Database Attributes Under Cn=Attributename, Cn=Encrypted Attributes Cn=Database_Name, Cn=Ldbm Database, Cn=Plugins, Cn=Config - Red Hat DIRECTORY SERVER 8.1 Command Reference Manual

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Attributes under cn=attributeName, cn=encrypted attributes, cn=database_name, cn=ldbm database, cn=plugins, cn=config
would not be. Indexed searches are significantly faster than unindexed searches, so changing the
minimum length of the search key is helpful to increase the number of indexed searches.
This substring length can be edited based on the position of any wildcard characters. The
nsSubStrMiddle attribute sets the required number of characters for an indexed search where a
wildcard is used in the middle of a search string. For example:
ab*z
If the value of this attribute is changed, then the index must be regenerated using db2index.
Parameter
Entry DN
Valid Values
Default Value
Syntax
Example
3.4.8. Database Attributes under cn=attributeName, cn=encrypted
attributes, cn=database_name, cn=ldbm database, cn=plugins,
cn=config
The nsAttributeEncryption object class allows selective encryption of attributes within a
database. Extremely sensitive information such as credit card numbers and government identification
numbers may not be protected enough by routine access control measures. Normally, these attribute
values are stored in CLEAR within the database; encrypting them while they are stored adds another
layer of protection. This object class has one attribute, nsEncryptionAlgorithm, which sets the
encryption cipher used per attribute. Each encrypted attribute represents a subentry under the above
cn=config information tree nodes, as shown in the following diagram:
Figure 3.3. Encrypted Attributes under the cn=config Node
For example, the database encryption file for the userPassword attribute under o=UserRoot
appears in the Directory Server as follows:
Description
cn=attribute_name, cn=index,
cn=database_name, cn=ldbm database,
cn=plugins, cn=config
Any integer
3
Integer
nsSubStrMiddle: 3
191

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