Description
Set encryption mode to use.
Supported encryption modes are 'des' and 'md5'.
You can use the constants FILE_PASSWD_MD5 and FILE_PASSWD_DES for this purpose.
Return value
Returns TRUE on success,
PEAR_Error on failure.
Returns PEAR_Error
FILE_PASSWD_E_INVALID_ENC_MODE,
if supplied encryption mode is not supported.