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/*
* Copyright © 2025 Mobi - Com Polska Sp. z o.o.
* Author: Małgorzata Olszówka <Malgorzata.Olszowka@stunnel.org>
* All rights reserved.
*
* PKCS#11 provider tests support library
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* Ed25519/ED448 common functions */
#include "eddsa_common.h"
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
int EVP_Digest_sign_verify_test(EVP_PKEY *priv, EVP_PKEY *pub)
{
EVP_MD_CTX *mdctx = NULL;
int retval = 0;
const unsigned char msg[] = "libp11";
size_t siglen, msglen = sizeof(msg) - 1;
unsigned char *sig = NULL;
if (!priv || !pub) {
printf("Where are the keys?\n");
return -1;
}
/* --- Sign --- */
mdctx = EVP_MD_CTX_new();
if (!mdctx) {
retval = -2;
goto err;
}
/* initialize the sign context using an Ed25519/Ed448 private key,
* notice that the digest name must NOT be used */
if (EVP_DigestSignInit(mdctx, NULL, NULL, NULL, priv) != 1) {
retval = -3;
goto err;
}
/* calculate the required size for the signature by passing a NULL buffer */
if (EVP_DigestSign(mdctx, NULL, &siglen, msg, msglen) != 1) {
retval = -4;
goto err;
}
sig = OPENSSL_malloc(siglen);
if (!sig) {
retval = -5;
goto err;
}
/* generate the signature */
if (EVP_DigestSign(mdctx, sig, &siglen, msg, msglen) != 1) {
retval = -6;
goto err;
}
EVP_MD_CTX_destroy(mdctx);
/* --- Verify --- */
mdctx = EVP_MD_CTX_new();
if (!mdctx) {
retval = -7;
goto err;
}
/* initialize the verify context with a Ed25519/Ed448 public key */
if (EVP_DigestVerifyInit(mdctx, NULL, NULL, NULL, pub) != 1) {
retval = -8;
goto err;
}
/* Ed25519/Ed448 only supports the one shot interface using EVP_DigestVerify(),
* the streaming EVP_DigestVerifyUpdate() API is not supported */
if (EVP_DigestVerify(mdctx, sig, siglen, msg, msglen) == 1) {
retval = 0;
goto err;
} else {
retval = -9;
goto err;
}
err:
if (sig)
OPENSSL_free(sig);
if (mdctx)
EVP_MD_CTX_destroy(mdctx);
return retval;
}
int EVP_PKEY_sign_verify_test(EVP_PKEY *priv, EVP_PKEY *pub)
{
EVP_PKEY_CTX *ctx = NULL;
EVP_MD_CTX *mdctx = NULL;
int retval = 0;
const unsigned char msg[] = "libp11";
size_t siglen, msglen = sizeof(msg) - 1;
unsigned char *sig = NULL;
if (!priv || !pub) {
printf("Where are the keys?\n");
return -1;
}
/* --- Sign --- */
siglen = (size_t)EVP_PKEY_get_size(priv);
sig = OPENSSL_malloc(siglen);
if (!sig) {
return -2;
}
ctx = EVP_PKEY_CTX_new_from_pkey(NULL, priv, NULL);
if (!ctx) {
retval = -3;
goto err;
}
if (EVP_PKEY_sign_init(ctx) <= 0) {
retval = -4;
goto err;
}
if (EVP_PKEY_sign(ctx, sig, &siglen, msg, msglen) <= 0) {
retval = -5;
goto err;
}
/* --- Verify ---
* Ed25519 and Ed448 do not implement verify_init/verify in EVP_PKEY_METHOD.
* These algorithms support only one-shot signing and verification operations.
* See also: EVP_SIGNATURE-ED25519 and EVP_SIGNATURE-ED448.
*/
mdctx = EVP_MD_CTX_new();
if (!mdctx) {
retval = -6;
goto err;
}
/* initialize the verify context with a Ed25519/Ed448 public key */
if (EVP_DigestVerifyInit(mdctx, NULL, NULL, NULL, pub) != 1) {
retval = -7;
goto err;
}
/* Ed25519/Ed448 only supports the one shot interface using EVP_DigestVerify(),
* the streaming EVP_DigestVerifyUpdate() API is not supported */
if (EVP_DigestVerify(mdctx, sig, siglen, msg, msglen) == 1) {
retval = 0;
goto err;
} else {
retval = -8;
goto err;
}
err:
if (sig)
OPENSSL_free(sig);
if (ctx)
EVP_PKEY_CTX_free(ctx);
if (mdctx)
EVP_MD_CTX_destroy(mdctx);
return retval;
}
#else
/* Disable ISO C forbids an empty translation unit [-Wpedantic] warning */
extern int make_iso_compilers_happy;
#endif /* OPENSSL_VERSION_NUMBER >= 0x30000000L */
/* vim: set noexpandtab: */
|
