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Packages/com.tivadar.best.http/Runtime/3rdParty/BouncyCastle/asn1/x9/X9FieldElement.cs

@@ -0,0 +1,56 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Math;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Math.EC;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.X9
+{
+    /**
+     * Class for processing an ECFieldElement as a DER object.
+     */
+    public class X9FieldElement
+        : Asn1Encodable
+    {
+        private ECFieldElement f;
+
+        public X9FieldElement(
+            ECFieldElement f)
+        {
+            this.f = f;
+        }
+
+        public ECFieldElement Value
+        {
+            get { return f; }
+        }
+
+        /**
+         * Produce an object suitable for an Asn1OutputStream.
+         * <pre>
+         *  FieldElement ::= OCTET STRING
+         * </pre>
+         * <p>
+         * <ol>
+         * <li> if <i>q</i> is an odd prime then the field element is
+         * processed as an Integer and converted to an octet string
+         * according to x 9.62 4.3.1.</li>
+         * <li> if <i>q</i> is 2<sup>m</sup> then the bit string
+         * contained in the field element is converted into an octet
+         * string with the same ordering padded at the front if necessary.
+         * </li>
+         * </ol>
+         * </p>
+         */
+        public override Asn1Object ToAsn1Object()
+        {
+            int byteCount = X9IntegerConverter.GetByteLength(f);
+            byte[] paddedBigInteger = X9IntegerConverter.IntegerToBytes(f.ToBigInteger(), byteCount);
+
+            return new DerOctetString(paddedBigInteger);
+        }
+    }
+}
+#pragma warning restore
+#endif