The system JD uses is close to as good as it gets (assuming proper implementation). This is possible to the standardization of strong cryptographic protocols (and hash functions, such as SHA).
You're using some strong wording there. Do you have any source or quotes to underline this or are you just wildly speculating?
sha is currently the industry standard hashing algo. Quck google shows us that it is used in the most sensitive applications:
The SHA-2 hash function is implemented in some widely used security applications and protocols, including TLS and SSL, PGP, SSH, S/MIME, Bitcoin, PPCoin and IPsec.
i do not feel that my statement is so strong: again,
assuming proper implementation, it is as good as it currently gets. There are no known, feasible attacks on sha.