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Security features 12

Security terms 12

 CA (Certificate Authority)

A CA is an entity that issues digital certificates (especially X.509 certificates) and vouches for the binding

between the data items in a certificate.

 CSR (Certificate Signing Request)

A CSR is a message sent from an applicant to a CA in order to apply for issue of a certificate. The CSR

contains information identifying the applicant, the public key generated by the applicant and the digital

signature of the applicant.

 Certificate

A Certificate is the information that binds together a public key with an identity. The certificate can be used

to verify that a public key belongs to an individual. The format is defined by the x.509 standard.

 CA Certificate

A CA Certificate is the certification that identifies the CA (Certificate Authority) itself and owns its private

key. It verifies a certificate issued by the CA.

 Digital signature

A Digital signature is a value computed with a cryptographic algorithm and appended to a data object in

such a way that any recipient of the data can use the signature to verify the data's origin and integrity.

 Public key cryptosystem

A Public key cryptosystem is a modern branch of cryptography in which the algorithms employ a pair of

keys (a public key and a private key) and use a different component of the pair for different steps of the

algorithm.

 Shared key cryptosystem

A Shared key cryptosystem is a branch of cryptography involving algorithms that use the same key for two

different steps of the algorithm (such as encryption and decryption).

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Brother HL 5450DN Bedienungsanleitung Seite 109