Re: Writing an ENGINE for OpenSSL-1.1.1 and 3.0

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When you say you put it in "the appropriate of the lib/", what
directory is that exactly?  Does it correspond to the output of
"openssl3 version -e"?

On Sun, 01 Dec 2019 00:58:00 +0100,
Blumenthal, Uri - 0553 - MITLL wrote:
> 
> 
> In preparation for writing a new engine that supports message digest and asymmetric crypto (sign
> and decrypt), I am trying to port the existing simple/demo engines from the Engine Corner examples
> (thanks, Richard!).
> 
> The fork of https://github.com/engine-corner/Lesson-2-A-digest.git that compiles and runs
> correctly (apparently) on OpenSSL-1.1.1 is https://github.com/mouse07410/Lesson-2-A-digest.git .
> 
> But no matter what, I was unable to make either of these two repos to run successfully with
> OpenSSL-3.0 (master), even though the latter repo at least seems to compile correctly, and answers
> “Available”. Here’s what I’m getting (for both versions I built the sample “emd5”engine and copied
> to the appropriate subdir of the lib/;  “openssl3” is an alias that points OPENSSL_CONF at the
> correct file, and invokes the correct OpenSSL-3.0 “openssl” binary, as it’s not on the main path):
> 
> $ penssl version
> 
> OpenSSL 1.1.1d  10 Sep 2019
> 
> $ openssl engine -t -c emd5
> 
> (emd5) A simple md5 engine for demonstration purposes
> 
>  [MD5]
> 
>      [ available ]
> 
> $ echo "shoot" | openssl dgst -md5 -engine emd5
> 
> engine "emd5" set.
> 
> (stdin)= 61a08703a6a4c774cad650afaedd9c10
> 
> $ echo "shoot" | openssl dgst -md5
> 
> (stdin)= 61a08703a6a4c774cad650afaedd9c10
> 
> $ 
> 
> $ openssl3 version
> 
> OpenSSL 3.0.0-dev xx XXX xxxx (Library: OpenSSL 3.0.0-dev xx XXX xxxx)
> 
> $ openssl3 engine -t -vv -c emd5
> 
> (emd5) A simple md5 engine for demonstration purposes
> 
>  [MD5]
> 
>      [ available ]
> 
> $ echo "shoot" | openssl3 dgst -md5
> 
> MD5(stdin)= 61a08703a6a4c774cad650afaedd9c10
> 
> $ echo "shoot" | openssl3 dgst -md5 -engine emd5
> 
> engine "emd5" set.
> 
> Error setting digest
> 
> C0:05:98:0C:01:00:00:00:error:digital envelope routines:EVP_DigestInit_ex:initialization
> error:crypto/evp/digest.c:224:
> 
> $
> 
> Something must be missing from the configuration/setup – but what…? Help would be greatly
> appreciated!
> 
> Thanks!
> 
> —
> 
> Regards,
> 
> Uri
> 
> 
-- 
Richard Levitte         levitte@xxxxxxxxxxx
OpenSSL Project         http://www.openssl.org/~levitte/




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