Firebird Documentation IndexFirebird 2.1 Release NotesNew Configuration Parameters and Changes → LegacyHash
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LegacyHash

A. Peshkov

This parameter enables you to configure Firebird 2 to reject an old DES hash always in an upgraded security database. If you don't use the security database upgrade procedure, this parameter does not affect Firebird operation. A DES hash cannot arrive in the new security2.fdb.

Refer to the Security DB Upgrade Security section for instructions on upgrading your existing Firebird 1.5 security.fdb (or a renamed isc4.gdb) to the new security database layout.

The default value is 1 (true).

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Firebird Documentation IndexFirebird 2.1 Release NotesNew Configuration Parameters and Changes → LegacyHash