Cryptographic nonce

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Notion

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Science and technology

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What Wikipedia says

In cryptography, a nonce is an arbitrary number that can be used just once in a cryptographic communication. It is often a random or pseudo-random number issued in an authentication protocol to ensure that each communication session is unique, and therefore that old communications cannot be reused in replay attacks.

Excerpt from the Wikipedia article “Cryptographic nonce”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

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