dbms_crypto_toolkit

Hello,

I installed Oracle Crypographic Toolkit. This package has procedures that i need like SignDetached and VerifyDetached.

the installation was successful and and no invalid packages

I have one certificate intall in oracle Wallet which i need to verify digitally signatures.

The oracle version is 10.2.0.1 and my problem is:

SQL> EXEC dbms_crypto_toolkit.Initialize;
BEGIN dbms_crypto_toolkit.Initialize; END;

*
ERROR en línea 1:
ORA-28817: La función PL/SQL ha devuelto un error.
ORA-06512: en "SYS.DBMS_CRYPTO_TOOLKIT_FFI", línea 6
ORA-06512: en "SYS.DBMS_CRYPTO_TOOLKIT", línea 43
ORA-06512: en línea 1

anyone knows the solution.