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72 lines
2.6 KiB
72 lines
2.6 KiB
8 months ago
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#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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#pragma warning disable
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using System;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Multiplier;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters
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{
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/// <summary>Private parameters for an SM2 key exchange.</summary>
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/// <remarks>The ephemeralPrivateKey is used to calculate the random point used in the algorithm.</remarks>
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public class SM2KeyExchangePrivateParameters
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: ICipherParameters
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{
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private readonly bool mInitiator;
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private readonly ECPrivateKeyParameters mStaticPrivateKey;
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private readonly ECPoint mStaticPublicPoint;
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private readonly ECPrivateKeyParameters mEphemeralPrivateKey;
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private readonly ECPoint mEphemeralPublicPoint;
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public SM2KeyExchangePrivateParameters(
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bool initiator,
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ECPrivateKeyParameters staticPrivateKey,
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ECPrivateKeyParameters ephemeralPrivateKey)
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{
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if (staticPrivateKey == null)
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throw new ArgumentNullException("staticPrivateKey");
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if (ephemeralPrivateKey == null)
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throw new ArgumentNullException("ephemeralPrivateKey");
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ECDomainParameters parameters = staticPrivateKey.Parameters;
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if (!parameters.Equals(ephemeralPrivateKey.Parameters))
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throw new ArgumentException("Static and ephemeral private keys have different domain parameters");
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ECMultiplier m = new FixedPointCombMultiplier();
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this.mInitiator = initiator;
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this.mStaticPrivateKey = staticPrivateKey;
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this.mStaticPublicPoint = m.Multiply(parameters.G, staticPrivateKey.D).Normalize();
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this.mEphemeralPrivateKey = ephemeralPrivateKey;
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this.mEphemeralPublicPoint = m.Multiply(parameters.G, ephemeralPrivateKey.D).Normalize();
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}
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public virtual bool IsInitiator
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{
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get { return mInitiator; }
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}
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public virtual ECPrivateKeyParameters StaticPrivateKey
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{
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get { return mStaticPrivateKey; }
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}
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public virtual ECPoint StaticPublicPoint
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{
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get { return mStaticPublicPoint; }
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}
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public virtual ECPrivateKeyParameters EphemeralPrivateKey
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{
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get { return mEphemeralPrivateKey; }
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}
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public virtual ECPoint EphemeralPublicPoint
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{
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get { return mEphemeralPublicPoint; }
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}
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}
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}
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#pragma warning restore
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#endif
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