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annotate demos/hashsum.c @ 16:09ab3354aa21 libtomcrypt

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propagate of e8bea23df30f9f46c647d06db3b223427b4e3604 and b0b6b4a8843b94d9f049cb5ffe0b1ae91ec1bf8b from branch 'au.asn.ucc.matt.ltc-orig' to 'au.asn.ucc.matt.ltc-db'
author Matt Johnston <matt@ucc.asn.au>
date Tue, 15 Jun 2004 14:27:14 +0000
parents d7da3b1e1540
children 5d99163f7e32
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1 /*
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2 * Written by Daniel Richards <[email protected]> 6/7/2002
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3 * hash.c: This app uses libtomcrypt to hash either stdin or a file
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4 * This file is Public Domain. No rights are reserved.
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5 * Compile with 'gcc hashsum.c -o hashsum -ltomcrypt'
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6 * This example isn't really big enough to warrent splitting into
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7 * more functions ;)
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8 */
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9
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10 #include <mycrypt_custom.h>
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11
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12 int errno;
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13
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14 void register_algs();
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15
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16 int main(int argc, char **argv)
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17 {
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18 int idx, x, z;
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19 unsigned long w;
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20 unsigned char hash_buffer[MAXBLOCKSIZE];
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21 hash_state md;
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22
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23 /* You need to register algorithms before using them */
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24 register_algs();
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25 if (argc < 2) {
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26 printf("usage: ./hash algorithm file [file ...]\n");
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27 printf("Algorithms:\n");
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28 for (x = 0; hash_descriptor[x].name != NULL; x++) {
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29 printf(" %s\n", hash_descriptor[x].name);
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30 }
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31 exit(EXIT_SUCCESS);
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32 }
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33
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34 idx = find_hash(argv[1]);
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35 if (idx == -1) {
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36 fprintf(stderr, "\nInvalid hash specified on command line.\n");
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37 return -1;
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38 }
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39
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40 if (argc == 2) {
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41 hash_descriptor[idx].init(&md);
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42 do {
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43 x = fread(hash_buffer, 1, sizeof(hash_buffer), stdin);
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44 hash_descriptor[idx].process(&md, hash_buffer, x);
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45 } while (x == sizeof(hash_buffer));
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46 hash_descriptor[idx].done(&md, hash_buffer);
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47 for (x = 0; x < (int)hash_descriptor[idx].hashsize; x++) {
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48 printf("%02x",hash_buffer[x]);
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49 }
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50 printf(" (stdin)\n");
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51 } else {
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52 for (z = 2; z < argc; z++) {
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53 w = sizeof(hash_buffer);
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54 if ((errno = hash_file(idx,argv[z],hash_buffer,&w)) != CRYPT_OK) {
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55 printf("File hash error: %s\n", error_to_string(errno));
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56 } else {
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57 for (x = 0; x < (int)hash_descriptor[idx].hashsize; x++) {
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58 printf("%02x",hash_buffer[x]);
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59 }
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60 printf(" %s\n", argv[z]);
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61 }
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62 }
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63 }
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64 return EXIT_SUCCESS;
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65 }
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66
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67 void register_algs(void)
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68 {
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69 #ifdef TIGER
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70 register_hash (&tiger_desc);
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71 #endif
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72 #ifdef MD2
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73 register_hash (&md2_desc);
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74 #endif
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75 #ifdef MD4
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76 register_hash (&md4_desc);
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77 #endif
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78 #ifdef MD5
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79 register_hash (&md5_desc);
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80 #endif
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81 #ifdef SHA1
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82 register_hash (&sha1_desc);
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83 #endif
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84 #ifdef SHA224
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85 register_hash (&sha224_desc);
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86 #endif
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87 #ifdef SHA256
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88 register_hash (&sha256_desc);
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89 #endif
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90 #ifdef SHA384
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91 register_hash (&sha384_desc);
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92 #endif
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93 #ifdef SHA512
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94 register_hash (&sha512_desc);
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95 #endif
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96 #ifdef RIPEMD128
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97 register_hash (&rmd128_desc);
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98 #endif
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99 #ifdef RIPEMD160
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100 register_hash (&rmd160_desc);
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101 #endif
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102 #ifdef WHIRLPOOL
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103 register_hash (&whirlpool_desc);
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104 #endif
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105
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106 }