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-rw-r--r--src/lib/base/symkey.h143
1 files changed, 143 insertions, 0 deletions
diff --git a/src/lib/base/symkey.h b/src/lib/base/symkey.h
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+++ b/src/lib/base/symkey.h
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+/*
+* OctetString
+* (C) 1999-2007 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_SYMKEY_H__
+#define BOTAN_SYMKEY_H__
+
+#include <botan/secmem.h>
+#include <string>
+
+namespace Botan {
+
+/**
+* Octet String
+*/
+class BOTAN_DLL OctetString
+ {
+ public:
+ /**
+ * @return size of this octet string in bytes
+ */
+ size_t length() const { return bits.size(); }
+
+ /**
+ * @return this object as a secure_vector<byte>
+ */
+ secure_vector<byte> bits_of() const { return bits; }
+
+ /**
+ * @return start of this string
+ */
+ const byte* begin() const { return &bits[0]; }
+
+ /**
+ * @return end of this string
+ */
+ const byte* end() const { return begin() + bits.size(); }
+
+ /**
+ * @return this encoded as hex
+ */
+ std::string as_string() const;
+
+ /**
+ * XOR the contents of another octet string into this one
+ * @param other octet string
+ * @return reference to this
+ */
+ OctetString& operator^=(const OctetString& other);
+
+ /**
+ * Force to have odd parity
+ */
+ void set_odd_parity();
+
+ /**
+ * Create a new OctetString
+ * @param str is a hex encoded string
+ */
+ OctetString(const std::string& str = "");
+
+ /**
+ * Create a new random OctetString
+ * @param rng is a random number generator
+ * @param len is the desired length in bytes
+ */
+ OctetString(class RandomNumberGenerator& rng, size_t len);
+
+ /**
+ * Create a new OctetString
+ * @param in is an array
+ * @param len is the length of in in bytes
+ */
+ OctetString(const byte in[], size_t len);
+
+ /**
+ * Create a new OctetString
+ * @param in a bytestring
+ */
+ OctetString(const secure_vector<byte>& in) : bits(in) {}
+
+ /**
+ * Create a new OctetString
+ * @param in a bytestring
+ */
+ OctetString(const std::vector<byte>& in) : bits(in.begin(), in.end()) {}
+ private:
+ secure_vector<byte> bits;
+ };
+
+/**
+* Compare two strings
+* @param x an octet string
+* @param y an octet string
+* @return if x is equal to y
+*/
+BOTAN_DLL bool operator==(const OctetString& x,
+ const OctetString& y);
+
+/**
+* Compare two strings
+* @param x an octet string
+* @param y an octet string
+* @return if x is not equal to y
+*/
+BOTAN_DLL bool operator!=(const OctetString& x,
+ const OctetString& y);
+
+/**
+* Concatenate two strings
+* @param x an octet string
+* @param y an octet string
+* @return x concatenated with y
+*/
+BOTAN_DLL OctetString operator+(const OctetString& x,
+ const OctetString& y);
+
+/**
+* XOR two strings
+* @param x an octet string
+* @param y an octet string
+* @return x XORed with y
+*/
+BOTAN_DLL OctetString operator^(const OctetString& x,
+ const OctetString& y);
+
+
+/**
+* Alternate name for octet string showing intent to use as a key
+*/
+typedef OctetString SymmetricKey;
+
+/**
+* Alternate name for octet string showing intent to use as an IV
+*/
+typedef OctetString InitializationVector;
+
+}
+
+#endif