You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
2.3 KiB
67 lines
2.3 KiB
1 year ago
|
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
|
||
|
|
#pragma warning disable
|
||
|
|
using System;
|
||
|
|
using System.IO;
|
||
|
|
|
||
|
|
namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Tls
|
||
|
|
{
|
||
|
|
public sealed class KeyShareEntry
|
||
|
|
{
|
||
|
|
private static bool CheckKeyExchangeLength(int length)
|
||
|
|
{
|
||
|
|
return 0 < length && length < (1 << 16);
|
||
|
|
}
|
||
|
|
|
||
|
|
private readonly int m_namedGroup;
|
||
|
|
private readonly byte[] m_keyExchange;
|
||
|
|
|
||
|
|
/// <param name="namedGroup"><see cref="NamedGroup"/></param>
|
||
|
|
/// <param name="keyExchange"></param>
|
||
|
|
public KeyShareEntry(int namedGroup, byte[] keyExchange)
|
||
|
|
{
|
||
|
|
if (!TlsUtilities.IsValidUint16(namedGroup))
|
||
|
|
throw new ArgumentException("should be a uint16", "namedGroup");
|
||
|
|
if (null == keyExchange)
|
||
|
|
throw new ArgumentNullException("keyExchange");
|
||
|
|
if (!CheckKeyExchangeLength(keyExchange.Length))
|
||
|
|
throw new ArgumentException("must have length from 1 to (2^16 - 1)", "keyExchange");
|
||
|
|
|
||
|
|
this.m_namedGroup = namedGroup;
|
||
|
|
this.m_keyExchange = keyExchange;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <returns><see cref="NamedGroup"/></returns>
|
||
|
|
public int NamedGroup
|
||
|
|
{
|
||
|
|
get { return m_namedGroup; }
|
||
|
|
}
|
||
|
|
|
||
|
|
public byte[] KeyExchange
|
||
|
|
{
|
||
|
|
get { return m_keyExchange; }
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>Encode this <see cref="KeyShareEntry"/> to a <see cref="Stream"/>.</summary>
|
||
|
|
/// <param name="output">the <see cref="Stream"/> to encode to.</param>
|
||
|
|
/// <exception cref="IOException"/>
|
||
|
|
public void Encode(Stream output)
|
||
|
|
{
|
||
|
|
TlsUtilities.WriteUint16(NamedGroup, output);
|
||
|
|
TlsUtilities.WriteOpaque16(KeyExchange, output);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>Parse a <see cref="KeyShareEntry"/> from a <see cref="Stream"/>.</summary>
|
||
|
|
/// <param name="input">the <see cref="Stream"/> to parse from.</param>
|
||
|
|
/// <returns>a <see cref="KeyShareEntry"/> object.</returns>
|
||
|
|
/// <exception cref="IOException"/>
|
||
|
|
public static KeyShareEntry Parse(Stream input)
|
||
|
|
{
|
||
|
|
int namedGroup = TlsUtilities.ReadUint16(input);
|
||
|
|
byte[] keyExchange = TlsUtilities.ReadOpaque16(input, 1);
|
||
|
|
return new KeyShareEntry(namedGroup, keyExchange);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#pragma warning restore
|
||
|
|
#endif
|