DBMS_CRYPTO.ENCRYPT when encrypting NULL data throws ORA-28233: Double Encryption Not Supported (Doc ID 1324337.1)

Last updated on OCTOBER 31, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 and later
Information in this document applies to any platform.

Symptoms

When encrypting BLOB data using DBMS_CRYPTO.ENCRYPT the following error occurs:


ORA-28233: double encryption not supported

Cause

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