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85 lines
2.0 KiB
85 lines
2.0 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 BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.X9
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{
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/**
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* class for describing an ECPoint as a Der object.
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*/
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public class X9ECPoint
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: Asn1Encodable
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{
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private readonly Asn1OctetString encoding;
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private ECCurve c;
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private ECPoint p;
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public X9ECPoint(ECPoint p)
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: this(p, false)
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{
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}
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public X9ECPoint(ECPoint p, bool compressed)
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{
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this.p = p.Normalize();
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this.encoding = new DerOctetString(p.GetEncoded(compressed));
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}
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public X9ECPoint(ECCurve c, byte[] encoding)
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{
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this.c = c;
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this.encoding = new DerOctetString(Arrays.Clone(encoding));
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}
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public X9ECPoint(ECCurve c, Asn1OctetString s)
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: this(c, s.GetOctets())
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{
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}
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public byte[] GetPointEncoding()
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{
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return Arrays.Clone(encoding.GetOctets());
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}
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public ECPoint Point
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{
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get
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{
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if (p == null)
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{
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p = c.DecodePoint(encoding.GetOctets()).Normalize();
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}
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return p;
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}
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}
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public bool IsPointCompressed
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{
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get
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{
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byte[] octets = encoding.GetOctets();
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return octets != null && octets.Length > 0 && (octets[0] == 2 || octets[0] == 3);
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}
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}
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/**
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* Produce an object suitable for an Asn1OutputStream.
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* <pre>
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* ECPoint ::= OCTET STRING
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* </pre>
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* <p>
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* Octet string produced using ECPoint.GetEncoded().</p>
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*/
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public override Asn1Object ToAsn1Object()
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{
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return encoding;
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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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