Secure Hash Algorithm (SHA256) for Unix file

[#1]

Hi Team -

We have requirement to generate SHA256 64 character hash value for master data extract files. Data file is generated in UNIX folder and it will be transferred to secure folder through FTP. We have used CL_ABAP_MESSAGE_DIGEST=>CALCULATE_HASH_FOR_CHAR generate the mentioned hash value and transferring to legacy system. However, its not failing when it validated in target system.

Please suggest any alternative solution to generate hash value for outbound interface file.

Thanks,

Kannan