| /* GENERATED SOURCE. DO NOT MODIFY. */ |
| package com.android.org.bouncycastle.crypto.digests; |
| |
| import java.io.ByteArrayOutputStream; |
| |
| import com.android.org.bouncycastle.crypto.Digest; |
| import com.android.org.bouncycastle.util.Arrays; |
| |
| |
| /** |
| * @hide This class is not part of the Android public SDK API |
| */ |
| public class NullDigest |
| implements Digest |
| { |
| private OpenByteArrayOutputStream bOut = new OpenByteArrayOutputStream(); |
| |
| public String getAlgorithmName() |
| { |
| return "NULL"; |
| } |
| |
| public int getDigestSize() |
| { |
| return bOut.size(); |
| } |
| |
| public void update(byte in) |
| { |
| bOut.write(in); |
| } |
| |
| public void update(byte[] in, int inOff, int len) |
| { |
| bOut.write(in, inOff, len); |
| } |
| |
| public int doFinal(byte[] out, int outOff) |
| { |
| int size = bOut.size(); |
| |
| bOut.copy(out, outOff); |
| |
| reset(); |
| |
| return size; |
| } |
| |
| public void reset() |
| { |
| bOut.reset(); |
| } |
| |
| private static class OpenByteArrayOutputStream |
| extends ByteArrayOutputStream |
| { |
| public void reset() |
| { |
| super.reset(); |
| |
| Arrays.clear(buf); |
| } |
| |
| void copy(byte[] out, int outOff) |
| { |
| System.arraycopy(buf, 0, out, outOff, this.size()); |
| } |
| } |
| } |