6-6 Flashcards
___________ is not used to ensure the condifentiality of a message, but rather to guarauntee who sent the message. they revers the asymetric encryption process. with this process the sender encrypts with the his or her private key and decrypts with the public key ( Asymetric cryptography does a reverse of this process.
digital certificates
an international standard for the format and information contained in a digital certificate. its the most widely use type of digital certificate. its the document that contains public key signed by the trusted third party.
x.509
the contents of the X.509 are
version cert holders public key serial number Cert holders ddistinguished name Certs validity issuer unique name of Cert issuer digital sigature of issuer signature algorithim identifier
this issues out digital certificatesdigitally signs and publishes the public key bound to a given user
Certificate authority
used to take the burden of the CA by handling verification prior to certificates being used
registration authority
distributes digital certificates. this is a netowrk of trusted CA servers that serves as the infrastructure for distributing digital certs that contain public keys
PKi ( piblic key infrastructure)
is a list of certificates that have been revoked for one reason or another. CA’s publish their own lists.
Vertification revokation list.
there are several different X.509 certificates
Domain Validation Wildcard code Signing Machine / Computer user email a subjective a;tentative name Root
used for secure communication with a specific domain
domain validation
used to digitally sign some type of computer code
code signing
assigned to a specigfic machine
Machine / Computer
used for individual users
User
used in secure amail
not so much a type of cert as it is a special field in X.509
Subject Alternative Name
used for root authorities
root
