Encryption Type 4: RC4 Encryption

Encryption Type 4 (RC4 Encryption) is the recommended and default option. It can also be selected by the -rc4 option.

--<004>-- Published PML 1.1 >--

return error 99 'Unable to decrypt file in this software version'

$** d2b5c25a4eb20d0a540684e50a956e08

$** bs6mg5RrMcwxEsJcsWkPvI8wl0UzZbRe6k7aSK6MsfNn0Z1bI2+Qei7sparo

$** 07GrPZRJqvJvpyigRzDOR9OrbiaMj2O1nPllKJrLksfNKSMovO299idon3zg

$** SmwFahG-m1M4xgO4KfZ15tDf-k0n6wk45IsF9LMcX0lVc9hLEW+W64th

It is implemented using the Microsoft Base Cryptographic Provider, which is included in, among other operating systems, Windows 2000 and Windows XP. It is also included with Microsoft® Internet Explorer version 3.0 or later. 40-bit keys are used, to operate within limits imposed at one stage on exports of encryption technology.

It is therefore expected that all compatible computers will include the libraries required for this algorithm.

Please note that even this encryption is of limited strength, and is not secure against all possible attacks.

If you have existing encrypted files encrypted with the obsolete encryption type 3, you must re-encrypt the original source to encryption type 4 if you wish to use them with versions 12.X, 11.6.SP4 and above or 11.5.SP2 and above.