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120 lines
3.1 KiB
120 lines
3.1 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.IO;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.IO;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Bcpg
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{
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/// <remarks>Basic packet for a PGP public key.</remarks>
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public class PublicKeyEncSessionPacket
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: ContainedPacket //, PublicKeyAlgorithmTag
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{
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private int version;
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private long keyId;
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private PublicKeyAlgorithmTag algorithm;
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private byte[][] data;
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internal PublicKeyEncSessionPacket(
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BcpgInputStream bcpgIn)
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{
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version = bcpgIn.ReadByte();
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keyId |= (long)bcpgIn.ReadByte() << 56;
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keyId |= (long)bcpgIn.ReadByte() << 48;
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keyId |= (long)bcpgIn.ReadByte() << 40;
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keyId |= (long)bcpgIn.ReadByte() << 32;
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keyId |= (long)bcpgIn.ReadByte() << 24;
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keyId |= (long)bcpgIn.ReadByte() << 16;
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keyId |= (long)bcpgIn.ReadByte() << 8;
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keyId |= (uint)bcpgIn.ReadByte();
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algorithm = (PublicKeyAlgorithmTag) bcpgIn.ReadByte();
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switch ((PublicKeyAlgorithmTag) algorithm)
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{
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case PublicKeyAlgorithmTag.RsaEncrypt:
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case PublicKeyAlgorithmTag.RsaGeneral:
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data = new byte[][]{ new MPInteger(bcpgIn).GetEncoded() };
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break;
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case PublicKeyAlgorithmTag.ElGamalEncrypt:
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case PublicKeyAlgorithmTag.ElGamalGeneral:
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MPInteger p = new MPInteger(bcpgIn);
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MPInteger g = new MPInteger(bcpgIn);
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data = new byte[][]{
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p.GetEncoded(),
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g.GetEncoded(),
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};
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break;
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case PublicKeyAlgorithmTag.ECDH:
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data = new byte[][]{ Streams.ReadAll(bcpgIn) };
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break;
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default:
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throw new IOException("unknown PGP public key algorithm encountered");
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}
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}
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public PublicKeyEncSessionPacket(
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long keyId,
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PublicKeyAlgorithmTag algorithm,
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byte[][] data)
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{
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this.version = 3;
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this.keyId = keyId;
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this.algorithm = algorithm;
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this.data = new byte[data.Length][];
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for (int i = 0; i < data.Length; ++i)
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{
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this.data[i] = Arrays.Clone(data[i]);
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}
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}
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public int Version
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{
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get { return version; }
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}
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public long KeyId
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{
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get { return keyId; }
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}
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public PublicKeyAlgorithmTag Algorithm
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{
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get { return algorithm; }
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}
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public byte[][] GetEncSessionKey()
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{
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return data;
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}
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public override void Encode(
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BcpgOutputStream bcpgOut)
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{
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MemoryStream bOut = new MemoryStream();
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BcpgOutputStream pOut = new BcpgOutputStream(bOut);
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pOut.WriteByte((byte) version);
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pOut.WriteLong(keyId);
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pOut.WriteByte((byte)algorithm);
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for (int i = 0; i < data.Length; ++i)
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{
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pOut.Write(data[i]);
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}
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BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.Dispose(pOut);
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bcpgOut.WritePacket(PacketTag.PublicKeyEncryptedSession , bOut.ToArray(), true);
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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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