aQute.libg.cryptography.Verifier Maven / Gradle / Ivy
package aQute.libg.cryptography;
import java.io.IOException;
import java.io.OutputStream;
import java.security.Signature;
import java.security.SignatureException;
public class Verifier extends OutputStream {
final Signature signature;
final Digest d;
Verifier(Signature s, Digest d) {
this.signature = s;
this.d = d;
}
@Override
public void write(byte[] buffer, int offset, int length) throws IOException {
try {
signature.update(buffer, offset, length);
} catch (SignatureException e) {
throw new IOException(e.getLocalizedMessage());
}
}
@Override
public void write(int b) throws IOException {
try {
signature.update((byte) b);
} catch (SignatureException e) {
throw new IOException(e.getLocalizedMessage());
}
}
public boolean verify() throws Exception {
return signature.verify(d.digest());
}
}