2 * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
13 #include <openssl/kdf.h>
14 #include <openssl/evp.h>
15 #include "internal/cryptlib.h"
16 #include "internal/evp_int.h"
17 #include "internal/numbers.h"
18 #include "kdf_local.h"
20 int call_ctrl(int (*ctrl)(EVP_KDF_IMPL *impl, int cmd, va_list args),
21 EVP_KDF_IMPL *impl, int cmd, ...)
27 ret = ctrl(impl, cmd, args);
33 /* Utility functions to send a string or hex string to a ctrl */
35 int kdf_str2ctrl(EVP_KDF_IMPL *impl,
36 int (*ctrl)(EVP_KDF_IMPL *impl, int cmd, va_list args),
37 int cmd, const char *str)
39 return call_ctrl(ctrl, impl, cmd, (const unsigned char *)str, strlen(str));
42 int kdf_hex2ctrl(EVP_KDF_IMPL *impl,
43 int (*ctrl)(EVP_KDF_IMPL *impl, int cmd, va_list args),
44 int cmd, const char *hex)
50 bin = OPENSSL_hexstr2buf(hex, &binlen);
54 if (binlen <= INT_MAX)
55 ret = call_ctrl(ctrl, impl, cmd, bin, (size_t)binlen);
60 /* Pass a message digest to a ctrl */
61 int kdf_md2ctrl(EVP_KDF_IMPL *impl,
62 int (*ctrl)(EVP_KDF_IMPL *impl, int cmd, va_list args),
63 int cmd, const char *md_name)
67 if (md_name == NULL || (md = EVP_get_digestbyname(md_name)) == NULL) {
68 KDFerr(KDF_F_KDF_MD2CTRL, KDF_R_INVALID_DIGEST);
71 return call_ctrl(ctrl, impl, cmd, md);