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In some research work in 2001, it is stated that test vectors were not publicly available at the time. Then in this ESSS1v2 standard under IEEE1363 here , the appendix B mentions that the test vectors will be added in future versions. I haven't found any. Where could I get the test vectors for NTRU?

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  • $\begingroup$ github.com/NTRUOpenSourceProject/ntru-crypto/blob/master/… $\endgroup$
    – cygnusv
    Aug 12, 2015 at 12:30
  • $\begingroup$ I've been looking for the test vectors also. github.com/NTRUOpenSourceProject/ntru-crypto/blob/master/… refers to ""com.securityinnovation.testvectors.NtruEncryptTestVectorGenerator" " I haven't looked any deeper than this, but it looks like they don't publish test vectors, but give you a means of generating them yourself $\endgroup$
    – user26433
    Aug 30, 2015 at 9:18
  • $\begingroup$ I click all links, but they are invalid. Who can give me a new? I want test vectors of NTRU. $\endgroup$
    – Land
    Jul 22, 2020 at 13:47

1 Answer 1

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The most recent version of the paper indeed seems to be:

Efficient Embedded Security Standards (EESS)
EESS #1: Implementation Aspects of NTRUEncrypt and NTRUSign
Consortium for Efficient Embedded Security
June 20 th , 2003
Version 2.0

(PDF download)

Yet, as you stated, that doesn’t contain any test vectors; just like the previous (v1) paper:

Appendix B - Test Vectors

[To be added in future versions]

But you can find test vectors when checking implementations. For example, by looking at the files contained in the directory https://github.com/Yawning/ntru/blob/master/testvectors/

Alternatively, you could take a look at the files contained in the NTRUOpenSourceProject directory https://github.com/NTRUOpenSourceProject/ntru-crypto/tree/master/reference-code/Java/Encrypt/com/securityinnovation/testvectors/ (see NtruEncryptTestVector.java file)

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