How Encrypt a File Using Key?

Hi Guys,
Here is my problem. I have to create a bank's document encrypted to send to a legacy system. ( Using a KEY to validate the roll process)
I'm thinking to use two scenarios:
1 - Generate the file via ABAP and sent it to a folder in a server to be consuming - SAP ERP.
2 - Generate the file via ABAP, sent it to PI encrypt it via Java Mapping and sent it to a server.
ABAP
First question.
There is a way to generate this file using SHA1 using a Key as parameter?
(CALCULATE_HASH_FOR_CHAR)
Second one.
How can I decrypt this file to test?
Third.
There is others ways to encrypt a file via SAP ERP? UTF-8 and BASE32 are not encrypt codes. They are encoding code.
PI
First
There is a library or other way to encrypt a file without implement a Java Mapping?
Tnks.

> There is a way to generate this file using SHA1 using a Key as parameter?
Why don't you simple search the forum with "SHA1" term, you'd get the answer in an instant
> How can I decrypt this file to test?
> There is others ways to encrypt a file via SAP ERP? UTF-8 and BASE32 are not encrypt codes. They are encoding code.
What encryption do you need?
> But I would like to know if are these methods algorithms as DES, AES, RSA... or others ?
Couldn't you say it at the beginning!
By simply looking at CL_HARD_WIRED_ENCRYPTOR methods, we see that the encryption mechanism is very simple (I'm not expert so I can't tell what it is), I wouldn't rely on it...
I recommend you to read [Note 662340 - SSF Encryption Using the SAPCryptolib|http://service.sap.com/sap/support/notes/662340]. There are also some documentation, security guides on sap library and sap marketplace.
Edited by: Sandra Rossi on Jul 13, 2010 6:51 PM

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