OpenWrt – Blame information for rev 1
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1 | office | 1 | /* |
2 | * Copyright (c) 1997-1999 The Stanford SRP Authentication Project |
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3 | * All Rights Reserved. |
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4 | * |
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5 | * Permission is hereby granted, free of charge, to any person obtaining |
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6 | * a copy of this software and associated documentation files (the |
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7 | * "Software"), to deal in the Software without restriction, including |
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8 | * without limitation the rights to use, copy, modify, merge, publish, |
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9 | * distribute, sublicense, and/or sell copies of the Software, and to |
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10 | * permit persons to whom the Software is furnished to do so, subject to |
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11 | * the following conditions: |
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12 | * |
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13 | * The above copyright notice and this permission notice shall be |
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14 | * included in all copies or substantial portions of the Software. |
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15 | * |
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16 | * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, |
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17 | * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY |
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18 | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
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19 | * |
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20 | * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INCIDENTAL, |
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21 | * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER |
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22 | * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF |
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23 | * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT |
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24 | * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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25 | * |
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26 | * In addition, the following conditions apply: |
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27 | * |
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28 | * 1. Any software that incorporates the SRP authentication technology |
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29 | * must display the following acknowlegment: |
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30 | * "This product uses the 'Secure Remote Password' cryptographic |
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31 | * authentication system developed by Tom Wu (tjw@CS.Stanford.EDU)." |
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32 | * |
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33 | * 2. Any software that incorporates all or part of the SRP distribution |
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34 | * itself must also display the following acknowledgment: |
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35 | * "This product includes software developed by Tom Wu and Eugene |
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36 | * Jhong for the SRP Distribution (http://srp.stanford.edu/srp/)." |
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37 | * |
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38 | * 3. Redistributions in source or binary form must retain an intact copy |
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39 | * of this copyright notice and list of conditions. |
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40 | */ |
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41 | |||
42 | #include <stdio.h> |
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43 | #include "t_defines.h" |
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44 | #include "t_pwd.h" |
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45 | #include "t_client.h" |
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46 | |||
47 | int |
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48 | main() |
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49 | { |
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50 | int index; |
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51 | struct t_client * tc; |
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52 | struct t_preconf *tcp; |
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53 | struct t_num s; |
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54 | struct t_num B; |
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55 | char username[MAXUSERLEN]; |
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56 | char hexbuf[MAXHEXPARAMLEN]; |
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57 | char buf1[MAXPARAMLEN], buf2[MAXPARAMLEN], buf3[MAXSALTLEN]; |
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58 | unsigned char cbuf[20]; |
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59 | struct t_num * A; |
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60 | unsigned char * skey; |
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61 | char pass[128]; |
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62 | |||
63 | printf("Enter username: "); |
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64 | fgets(username, sizeof(username), stdin); |
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65 | username[strlen(username) - 1] = '\0'; |
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66 | printf("Enter index (from server): "); |
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67 | fgets(hexbuf, sizeof(hexbuf), stdin); |
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68 | index = atoi(hexbuf); |
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69 | tcp = t_getpreparam(index - 1); |
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70 | printf("Enter salt (from server): "); |
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71 | fgets(hexbuf, sizeof(hexbuf), stdin); |
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72 | s.data = buf3; |
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73 | s.len = t_fromb64(s.data, hexbuf); |
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74 | |||
75 | tc = t_clientopen(username, &tcp->modulus, &tcp->generator, &s); |
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76 | if (tc == 0) { |
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77 | printf("invalid n, g\n"); |
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78 | exit(1); |
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79 | } |
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80 | |||
81 | A = t_clientgenexp(tc); |
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82 | printf("A (to server): %s\n", t_tob64(hexbuf, A->data, A->len)); |
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83 | |||
84 | t_getpass(pass, 128, "Enter password:"); |
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85 | t_clientpasswd(tc, pass); |
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86 | |||
87 | printf("Enter B (from server): "); |
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88 | fgets(hexbuf, sizeof(hexbuf), stdin); |
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89 | B.data = buf1; |
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90 | B.len = t_fromb64(B.data, hexbuf); |
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91 | |||
92 | skey = t_clientgetkey(tc, &B); |
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93 | printf("Session key: %s\n", t_tohex(hexbuf, skey, 40)); |
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94 | printf("Response (to server): %s\n", |
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95 | t_tohex(hexbuf, t_clientresponse(tc), RESPONSE_LEN)); |
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96 | |||
97 | printf("Enter server response: "); |
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98 | fgets(hexbuf, sizeof(hexbuf), stdin); |
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99 | hexbuf[strlen(hexbuf) - 1] = '\0'; |
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100 | t_fromhex(cbuf, hexbuf); |
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101 | |||
102 | if (t_clientverify(tc, cbuf) == 0) |
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103 | printf("Server authentication successful.\n"); |
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104 | else |
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105 | printf("Server authentication failed.\n"); |
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106 | |||
107 | t_clientclose(tc); |
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108 | |||
109 | return 0; |
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110 | } |