[JSch-users] **IMP** Regarding HMAC-SHA2-512

[Mohamed F. N <md...@gm...>]

Hi Team,



We are from HCL-Cisco team.


Recently we got a request to support the HMAC-SHA2-256 and HMAC-SHA2-512
stronger algorithms.



At present, we are using the “jcraft.jar” of version:0.1.53 and downloaded
the latest “0.1.55” also.

In that jar, particularly – com.jcraft.jsch.JSch.java found the below lines
are commented out,



    // The "hmac-sha2-512" will require the key-length 2048 for DH,

    // but Sun's JCE has not allowed to use such a long key.

    //config.put("hmac-sha2-512",  "com.jcraft.jsch.jce.HMACSHA512");

 Why this algorithm is not yet supported? But still I am able to see the
file named com.jcraft.jsch.jce.HMACSHA512.


Is this algorithm not fully implemented/handled with Parent
Class“HMAC.java”?

Suggest if any alternate way to support SHA2-512 algorithm ?



And also I would like to know the list of all types of MAC algorithms
support in Java till date.



Thanks in Advance !



Regards,

Mohamed Faleh N