However, in certain settings stronger requirements are put on the nonces; like for instance in the CBC-mode of operation for block ciphers the IV (nonce) needs to be unpredictable (a …

I know both nonces and timestamps are used to prevent replay attacks, and nonces may offer increased security in the situation a message could be replayed with the timestamp in the …

Use of nonces in Kerberos and Needham–Schroeder protocols Ask Question Asked 13 years, 5 months ago Modified 13 years, 5 months ago

Jun 18, 2022 · Nonces are often used to prevent replay attacks in networks. Because they are a one time use, any attacker replaying a request would be stopped because the nonce would be …

Oct 14, 2021 · So I guess one alternative to having this incrementing-counter approach, would be just using regular, random nonces for every message that you could send with the message. …

Apr 23, 2025 · Simple question, given a signed message and signature, if a nonce is known, then it’s possible to recover the private key. But what about doing the reverse ? I’m meaning using …

A client nonce would not be needed if the client had a local memory large enough to recall all previously used nonces -- the kind of memory which resists across reboots, and can store all …

Dec 21, 2024 · AES-CTR and authenticated variants tend to have a 'problem' with lacking bit real-estate for nonce & counter. Why hasn't an AES-512 variant been standardized at some point? …

Mar 26, 2021 · I have a very simple question. Since XChaCha20 nonces are 192-bit, there's technically no limitation to the max number of message encrypted, since the chances of two …

May 3, 2023 · Storing all old nonces is definitely a way of achieving nonce re-use freedom, but it's of course quite costly. You could also use a e.g. 64bit counter instead as a nonce: start at 0 …