crypto/sha/sha1_one.c

   1 /*
   2  * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 /*
  11  * SHA-1 low level APIs are deprecated for public use, but still ok for
  12  * internal use.
  13  */
  14 #include "internal/deprecated.h"
  15
  16 #include <stdio.h>
  17 #include <string.h>
  18 #include <openssl/crypto.h>
  19 #include <openssl/sha.h>
  20 #include <openssl/evp.h>
  21 #include "crypto/sha.h"
  22
  23 unsigned char *ossl_sha1(const unsigned char *d, size_t n, unsigned char *md)
  24 {
  25     SHA_CTX c;
  26     static unsigned char m[SHA_DIGEST_LENGTH];
  27
  28     if (md == NULL)
  29         md = m;
  30     if (!SHA1_Init(&c))
  31         return NULL;
  32     SHA1_Update(&c, d, n);
  33     SHA1_Final(md, &c);
  34     OPENSSL_cleanse(&c, sizeof(c));
  35     return md;
  36 }
  37
  38 unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md)
  39 {
  40     static unsigned char m[SHA_DIGEST_LENGTH];
  41
  42     if (md == NULL)
  43         md = m;
  44     return EVP_Q_digest(NULL, "SHA1", NULL, d, n, md, NULL) ? md : NULL;
  45 }
  46
  47 unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md)
  48 {
  49     static unsigned char m[SHA224_DIGEST_LENGTH];
  50
  51     if (md == NULL)
  52         md = m;
  53     return EVP_Q_digest(NULL, "SHA224", NULL, d, n, md, NULL) ? md : NULL;
  54 }
  55
  56 unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md)
  57 {
  58     static unsigned char m[SHA256_DIGEST_LENGTH];
  59
  60     if (md == NULL)
  61         md = m;
  62     return EVP_Q_digest(NULL, "SHA256", NULL, d, n, md, NULL) ? md : NULL;
  63 }
  64
  65 unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md)
  66 {
  67     static unsigned char m[SHA384_DIGEST_LENGTH];
  68
  69     if (md == NULL)
  70         md = m;
  71     return EVP_Q_digest(NULL, "SHA384", NULL, d, n, md, NULL) ? md : NULL;
  72 }
  73
  74 unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md)
  75 {
  76     static unsigned char m[SHA512_DIGEST_LENGTH];
  77
  78     if (md == NULL)
  79         md = m;
  80     return EVP_Q_digest(NULL, "SHA512", NULL, d, n, md, NULL) ? md : NULL;
  81 }