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Spoof TLS/JA3/JA4 and HTTP/2 fingerprints in Java
package org.bouncycastle.tls.crypto.impl.jcajce;
import java.io.IOException;
import java.security.KeyPair;
import java.security.PublicKey;
import org.bouncycastle.tls.crypto.TlsAgreement;
import org.bouncycastle.tls.crypto.TlsSecret;
/**
* Support class for ephemeral Elliptic Curve Diffie-Hellman using the JCE.
*/
public class JceTlsECDH
implements TlsAgreement
{
protected final JceTlsECDomain domain;
protected KeyPair localKeyPair;
protected PublicKey peerPublicKey;
public JceTlsECDH(JceTlsECDomain domain)
{
this.domain = domain;
}
public byte[] generateEphemeral() throws IOException
{
this.localKeyPair = domain.generateKeyPair();
return domain.encodePublicKey(localKeyPair.getPublic());
}
public void receivePeerValue(byte[] peerValue) throws IOException
{
this.peerPublicKey = domain.decodePublicKey(peerValue);
}
public TlsSecret calculateSecret() throws IOException
{
return domain.calculateECDHAgreement(localKeyPair.getPrivate(), peerPublicKey);
}
}