#[0] explain this pearl dc code step by step. A hint. The code involves RSA and was at the forefront of the "crypto wars" of the 90s.

print pack"C*",split/\D+/,`echo "16iII*o\U@{$/=$z;[(pop,pop,unpack"H*",<>

)]}\EsMsKsN0[lN*1lK[d2%Sa2/d0