[test] Add self-tests for SHA-1 algorithm

Signed-off-by: Michael Brown <mcb30@ipxe.org>

1 files changed, 69 insertions, 0 deletions

diff --git a/src/tests/digest_test.c b/src/tests/digest_test.c
new file mode 100644
index 00000000..7c2b4a47
--- /dev/null
+++ b/src/tests/digest_test.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/** @file
+ *
+ * Digest self-tests
+ *
+ */
+
+#include <string.h>
+#include <ipxe/crypto.h>
+#include "digest_test.h"
+
+/**
+ * Test digest algorithm
+ *
+ * @v digest		Digest algorithm
+ * @v fragments		Digest test fragment list, or NULL
+ * @v data		Test data
+ * @v len		Length of test data
+ * @v expected		Expected digest value
+ * @ret ok		Digest value is as expected
+ */
+int digest_test ( struct digest_algorithm *digest,
+		  struct digest_test_fragments *fragments,
+		  void *data, size_t len, void *expected ) {
+	uint8_t ctx[digest->ctxsize];
+	uint8_t out[digest->digestsize];
+	size_t frag_len = 0;
+	unsigned int i;
+
+	/* Initialise digest */
+	digest_init ( digest, ctx );
+
+	/* Update digest fragment-by-fragment */
+	for ( i = 0 ; len && ( i < ( sizeof ( fragments->len ) /
+				     sizeof ( fragments->len[0] ) ) ) ; i++ ) {
+		if ( fragments )
+			frag_len = fragments->len[i];
+		if ( ( frag_len == 0 ) || ( frag_len < len ) )
+			frag_len = len;
+		digest_update ( digest, ctx, data, frag_len );
+		data += frag_len;
+		len -= frag_len;
+	}
+
+	/* Finalise digest */
+	digest_final ( digest, ctx, out );
+
+	/* Compare against expected output */
+	return ( memcmp ( expected, out, sizeof ( out ) ) == 0 );
+}