Diff: cyassl/ctaocrypt/poly1305.h

Revision:

0:b86d15c6ba29

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cyassl/ctaocrypt/poly1305.h	Mon Jan 19 21:45:42 2015 +0000
@@ -0,0 +1,83 @@
+/* poly1305.h
+ *
+ * Copyright (C) 2006-2014 wolfSSL Inc.
+ *
+ * This file is part of CyaSSL.
+ *
+ * CyaSSL 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
+ * (at your option) any later version.
+ *
+ * CyaSSL 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+
+#ifdef HAVE_POLY1305
+
+#ifndef CTAO_CRYPT_POLY1305_H
+#define CTAO_CRYPT_POLY1305_H
+
+#include <cyassl/ctaocrypt/types.h>
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+/* auto detect between 32bit / 64bit */
+#define HAS_SIZEOF_INT128_64BIT (defined(__SIZEOF_INT128__) && defined(__LP64__))
+#define HAS_MSVC_64BIT (defined(_MSC_VER) && defined(_M_X64))
+#define HAS_GCC_4_4_64BIT (defined(__GNUC__) && defined(__LP64__) && \
+        ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4))))
+
+#if (HAS_SIZEOF_INT128_64BIT || HAS_MSVC_64BIT || HAS_GCC_4_4_64BIT)
+#define POLY130564
+#else
+#define POLY130532
+#endif
+
+enum {
+    POLY1305 = 7,
+    POLY1305_BLOCK_SIZE = 16,
+    POLY1305_DIGEST_SIZE = 16,
+    POLY1305_PAD_SIZE = 56
+};
+
+/* Poly1305 state */
+typedef struct Poly1305 {
+#if defined(POLY130564)
+	word64 r[3];
+	word64 h[3];
+	word64 pad[2];
+#else
+	word32 r[5];
+	word32 h[5];
+	word32 pad[4];
+#endif
+	size_t leftover;
+	unsigned char buffer[POLY1305_BLOCK_SIZE];
+	unsigned char final;
+} Poly1305;
+
+
+/* does init */
+
+CYASSL_API int Poly1305SetKey(Poly1305* poly1305, const byte* key, word32 kySz);
+CYASSL_API int Poly1305Update(Poly1305* poly1305, const byte*, word32);
+CYASSL_API int Poly1305Final(Poly1305* poly1305, byte* tag);
+
+#ifdef __cplusplus
+    } /* extern "C" */
+#endif
+
+#endif /* CTAO_CRYPT_POLY1305_H */
+
+#endif /* HAVE_POLY1305 */
+