79 lines
2.1 KiB
C#
79 lines
2.1 KiB
C#
using System;
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using System.Collections;
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using System.IO;
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using Org.BouncyCastle.Asn1;
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using Org.BouncyCastle.Asn1.X509;
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namespace Org.BouncyCastle.Crypto.Tls
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{
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/**
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* A representation for a certificate chain as used by an tls server.
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*/
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public class Certificate
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{
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/**
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* The certificates.
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*/
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internal X509CertificateStructure[] certs;
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/**
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* Parse the ServerCertificate message.
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*
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* @param is The stream where to parse from.
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* @return A Certificate object with the certs, the server has sended.
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* @throws IOException If something goes wrong during parsing.
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*/
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internal static Certificate Parse(
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Stream inStr)
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{
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X509CertificateStructure[] certs;
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int left = TlsUtilities.ReadUint24(inStr);
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ArrayList tmp = new ArrayList();
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while (left > 0)
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{
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int size = TlsUtilities.ReadUint24(inStr);
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left -= 3 + size;
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byte[] buf = new byte[size];
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TlsUtilities.ReadFully(buf, inStr);
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MemoryStream bis = new MemoryStream(buf, false);
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Asn1InputStream ais = new Asn1InputStream(bis);
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Asn1Object o = ais.ReadObject();
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tmp.Add(X509CertificateStructure.GetInstance(o));
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// if (bis.available() > 0)
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if (bis.Position < bis.Length)
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{
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throw new ArgumentException("Sorry, there is garbage data left after the certificate");
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}
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}
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// certs = new X509CertificateStructure[tmp.size()];
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// for (int i = 0; i < tmp.size(); i++)
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// {
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// certs[i] = (X509CertificateStructure)tmp.elementAt(i);
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// }
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certs = (X509CertificateStructure[]) tmp.ToArray(typeof(X509CertificateStructure));
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return new Certificate(certs);
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}
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/**
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* Private constructure from an cert array.
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*
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* @param certs The certs the chain should contain.
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*/
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private Certificate(
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X509CertificateStructure[] certs)
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{
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this.certs = certs;
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}
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/// <returns>An array which contains the certs, this chain contains.</returns>
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public X509CertificateStructure[] GetCerts()
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{
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// X509CertificateStructure[] result = new X509CertificateStructure[certs.Length];
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// Array.Copy(certs, 0, result, 0, certs.Length);
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// return result;
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return (X509CertificateStructure[]) certs.Clone();
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}
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}
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}
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