Diff: cyclone_crypto/asn1.h

Revision:

0:8918a71cdbe9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cyclone_crypto/asn1.h	Sat Feb 04 18:15:49 2017 +0000
@@ -0,0 +1,113 @@
+/**
+ * @file asn1.h
+ * @brief ASN.1 (Abstract Syntax Notation One)
+ *
+ * @section License
+ *
+ * Copyright (C) 2010-2017 Oryx Embedded SARL. All rights reserved.
+ *
+ * This file is part of CycloneCrypto Open.
+ *
+ * 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 (at your option) 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * @author Oryx Embedded SARL (www.oryx-embedded.com)
+ * @version 1.7.6
+ **/
+
+#ifndef _ASN1_H
+#define _ASN1_H
+
+//Dependencies
+#include "crypto.h"
+
+//Tag number mask
+#define ASN1_TAG_NUMBER_MASK        0x1F
+
+//ASN.1 encoding
+#define ASN1_ENCODING_MASK          0x20
+#define ASN1_ENCODING_PRIMITIVE     0x00
+#define ASN1_ENCODING_CONSTRUCTED   0x20
+
+//ASN.1 class
+#define ASN1_CLASS_MASK             0xC0
+#define ASN1_CLASS_UNIVERSAL        0x00
+#define ASN1_CLASS_APPLICATION      0x40
+#define ASN1_CLASS_CONTEXT_SPECIFIC 0x80
+#define ASN1_CLASS_PRIVATE          0xC0
+
+
+/**
+ * @brief ASN.1 data types
+ **/
+
+typedef enum
+{
+   ASN1_TYPE_BOOLEAN           = 1,
+   ASN1_TYPE_INTEGER           = 2,
+   ASN1_TYPE_BIT_STRING        = 3,
+   ASN1_TYPE_OCTET_STRING      = 4,
+   ASN1_TYPE_NULL              = 5,
+   ASN1_TYPE_OBJECT_IDENTIFIER = 6,
+   ASN1_TYPE_OBJECT_DESCRIPTOR = 7,
+   ASN1_TYPE_EXTERNAL          = 8,
+   ASN1_TYPE_REAL              = 9,
+   ASN1_TYPE_ENUMERATED        = 10,
+   ASN1_TYPE_UTF8_STRING       = 12,
+   ASN1_TYPE_SEQUENCE          = 16,
+   ASN1_TYPE_SET               = 17,
+   ASN1_TYPE_NUMERIC_STRING    = 18,
+   ASN1_TYPE_PRINTABLE_STRING  = 19,
+   ASN1_TYPE_TELETEX_STRING    = 20,
+   ASN1_TYPE_VIDEOTEX_STRING   = 21,
+   ASN1_TYPE_IA5_STRING        = 22,
+   ASN1_TYPE_UTC_TIME          = 23,
+   ASN1_TYPE_GENERALIZED_TIME  = 24,
+   ASN1_TYPE_GRAPHIC_STRING    = 25,
+   ASN1_TYPE_VISIBLE_STRING    = 26,
+   ASN1_TYPE_GENERAL_STRING    = 27,
+   ASN1_TYPE_UNIVERSAL_STRING  = 28,
+   ASN1_TYPE_BMP_STRING        = 30,
+} Asn1Type;
+
+
+/**
+ * @brief ASN.1 tag
+ **/
+
+typedef struct
+{
+   bool_t constructed;
+   uint_t objClass;
+   uint_t objType;
+   size_t length;
+   const uint8_t *value;
+   size_t totalLength;
+} Asn1Tag;
+
+
+//ASN.1 related functions
+error_t asn1ReadTag(const uint8_t *data, size_t length, Asn1Tag *tag);
+error_t asn1ReadInt32(const uint8_t *data, size_t length, Asn1Tag *tag, int32_t *value);
+
+error_t asn1WriteTag(Asn1Tag *tag, bool_t reverse, uint8_t *data, size_t *written);
+error_t asn1WriteInt32(int32_t value, bool_t reverse, uint8_t *data, size_t *written);
+
+error_t asn1CheckTag(const Asn1Tag *tag, bool_t constructed, uint_t objClass, uint_t objType);
+error_t asn1CheckOid(const Asn1Tag *tag, const uint8_t *oid, size_t length);
+
+error_t asn1DumpObject(const uint8_t *data, size_t length, uint_t level);
+
+#endif
+