Initial import of old CVS repository

1 files changed, 130 insertions, 0 deletions

diff --git a/crypto/src/util/encoders/Hex.cs b/crypto/src/util/encoders/Hex.cs
new file mode 100644
index 000000000..3540a9d1e
--- /dev/null
+++ b/crypto/src/util/encoders/Hex.cs
@@ -0,0 +1,130 @@
+using System;
+using System.IO;
+using System.Text;
+
+namespace Org.BouncyCastle.Utilities.Encoders
+{
+    /// <summary>
+    /// Class to decode and encode Hex.
+    /// </summary>
+    public sealed class Hex
+    {
+        private static readonly IEncoder encoder = new HexEncoder();
+
+        private Hex()
+        {
+        }
+
+        public static string ToHexString(
+            byte[] data)
+        {
+            return ToHexString(data, 0, data.Length);
+        }
+
+        public static string ToHexString(
+            byte[]	data,
+            int		off,
+            int		length)
+        {
+            byte[] hex = Encode(data, off, length);
+            return Strings.FromAsciiByteArray(hex);
+        }
+
+        /**
+         * encode the input data producing a Hex encoded byte array.
+         *
+         * @return a byte array containing the Hex encoded data.
+         */
+        public static byte[] Encode(
+            byte[] data)
+        {
+            return Encode(data, 0, data.Length);
+        }
+
+        /**
+         * encode the input data producing a Hex encoded byte array.
+         *
+         * @return a byte array containing the Hex encoded data.
+         */
+        public static byte[] Encode(
+            byte[]	data,
+            int		off,
+            int		length)
+        {
+            MemoryStream bOut = new MemoryStream(length * 2);
+
+            encoder.Encode(data, off, length, bOut);
+
+            return bOut.ToArray();
+        }
+
+        /**
+         * Hex encode the byte data writing it to the given output stream.
+         *
+         * @return the number of bytes produced.
+         */
+        public static int Encode(
+            byte[]	data,
+            Stream	outStream)
+        {
+            return encoder.Encode(data, 0, data.Length, outStream);
+        }
+
+        /**
+         * Hex encode the byte data writing it to the given output stream.
+         *
+         * @return the number of bytes produced.
+         */
+        public static int Encode(
+            byte[]	data,
+            int		off,
+            int		length,
+            Stream	outStream)
+        {
+            return encoder.Encode(data, off, length, outStream);
+        }
+
+        /**
+         * decode the Hex encoded input data. It is assumed the input data is valid.
+         *
+         * @return a byte array representing the decoded data.
+         */
+        public static byte[] Decode(
+            byte[] data)
+        {
+            MemoryStream bOut = new MemoryStream((data.Length + 1) / 2);
+
+            encoder.Decode(data, 0, data.Length, bOut);
+
+            return bOut.ToArray();
+        }
+
+        /**
+         * decode the Hex encoded string data - whitespace will be ignored.
+         *
+         * @return a byte array representing the decoded data.
+         */
+        public static byte[] Decode(
+            string data)
+        {
+            MemoryStream bOut = new MemoryStream((data.Length + 1) / 2);
+
+            encoder.DecodeString(data, bOut);
+
+            return bOut.ToArray();
+        }
+
+        /**
+         * decode the Hex encoded string data writing it to the given output stream,
+         * whitespace characters will be ignored.
+         *
+         * @return the number of bytes produced.
+         */
+        public static int Decode(
+            string	data,
+            Stream	outStream)
+        {
+            return encoder.DecodeString(data, outStream);
+        }
+    }
+}