCH_END
};
projects / openssl.git / blobdiff