1 files changed, 88 insertions, 0 deletions
diff --git a/botan/src/cert/cvc/ecdsa_sig.h b/botan/src/cert/cvc/ecdsa_sig.h
new file mode 100644
index 0000000..15015c7
--- /dev/null
+++ b/botan/src/cert/cvc/ecdsa_sig.h
@@ -0,0 +1,88 @@
+/*
+* ECDSA
+* (C) 2007 Falko Strenzke, FlexSecure GmbH
+* (C) 2008 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_ECDSA_SIGNATURE_H__
+#define BOTAN_ECDSA_SIGNATURE_H__
+
+#include <botan/bigint.h>
+#include <botan/der_enc.h>
+#include <botan/ber_dec.h>
+
+namespace Botan {
+
+class BOTAN_DLL ECDSA_Signature
+   {
+   public:
+      friend class ECDSA_Signature_Decoder;
+
+      ECDSA_Signature() {}
+      ECDSA_Signature(const BigInt& r, const BigInt& s);
+      ECDSA_Signature(ECDSA_Signature const& other);
+      ECDSA_Signature const& operator=(ECDSA_Signature const& other);
+
+      const BigInt& get_r() const { return m_r; }
+      const BigInt& get_s() const { return m_s; }
+
+      /**
+      * return the r||s
+      */
+      SecureVector<byte> const get_concatenation() const;
+   private:
+      BigInt m_r;
+      BigInt m_s;
+   };
+
+/* Equality of ECDSA_Signature */
+bool operator==(const ECDSA_Signature& lhs, const ECDSA_Signature& rhs);
+inline bool operator!=(const ECDSA_Signature& lhs, const ECDSA_Signature& rhs)
+   {
+   return !(lhs == rhs);
+   }
+
+class BOTAN_DLL ECDSA_Signature_Decoder
+   {
+   public:
+      void signature_bits(const MemoryRegion<byte>& bits)
+         {
+         BER_Decoder(bits)
+            .start_cons(SEQUENCE)
+            .decode(m_signature->m_r)
+            .decode(m_signature->m_s)
+            .verify_end()
+            .end_cons();
+         }
+      ECDSA_Signature_Decoder(ECDSA_Signature* signature) : m_signature(signature)
+         {}
+   private:
+      ECDSA_Signature* m_signature;
+   };
+
+class BOTAN_DLL ECDSA_Signature_Encoder
+   {
+   public:
+      MemoryVector<byte> signature_bits() const
+         {
+         return DER_Encoder()
+            .start_cons(SEQUENCE)
+            .encode(m_signature->get_r())
+            .encode(m_signature->get_s())
+            .end_cons()
+            .get_contents();
+         }
+      ECDSA_Signature_Encoder(const ECDSA_Signature* signature) : m_signature(signature)
+         {}
+   private:
+      const ECDSA_Signature* m_signature;
+   };
+
+ECDSA_Signature const decode_seq(MemoryRegion<byte> const& seq);
+ECDSA_Signature const decode_concatenation(MemoryRegion<byte> const& concatenation);
+
+}
+
+#endif