Re: PGP signature of empty string

Florian Mutter <[email protected]> Mon, 11 Mar 2013 15:43:02 +0100
Newsgroups gmane.comp.encryption.cryptlib
Message-ID <[email protected]>
> Thanks!  So verifying the signature is easy, just change the code to:
> 
>  if( strlen(text) > 0 )    
>    cryptEncrypt( hashContext, (void *)text, (int)strlen(text) );
> 
> Since calling cryptEncrypt() on a hash context with length == 0 wraps up the
> hashing, and since you're not hashing anything anyway, you can just skip the
> call if the hashed data length is zero.

This works. Thank you! But I'm not able to get something like this working to sign an empty string.
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