[openssl-users] Verifying a signature - format problems

[Richard Moore]

On 24 July 2015 at 13:32, Andrew Carpenter <andrewcarp at gmail.com> wrote:

>     So my question is: What format should the signature file be in?
> base64? DER? PKCS7? raw binary?  Specifically I am talking about the
> function EVP_DigestVerifyFinal(), What format should the *sig parameter be
> in?  The DiestVerifyInit and DigestVerifyUpdate are working with no errors,
> so I have narrowed it down to this function.
> Thanks,
>
>
​You might find this change I've recently written for Qt useful:
https://codereview.qt-project.org/#/c/113855/
It implements exactly this and has lots of test cases.

Cheers

Rich.
​
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