public void InvalidInput_FromBase64Transform()
{
byte[] data_4bytes = Text.Encoding.ASCII.GetBytes("aaaa");
ICryptoTransform transform = new FromBase64Transform();
InvalidInput_Base64Transform(transform);
// These exceptions only thrown in FromBase
transform.Dispose();
Assert.Throws<ObjectDisposedException>(() => transform.TransformBlock(data_4bytes, 0, 4, null, 0));
Assert.Throws<ObjectDisposedException>(() => transform.TransformFinalBlock(Array.Empty<byte>(), 0, 0));
}
public void InvalidInput_FromBase64Transform()
{
byte[] data_4bytes = Text.Encoding.ASCII.GetBytes("aaaa");
ICryptoTransform transform = new FromBase64Transform();
InvalidInput_Base64Transform(transform);
// These exceptions only thrown in FromBase
transform.Dispose();
Assert.Throws <ObjectDisposedException>(() => transform.TransformBlock(data_4bytes, 0, 4, null, 0));
Assert.Throws <ObjectDisposedException>(() => transform.TransformFinalBlock(Array.Empty <byte>(), 0, 0));
}
public void InvalidInput_FromBase64Transform()
{
byte[] data_4bytes = Text.Encoding.ASCII.GetBytes("aaaa");
ICryptoTransform transform = new FromBase64Transform();
AssertExtensions.Throws <ArgumentNullException>("inputBuffer", () => transform.TransformBlock(null, 0, 0, null, 0));
AssertExtensions.Throws <ArgumentOutOfRangeException>("inputOffset", () => transform.TransformBlock(Array.Empty <byte>(), -1, 0, null, 0));
AssertExtensions.Throws <ArgumentNullException>("outputBuffer", () => transform.TransformBlock(data_4bytes, 0, 4, null, 0));
AssertExtensions.Throws <ArgumentOutOfRangeException>("inputCount", () => transform.TransformBlock(Array.Empty <byte>(), 0, 1, null, 0));
AssertExtensions.Throws <ArgumentException>(null, () => transform.TransformBlock(Array.Empty <byte>(), 1, 0, null, 0));
AssertExtensions.Throws <ArgumentNullException>("inputBuffer", () => transform.TransformFinalBlock(null, 0, 0));
AssertExtensions.Throws <ArgumentOutOfRangeException>("inputOffset", () => transform.TransformFinalBlock(Array.Empty <byte>(), -1, 0));
AssertExtensions.Throws <ArgumentOutOfRangeException>("inputOffset", () => transform.TransformFinalBlock(Array.Empty <byte>(), -1, 0));
AssertExtensions.Throws <ArgumentException>(null, () => transform.TransformFinalBlock(Array.Empty <byte>(), 1, 0));
// These exceptions only thrown in FromBase
transform.Dispose();
Assert.Throws <ObjectDisposedException>(() => transform.TransformBlock(data_4bytes, 0, 4, null, 0));
Assert.Throws <ObjectDisposedException>(() => transform.TransformFinalBlock(Array.Empty <byte>(), 0, 0));
}
//原始base64解码
public static byte[] Base64Decode(byte[] source)
{
if ((source == null) || (source.Length == 0))
{
throw new ArgumentException("source is not valid");
}
FromBase64Transform fb64 = null;
MemoryStream stm = null;
try
{
fb64 = new FromBase64Transform();
stm = new MemoryStream();
int pos = 0;
byte[] buff;
while (pos + 4 < source.Length)
{
buff = fb64.TransformFinalBlock(source, pos, 4);
stm.Write(buff, 0, buff.Length);
pos += 4;
}
buff = fb64.TransformFinalBlock(source, pos, source.Length - pos);
stm.Write(buff, 0, buff.Length);
return(stm.ToArray());
}
finally
{
if (fb64 != null)
{
fb64.Dispose();
}
if (stm != null)
{
stm.Dispose();
}
}
}
