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68 lines
2.4 KiB
68 lines
2.4 KiB
1 year 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 System.Collections;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Tls
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{
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public class DefaultTlsSrpConfigVerifier
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: TlsSrpConfigVerifier
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{
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private static readonly IList DefaultGroups = BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.CreateArrayList();
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static DefaultTlsSrpConfigVerifier()
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{
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DefaultGroups.Add(Srp6StandardGroups.rfc5054_1024);
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DefaultGroups.Add(Srp6StandardGroups.rfc5054_1536);
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DefaultGroups.Add(Srp6StandardGroups.rfc5054_2048);
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DefaultGroups.Add(Srp6StandardGroups.rfc5054_3072);
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DefaultGroups.Add(Srp6StandardGroups.rfc5054_4096);
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DefaultGroups.Add(Srp6StandardGroups.rfc5054_6144);
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DefaultGroups.Add(Srp6StandardGroups.rfc5054_8192);
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}
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// IList is (SRP6Group)
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protected readonly IList m_groups;
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/// <summary>Accept only the group parameters specified in RFC 5054 Appendix A.</summary>
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public DefaultTlsSrpConfigVerifier()
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: this(DefaultGroups)
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{
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}
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/// <summary>Specify a custom set of acceptable group parameters.</summary>
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/// <param name="groups">an <see cref="IList"/> of acceptable <see cref="Srp6Group"/>.</param>
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public DefaultTlsSrpConfigVerifier(IList groups)
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{
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this.m_groups = BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.CreateArrayList(groups);
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}
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public virtual bool Accept(TlsSrpConfig srpConfig)
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{
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foreach (Srp6Group group in m_groups)
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{
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if (AreGroupsEqual(srpConfig, group))
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return true;
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}
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return false;
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}
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protected virtual bool AreGroupsEqual(TlsSrpConfig a, Srp6Group b)
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{
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BigInteger[] ng = a.GetExplicitNG();
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return AreParametersEqual(ng[0], b.N) && AreParametersEqual(ng[1], b.G);
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}
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protected virtual bool AreParametersEqual(BigInteger a, BigInteger b)
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{
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return a == b || a.Equals(b);
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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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