Derivación de una clave a partir de otra

Acrónimos: KDF

Ver:

·         Clave

·         Clave criptográfica

Derivación de una clave a partir de otra

Proceso por el que se genera una clave a partir de cierta información secreta y, opcionalmente, alguna información adicional.

(en) Key derivation

A function in the lifecycle of keying material; the process by which one or more keys are derived from a shared secret and other information. [NIST-SP800-57:2007]

(en) key derivation function

a function that maps octet strings of any length to octet strings of an arbitrary, specified length, such that it is computationally infeasible to find correlations between inputs and outputs, and such that given one part of the output, but not the input, it is computationally infeasible to predict any bit of the remaining output. The precise security requirements depend on the application. [ISO-18033-2:2006]

(en) Key derivation function

a key derivation function outputs one or more shared secrets, used as keys, given shared secrets and other mutually known parameters as input. [ISO-15946-3:2002]

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