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  Oracle Tips by Burleson

Chapter 6 Oracle Encryption

    --
    -- Now we have to find out the session context
    -- attribute input_vector
    --
   
select sys_context (‘claim_app_ctx’,'input_vector')
    into v_iv_string
    from dual;
    v_iv := utl_raw.cast_to_raw (v_iv_string);
    --
    -- Now we have to encrypt the value
    dbms_obfuscation_toolkit.DES3Encrypt (
        input          => v_input_raw,
        key            => p_key,
        which          => 1,
        iv             => v_iv,
        encrypted_data => v_ret
    );
    return v_ret;
end;

Note how we have selected the session context attribute and applied that to the input_vector shown in bold in the script.

Decryption

get_decrypted_value_with_iv.sql

--**********************************************
--
--   Copyright © 2003 by Rampant TechPress Inc.
--
--   Free for non-commercial use.
--   For commercial licensing, e-mail info@rampant.cc
--
-- *********************************************


The above text is an excerpt from:

Oracle Privacy Security Auditing

The Final Word on Oracle Security

 

This is the only authoritative book on Oracle Security, Oracle Privacy, and Oracle Auditing written by two of the world’s leading Oracle Security experts.

This indispensable book is only

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