- The Authority Revocation List is technical identical to a
CRL but used for CAs and not for end user
- ‘Chain model’
- Verification model for X.509 which uses the creation date of a
signature as the date the validation starts and in turn checks that each
certificate has been issued within the time frame, the issuing
certificate was valid. This allows the verification of signatures after
the CA's certificate expired. The validation test also required an
online check of the certificate status. The chain model is required by
the German signature law. See also Shell model.
- The Cryptographic Message Standard describes a message
format for encryption and digital signing. It is closely related to the
X.509 certificate format. CMS was formerly known under the
PKCS#7 and is described by
- The Certificate Revocation List is a list containing
certificates revoked by the issuer.
- The Certificate Signing Request is a message send to a CA to
ask them to issue a new certificate. The data format of such a signing
request is called PCKS#10.
- A data format used to build a PKI and to exchange encrypted or
signed messages. In contrast to X.509, OpenPGP also includes the
message format but does not explicitly demand a specific PKI. However
any kind of PKI may be build upon the OpenPGP protocol.
- This term is used by GnuPG to describe a 20 byte hash value used
to identify a certain key without referencing to a concrete protocol.
It is used internally to access a private key. Usually it is shown and
entered as a 40 character hexadecimal formatted string.
- The Online Certificate Status Protocol is used as an
alternative to a CRL. It is described in
- The Personal Security Environment describes a database to
store private keys. This is either a smartcard or a collection of files
on a disk; the latter is often called a Soft-PSE.
- ‘Shell model’
- The standard model for validation of certificates under X.509. At the
time of the verification all certificates must be valid and not expired.
See also Chain mode.
- Description of a PKI used with CMS. It is for example