55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* GraxRabble
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* 05 May 2014
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* Demo programs for libsodium.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sodium.h> /* library header */
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#include "demo_utils.h" /* utility functions shared by demos */
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/*
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* Short hash is a fast algorithm intended for hash tables and anything
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* else that does not require data integrity. There is the added benefit
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* of a key which will alter the output of the hash.
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*/
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void
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shorthash(void)
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{
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unsigned char k[crypto_shorthash_KEYBYTES]; /* key */
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unsigned char h[crypto_shorthash_BYTES]; /* hash output */
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unsigned char m[BUFFER_SIZE]; /* message */
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size_t mlen; /* length */
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puts("Example: crypto_shorthash\n");
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sodium_memzero(k, sizeof k);
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prompt_input("Input your key > ", (char*) k, sizeof k);
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mlen = prompt_input("Input your message > ", (char*) m, sizeof m);
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putchar('\n');
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printf("Hashing message with %s\n", crypto_shorthash_primitive());
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crypto_shorthash(h, m, mlen, k);
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fputs("Hash: ", stdout);
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print_hex(h, sizeof h);
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putchar('\n');
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putchar('\n');
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}
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int
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main(int argc, char **argv)
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{
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sodium_init();
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printf("Using LibSodium %s\n", sodium_version_string());
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shorthash();
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exit(EXIT_SUCCESS);
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}
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