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67 lines
2.3 KiB
67 lines
2.3 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 System.IO;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Tls
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{
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public sealed class DigitallySigned
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{
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private readonly SignatureAndHashAlgorithm algorithm;
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private readonly byte[] signature;
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public DigitallySigned(SignatureAndHashAlgorithm algorithm, byte[] signature)
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{
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if (signature == null)
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throw new ArgumentNullException("signature");
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this.algorithm = algorithm;
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this.signature = signature;
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}
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/// <returns>a <see cref="SignatureAndHashAlgorithm"/> (or null before TLS 1.2).</returns>
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public SignatureAndHashAlgorithm Algorithm
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{
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get { return algorithm; }
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}
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public byte[] Signature
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{
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get { return signature; }
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}
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/// <summary>Encode this <see cref="DigitallySigned"/> to a <see cref="Stream"/>.</summary>
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/// <param name="output">the <see cref="Stream"/> to encode to.</param>
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/// <exception cref="IOException"/>
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public void Encode(Stream output)
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{
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if (algorithm != null)
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{
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algorithm.Encode(output);
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}
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TlsUtilities.WriteOpaque16(signature, output);
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}
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/// <summary>Parse a <see cref="DigitallySigned"/> from a <see cref="Stream"/>.</summary>
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/// <param name="context">the <see cref="TlsContext"/> of the current connection.</param>
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/// <param name="input">the <see cref="Stream"/> to parse from.</param>
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/// <returns>a <see cref="DigitallySigned"/> object.</returns>
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/// <exception cref="IOException"/>
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public static DigitallySigned Parse(TlsContext context, Stream input)
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{
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SignatureAndHashAlgorithm algorithm = null;
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if (TlsUtilities.IsTlsV12(context))
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{
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algorithm = SignatureAndHashAlgorithm.Parse(input);
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if (SignatureAlgorithm.anonymous == algorithm.Signature)
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throw new TlsFatalAlert(AlertDescription.illegal_parameter);
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}
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byte[] signature = TlsUtilities.ReadOpaque16(input);
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return new DigitallySigned(algorithm, signature);
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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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