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* Copyright 1995-2016 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
* in the file LICENSE in the source distribution or at
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
int PEM_SignInit(EVP_MD_CTX *ctx, EVP_MD *type)
return EVP_DigestInit_ex(ctx, type, NULL);
int PEM_SignUpdate(EVP_MD_CTX *ctx,
const unsigned char *data, unsigned int count)
return EVP_DigestUpdate(ctx, data, count);
int PEM_SignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
unsigned int *siglen, EVP_PKEY *pkey)
unsigned char *m;
int i, ret = 0;
unsigned int m_len;
m = OPENSSL_malloc(EVP_PKEY_size(pkey));
if (m == NULL) {
goto err;
if (EVP_SignFinal(ctx, m, &m_len, pkey) <= 0)
goto err;
i = EVP_EncodeBlock(sigret, m, m_len);
*siglen = i;
ret = 1;
/* ctx has been zeroed by EVP_SignFinal() */
return ret;