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Assets/BestHTTP/SecureProtocol/crypto/signers/IDsaKCalculator.cs

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+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+
+using System;
+
+using Org.BouncyCastle.Math;
+using Org.BouncyCastle.Security;
+
+namespace Org.BouncyCastle.Crypto.Signers
+{
+    /**
+     * Interface define calculators of K values for DSA/ECDSA.
+     */
+    public interface IDsaKCalculator
+    {
+        /**
+         * Return true if this calculator is deterministic, false otherwise.
+         *
+         * @return true if deterministic, otherwise false.
+         */
+        bool IsDeterministic { get; }
+
+        /**
+         * Non-deterministic initialiser.
+         *
+         * @param n the order of the DSA group.
+         * @param random a source of randomness.
+         */
+        void Init(BigInteger n, SecureRandom random);
+
+        /**
+         * Deterministic initialiser.
+         *
+         * @param n the order of the DSA group.
+         * @param d the DSA private value.
+         * @param message the message being signed.
+         */
+        void Init(BigInteger n, BigInteger d, byte[] message);
+
+        /**
+         * Return the next valid value of K.
+         *
+         * @return a K value.
+         */
+        BigInteger NextK();
+    }
+}
+
+#endif