/*
- * Copyright 2018-2019 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2018-2024 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
*/
+/*
+ * DES low level APIs are deprecated for public use, but still ok for internal
+ * use. We access the DES_set_odd_parity(3) function here.
+ */
+#include "internal/deprecated.h"
+
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <openssl/des.h>
#include <openssl/evp.h>
#include <openssl/kdf.h>
+#include <openssl/proverr.h>
#include "internal/cryptlib.h"
#include "crypto/evp.h"
#include "prov/implementations.h"
#include "prov/provider_ctx.h"
#include "prov/provider_util.h"
-#include "prov/providercommonerr.h"
+#include "prov/providercommon.h"
/* KRB5 KDF defined in RFC 3961, Section 5.1 */
-static OSSL_OP_kdf_newctx_fn krb5kdf_new;
-static OSSL_OP_kdf_freectx_fn krb5kdf_free;
-static OSSL_OP_kdf_reset_fn krb5kdf_reset;
-static OSSL_OP_kdf_derive_fn krb5kdf_derive;
-static OSSL_OP_kdf_settable_ctx_params_fn krb5kdf_settable_ctx_params;
-static OSSL_OP_kdf_set_ctx_params_fn krb5kdf_set_ctx_params;
-static OSSL_OP_kdf_gettable_ctx_params_fn krb5kdf_gettable_ctx_params;
-static OSSL_OP_kdf_get_ctx_params_fn krb5kdf_get_ctx_params;
+static OSSL_FUNC_kdf_newctx_fn krb5kdf_new;
+static OSSL_FUNC_kdf_dupctx_fn krb5kdf_dup;
+static OSSL_FUNC_kdf_freectx_fn krb5kdf_free;
+static OSSL_FUNC_kdf_reset_fn krb5kdf_reset;
+static OSSL_FUNC_kdf_derive_fn krb5kdf_derive;
+static OSSL_FUNC_kdf_settable_ctx_params_fn krb5kdf_settable_ctx_params;
+static OSSL_FUNC_kdf_set_ctx_params_fn krb5kdf_set_ctx_params;
+static OSSL_FUNC_kdf_gettable_ctx_params_fn krb5kdf_gettable_ctx_params;
+static OSSL_FUNC_kdf_get_ctx_params_fn krb5kdf_get_ctx_params;
static int KRB5KDF(const EVP_CIPHER *cipher, ENGINE *engine,
const unsigned char *key, size_t key_len,
{
KRB5KDF_CTX *ctx;
+ if (!ossl_prov_is_running())
+ return NULL;
+
if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL)
- ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
+ return NULL;
ctx->provctx = provctx;
return ctx;
}
static void krb5kdf_reset(void *vctx)
{
KRB5KDF_CTX *ctx = (KRB5KDF_CTX *)vctx;
+ void *provctx = ctx->provctx;
ossl_prov_cipher_reset(&ctx->cipher);
OPENSSL_clear_free(ctx->key, ctx->key_len);
OPENSSL_clear_free(ctx->constant, ctx->constant_len);
memset(ctx, 0, sizeof(*ctx));
+ ctx->provctx = provctx;
}
static int krb5kdf_set_membuf(unsigned char **dst, size_t *dst_len,
{
OPENSSL_clear_free(*dst, *dst_len);
*dst = NULL;
+ *dst_len = 0;
return OSSL_PARAM_get_octet_string(p, (void **)dst, 0, dst_len);
}
-static int krb5kdf_derive(void *vctx, unsigned char *key,
- size_t keylen)
+static void *krb5kdf_dup(void *vctx)
+{
+ const KRB5KDF_CTX *src = (const KRB5KDF_CTX *)vctx;
+ KRB5KDF_CTX *dest;
+
+ dest = krb5kdf_new(src->provctx);
+ if (dest != NULL) {
+ if (!ossl_prov_memdup(src->key, src->key_len,
+ &dest->key, &dest->key_len)
+ || !ossl_prov_memdup(src->constant, src->constant_len,
+ &dest->constant , &dest->constant_len)
+ || !ossl_prov_cipher_copy(&dest->cipher, &src->cipher))
+ goto err;
+ }
+ return dest;
+
+ err:
+ krb5kdf_free(dest);
+ return NULL;
+}
+
+static int krb5kdf_derive(void *vctx, unsigned char *key, size_t keylen,
+ const OSSL_PARAM params[])
{
KRB5KDF_CTX *ctx = (KRB5KDF_CTX *)vctx;
- const EVP_CIPHER *cipher = ossl_prov_cipher_cipher(&ctx->cipher);
- ENGINE *engine = ossl_prov_cipher_engine(&ctx->cipher);
+ const EVP_CIPHER *cipher;
+ ENGINE *engine;
+ if (!ossl_prov_is_running() || !krb5kdf_set_ctx_params(ctx, params))
