Timeline of NTRUEncrypt and NTRUSign
NTRUEncrypt presented at CRYPTO ’96 Rump Session, published at ANTS ’98
NSS (NTRU Signature Scheme)
Published at EUROCRYPT ’01, Broken several times
NTRUSign
Published at CT-RSA’03 [HHGP03]
Raw NTRUSign Broken at EUROCRYPT ’06 [NgRe06]