(En un
critposistema de claves públicas) clave de un par de claves de usuario que es
conocida públicamente. [X.509:2005]
En un
criptosistema asimétrico, clave criptográfica de un usuario que se hace de
público conocimiento (ISO/IEC 9594-2, ITU-T X.509). [Ribagorda:1997]
Clave que se
utiliza con un algoritmo criptográfico asimétrico y que puede estar disponible
públicamente. [X.810:1995]
A cryptographic key that may
be widely published and is used to enable the operation of an asymmetric
cryptography scheme. This key is mathematically linked with a corresponding
private key. Typically, a public key can be used to encrypt, but not decrypt,
or to validate a signature, but not to sign. [CNSSI_4009:2010]
1. (I) The publicly
disclosable component of a pair of cryptographic keys used for asymmetric
cryptography. (See: key pair. Compare: private key.)
2. (O) In a public key
cryptosystem, "that key of a user's key pair which is publicly
known." [X509]
[RFC4949:2007]
A cryptographic key used
with a public key cryptographic algorithm that is uniquely associated with an
entity and that may be made public. In
an asymmetric (public) cryptosystem, the public key is associated with a private
key. The public key may be known by anyone and, depending on the algorithm, may
be used to:
·
Verify a
digital signature that is signed by the corresponding private key,
·
Encrypt
data that can be decrypted by the corresponding private key, or
·
Compute a
piece of shared data.
[NIST-SP800-57:2007]
that key of an entitys
asymmetric key pair which can be made public [ISO/IEC ISO-11770-1:1996].
[ISO-18033-1:2005]
(In a public key
cryptosystem) that key of a user's key pair which is publicly known.
[X.509:2005]
That data item, key or
number, of an asymmetric pair, that can be made public and shall be used by
every verifier for establishing the claimant's identity. [ISO-9798-5:2004]
that key of an entity's
asymmetric key pair which can be made public.
NOTE. In the case of an
asymmetric signature system the public key defines the verification
transformation. In the case of an asymmetric encipherment system the public key
defines the encipherment transformation. A key that is 'publicly known' is not
necessarily globally available. The key may only be available to all members of
a pre-specified group.
[ISO-11770-3:2008]
That key of an entity's
asymmetric key pair which can be made public.
NOTE. In the case of an
asymmetric signature system, the public key defines the verification
transformation. In the case of an asymmetric encipherment system the public key
defines the encipherment transformation. A key that is 'publicly known' is not
necessarily globally available. The key may only be available to all members of
a pre-specified group.
[ISO-9798-1:1997]
A key that is used with an
asymmetric cryptographic algorithm and that can be made publicly available.
[X.810:1995]
(dans un système de
chiffrement avec clé publique) celle des clés d'une paire de clés d'un
utilisateur qui est connue de manière publique. [X.509:2005]
Une des deux clés du
couple clé publique/clé privée rendue publique et connue par tous. Elle
intervient dans le mécanisme de chiffrement et permet de chiffrer
électroniquement des messages à l'intention du détenteur de cette clef, message
qui sera ensuite déchiffré par la clé privée. [ISO-9798-1:1997]
clé qui est utilisée
avec un algorithme asymétrique de cryptographie et qui peut être rendue
publique. [X.810:1995]