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