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-rw-r--r--main.c20
1 files changed, 7 insertions, 13 deletions
diff --git a/main.c b/main.c
index a616ebd..d7918f4 100644
--- a/main.c
+++ b/main.c
@@ -3,15 +3,9 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
+#include "hex.h" // hex_write()
#include "sha3.h"
-// print hex-encoded buffer to stdout.
-static void print_hex(const uint8_t * const buf, const size_t len) {
- for (size_t i = 0; i < len; i++) {
- printf("%02x", buf[i]);
- }
-}
-
// shake128-xof handler
static void do_shake128_xof(const uint8_t *msg, const size_t msg_len, const size_t out_len) {
// init xof
@@ -29,7 +23,7 @@ static void do_shake128_xof(const uint8_t *msg, const size_t msg_len, const size
// squeeze and print
const size_t len = (out_len - i < sizeof(buf)) ? out_len - i : sizeof(buf);
shake128_xof_squeeze(&xof, buf, len);
- print_hex(buf, len);
+ hex_write(stdout, buf, len);
}
fputs("\n", stdout);
@@ -52,7 +46,7 @@ static void do_shake256_xof(const uint8_t * const msg, const size_t msg_len, con
// squeeze and print
const size_t len = (out_len - i < sizeof(buf)) ? out_len - i : sizeof(buf);
shake256_xof_squeeze(&xof, buf, len);
- print_hex(buf, len);
+ hex_write(stdout, buf, len);
}
fputs("\n", stdout);
@@ -75,7 +69,7 @@ static void do_turboshake128(const uint8_t * const msg, const size_t msg_len, co
// squeeze and print
const size_t len = (out_len - i < sizeof(buf)) ? out_len - i : sizeof(buf);
turboshake128_squeeze(&ts, buf, len);
- print_hex(buf, len);
+ hex_write(stdout, buf, len);
}
fputs("\n", stdout);
@@ -98,7 +92,7 @@ static void do_turboshake256(const uint8_t * const msg, const size_t msg_len, co
// squeeze and print
const size_t len = (out_len - i < sizeof(buf)) ? out_len - i : sizeof(buf);
turboshake256_squeeze(&ts, buf, len);
- print_hex(buf, len);
+ hex_write(stdout, buf, len);
}
fputs("\n", stdout);
@@ -115,7 +109,7 @@ static void do_k12(const uint8_t * const msg, const size_t msg_len, const size_t
// squeeze and print
const size_t len = (out_len - i < sizeof(buf)) ? out_len - i : sizeof(buf);
k12_squeeze(&k12, buf, len);
- print_hex(buf, len);
+ hex_write(stdout, buf, len);
}
fputs("\n", stdout);
@@ -237,7 +231,7 @@ int main(int argc, char *argv[]) {
// hash into buffer, print buffer, print newline
uint8_t buf[64];
fns[ofs].hash_func(msg, len, buf);
- print_hex(buf, fns[ofs].size);
+ hex_write(stdout, buf, fns[ofs].size);
fputs("\n", stdout);
}