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//
// kmac128-example: Hash contents of DATA with KMAC128 and key and print first
// 32 bytes of result to standard output.
//
#include <stdint.h>
#include <stdio.h>
#include "hex.h"
#include "sha3.h"
// test data
static const uint8_t DATA[] = "this is some test data";
static const struct {
const char *name;
kmac_params_t params;
} ROWS[] = {{
.name = "KMAC128 (key = \"\", custom = \"\")",
}, {
.name = "KMAC128 (key = \"foo\", custom = \"\")",
.params = {
.key = (uint8_t*) "foo",
.key_len = 3,
},
}, {
.name = "KMAC128 (key = \"bar\", custom = \"\")",
.params = {
.key = (uint8_t*) "bar",
.key_len = 3,
},
}, {
.name = "KMAC128 (key = \"bar\", custom = \"blum\")",
.params = {
.key = (uint8_t*) "bar",
.key_len = 3,
.custom = (uint8_t*) "blum",
.custom_len = 4,
},
}};
int main() {
for (size_t i = 0; i < sizeof(ROWS)/sizeof(ROWS[0]); i++) {
// hash data
uint8_t buf[32] = { 0 };
kmac128_xof_once(ROWS[i].params, DATA, sizeof(DATA), buf, sizeof(buf));
// print to stdout
printf("%s:\n", ROWS[i].name);
hex_write(stdout, buf, sizeof(buf));
printf("\n");
}
return 0;
}
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