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eDirectory for the Beginner
February 2002
DeveloperNet University Course
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Definitions

CA (Certificate Authority) An entity that issues public key certificates and verifies the identity of the person or organization the public key certificates are issued to. Also called certification authority or certifying authority.
Certificate chain An ordered list of public key certificates. The top-most public key certificate in the chain is known as the trusted root certificate of the certificate chain. Each public key in the certificate signs the certificate below it in the chain.
Common name (cn) The name of the leaf object.
Context The object's position in the tree.
CSR (Certificate Signing Request) Consists of a distinguished name, a public key, and an optional set of attributes. The CSR is signed by the entity requesting certification. The CSR is sent to a certificate authority (CA) who transfers the request into an X.509 public key certificate.
Current context Your position in the tree, not the object's location.
Distinguished name Common name and context.
Partition A logical division of an NDS tree.
PKCS (Public Key Cryptography Standard) Standards produced and distributed by RSA Data Security, Inc.(e.g. PKCS #10). This standard defines a syntax for a certificate signing request (CSR).
Private key A key that belongs to a subject (user, application, or computer) and is never revealed to anyone. The subject uses the private key to decrypt messages encrypted with the subject's public key. A private key can also be used to sign messages sent by the subject to anyone else. Using the subject's public key, anyone can decrypt the message and be assured that the message originated from that subject.
Public key A key that belongs to a subject (user, application, or computer) and can be revealed to everyone. It is used to encrypt messages that are sent to the subject and verify the signature of the subject.
Replica A copy of a partition.
Schema The set of classes and attributes in the directory.
Synchronization Information update of replicas.

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