Implement SHA-1

1 files changed, 37 insertions, 0 deletions

diff --git a/c/sha1/main.c b/c/sha1/main.c
new file mode 100644
index 0000000..9ea4aab
--- /dev/null
+++ b/c/sha1/main.c
@@ -0,0 +1,37 @@
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "sha1.h"
+
+static uint8_t bigbuf1[1000000];
+static uint8_t bigbuf2[1000000];
+
+int
+main(int argc, char **argv)
+{
+	(void)argc;
+
+	int e = 0;
+	sha1_t s;
+	uint8_t dgst[SHA1DGSTSZ];
+
+	memset(bigbuf1, 'a', sizeof(bigbuf1));
+	memset(bigbuf2, 'b', sizeof(bigbuf2));
+
+	sha1init(&s);
+	e |= sha1hash(&s, bigbuf1, sizeof(bigbuf1));
+	e |= sha1hash(&s, bigbuf2, sizeof(bigbuf2));
+	sha1end(&s, dgst);
+
+	if (e != 0) {
+		fprintf(stderr, "%s: %s\n", argv[0], strerror(e));
+		exit(EXIT_FAILURE);
+	}
+
+	for (int i = 0; i < sizeof(dgst); i++)
+		printf("%02" PRIx8, dgst[i]);
+	putchar('\n');
+	return EXIT_SUCCESS;
+}