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Packages/com.tivadar.best.http/Runtime/3rdParty/BouncyCastle/x509/PrincipalUtil.cs

@@ -0,0 +1,74 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+using System.IO;
+
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Security.Certificates;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.X509
+{
+	/// <remarks>
+	/// A utility class that will extract X509Principal objects from X.509 certificates.
+	/// <p>
+	/// Use this in preference to trying to recreate a principal from a string, not all
+	/// DNs are what they should be, so it's best to leave them encoded where they
+	/// can be.</p>
+	/// </remarks>
+	public class PrincipalUtilities
+	{
+		/// <summary>Return the issuer of the given cert as an X509Principal.</summary>
+		public static X509Name GetIssuerX509Principal(
+			X509Certificate cert)
+		{
+			try
+			{
+				TbsCertificateStructure tbsCert = TbsCertificateStructure.GetInstance(
+					Asn1Object.FromByteArray(cert.GetTbsCertificate()));
+
+				return tbsCert.Issuer;
+			}
+			catch (Exception e)
+			{
+				throw new CertificateEncodingException("Could not extract issuer", e);
+			}
+		}
+
+		/// <summary>Return the subject of the given cert as an X509Principal.</summary>
+		public static X509Name GetSubjectX509Principal(
+			X509Certificate cert)
+		{
+			try
+			{
+				TbsCertificateStructure tbsCert = TbsCertificateStructure.GetInstance(
+					Asn1Object.FromByteArray(cert.GetTbsCertificate()));
+
+				return tbsCert.Subject;
+			}
+			catch (Exception e)
+			{
+				throw new CertificateEncodingException("Could not extract subject", e);
+			}
+		}
+
+		/// <summary>Return the issuer of the given CRL as an X509Principal.</summary>
+		public static X509Name GetIssuerX509Principal(
+			X509Crl crl)
+		{
+			try
+			{
+				TbsCertificateList tbsCertList = TbsCertificateList.GetInstance(
+					Asn1Object.FromByteArray(crl.GetTbsCertList()));
+
+				return tbsCertList.Issuer;
+			}
+			catch (Exception e)
+			{
+				throw new CrlException("Could not extract issuer", e);
+			}
+		}
+	}
+}
+#pragma warning restore
+#endif