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https://github.com/openssl/openssl.git
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86db958835
Update makefiles so that consistent patterns are used. Object files are compiled from source using an implicit rule (but using our CFLAGS); for linking, we give an explicit rule. Ensure that "make test" works in each subdirectory (even if it does not actually run any applications). The top-level demo makefile now works. The makefiles are not make-agnostic. e.g. they use the variable $(RM) in "clean" recipes, which is defined in gnu-make but may not be defined in others. Part of #17806 Testing: $ cd demo $ make test Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/22698)
107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
/*
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* Copyright 2021-2023 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include <openssl/core_names.h>
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#include <openssl/crypto.h>
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#include <openssl/kdf.h>
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#include <openssl/obj_mac.h>
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#include <openssl/params.h>
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/*
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* test vector from
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* https://datatracker.ietf.org/doc/html/rfc5869
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*/
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static unsigned char hkdf_salt[] = {
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
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0x0c
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};
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static unsigned char hkdf_ikm[] = {
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0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
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0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b
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};
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static unsigned char hkdf_info[] = {
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0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9
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};
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/* Expected output keying material */
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static unsigned char hkdf_okm[] = {
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0x3c, 0xb2, 0x5f, 0x25, 0xfa, 0xac, 0xd5, 0x7a, 0x90, 0x43, 0x4f, 0x64,
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0xd0, 0x36, 0x2f, 0x2a, 0x2d, 0x2d, 0x0a, 0x90, 0xcf, 0x1a, 0x5a, 0x4c,
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0x5d, 0xb0, 0x2d, 0x56, 0xec, 0xc4, 0xc5, 0xbf, 0x34, 0x00, 0x72, 0x08,
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0xd5, 0xb8, 0x87, 0x18, 0x58, 0x65
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};
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int main(int argc, char **argv)
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{
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int ret = EXIT_FAILURE;
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EVP_KDF *kdf = NULL;
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EVP_KDF_CTX *kctx = NULL;
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unsigned char out[42];
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OSSL_PARAM params[5], *p = params;
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OSSL_LIB_CTX *library_context = NULL;
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library_context = OSSL_LIB_CTX_new();
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if (library_context == NULL) {
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fprintf(stderr, "OSSL_LIB_CTX_new() returned NULL\n");
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goto end;
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}
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/* Fetch the key derivation function implementation */
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kdf = EVP_KDF_fetch(library_context, "HKDF", NULL);
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if (kdf == NULL) {
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fprintf(stderr, "EVP_KDF_fetch() returned NULL\n");
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goto end;
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}
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/* Create a context for the key derivation operation */
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kctx = EVP_KDF_CTX_new(kdf);
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if (kctx == NULL) {
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fprintf(stderr, "EVP_KDF_CTX_new() returned NULL\n");
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goto end;
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}
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/* Set the underlying hash function used to derive the key */
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*p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
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"SHA256", 0);
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/* Set input keying material */
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*p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_KEY, hkdf_ikm,
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sizeof(hkdf_ikm));
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/* Set application specific information */
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*p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_INFO, hkdf_info,
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sizeof(hkdf_info));
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/* Set salt */
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*p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SALT, hkdf_salt,
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sizeof(hkdf_salt));
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*p = OSSL_PARAM_construct_end();
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/* Derive the key */
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if (EVP_KDF_derive(kctx, out, sizeof(out), params) != 1) {
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fprintf(stderr, "EVP_KDF_derive() failed\n");
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goto end;
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}
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if (CRYPTO_memcmp(hkdf_okm, out, sizeof(hkdf_okm)) != 0) {
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fprintf(stderr, "Generated key does not match expected value\n");
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goto end;
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}
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printf("Success\n");
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ret = EXIT_SUCCESS;
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end:
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EVP_KDF_CTX_free(kctx);
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EVP_KDF_free(kdf);
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OSSL_LIB_CTX_free(library_context);
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return ret;
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}
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