SAP ABAP IMG Activity FOT_IMG_ELSTER (Set Up Encryption for ELSTER)
Hierarchy
☛ SAP_FIN (Software Component) SAP_FIN
   ⤷ FI (Application Component) Financial Accounting
     ⤷ FOT_EDECLARATION (Package) Electronic Advance Return for Tax on Sales/Purchases
IMG Activity
ID FOT_IMG_ELSTER Set Up Encryption for ELSTER  
Transaction Code S_AC0_52000124   (empty) 
Created on 20041013    
Customizing Attributes FOT_V_FOTETAXC   Electronic Communication with Authorities 
Customizing Activity    
Document
Document Class SIMG   Hypertext: Object Class - Class to which a document belongs.
Document Name FOT_IMG_ELSTER    

Use

You set up SAPCryptolib in this IMG activity. You need to encrypt your data before you can exchange data with the clearing houses of the tax authority. You can create key pairs with SAPCryptolib for the taxable company codes/dominant enterprises. The encryption is done in the standard format for digital signatures PKCS#7. A key pair consists of a private and a public key. The financial authorities require a 2048 bit RSA key.

Requirements

Standard settings

Activities

To generate a key pair, proceed as follows:

  1. Load the SAPCryptolib (version 1.555.16 or higher) from the SAP Service Marketplace and unpack it on the PC on which you want to generate key pairs.
  2. To generate the key pair of the taxable company code/dominant enterprise, open the tool sapgenpse. The tool is contained in SAPCryptolib and enables you to administer SAPCryptolib at command level.
  3. Enter the following data:
    • File Name: PSE file where the key pair of the taxable company code/dominant enterprise and public keys of third parties are stored.
    • Personal Identification Number (PIN): Protects the key pair from unauthorized access in the PSE file. You need to enter the PIN as confirmation during later key management.
    • Distinguished Name (DN): Identifies the key pair and contains information about the taxable company code/dominant enterprise. This includes the following components:

  1. CN=Common Name
  2. OU=Organizational Unit
  3. O =Organization
  4. C =Country

  1. To determine the individual components for the DN of the taxable company code/dominant enterprise, enter the following command in the command line of sapgepse:
    sapgenpse gen_pse -p <file name>.pse -s 2048 -x <PIN>"<Distinguished Name>"
    Example:
    sapgenpse gen_pse -p elster_1.pse -s 2048 -x 123456"CN=Elster UVA, OU=Abrechnung, O=Muster-AG, C=DE"
    Note:
    You get an overview of the parameters allowed with sapgenpse -h. The addition get_pse is used synonymously to gen_pse.

Example

Business Attributes
ASAP Roadmap ID 207   Establish Reporting 
Mandatory / Optional 1   Mandatory activity 
Critical / Non-Critical 2   Non-critical 
Country-Dependency I   Valid for countries specified 
Maintenance Objects
Maintenance object type    
History
Last changed by/on SAP  20050321 
SAP Release Created in 600