1 files changed, 91 insertions, 0 deletions
diff --git a/src/lib/pubkey/ecgdsa/ecgdsa.h b/src/lib/pubkey/ecgdsa/ecgdsa.h
new file mode 100644
index 000000000..518adeeab
--- /dev/null
+++ b/src/lib/pubkey/ecgdsa/ecgdsa.h
@@ -0,0 +1,91 @@
+/*
+* ECGDSA (BSI-TR-03111, version 2.0)
+* (C) 2016 René Korthaus
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_ECGDSA_KEY_H__
+#define BOTAN_ECGDSA_KEY_H__
+
+#include <botan/ecc_key.h>
+
+namespace Botan {
+
+/**
+* This class represents ECGDSA public keys.
+*/
+class BOTAN_DLL ECGDSA_PublicKey : public virtual EC_PublicKey
+   {
+   public:
+
+      /**
+      * Construct a public key from a given public point.
+      * @param dom_par the domain parameters associated with this key
+      * @param public_point the public point defining this key
+      */
+      ECGDSA_PublicKey(const EC_Group& dom_par,
+                      const PointGFp& public_point) :
+         EC_PublicKey(dom_par, public_point) {}
+
+      ECGDSA_PublicKey(const AlgorithmIdentifier& alg_id,
+                      const secure_vector<byte>& key_bits) :
+         EC_PublicKey(alg_id, key_bits) {}
+
+      /**
+      * Get this keys algorithm name.
+      * @result this keys algorithm name ("ECGDSA")
+      */
+      std::string algo_name() const override { return "ECGDSA"; }
+
+      /**
+      * Get the maximum number of bits allowed to be fed to this key.
+      * This is the bitlength of the order of the base point.
+      * @result the maximum number of input bits
+      */
+      size_t max_input_bits() const override
+         { return domain().get_order().bits(); }
+
+      size_t message_parts() const override { return 2; }
+
+      size_t message_part_size() const override
+         { return domain().get_order().bytes(); }
+
+   protected:
+      ECGDSA_PublicKey() {}
+   };
+
+/**
+* This class represents ECGDSA private keys.
+*/
+class BOTAN_DLL ECGDSA_PrivateKey : public ECGDSA_PublicKey,
+                                    public EC_PrivateKey
+   {
+   public:
+
+      /**
+      * Load a private key
+      * @param alg_id the X.509 algorithm identifier
+      * @param key_bits PKCS #8 structure
+      */
+      ECGDSA_PrivateKey(const AlgorithmIdentifier& alg_id,
+                       const secure_vector<byte>& key_bits) :
+         EC_PrivateKey(alg_id, key_bits, true) {}
+
+      /**
+      * Generate a new private key
+      * @param rng a random number generator
+      * @param domain parameters to used for this key
+      * @param x the private key (if zero, generate a new random key)
+      */
+      ECGDSA_PrivateKey(RandomNumberGenerator& rng,
+                       const EC_Group& domain,
+                       const BigInt& x = 0) :
+         EC_PrivateKey(rng, domain, x, true) {}
+
+      bool check_key(RandomNumberGenerator& rng, bool) const override;
+   };
+
+}
+
+#endif