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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * This file is part of the SSH Library</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (c) 2003,2009 by Aris Adamantiadis</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * The SSH Library is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * it under the terms of the GNU Lesser General Public License as published by</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * the Free Software Foundation; either version 2.1 of the License, or (at your</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The SSH Library is distributed in the hope that it will be useful, but</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * You should have received a copy of the GNU Lesser General Public License</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * along with the SSH Library; see the file COPYING. If not, write to</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * MA 02111-1307, USA.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * crypto.h is an include file for internal cryptographic structures of libssh</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#ifndef _CRYPTO_H_</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span><span class="preprocessor">#define _CRYPTO_H_</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "config.h"</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#ifdef HAVE_LIBGCRYPT</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor"></span><span class="preprocessor">#include <gcrypt.h></span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"></span><span class="preprocessor">#include "libssh/wrapper.h"</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#ifdef cbc_encrypt</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"></span><span class="preprocessor">#undef cbc_encrypt</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"></span><span class="preprocessor">#ifdef cbc_decrypt</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"></span><span class="preprocessor">#undef cbc_decrypt</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">struct </span>ssh_crypto_struct {</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  bignum e,f,x,k,y;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> session_id[SHA_DIGEST_LEN];</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> encryptIV[SHA_DIGEST_LEN*2];</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> decryptIV[SHA_DIGEST_LEN*2];</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> decryptkey[SHA_DIGEST_LEN*2];</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> encryptkey[SHA_DIGEST_LEN*2];</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> encryptMAC[SHA_DIGEST_LEN];</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> decryptMAC[SHA_DIGEST_LEN];</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> hmacbuf[EVP_MAX_MD_SIZE];</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">struct </span>crypto_struct *in_cipher, *out_cipher; <span class="comment">/* the cipher structures/objects */</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  ssh_string server_pubkey;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *server_pubkey_type;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">int</span> do_compress_out; <span class="comment">/* idem */</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordtype">int</span> do_compress_in; <span class="comment">/* don't set them, set the option instead */</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">int</span> delayed_compress_in; <span class="comment">/* Use of zlib@openssh.org */</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">int</span> delayed_compress_out;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">void</span> *compress_out_ctx; <span class="comment">/* don't touch it */</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordtype">void</span> *compress_in_ctx; <span class="comment">/* really, don't */</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> };</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="keyword">struct </span>crypto_struct {</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *name; <span class="comment">/* ssh name of the algorithm */</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> blocksize; <span class="comment">/* blocksize of the algo */</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> keylen; <span class="comment">/* length of the key structure */</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#ifdef HAVE_LIBGCRYPT</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"></span> gcry_cipher_hd_t *key;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#elif defined HAVE_LIBCRYPTO</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"></span> <span class="keywordtype">void</span> *key; <span class="comment">/* a key buffer allocated for the algo */</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor"></span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> keysize; <span class="comment">/* bytes of key used. != keylen */</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#ifdef HAVE_LIBGCRYPT</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"></span> <span class="comment">/* sets the new key for immediate use */</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  int (*set_encrypt_key)(<span class="keyword">struct </span>crypto_struct *cipher, <span class="keywordtype">void</span> *key, <span class="keywordtype">void</span> *IV);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  int (*set_decrypt_key)(<span class="keyword">struct </span>crypto_struct *cipher, <span class="keywordtype">void</span> *key, <span class="keywordtype">void</span> *IV);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  void (*cbc_encrypt)(<span class="keyword">struct </span>crypto_struct *cipher, <span class="keywordtype">void</span> *in, <span class="keywordtype">void</span> *out,</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> len);</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  void (*cbc_decrypt)(<span class="keyword">struct </span>crypto_struct *cipher, <span class="keywordtype">void</span> *in, <span class="keywordtype">void</span> *out,</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> len);</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#elif defined HAVE_LIBCRYPTO</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"></span> <span class="comment">/* sets the new key for immediate use */</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  int (*set_encrypt_key)(<span class="keyword">struct </span>crypto_struct *cipher, <span class="keywordtype">void</span> *key);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  int (*set_decrypt_key)(<span class="keyword">struct </span>crypto_struct *cipher, <span class="keywordtype">void</span> *key);</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  void (*cbc_encrypt)(<span class="keyword">struct </span>crypto_struct *cipher, <span class="keywordtype">void</span> *in, <span class="keywordtype">void</span> *out,</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> len, <span class="keywordtype">void</span> *IV);</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  void (*cbc_decrypt)(<span class="keyword">struct </span>crypto_struct *cipher, <span class="keywordtype">void</span> *in, <span class="keywordtype">void</span> *out,</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> len, <span class="keywordtype">void</span> *IV);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor"></span>};</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment">/* vim: set ts=2 sw=2 et cindent: */</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor">#endif </span><span class="comment">/* _CRYPTO_H_ */</span><span class="preprocessor"></span></div>
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