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/*
* (C) 2012-2013 by Christian Hesse <mail@eworm.de>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
* Base on an example from:
* http://www.lysator.liu.se/~nisse/nettle/nettle.html#Example
*/
#include <stdio.h>
#include <stdlib.h>
#include <nettle/md4.h>
#define BUF_SIZE 1024
int main(int argc, char **argv) {
struct md4_ctx ctx;
uint8_t buffer[BUF_SIZE], buffernull[2*BUF_SIZE];
uint8_t digest[MD4_DIGEST_SIZE];
int i, done;
md4_init(&ctx);
while (1) {
done = fread(buffer, 1, sizeof(buffer), stdin);
/* add null bytes to string */
for (i = 0; i < done; i++) {
if (buffer[i] == 0xa)
fprintf(stderr, "Warning: Password contains line break!\n");
else if (buffer[i] < 0x20 || buffer[i] == 0x7f)
fprintf(stderr, "Warning: Password contains non-printable control character 0x%x!\n", buffer[i]);
else if (buffer[i] > 0x7f)
fprintf(stderr, "Warning: Password contains non-ASCII character 0x%x!\n", buffer[i]);
buffernull[i*2] = buffer[i];
buffernull[i*2+1] = 0;
}
md4_update(&ctx, done*2, buffernull);
if (done < sizeof(buffer))
break;
}
if (ferror(stdin))
return EXIT_FAILURE;
md4_digest(&ctx, MD4_DIGEST_SIZE, digest);
for (i = 0; i < MD4_DIGEST_SIZE -1; i++)
printf("%02x ", digest[i]);
printf("%02x", digest[i]);
putchar('\n');
return EXIT_SUCCESS;
}
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