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Remove unused PGP signature artefacts from PGPAuthenticationSignatureGenerator

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This commit is contained in:
Christian Hagau
2017-11-11 00:00:00 +00:00
parent 1f7c7f49d4
commit 48b8f97b78
1 changed files with 6 additions and 76 deletions
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82
libkeychain/src/main/java/org/bouncycastle/openpgp/PGPAuthenticationSignatureGenerator.java
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@@ -3,12 +3,10 @@ package org.bouncycastle.openpgp;
import org.bouncycastle.bcpg.MPInteger; import org.bouncycastle.bcpg.MPInteger;
import org.bouncycastle.bcpg.PublicKeyAlgorithmTags; import org.bouncycastle.bcpg.PublicKeyAlgorithmTags;
import org.bouncycastle.bcpg.SignaturePacket; import org.bouncycastle.bcpg.SignaturePacket;
import org.bouncycastle.bcpg.SignatureSubpacket;
import org.bouncycastle.openpgp.operator.PGPContentSigner; import org.bouncycastle.openpgp.operator.PGPContentSigner;
import org.bouncycastle.openpgp.operator.PGPContentSignerBuilder; import org.bouncycastle.openpgp.operator.PGPContentSignerBuilder;
import org.bouncycastle.util.BigIntegers; import org.bouncycastle.util.BigIntegers;
import java.io.ByteArrayOutputStream;
import java.io.IOException; import java.io.IOException;
import java.io.OutputStream; import java.io.OutputStream;
import java.math.BigInteger; import java.math.BigInteger;
@@ -22,8 +20,6 @@ public class PGPAuthenticationSignatureGenerator
private PGPContentSignerBuilder contentSignerBuilder; private PGPContentSignerBuilder contentSignerBuilder;
private PGPContentSigner contentSigner; private PGPContentSigner contentSigner;
private int sigType; private int sigType;
private byte lastb;
private int providedKeyAlgorithm = -1;
/** /**
* Create a signature generator built on the passed in contentSignerBuilder. * Create a signature generator built on the passed in contentSignerBuilder.
@@ -51,49 +47,18 @@ public class PGPAuthenticationSignatureGenerator
contentSigner = contentSignerBuilder.build(signatureType, key); contentSigner = contentSignerBuilder.build(signatureType, key);
sigOut = contentSigner.getOutputStream(); sigOut = contentSigner.getOutputStream();
sigType = contentSigner.getType(); sigType = contentSigner.getType();
lastb = 0;
if (providedKeyAlgorithm >= 0 && providedKeyAlgorithm != contentSigner.getKeyAlgorithm())
{
throw new PGPException("key algorithm mismatch");
}
} }
public void update( public void update(
byte b) byte b)
{ {
if (sigType == PGPSignature.CANONICAL_TEXT_DOCUMENT) byteUpdate(b);
{
if (b == '\r')
{
byteUpdate((byte)'\r');
byteUpdate((byte)'\n');
}
else if (b == '\n')
{
if (lastb != '\r')
{
byteUpdate((byte)'\r');
byteUpdate((byte)'\n');
}
}
else
{
byteUpdate(b);
}
lastb = b;
}
else
{
byteUpdate(b);
}
} }
public void update( public void update(
byte[] b) byte[] b)
{ {
this.update(b, 0, b.length); update(b, 0, b.length);
} }
public void update( public void update(
@@ -101,19 +66,8 @@ public class PGPAuthenticationSignatureGenerator
int off, int off,
int len) int len)
{ {
if (sigType == PGPSignature.CANONICAL_TEXT_DOCUMENT)
{ blockUpdate(b, off, len);
int finish = off + len;
for (int i = off; i != finish; i++)
{
this.update(b[i]);
}
}
else
{
blockUpdate(b, off, len);
}
} }
private void byteUpdate(byte b) private void byteUpdate(byte b)
@@ -150,25 +104,6 @@ public class PGPAuthenticationSignatureGenerator
throws PGPException throws PGPException
{ {
MPInteger[] sigValues; MPInteger[] sigValues;
ByteArrayOutputStream sOut = new ByteArrayOutputStream();
SignatureSubpacket[] hPkts, unhPkts;
hPkts = new SignatureSubpacket[0];
unhPkts = new SignatureSubpacket[0];
try
{
ByteArrayOutputStream hOut = new ByteArrayOutputStream();
byte[] data = hOut.toByteArray();
sOut.write(data);
}
catch (IOException e)
{
throw new PGPException("exception encoding hashed data.", e);
}
byte[] trailer = sOut.toByteArray();
blockUpdate(trailer, 0, trailer.length);
if (contentSigner.getKeyAlgorithm() == PublicKeyAlgorithmTags.RSA_SIGN if (contentSigner.getKeyAlgorithm() == PublicKeyAlgorithmTags.RSA_SIGN
|| contentSigner.getKeyAlgorithm() == PublicKeyAlgorithmTags.RSA_GENERAL) // an RSA signature || contentSigner.getKeyAlgorithm() == PublicKeyAlgorithmTags.RSA_GENERAL) // an RSA signature
@@ -190,12 +125,7 @@ public class PGPAuthenticationSignatureGenerator
sigValues = PGPUtil.dsaSigToMpi(contentSigner.getSignature()); sigValues = PGPUtil.dsaSigToMpi(contentSigner.getSignature());
} }
byte[] digest = contentSigner.getDigest(); return new PGPSignature(new SignaturePacket(sigType, contentSigner.getKeyID(), contentSigner.getKeyAlgorithm(),
byte[] fingerPrint = new byte[2]; contentSigner.getHashAlgorithm(), null, null, null, sigValues));
fingerPrint[0] = digest[0];
fingerPrint[1] = digest[1];
return new PGPSignature(new SignaturePacket(sigType, contentSigner.getKeyID(), contentSigner.getKeyAlgorithm(), contentSigner.getHashAlgorithm(), hPkts, unhPkts, fingerPrint, sigValues));
} }
} }