Rewrite bytecode
into a custom VM only Deluxor reads

Deluxor is a next‑generation Java obfuscator and bytecode virtualizer. It lifts selected methods from compiled JARs into a custom VM with its own opcodes, dispatch, and layered interpreters. The goal: raise the time, expertise, and tooling cost of reverse engineering — making Java obfuscation truly effective.

public boolean authenticate(
    String username,
    String password
) {

    if (username == null) {
        return false;
    }

    if (password == null) {
        return false;
    }

    return verify(
        username,
        password,
        apiKey
    );
}

; class a  method a(String,String)Z chunk 0x1F4

0000  VENTER frame[4] guard=deluXor
0006  VARG   r1 <- a[0]
000c  VNULLQ r1      jz → 0x004A
0018  VLDF   r3 <- this.b
; apiKey
001e  VXORK  r2 ^= k[0x1A]
; 0x5F3A9C2D
0026  VWILD  0x7C (III)J
; dispatch
002e  VINVK  #f [r1,r2,r3]
0036  VTRUE  → ret
0050  VLEAVE wipe frame; rotate k