1 files changed, 87 insertions, 0 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/pubkey/dsa/dsa.h b/src/libs/3rdparty/botan/src/lib/pubkey/dsa/dsa.h
new file mode 100644
index 0000000000..b219a1cf37
--- /dev/null
+++ b/src/libs/3rdparty/botan/src/lib/pubkey/dsa/dsa.h
@@ -0,0 +1,87 @@
+/*
+* DSA
+* (C) 1999-2010 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_DSA_H_
+#define BOTAN_DSA_H_
+
+#include <botan/dl_algo.h>
+
+namespace Botan {
+
+/**
+* DSA Public Key
+*/
+class BOTAN_PUBLIC_API(2,0) DSA_PublicKey : public virtual DL_Scheme_PublicKey
+   {
+   public:
+      std::string algo_name() const override { return "DSA"; }
+
+      DL_Group::Format group_format() const override { return DL_Group::ANSI_X9_57; }
+      size_t message_parts() const override { return 2; }
+      size_t message_part_size() const override { return group_q().bytes(); }
+
+      /**
+      * Load a public key.
+      * @param alg_id the X.509 algorithm identifier
+      * @param key_bits DER encoded public key bits
+      */
+      DSA_PublicKey(const AlgorithmIdentifier& alg_id,
+                    const std::vector<uint8_t>& key_bits) :
+         DL_Scheme_PublicKey(alg_id, key_bits, DL_Group::ANSI_X9_57)
+         {
+         }
+
+      /**
+      * Create a public key.
+      * @param group the underlying DL group
+      * @param y the public value y = g^x mod p
+      */
+      DSA_PublicKey(const DL_Group& group, const BigInt& y);
+
+      std::unique_ptr<PK_Ops::Verification>
+         create_verification_op(const std::string& params,
+                                const std::string& provider) const override;
+   protected:
+      DSA_PublicKey() = default;
+   };
+
+/**
+* DSA Private Key
+*/
+class BOTAN_PUBLIC_API(2,0) DSA_PrivateKey final : public DSA_PublicKey,
+                                 public virtual DL_Scheme_PrivateKey
+   {
+   public:
+      /**
+      * Load a private key.
+      * @param alg_id the X.509 algorithm identifier
+      * @param key_bits DER encoded key bits in ANSI X9.57 format
+      */
+      DSA_PrivateKey(const AlgorithmIdentifier& alg_id,
+                     const secure_vector<uint8_t>& key_bits);
+
+      /**
+      * Create a private key.
+      * @param rng the RNG to use
+      * @param group the underlying DL group
+      * @param private_key the private key (if zero, a new random key is generated)
+      */
+      DSA_PrivateKey(RandomNumberGenerator& rng,
+                     const DL_Group& group,
+                     const BigInt& private_key = 0);
+
+      bool check_key(RandomNumberGenerator& rng, bool strong) const override;
+
+      std::unique_ptr<PK_Ops::Signature>
+         create_signature_op(RandomNumberGenerator& rng,
+                             const std::string& params,
+                             const std::string& provider) const override;
+   };
+
+}
+
+#endif