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Re: Win95 Blowfish Implementation
>So correct me if any of the following statements are incorrect:
>1. Blowfish is not patented and can be used without royalty.
According to Schneier's book (which should be authoritative,
since it's his algorithm), the algorithm is unpatented
and the C code in the back of the book is public domain.
>2. SHA can be used without royalty.
Yup. Use SHA-1 rather than the original SHA, though; the NSA
"updated" it in ways that do appear to strengthen it.
>3. MD5 can be used without royalty if the RSAREF library is used,
>and if the proper credit is given to RSA.
>Also, can the MD5 algorithm be used outside the RSAREF library? In
>other words, can I rewrite the code to take in effect MFC classes?
Yeah. I think there's even an RFC that comments on it.
# Thanks; Bill
# Bill Stewart +1-415-442-2215 [email protected]
# http://www.idiom.com/~wcs
# Dispel Authority!