Re: Signing an XML file

["Anibal F. Martinez Cortina" <linuxkid.zeuz@xxxxxxxxx>]

2016-12-13 22:54 GMT-03:00 Salz, Rich <rsalz@xxxxxxxxxx>:

> Is there some equivalent to PHP's openssl_sign_pkcs7 function for C/C++ users?

Look at the apps/pkcs7.c file as a starting point.  Get the command line doing what you want, and then work through the code to pull out only the bits you need.

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Got it, after some more reading, I've managed to pull:

A Valid X509 structure with the PEM file.

A Valid EVP_PKEY structure with the KEY file.

Created a BIO with BIO_new(BIO_s_mem()) and used BIO_read_filename with it.

Now I get to the part where I need to call PKCS7_sign() right?

If so, I'm missing something, because:

PKCS7_sign(cert,key,NULL,fileBIO,NULL) produces NULL as a result.

Any hints?

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