is it safe to reuse the public key in NTRUEncrypt?

sz flag

Looking at, there are some functions that deal with having multiple public keys with the same private key. I don't believe I need such functionality but it makes me suspect that it might be required. Basically, I want to know if it is OK to reuse the same keypair in NTRUEncrypt for a number of different key exchange operations.

Mark avatar
ng flag
In general for public-key encryption it must be safe to reuse the public key --- the cryptosystem must be secure against any poly-time bounded adversary, who can encrypt polynomially many messages. Do you mean "reuse" in this sense, or in another sense?
I sit in a Tesla and translated this thread with Ai:


Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.