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quangtran's avatar
quangtran
Icon for Cirrus rankCirrus
Dec 21, 2022

use irule to digitally sign

Hello everyone, I have a request like this: {     "Data": "eyJVc2VyTmFtZSI6ImVjdXN0b21zIiwiUGdCJ9" } Here is the body when calling on F5. Add Sign to call the server as follows: {     "Data": ...
irule
security
Mike757's avatar
Mike757
Icon for MVP rankMVP
Dec 21, 2022

Hi quangtran,

I'm really not sure at this point about what's wrong, but I always find that some logging within iRules can help you in debugging what's happening.

For instance, you can add a line like this:

log local0. "encrypted data = $enc_data"

...after the CRYPTO::encrypt function, to make sure what has been calculated thus far in your iRule makes sense.

With local0, the logs will be inserted in /var/log/ltm.

If your VS is running on plain HTTP, a simple tcpdump will also help understand what's coming in and what's going out.

/Mike

  • quangtran's avatar
    quangtran
    Icon for Cirrus rankCirrus
    Dec 22, 2022

    Thanks Mike,   

    Thank you and really appreciate the feedback.