+ return 0;
+
+ cipher = ossl_prov_cipher_cipher(&ctx->cipher);
if (cipher == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_CIPHER);
return 0;
ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_CONSTANT);
return 0;
}
+ engine = ossl_prov_cipher_engine(&ctx->cipher);
return KRB5KDF(cipher, engine, ctx->key, ctx->key_len,
ctx->constant, ctx->constant_len,
key, keylen);
{
const OSSL_PARAM *p;
KRB5KDF_CTX *ctx = vctx;
- OPENSSL_CTX *provctx = PROV_LIBRARY_CONTEXT_OF(ctx->provctx);
+ OSSL_LIB_CTX *provctx = PROV_LIBCTX_OF(ctx->provctx);
+
+ if (params == NULL)
+ return 1;
if (!ossl_prov_cipher_load_from_params(&ctx->cipher, params, provctx))
return 0;
return 1;
}
-static const OSSL_PARAM *krb5kdf_settable_ctx_params(void)
+static const OSSL_PARAM *krb5kdf_settable_ctx_params(ossl_unused void *ctx,
+ ossl_unused void *provctx)
{
static const OSSL_PARAM known_settable_ctx_params[] = {
OSSL_PARAM_utf8_string(OSSL_KDF_PARAM_PROPERTIES, NULL, 0),
cipher = ossl_prov_cipher_cipher(&ctx->cipher);
if (cipher)
- len = EVP_CIPHER_key_length(cipher);
+ len = EVP_CIPHER_get_key_length(cipher);
else
len = EVP_MAX_KEY_LENGTH;
return -2;
}
-static const OSSL_PARAM *krb5kdf_gettable_ctx_params(void)
+static const OSSL_PARAM *krb5kdf_gettable_ctx_params(ossl_unused void *ctx,
+ ossl_unused void *provctx)
{
static const OSSL_PARAM known_gettable_ctx_params[] = {
OSSL_PARAM_size_t(OSSL_KDF_PARAM_SIZE, NULL),
return known_gettable_ctx_params;
}
-const OSSL_DISPATCH kdf_krb5kdf_functions[] = {
+const OSSL_DISPATCH ossl_kdf_krb5kdf_functions[] = {
{ OSSL_FUNC_KDF_NEWCTX, (void(*)(void))krb5kdf_new },
+ { OSSL_FUNC_KDF_DUPCTX, (void(*)(void))krb5kdf_dup },
{ OSSL_FUNC_KDF_FREECTX, (void(*)(void))krb5kdf_free },
{ OSSL_FUNC_KDF_RESET, (void(*)(void))krb5kdf_reset },
{ OSSL_FUNC_KDF_DERIVE, (void(*)(void))krb5kdf_derive },
(void(*)(void))krb5kdf_gettable_ctx_params },
{ OSSL_FUNC_KDF_GET_CTX_PARAMS,
(void(*)(void))krb5kdf_get_ctx_params },
- { 0, NULL }
+ OSSL_DISPATCH_END
};
#ifndef OPENSSL_NO_DES
if (!ret)
goto out;
/* set the key len for the odd variable key len cipher */
- klen = EVP_CIPHER_CTX_key_length(ctx);
+ klen = EVP_CIPHER_CTX_get_key_length(ctx);
if (key_len != (size_t)klen) {
ret = EVP_CIPHER_CTX_set_key_length(ctx, key_len);
- if (!ret)
+ if (ret <= 0) {
+ ret = 0;
goto out;
+ }
}
/* we never want padding, either the length requested is a multiple of
* the cipher block size or we are passed a cipher that can cope with
#ifndef OPENSSL_NO_DES
/* special case for 3des, where the caller may be requesting
* the random raw key, instead of the fixed up key */
- if (EVP_CIPHER_nid(cipher) == NID_des_ede3_cbc &&
+ if (EVP_CIPHER_get_nid(cipher) == NID_des_ede3_cbc &&
key_len == 24 && okey_len == 21) {
des3_no_fixup = 1;
} else {
goto out;
/* Initialize input block */
- blocksize = EVP_CIPHER_CTX_block_size(ctx);
+ blocksize = EVP_CIPHER_CTX_get_block_size(ctx);
+
+ if (blocksize == 0) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_CIPHER);
+ ret = 0;
+ goto out;
+ }
if (constant_len > blocksize) {
ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CONSTANT_LENGTH);
}
#ifndef OPENSSL_NO_DES
- if (EVP_CIPHER_nid(cipher) == NID_des_ede3_cbc && !des3_no_fixup) {
+ if (EVP_CIPHER_get_nid(cipher) == NID_des_ede3_cbc && !des3_no_fixup) {
ret = fixup_des3_key(okey);
if (!ret) {
ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GENERATE_KEY);
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