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84 lines
2.0 KiB
84 lines
2.0 KiB
#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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