I am developing a product that would use GOST for encrypting data streams. This is mostly beacuse its design and simplicity hold considerable aesthetic value, atleast for me. Most of the related text I have read indicates that some SBOX sets can be cryptographically weak, and its a good idea to use SBOX data as key data instead. Pointers? -- Powell lingered. "How's Earth?" It was a conventional enough question and Muller gave the conventional answer, "Still spinning." -- "Reason", Asimov. ================================================================== Vipul Ved Prakash | - Electronic Security & Crypto vipul@best.com | - Web Objects 91 11 2233328 | - PERL Development 198 Madhuban IP Extension | - Linux & Open Systems Delhi, INDIA 110 092 | - Networked Virtual Spaces