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Computer Security Resource Center

Computer Security
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X.509 public key certificate

Abbreviation(s) and Synonym(s):

None

Definition(s):

  A digital certificate containing a public key for an entity and a name for that entity, together with some other information that is rendered un-forgeable by the digital signature of the certification authority that issued the certificate, encoded in the format defined in the ISO/ITU-T X.509 standard.
Source(s):
NIST SP 800-57 Part 1 Rev. 4 under X.509 public-key certificate

  A digital certificate containing a public key for entity and a name for the entity, together with some other information that is rendered un- forgeable by the digital signature of the certification authority that issued the certificate, encoded in the format defined in the ISO/ITU-T X.509 standard.
Source(s):
NIST SP 800-57 Part 1 Rev. 3 under X.509 public-key certificate [Superseded]

  The public key for a user (or device) and a name for the user (or device), together with some other information, rendered unforgeable by the digital signature of the certification authority that issued the certificate, encoded in the format defined in the ISO/ITU-T X.509 standard. Also known as X.509 Certificate.
Source(s):
CNSSI 4009-2015 (NIST SP 800-57 Part 1 Rev. 3 - Adapted)