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Spoof TLS/JA3/JA4 and HTTP/2 fingerprints in Java
package org.bouncycastle.tls;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* RFC 5246 7.4.1.4.1
*/
public class SignatureAndHashAlgorithm
{
public static final SignatureAndHashAlgorithm ecdsa_brainpoolP256r1tls13_sha256 =
create(SignatureScheme.ecdsa_brainpoolP256r1tls13_sha256);
public static final SignatureAndHashAlgorithm ecdsa_brainpoolP384r1tls13_sha384 =
create(SignatureScheme.ecdsa_brainpoolP384r1tls13_sha384);
public static final SignatureAndHashAlgorithm ecdsa_brainpoolP512r1tls13_sha512 =
create(SignatureScheme.ecdsa_brainpoolP512r1tls13_sha512);
public static final SignatureAndHashAlgorithm ed25519 =
create(SignatureScheme.ed25519);
public static final SignatureAndHashAlgorithm ed448 =
create(SignatureScheme.ed448);
public static final SignatureAndHashAlgorithm gostr34102012_256 =
create(HashAlgorithm.Intrinsic, SignatureAlgorithm.gostr34102012_256);
public static final SignatureAndHashAlgorithm gostr34102012_512 =
create(HashAlgorithm.Intrinsic, SignatureAlgorithm.gostr34102012_512);
public static final SignatureAndHashAlgorithm rsa_pss_rsae_sha256 =
create(SignatureScheme.rsa_pss_rsae_sha256);
public static final SignatureAndHashAlgorithm rsa_pss_rsae_sha384 =
create(SignatureScheme.rsa_pss_rsae_sha384);
public static final SignatureAndHashAlgorithm rsa_pss_rsae_sha512 =
create(SignatureScheme.rsa_pss_rsae_sha512);
public static final SignatureAndHashAlgorithm rsa_pss_pss_sha256 =
create(SignatureScheme.rsa_pss_pss_sha256);
public static final SignatureAndHashAlgorithm rsa_pss_pss_sha384 =
create(SignatureScheme.rsa_pss_pss_sha384);
public static final SignatureAndHashAlgorithm rsa_pss_pss_sha512 =
create(SignatureScheme.rsa_pss_pss_sha512);
public static SignatureAndHashAlgorithm getInstance(short hashAlgorithm, short signatureAlgorithm)
{
switch (hashAlgorithm)
{
case HashAlgorithm.Intrinsic:
return getInstanceIntrinsic(signatureAlgorithm);
default:
return create(hashAlgorithm, signatureAlgorithm);
}
}
private static SignatureAndHashAlgorithm getInstanceIntrinsic(short signatureAlgorithm)
{
switch (signatureAlgorithm)
{
case SignatureAlgorithm.ed25519:
return ed25519;
case SignatureAlgorithm.ed448:
return ed448;
case SignatureAlgorithm.gostr34102012_256:
return gostr34102012_256;
case SignatureAlgorithm.gostr34102012_512:
return gostr34102012_512;
case SignatureAlgorithm.rsa_pss_rsae_sha256:
return rsa_pss_rsae_sha256;
case SignatureAlgorithm.rsa_pss_rsae_sha384:
return rsa_pss_rsae_sha384;
case SignatureAlgorithm.rsa_pss_rsae_sha512:
return rsa_pss_rsae_sha512;
case SignatureAlgorithm.rsa_pss_pss_sha256:
return rsa_pss_pss_sha256;
case SignatureAlgorithm.rsa_pss_pss_sha384:
return rsa_pss_pss_sha384;
case SignatureAlgorithm.rsa_pss_pss_sha512:
return rsa_pss_pss_sha512;
case SignatureAlgorithm.ecdsa_brainpoolP256r1tls13_sha256:
return ecdsa_brainpoolP256r1tls13_sha256;
case SignatureAlgorithm.ecdsa_brainpoolP384r1tls13_sha384:
return ecdsa_brainpoolP384r1tls13_sha384;
case SignatureAlgorithm.ecdsa_brainpoolP512r1tls13_sha512:
return ecdsa_brainpoolP512r1tls13_sha512;
default:
return create(HashAlgorithm.Intrinsic, signatureAlgorithm);
}
}
public static SignatureAndHashAlgorithm create(int signatureScheme)
{
short hashAlgorithm = SignatureScheme.getHashAlgorithm(signatureScheme);
short signatureAlgorithm = SignatureScheme.getSignatureAlgorithm(signatureScheme);
return create(hashAlgorithm, signatureAlgorithm);
}
private static SignatureAndHashAlgorithm create(short hashAlgorithm, short signatureAlgorithm)
{
return new SignatureAndHashAlgorithm(hashAlgorithm, signatureAlgorithm);
}
protected final short hash;
protected final short signature;
/**
* @param hash {@link HashAlgorithm}
* @param signature {@link SignatureAlgorithm}
*/
public SignatureAndHashAlgorithm(short hash, short signature)
{
/*
* TODO]tls] The TlsUtils methods are inlined here to avoid circular static initialization
* b/w these classes. We should refactor parts of TlsUtils into separate classes. e.g. the
* TLS low-level encoding methods, and/or the SigAndHash registry and methods.
*/
// if (!TlsUtils.isValidUint8(hash))
if ((hash & 0xFF) != hash)
{
throw new IllegalArgumentException("'hash' should be a uint8");
}
// if (!TlsUtils.isValidUint8(signature))
if ((signature & 0xFF) != signature)
{
throw new IllegalArgumentException("'signature' should be a uint8");
}
this.hash = hash;
this.signature = signature;
}
/**
* @return {@link HashAlgorithm}
*/
public short getHash()
{
return hash;
}
/**
* @return {@link SignatureAlgorithm}
*/
public short getSignature()
{
return signature;
}
/**
* Encode this {@link SignatureAndHashAlgorithm} to an {@link OutputStream}.
*
* @param output the {@link OutputStream} to encode to.
* @throws IOException
*/
public void encode(OutputStream output)
throws IOException
{
TlsUtils.writeUint8(getHash(), output);
TlsUtils.writeUint8(getSignature(), output);
}
/**
* Parse a {@link SignatureAndHashAlgorithm} from an {@link InputStream}.
*
* @param input the {@link InputStream} to parse from.
* @return a {@link SignatureAndHashAlgorithm} object.
* @throws IOException
*/
public static SignatureAndHashAlgorithm parse(InputStream input)
throws IOException
{
short hash = TlsUtils.readUint8(input);
short signature = TlsUtils.readUint8(input);
return getInstance(hash, signature);
}
public boolean equals(Object obj)
{
if (!(obj instanceof SignatureAndHashAlgorithm))
{
return false;
}
SignatureAndHashAlgorithm other = (SignatureAndHashAlgorithm)obj;
return other.getHash() == getHash() && other.getSignature() == getSignature();
}
public int hashCode()
{
return (getHash() << 16) | getSignature();
}
public String toString()
{
return "{" + HashAlgorithm.getText(hash) + "," + SignatureAlgorithm.getText(signature) + "}";
}
}