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annotate libtomcrypt/demos/sizes.c @ 1902:4a6725ac957c

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Revert "Don't include sk keys at all in KEX list" This reverts git commit f972813ecdc7bb981d25b5a63638bd158f1c8e72. The sk algorithms need to remain in the sigalgs list so that they are included in the server-sig-algs ext-info message sent by the server. RFC8308 for server-sig-algs requires that all algorithms are listed (though OpenSSH client 8.4p1 tested doesn't require that)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 24 Mar 2022 13:42:08 +0800
parents e9dba7abd939
children
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9
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10 #include "tomcrypt.h"
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11
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12 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L
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13 #include <libgen.h>
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14 #else
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15 #define basename(x) x
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16 #endif
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17 /**
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18 @file demo_crypt_sizes.c
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19
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20 Demo how to get various sizes to dynamic languages
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21 like Python - Larry Bugbee, February 2013
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22 */
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23
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24 static void _print_line(const char* cmd, const char* desc)
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25 {
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26 printf(" %-16s - %s\n", cmd, desc);
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27 }
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28
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29 int main(int argc, char **argv)
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30 {
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31 if (argc == 1) {
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32 /* given a specific size name, get and print its size */
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33 char name[] = "ltc_hash_descriptor";
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34 unsigned int size;
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35 char *sizes_list;
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36 unsigned int sizes_list_len;
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37 if (crypt_get_size(name, &size) != 0) exit(EXIT_FAILURE);
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38 printf("\n size of '%s' is %u \n\n", name, size);
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39
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40 /* get and print the length of the names (and sizes) list */
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41 if (crypt_list_all_sizes(NULL, &sizes_list_len) != 0) exit(EXIT_FAILURE);
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42 printf(" need to allocate %u bytes \n\n", sizes_list_len);
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43
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44 /* get and print the names (and sizes) list */
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45 if ((sizes_list = malloc(sizes_list_len)) == NULL) exit(EXIT_FAILURE);
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46 if (crypt_list_all_sizes(sizes_list, &sizes_list_len) != 0) exit(EXIT_FAILURE);
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47 printf(" supported sizes:\n\n%s\n\n", sizes_list);
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48 free(sizes_list);
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49 } else if (argc == 2) {
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50 if (strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0) {
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51 char* base = strdup(basename(argv[0]));
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52 printf("Usage: %s [-a] [-s name]\n\n", base);
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53 _print_line("<no argument>", "The old behavior of the demo");
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54 _print_line("-a", "Only lists all sizes");
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55 _print_line("-s name", "List a single size given as argument");
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56 _print_line("-h", "The help you're looking at");
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57 free(base);
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58 } else if (strcmp(argv[1], "-a") == 0) {
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59 char *sizes_list;
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60 unsigned int sizes_list_len;
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61 /* get and print the length of the names (and sizes) list */
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62 if (crypt_list_all_sizes(NULL, &sizes_list_len) != 0) exit(EXIT_FAILURE);
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63 /* get and print the names (and sizes) list */
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64 if ((sizes_list = malloc(sizes_list_len)) == NULL) exit(EXIT_FAILURE);
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65 if (crypt_list_all_sizes(sizes_list, &sizes_list_len) != 0) exit(EXIT_FAILURE);
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66 printf("%s\n", sizes_list);
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67 free(sizes_list);
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68 }
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69 } else if (argc == 3) {
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70 if (strcmp(argv[1], "-s") == 0) {
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71 unsigned int size;
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72 if (crypt_get_size(argv[2], &size) != 0) exit(EXIT_FAILURE);
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73 printf("%s,%u\n", argv[2], size);
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74 }
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75 }
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76 return 0;
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77 }
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78
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79 /* ref: $Format:%D$ */
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80 /* git commit: $Format:%H$ */
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81 /* commit time: $Format:%ai$ */