initial commit0.1.0

3 files changed, 56 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4a79314
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+*~
+*.o
+nthash
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..8c11863
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,11 @@
+# nthash - Generate NT Hash
+
+CC	:= gcc
+CFLAGS	+= $(shell pkg-config --cflags --libs nettle)
+VERSION	= $(shell git describe --tags --long)
+
+all: nthash.c
+	$(CC) $(CFLAGS) -o nthash nthash.c
+
+clean:
+	/bin/rm -f *.o *~ nthash
diff --git a/nthash.c b/nthash.c
new file mode 100644
index 0000000..16afe60
--- /dev/null
+++ b/nthash.c
@@ -0,0 +1,42 @@
+/* (c) 2012-2013 Christian Hesse <mail@eworm.de>
+ * Base on an example from:
+ * http://www.lysator.liu.se/~nisse/nettle/nettle.html#Example */
+
+#include <stdio.h>
+#include <stdlib.h>
+		 
+#include <nettle/md4.h>
+		 
+#define BUF_SIZE 1024
+
+int main(int argc, char **argv) {
+	struct md4_ctx ctx;
+	uint8_t buffer[BUF_SIZE], buffernull[2*BUF_SIZE];
+	uint8_t digest[MD4_DIGEST_SIZE];
+	int i, done;
+	
+	md4_init(&ctx);
+	for (;;) {
+		done = fread(buffer, 1, sizeof(buffer), stdin);
+		// add null bytes to string
+		for (i = 0; i < done; i++) {
+			if (buffer[i] == 0xa)
+				fprintf(stderr, "Warning: Password contains line break!\n");
+			buffernull[i*2] = buffer[i];
+			buffernull[i*2+1] = 0;
+		}
+		md4_update(&ctx, done*2, buffernull);
+		if (done < sizeof(buffer))
+			break;
+	}
+	if (ferror(stdin))
+		return EXIT_FAILURE;
+
+	md4_digest(&ctx, MD4_DIGEST_SIZE, digest);
+
+	for (i = 0; i < MD4_DIGEST_SIZE; i++)
+		printf("%02x ", digest[i]);
+	printf("\n");
+
+	return EXIT_SUCCESS;
+}