Encrypt a text file using certificates

Hello,
I am trying to encrypt a file using the certificate uploaded through STRUST. But while encrypting I am getting an error, "SSF_API_UNKNOWN_SECTK_ERROR".
I am using the program SSF01.
Request your assistance to resolve this issue.
Also attaching the input screen and output screen screenshots.
Thanks and Regards,
Debanjan Das

Have you properly setup SAP Cryptographic Library on the Application Server? How was the certificate created which you imported into STRUST? See SAP note 662340 for setting up SSF encryption. SAP note 800240 might help you troubleshoot the problems you are having.
https://service.sap.com/sap/support/notes/662340
https://service.sap.com/sap/support/notes/800240

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    Hi,
    Try this sample code.
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