text: /*
   * This file is part of the SSH Library
   *
   * Copyright (c) 2009 by Aris Adamantiadis
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  
  #ifndef WRAPPER_H_
  #define WRAPPER_H_
  
  #include "config.h"
  #include "libssh/libssh.h"
  #include "libssh/libcrypto.h"
  #include "libssh/libgcrypt.h"
  
  enum ssh_mac_e {
    SSH_MAC_SHA1=1,
    SSH_MAC_SHA256,
    SSH_MAC_SHA384,
    SSH_MAC_SHA512
  };
  
  enum ssh_hmac_e {
    SSH_HMAC_SHA1 = 1,
    SSH_HMAC_SHA256,
    SSH_HMAC_SHA384,
    SSH_HMAC_SHA512,
    SSH_HMAC_MD5
  };
  
  enum ssh_des_e {
    SSH_3DES,
    SSH_DES
  };
  
  struct ssh_hmac_struct {
    const char* name;
    enum ssh_hmac_e hmac_type;
  };
  
  typedef struct ssh_mac_ctx_struct *ssh_mac_ctx;
  MD5CTX md5_init(void);
  void md5_update(MD5CTX c, const void *data, unsigned long len);
  void md5_final(unsigned char *md,MD5CTX c);
  
  SHACTX sha1_init(void);
  void sha1_update(SHACTX c, const void *data, unsigned long len);
  void sha1_final(unsigned char *md,SHACTX c);
  void sha1(unsigned char *digest,int len,unsigned char *hash);
  
  SHA256CTX sha256_init(void);
  void sha256_update(SHA256CTX c, const void *data, unsigned long len);
  void sha256_final(unsigned char *md,SHA256CTX c);
  void sha256(unsigned char *digest, int len, unsigned char *hash);
  
  SHA384CTX sha384_init(void);
  void sha384_update(SHA384CTX c, const void *data, unsigned long len);
  void sha384_final(unsigned char *md,SHA384CTX c);
  void sha384(unsigned char *digest, int len, unsigned char *hash);
  
  SHA512CTX sha512_init(void);
  void sha512_update(SHA512CTX c, const void *data, unsigned long len);
  void sha512_final(unsigned char *md,SHA512CTX c);
  void sha512(unsigned char *digest, int len, unsigned char *hash);
  
  void evp(int nid, unsigned char *digest, int len, unsigned char *hash, unsigned int *hlen);
  EVPCTX evp_init(int nid);
  void evp_update(EVPCTX ctx, const void *data, unsigned long len);
  void evp_final(EVPCTX ctx, unsigned char *md, unsigned int *mdlen);
  
  ssh_mac_ctx ssh_mac_ctx_init(enum ssh_mac_e type);
  void ssh_mac_update(ssh_mac_ctx ctx, const void *data, unsigned long len);
  void ssh_mac_final(unsigned char *md, ssh_mac_ctx ctx);
  
  HMACCTX hmac_init(const void *key,int len, enum ssh_hmac_e type);
  void hmac_update(HMACCTX c, const void *data, unsigned long len);
  void hmac_final(HMACCTX ctx,unsigned char *hashmacbuf,unsigned int *len);
  size_t hmac_digest_len(enum ssh_hmac_e type);
  
  int crypt_set_algorithms(ssh_session session, enum ssh_des_e des_type);
  int crypt_set_algorithms_server(ssh_session session);
  struct ssh_crypto_struct *crypto_new(void);
  void crypto_free(struct ssh_crypto_struct *crypto);
  
  void ssh_reseed(void);
  
  void ssh_cipher_clear(struct ssh_cipher_struct *cipher);
  struct ssh_hmac_struct *ssh_get_hmactab(void);
  const char *ssh_hmac_type_to_string(enum ssh_hmac_e hmac_type);
  
  #endif /* WRAPPER_H_ */
  