In cryptography, a pre-shared key (PSK) is a shared secret which was previously shared between the two parties using some secure channel before it needs to be used. == Key == To build a key from a shared secret, the key derivation function is typically used.
In cryptography, a pre-shared key (PSK) is a shared secret which was previously shared between the two parties using some secure channel before it needs to be used. == Key == To build a key from a shared secret, the key derivation function is typically used.
Source: Wikipedia "Pre-shared key" · CC BY-SA 4.0
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