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authorPaul Duncan <pabs@pablotron.org>2023-09-05 02:23:41 -0400
committerPaul Duncan <pabs@pablotron.org>2023-09-05 02:23:41 -0400
commitf6309d8dff9b17a42d2983fc2aa5613909a839e8 (patch)
tree291084aaf5e498c0e9a5f627d1e8b480e8f05d7e
parente82db21bff8ece5218ac5b87d2087a8db0f55dc9 (diff)
downloadsha3-f6309d8dff9b17a42d2983fc2aa5613909a839e8.tar.bz2
sha3-f6309d8dff9b17a42d2983fc2aa5613909a839e8.zip
main.c: add header and shake128-xof example to helpv0.1
-rw-r--r--main.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/main.c b/main.c
index bf58269..379d0ec 100644
--- a/main.c
+++ b/main.c
@@ -1,3 +1,4 @@
+// main.c: sha3 test application
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
@@ -126,15 +127,20 @@ static size_t get_fn_ofs(const char * const name) {
"- shake128-xof (XOF)\n" \
"- shake256-xof (XOF)\n" \
"\n" \
- "Example:\n" \
+ "Examples:\n" \
+ " # get SHA3-256 hash of string \"asdf\"\n" \
" %s sha3-256 \"asdf\"\n" \
- " dd2781f4c51bccdbe23e4d398b8a82261f585c278dbb4b84989fea70e76723a9\n"
+ " dd2781f4c51bccdbe23e4d398b8a82261f585c278dbb4b84989fea70e76723a9\n" \
+ "\n" \
+ " # get first 40 bytes of SHAKE128-XOF output of string \"foo\"\n" \
+ " %s shake128-xof foo 40\n" \
+ " f84e95cb5fbd2038863ab27d3cdeac295ad2d4ab96ad1f4b070c0bf36078ef0881db3194a9d0f3dd\n"
int main(int argc, char *argv[]) {
// check command-line arguments
if (argc < 3) {
const char *app = (argc > 0) ? argv[0] : "sha3";
- fprintf(stderr, USAGE, app, app);
+ fprintf(stderr, USAGE, app, app, app);
return -1;
}