116 lines
2.7 KiB
C#
116 lines
2.7 KiB
C#
using System;
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using System.IO;
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using System.Text;
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namespace Org.BouncyCastle.Utilities.Encoders
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{
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public sealed class Base64
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{
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// private static readonly IEncoder encoder = new Base64Encoder();
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private Base64()
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{
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}
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/**
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* encode the input data producing a base 64 encoded byte array.
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*
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* @return a byte array containing the base 64 encoded data.
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*/
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public static byte[] Encode(
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byte[] data)
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{
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string s = Convert.ToBase64String(data, 0, data.Length);
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return Encoding.ASCII.GetBytes(s);
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// MemoryStream bOut = new MemoryStream();
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// encoder.Encode(data, 0, data.Length, bOut);
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// return bOut.ToArray();
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}
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/**
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* Encode the byte data to base 64 writing it to the given output stream.
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*
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* @return the number of bytes produced.
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*/
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public static int Encode(
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byte[] data,
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Stream outStream)
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{
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string s = Convert.ToBase64String(data, 0, data.Length);
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byte[] encoded = Encoding.ASCII.GetBytes(s);
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outStream.Write(encoded, 0, encoded.Length);
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return encoded.Length;
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// return encoder.Encode(data, 0, data.Length, outStream);
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}
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/**
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* Encode the byte data to base 64 writing it to the given output stream.
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*
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* @return the number of bytes produced.
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*/
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public static int Encode(
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byte[] data,
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int off,
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int length,
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Stream outStream)
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{
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string s = Convert.ToBase64String(data, off, length);
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byte[] encoded = Encoding.ASCII.GetBytes(s);
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outStream.Write(encoded, 0, encoded.Length);
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return encoded.Length;
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// return encoder.Encode(data, off, length, outStream);
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}
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/**
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* decode the base 64 encoded input data. It is assumed the input data is valid.
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*
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* @return a byte array representing the decoded data.
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*/
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public static byte[] Decode(
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byte[] data)
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{
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string s = Encoding.ASCII.GetString(data, 0, data.Length);
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return Convert.FromBase64String(s);
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// MemoryStream bOut = new MemoryStream();
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// encoder.Decode(data, 0, data.Length, bOut);
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// return bOut.ToArray();
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}
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/**
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* decode the base 64 encoded string data - whitespace will be ignored.
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*
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* @return a byte array representing the decoded data.
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*/
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public static byte[] Decode(
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string data)
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{
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return Convert.FromBase64String(data);
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// MemoryStream bOut = new MemoryStream();
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// encoder.DecodeString(data, bOut);
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// return bOut.ToArray();
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}
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/**
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* decode the base 64 encoded string data writing it to the given output stream,
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* whitespace characters will be ignored.
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*
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* @return the number of bytes produced.
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*/
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public static int Decode(
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string data,
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Stream outStream)
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{
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byte[] decoded = Decode(data);
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outStream.Write(decoded, 0, decoded.Length);
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return decoded.Length;
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// return encoder.DecodeString(data, outStream);
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}
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}
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}
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