https://en.wikipedia.org/wiki/Cryptographic_nonce https://en.wikipedia.org/wiki/Cryptographic_nonce In general, it's a made up one time value. In this case, it

https://en.wikipedia.org/wiki/Cryptographic_nonce https://en.wikipedia.org/wiki/Cryptographic_nonce In general, it's a made up one time value. In this case, it satisfies an additional property.