initial commit

1 files changed, 20 insertions, 0 deletions

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..5ef63fc
--- /dev/null
+++ b/main.c
@@ -0,0 +1,20 @@
+#include <stdio.h> // printf()
+#include <string.h> // strlen()
+#include "sha256.h"
+
+static const char DEFAULT[] = "The quick brown fox jumps over the lazy dog";
+
+int main(int argc, char *argv[]) {
+  const char *src = (argc > 1) ? argv[1] : DEFAULT;
+  uint8_t dst[SHA256_HASH_SIZE];
+
+  sha256((const uint8_t *) src, strlen(src), dst);
+
+  printf("src = \"%s\"\nhash = \"", src);
+  for (size_t i = 0; i < 32; i++) {
+    printf("%02x", dst[i]);
+  }
+  printf("\"\n");
+
+  return 0;
+}