Método para
negociar un valor de clave en línea sin transferir la clave, incluso en forma
criptada, por ejemplo, la técnica de Diffie-Hellman (para más información sobre
los mecanismos de acuerdos de clave, véase ISO/IEC ISO-11770-1). [X.509:2005]
Acuerdo entre
entidades para establecer una clave secreta, tal que ninguna de ellas pueda
predeterminar el valor de la citada clave (ISO/IEC ISO-11770-1).
Habitualmente
se realiza mediante algún protocolo criptográfico, siendo el más común de entre
ellos el de Diffie-Hellman.
[Ribagorda:1997]
Procedimiento
por el que dos equipos de cifra interconectados cambian información a fin de
determinar qué claves almacena cada uno para ser usadas en el cifrado del
tráfico entre ellos. [CESID:1997]
1. (I) A key establishment
method (especially one involving asymmetric cryptography) by which two or more
entities, without prior arrangement except a public exchange of data (such as
public keys), each can generate the same key value. That is, the method does
not send a secret from one entity to the other; instead, both entities, without
prior arrangement except a public exchange of data, can compute the same secret
value, but that value cannot be computed by other, unauthorized entities. (See:
Diffie-Hellman- Merkle, key establishment, KEA, MQV. Compare: key transport.)
2. (O) "A method for
negotiating a key value on line without transferring the key, even in an
encrypted form, e.g., the Diffie- Hellman technique." [X509] (See:
Diffie-Hellman-Merkle.)
3. (O) "The procedure
whereby two different parties generate shared symmetric keys such that any of
the shared symmetric keys is a function of the information contributed by all
legitimate participants, so that no party [alone] can predetermine the value of
the key." [A9042]
[RFC4949:2007]
A key establishment
procedure where resultant keying material is a function of information
contributed by two or more participants, so that no party can predetermine the
value of the keying material independent of the other partys contribution. [NIST-SP800-57:2007]
A method for negotiating a
key value on-line without transferring the key, even in an encrypted form, e.g.
the Diffie-Hellman technique (see ISO/IEC ISO-11770-1 for more information on
key agreement mechanisms). [X.509:2005]
the process of establishing
a shared secret between entities in such a way that neither of them can
predetermine the value of that key. [ISO-15946-3:2002]
The process of establishing
a shared secret key between entities in such a way that neither of them can
predetermine the value of that key. [ISO-11770-3:2008]
méthode de négociation
en ligne de la valeur d'une clé sans transfert de cette dernière, même sous
forme chiffrée, par exemple en utilisant la méthode Diffie-Hellman (se référer
à l'ISO/IEC ISO-11770-1 pour plus d'informations concernant les procédés
d'agrément de clé). [X.509:2005]