William Whyte
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 Feb 1 comment how to define the Truncated Polynomial? See for example purplemath.com/modules/polydiv.htm Jan 31 answered how to define the Truncated Polynomial? Dec 21 comment Secure, patent-free alternative to NTRU You're right, the statement in PATENTS.md is not consistent with the GPL. That wasn't the intent, it is meant to be fully GPL-compliant. We're changing that now. Dec 20 awarded Yearling Dec 20 answered Secure, patent-free alternative to NTRU Dec 12 answered Reduced message expansion in NTRU Sep 24 awarded Autobiographer Apr 9 answered RSA: Letting $p$ and $q$ have different bit-size Jan 7 comment Implementations of Ntru TLS BTW, NTRU is now available under the GPL and other FOSS licenses: github.com/NTRUOpenSourceProject/ntru-crypto. The open-source version has not yet been fully integrated into CyaSSL though. Nov 28 comment Is the “secure-as-worst-case” version of NTRU patented? The patents are now available under GPL. Go use them! Sep 10 answered Is the “secure-as-worst-case” version of NTRU patented? Jul 24 answered Secret sharing scheme with possibility to change the secret May 11 awarded Yearling Aug 6 awarded Student Aug 6 asked How long does it take to extract a key from a FIPS-140 Level 2 device? May 19 comment NTRUEncrypt - Choose the initial random polynomial If p = 3 then you're using trinary, so let's say that r, g and m have dr, dg, dm +1s and -1s respectively and f has df +1s and (df-1) -1s. To avoid decryption failures altogether you need p*2dr*2dg + (2df-1)*2dm < 128, so df, dm, dr, dg all need to be around sqrt(128) or, basically, 11. If you're taking them much larger than this you'll see significant numbers of decryption failures. You want to be able to take df etc to be around N/3. If you take q to be the power of 2 above (N^2)/9 you will certainly have no decryption failures. Lower values of q give you some risk. May 17 comment NTRUEncrypt - Choose the initial random polynomial For binary, df is the number of 1s; for trinary with "flat" f, you have df 1s and df-1 -1s (or you could define df so that there are df+1 1s and df -1s, it doesn't matter much); for trinary with form 1+pF, you have df +1s and df -1s. May 16 answered NTRUEncrypt - Choose the initial random polynomial May 13 awarded Necromancer May 11 awarded Teacher