- Initial commit

Runtime/3rdParty/BouncyCastle/asn1/x509/AuthorityKeyIdentifier.cs

@@ -0,0 +1,187 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Digests;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Math;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Utilities.Encoders;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509
+{
+    /**
+     * The AuthorityKeyIdentifier object.
+     * <pre>
+     * id-ce-authorityKeyIdentifier OBJECT IDENTIFIER ::=  { id-ce 35 }
+     *
+     *   AuthorityKeyIdentifier ::= Sequence {
+     *      keyIdentifier             [0] IMPLICIT KeyIdentifier           OPTIONAL,
+     *      authorityCertIssuer       [1] IMPLICIT GeneralNames            OPTIONAL,
+     *      authorityCertSerialNumber [2] IMPLICIT CertificateSerialNumber OPTIONAL  }
+     *
+     *   KeyIdentifier ::= OCTET STRING
+     * </pre>
+     *
+     */
+    public class AuthorityKeyIdentifier
+        : Asn1Encodable
+    {
+        public static AuthorityKeyIdentifier GetInstance(Asn1TaggedObject obj, bool explicitly)
+        {
+            return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
+        }
+
+		public static AuthorityKeyIdentifier GetInstance(object obj)
+        {
+            if (obj is AuthorityKeyIdentifier)
+                return (AuthorityKeyIdentifier)obj;
+            if (obj is X509Extension)
+                return GetInstance(X509Extension.ConvertValueToObject((X509Extension)obj));
+            if (obj == null)
+                return null;
+            return new AuthorityKeyIdentifier(Asn1Sequence.GetInstance(obj));
+		}
+
+        public static AuthorityKeyIdentifier FromExtensions(X509Extensions extensions)
+        {
+            return GetInstance(X509Extensions.GetExtensionParsedValue(extensions, X509Extensions.AuthorityKeyIdentifier));
+        }
+
+        private readonly Asn1OctetString keyidentifier;
+        private readonly GeneralNames certissuer;
+        private readonly DerInteger certserno;
+
+        protected internal AuthorityKeyIdentifier(
+            Asn1Sequence seq)
+        {
+            foreach (Asn1Encodable element in seq)
+			{
+                Asn1TaggedObject obj = Asn1TaggedObject.GetInstance(element);
+
+				switch (obj.TagNo)
+                {
+				case 0:
+					this.keyidentifier = Asn1OctetString.GetInstance(obj, false);
+					break;
+				case 1:
+					this.certissuer = GeneralNames.GetInstance(obj, false);
+					break;
+				case 2:
+					this.certserno = DerInteger.GetInstance(obj, false);
+					break;
+				default:
+					throw new ArgumentException("illegal tag");
+                }
+            }
+        }
+
+		/**
+         *
+         * Calulates the keyidentifier using a SHA1 hash over the BIT STRING
+         * from SubjectPublicKeyInfo as defined in RFC2459.
+         *
+         * Example of making a AuthorityKeyIdentifier:
+         * <pre>
+	     *   SubjectPublicKeyInfo apki = new SubjectPublicKeyInfo((ASN1Sequence)new ASN1InputStream(
+		 *       publicKey.getEncoded()).readObject());
+         *   AuthorityKeyIdentifier aki = new AuthorityKeyIdentifier(apki);
+         * </pre>
+         *
+         **/
+        public AuthorityKeyIdentifier(
+            SubjectPublicKeyInfo spki)
+            : this(spki, null, null)
+        {
+        }
+
+        /**
+         * create an AuthorityKeyIdentifier with the GeneralNames tag and
+         * the serial number provided as well.
+         */
+        public AuthorityKeyIdentifier(
+            SubjectPublicKeyInfo	spki,
+            GeneralNames			name,
+            BigInteger				serialNumber)
+        {
+            IDigest digest = new Sha1Digest();
+            byte[] resBuf = new byte[digest.GetDigestSize()];
+			byte[] bytes = spki.PublicKeyData.GetBytes();
+            digest.BlockUpdate(bytes, 0, bytes.Length);
+            digest.DoFinal(resBuf, 0);
+
+			this.keyidentifier = new DerOctetString(resBuf);
+            this.certissuer = name;
+            this.certserno = serialNumber == null ? null : new DerInteger(serialNumber);
+        }
+
+        /**
+		 * create an AuthorityKeyIdentifier with the GeneralNames tag and
+		 * the serial number provided.
+		 */
+		public AuthorityKeyIdentifier(
+			GeneralNames	name,
+			BigInteger		serialNumber)
+            : this((byte[])null, name, serialNumber)
+		{
+		}
+
+		/**
+		 * create an AuthorityKeyIdentifier with a precomputed key identifier
+		 */
+		public AuthorityKeyIdentifier(
+			byte[] keyIdentifier)
+            : this(keyIdentifier, null, null)
+		{
+		}
+
+        /**
+		 * create an AuthorityKeyIdentifier with a precomupted key identifier
+		 * and the GeneralNames tag and the serial number provided as well.
+		 */
+		public AuthorityKeyIdentifier(
+			byte[]			keyIdentifier,
+			GeneralNames	name,
+			BigInteger		serialNumber)
+		{
+			this.keyidentifier = keyIdentifier == null ? null : new DerOctetString(keyIdentifier);
+			this.certissuer = name;
+			this.certserno = serialNumber == null ? null : new DerInteger(serialNumber);
+		}
+
+		public byte[] GetKeyIdentifier()
+        {
+			return keyidentifier == null ? null : keyidentifier.GetOctets();
+        }
+
+		public GeneralNames AuthorityCertIssuer
+		{
+			get { return certissuer; }
+		}
+
+		public BigInteger AuthorityCertSerialNumber
+        {
+            get { return certserno == null ? null : certserno.Value; }
+        }
+
+        /**
+         * Produce an object suitable for an Asn1OutputStream.
+         */
+        public override Asn1Object ToAsn1Object()
+        {
+            Asn1EncodableVector v = new Asn1EncodableVector();
+            v.AddOptionalTagged(false, 0, keyidentifier);
+            v.AddOptionalTagged(false, 1, certissuer);
+            v.AddOptionalTagged(false, 2, certserno);
+            return new DerSequence(v);
+        }
+
+		public override string ToString()
+        {
+            string keyID = (keyidentifier != null) ? Hex.ToHexString(keyidentifier.GetOctets()) : "null";
+
+            return "AuthorityKeyIdentifier: KeyID(" + keyID + ")";
+        }
+    }
+}
+#pragma warning restore
+#endif