Интересно, что авторы курят, чтобы из версии в версию писать подобное:
• Execution of the DBMS_CRYPTO procedures by the PUBLIC can potentially endanger portions of or all of the data storage.
• Allowing the PUBLIC privileges to access this capability can be potentially harm data storage.
• Use of the DBMS_RANDOM package can allow the unauthorized application of the random number-generating function.