byte[] bytes; try { bytes = buf.readBytes(); } catch (BufferException e) { throw new UserAuthException("Failed to read byte array from message buffer", e);
private boolean parseGexReply(SSHPacket buffer) throws Buffer.BufferException, GeneralSecurityException, TransportException { byte[] K_S = buffer.readBytes(); byte[] f = buffer.readBytes(); byte[] sig = buffer.readBytes(); hostKey = new Buffer.PlainBuffer(K_S).readPublicKey(); dh.computeK(f); BigInteger k = dh.getK(); final Buffer.PlainBuffer buf = initializedBuffer() .putString(K_S) .putUInt32(minBits) .putUInt32(preferredBits) .putUInt32(maxBits) .putMPInt(((DH) dh).getP()) .putMPInt(((DH) dh).getG()) .putBytes(dh.getE()) .putBytes(f) .putMPInt(k); digest.update(buf.array(), buf.rpos(), buf.available()); H = digest.digest(); Signature signature = Factory.Named.Util.create(trans.getConfig().getSignatureFactories(), KeyType.fromKey(hostKey).toString()); signature.initVerify(hostKey); signature.update(H, 0, H.length); if (!signature.verify(sig)) throw new TransportException(DisconnectReason.KEY_EXCHANGE_FAILED, "KeyExchange signature verification failed"); return true; }
byte[] bytes; try { bytes = buf.readBytes(); } catch (BufferException e) { throw new UserAuthException("Failed to read byte array from message buffer", e);
private boolean parseGexReply(SSHPacket buffer) throws Buffer.BufferException, GeneralSecurityException, TransportException { byte[] K_S = buffer.readBytes(); byte[] f = buffer.readBytes(); byte[] sig = buffer.readBytes(); hostKey = new Buffer.PlainBuffer(K_S).readPublicKey(); dh.computeK(f); BigInteger k = dh.getK(); final Buffer.PlainBuffer buf = initializedBuffer() .putString(K_S) .putUInt32(minBits) .putUInt32(preferredBits) .putUInt32(maxBits) .putMPInt(((DH) dh).getP()) .putMPInt(((DH) dh).getG()) .putBytes(dh.getE()) .putBytes(f) .putMPInt(k); digest.update(buf.array(), buf.rpos(), buf.available()); H = digest.digest(); Signature signature = Factory.Named.Util.create(trans.getConfig().getSignatureFactories(), KeyType.fromKey(hostKey).toString()); signature.initVerify(hostKey); signature.update(H, 0, H.length); if (!signature.verify(sig)) throw new TransportException(DisconnectReason.KEY_EXCHANGE_FAILED, "KeyExchange signature verification failed"); return true; }