thodg/libgit2/deps/ntlmclient/crypt_openssl.c

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• Hash : a7f65f03
  Author :
  Date : 2019-03-21T15:42:57
  

  ntlm: add ntlmclient as a dependency Include https://github.com/ethomson/ntlmclient as a dependency.

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• deps/ntlmclient/crypt_openssl.c

• /*
   * Copyright (c) Edward Thomson.  All rights reserved.
   *
   * This file is part of ntlmclient, distributed under the MIT license.
   * For full terms and copyright information, and for third-party
   * copyright information, see the included LICENSE.txt file.
   */
  
  #include <stdlib.h>
  #include <string.h>
  
  #include <openssl/rand.h>
  #include <openssl/des.h>
  #include <openssl/md4.h>
  #include <openssl/hmac.h>
  #include <openssl/err.h>
  
  #include "ntlm.h"
  #include "compat.h"
  #include "util.h"
  #include "crypt.h"
  
  bool ntlm_random_bytes(
  	ntlm_client *ntlm,
  	unsigned char *out,
  	size_t len)
  {
  	int rc = RAND_bytes(out, len);
  
  	if (rc != 1) {
  		ntlm_client_set_errmsg(ntlm, ERR_lib_error_string(ERR_get_error()));
  		return false;
  	}
  
  	return true;
  }
  
  bool ntlm_des_encrypt(
  	ntlm_des_block *out,
  	ntlm_des_block *plaintext,
  	ntlm_des_block *key)
  {
  	DES_key_schedule keysched;
  
  	memset(out, 0, sizeof(ntlm_des_block));
  
  	DES_set_key(key, &keysched);
  	DES_ecb_encrypt(plaintext, out, &keysched, DES_ENCRYPT);
  
  	return true;
  }
  
  bool ntlm_md4_digest(
  	unsigned char out[CRYPT_MD4_DIGESTSIZE],
  	const unsigned char *in,
  	size_t in_len)
  {
  	MD4(in, in_len, out);
  	return true;
  }
  
  #if OPENSSL_VERSION_NUMBER < 0x10100000L
  static inline void HMAC_CTX_free(HMAC_CTX *ctx)
  {
  	if (ctx)
  		HMAC_CTX_cleanup(ctx);
  
  	free(ctx);
  }
  
  static inline int HMAC_CTX_reset(HMAC_CTX *ctx)
  {
  	HMAC_CTX_cleanup(ctx);
  	memzero(ctx, sizeof(HMAC_CTX));
  	return 1;
  }
  
  static inline HMAC_CTX *HMAC_CTX_new(void)
  {
  	return calloc(1, sizeof(HMAC_CTX));
  }
  #endif
  
  ntlm_hmac_ctx *ntlm_hmac_ctx_init(void)
  {
  	return HMAC_CTX_new();
  }
  
  bool ntlm_hmac_ctx_reset(ntlm_hmac_ctx *ctx)
  {
  	return HMAC_CTX_reset(ctx);
  }
  
  bool ntlm_hmac_md5_init(
  	ntlm_hmac_ctx *ctx,
  	const unsigned char *key,
  	size_t key_len)
  {
  	return HMAC_Init_ex(ctx, key, key_len, EVP_md5(), NULL);
  }
  
  bool ntlm_hmac_md5_update(
  	ntlm_hmac_ctx *ctx,
  	const unsigned char *in,
  	size_t in_len)
  {
  	return HMAC_Update(ctx, in, in_len);
  }
  
  bool ntlm_hmac_md5_final(
  	unsigned char *out,
  	size_t *out_len,
  	ntlm_hmac_ctx *ctx)
  {
  	unsigned int len;
  
  	if (*out_len < CRYPT_MD5_DIGESTSIZE)
  		return false;
  
  	if (!HMAC_Final(ctx, out, &len))
  		return false;
  
  	*out_len = len;
  	return true;
  }
  
  void ntlm_hmac_ctx_free(ntlm_hmac_ctx *ctx)
  {
  	HMAC_CTX_free(ctx);
  }
  

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