Package google.registry.rde

Class RydePgpSigningOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

google.registry.util.ImprovedOutputStream

google.registry.rde.RydePgpSigningOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class RydePgpSigningOutputStream
extends ImprovedOutputStream

OpenPGP detached signing service that wraps an OutputStream.

This is the outermost layer. It signs the resulting file without modifying its bytes, instead generating an out-of-band .asc signature file. This is basically a SHA-256 checksum of the deposit file that's signed with our RSA private key. This allows the people who receive a deposit to check the signature against our public key so they can know the data hasn't been forged.

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor	Description
RydePgpSigningOutputStream(OutputStream os, org.bouncycastle.openpgp.PGPKeyPair signingKey)	Create a signer that wraps os and generates a detached signature using signingKey.

Method Summary

Modifier and Type	Method	Description
byte[]	getSignature()	Returns the byte contents for the detached .asc signature file.
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class google.registry.util.ImprovedOutputStream

close, getBytesWritten, onClose, write

Methods inherited from class java.io.FilterOutputStream

flush

Methods inherited from class java.io.OutputStream

nullOutputStream

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RydePgpSigningOutputStream

public RydePgpSigningOutputStream(@WillNotClose
 OutputStream os,
 org.bouncycastle.openpgp.PGPKeyPair signingKey)

Create a signer that wraps os and generates a detached signature using signingKey. After closing, you should call getSignature() to get the detached signature.

Parameters:

os - is the upstream OutputStream which is not closed by this object

Throws:

RuntimeException - to rethrow PGPException

Method Details

getSignature

public byte[] getSignature()
                    throws IOException,
org.bouncycastle.openpgp.PGPException

Returns the byte contents for the detached .asc signature file.

Throws:

IOException

org.bouncycastle.openpgp.PGPException

write

public void write(int b)
           throws IOException

Overrides:

write in class ImprovedOutputStream

Throws:

IOException

See Also:

• ImprovedOutputStream.write(int)

write

public void write(byte[] b,
 int off,
 int len)
           throws IOException

Overrides:

write in class ImprovedOutputStream

Throws:

IOException

See Also:

• ImprovedOutputStream.write(byte[], int, int)