Oracle Database Advanced Security 10g Release 1, Руководство администратора

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Glossary-7
A public or private database link from one database to another is created on the
local database by a DBA or user.
A global database link is created automatically from each database to every other
database in a network with Oracle Names. Global database links are stored in the
network definition.
database method
See Oracle database method
database password verifier
A
database password verifier is an irreversible value that is derived from the user's
database password. This value is used during password authentication to the
database to prove the identity of the connecting user.
Database Security Administrator
The highest level administrator for database enterprise user security. This
administrator has permissions on all of the enterprise domains and is responsible
for:
■
Administering the Oracle DBSecurityAdmins and OracleDBCreators groups.
■
Creating new enterprise domain s .
■
Moving databases from one domain to another within the enterprise.
DCE
See Distributed Computing Environment (DCE)
decryption
The process of converting the contents of an encrypted message (ciphertext) back
into its original readable format (plaintext).
DES
See Data Encryption Standard (DES)
dictionary attack
A common attack on passwords. the attacker creates a dictionary of many possible
passwords and their corresponding verifiers. Through some means, the attacker
then obtains the verifier corresponding to the target password, and obtains the
target password by looking up the verifier in the dictionary.