topic Re: How Encrypt a File Using Key? in Application Development and Automation Discussions

How Encrypt a File Using Key?

Former Member — Mon, 12 Jul 2010 20:19:59 GMT

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.

First

There is a library or other way to encrypt a file without implement a Java Mapping?

Tnks.

Re: How Encrypt a File Using Key?

former_member156446 — Mon, 12 Jul 2010 23:11:32 GMT

have your tried global class CL_HARD_WIRED_ENCRYPTOR? (was700)

Re: How Encrypt a File Using Key?

JerryWang — Tue, 13 Jul 2010 08:22:01 GMT

Hello friend,

You can refer to code below.

DATA if_encrypt TYPE REF TO cl_hard_wired_encryptor.

CREATE OBJECT if_encrypt.

* ENCRYPTOR the string
TRY.
CALL METHOD if_encrypt->encrypt_string2string
EXPORTING
the_string = lv_string_value <---this is a string coming from user---i mean user input this value from the screen
receiving
RESULT = lv_encypt_value <----this one i declared as string as well...
.
CATCH cx_encrypt_error .

ENDTRY.

*for decryption--- put this code under your decrypt button
*since they are two different action methods that is why i needed to create the instance again.

DATA if_encrypt TYPE REF TO cl_hard_wired_encryptor.

CREATE OBJECT if_encrypt.

TRY.
CALL METHOD if_encrypt->decrypt_string2string
EXPORTING
the_string = lv_encypt_value <---declared as string, as above
receiving
RESULT = lv_decrypt_value <---declared as string as well
.
CATCH cx_encrypt_error .

ENDTRY.

Re: How Encrypt a File Using Key?

Former Member — Tue, 13 Jul 2010 13:15:26 GMT

Tnks guys...

Edited by: Douglas Yuri Silveira on Jul 13, 2010 10:19 AM

Re: How Encrypt a File Using Key?

Former Member — Tue, 13 Jul 2010 13:16:55 GMT

Tnks guys...

But I would like to know if are these methods algorithms as DES, AES, RSA... or others ?

Using these methods I can not export a KEY as a value to combine the string, is there other way to do that?

best regards.

Re: How Encrypt a File Using Key?

Sandra_Rossi — Tue, 13 Jul 2010 16:27:05 GMT

> 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

Re: How Encrypt a File Using Key?

Former Member — Wed, 21 Jul 2010 12:56:59 GMT

After metting,

We decided to create a ZIP file with password.

So I implemented a application that generate a .bat file that receive as parameters the file, name of zip file and password.

Tnks guys.

Edited by: Douglas Yuri Silveira on Jul 21, 2010 9:58 AM

Re: How Encrypt a File Using Key?

Former Member — Wed, 21 Jul 2010 12:58:53 GMT

Re: How Encrypt a File Using Key?

Former Member — Thu, 25 Sep 2014 07:54:05 GMT

Hi Douglas,

From the above post, you managed to create ZIP file with password. How you managed to do it? Please let me know the steps.

Thank you. Kishore