1 files changed, 58 insertions, 0 deletions
diff --git a/librecrypt_common_rfc4848s4_decoding_lut_.c b/librecrypt_common_rfc4848s4_decoding_lut_.c
new file mode 100644
index 0000000..457be19
--- /dev/null
+++ b/librecrypt_common_rfc4848s4_decoding_lut_.c
@@ -0,0 +1,58 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+
+const unsigned char librecrypt_common_rfc4848s4_decoding_lut_[256u] = {
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX,
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX,
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, 62, XX, XX, XX, 63,
+	52, 53, 54, 55, 56, 57, 58, 59, 60, 61, XX, XX, XX, XX, XX, XX,
+	XX,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
+	15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, XX, XX, XX, XX, XX,
+	XX, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+	41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, XX, XX, XX, XX, XX,
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX,
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX,
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX,
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX,
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX,
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX,
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX,
+	XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX
+};
+
+
+#else
+
+
+int
+main(void)
+{
+	unsigned i, found[64u], invalids = 0u;
+
+	SET_UP_ALARM();
+
+	/* Ensure values [0, 64) are encoded exactly once each,
+	 * and that all other characters are marked as invalid */
+	memset(found, 0, sizeof(found));
+	for (i = 0u; i < 256u; i++) {
+		if (librecrypt_common_rfc4848s4_decoding_lut_[i] == 0xFFu) {
+			invalids += 1u;
+		} else {
+			EXPECT(librecrypt_common_rfc4848s4_decoding_lut_[i] < 64u);
+			found[librecrypt_common_rfc4848s4_decoding_lut_[i]] += 1u;
+		}
+	}
+	EXPECT(invalids == 256u - 64u);
+	for (i = 0u; i < 64u; i++)
+		EXPECT(found[i] == 1u);
+
+	/* Match with librecrypt_common_rfc4848s4_encoding_lut_ is
+	 * tested in librecrypt_common_rfc4848s4_decoding_lut_.c */
+
+	return 0;
+}
+
+
+#endif