public static PublicKey decodePublicKey(DataInput buffer, byte[] receivedRawPublicKey)
throws InvalidKeyException, NoSuchAlgorithmException, InvalidKeySpecException {
buffer.readBytes(receivedRawPublicKey);
X509EncodedKeySpec pubKeySpec = new X509EncodedKeySpec(receivedRawPublicKey);
KeyFactory keyFactory = KeyFactory.getInstance("DSA");
final PublicKey receivedPublicKey = keyFactory.generatePublic(pubKeySpec);
return receivedPublicKey;
}
@Override
public void copyBytes(DataInput input, long numBytes) throws IOException {
assert numBytes >= 0 : "numBytes=" + numBytes;
while (numBytes > 0) {
if (bufferPosition == bufferLength) {
currentBufferIndex++;
switchCurrentBuffer();
}
int toCopy = currentBuffer.length - bufferPosition;
if (numBytes < toCopy) {
toCopy = (int) numBytes;
}
input.readBytes(currentBuffer, bufferPosition, toCopy, false);
numBytes -= toCopy;
bufferPosition += toCopy;
}
}
