Thanks for the quick response. I am currently working with smart cards and am 
using the engine provided by openSC to access the private key in the smart 
card. Long story short I have the EVP_PKEY object with me. Can I use this to 
sign a certificate or some file which can be used for SSL client verification. 
Merci 


     On Wednesday, 22 July 2015 11:52 AM, Erwann Abalea 
<erwann.aba...@opentrust.com> wrote:
   

 Bonjour,
An X.509 certificate is:
Certificate  ::=  SEQUENCE  {        tbsCertificate       TBSCertificate,       
 signatureAlgorithm   AlgorithmIdentifier,        signatureValue       BIT 
STRING  }
What you produced with « openssl rsautl -sign » is the content of the « 
signatureValue » element (not its BIT STRING structure, only the inner 
content).What is missing is all the rest, and it can’t be produced by the sole 
« openssl x509 … » command.
Please refine your question.
Cordialement,Erwann Abalea



Le 22 juil. 2015 à 11:17, Anirudh Raghunath <anirudhraghun...@rocketmail.com> a 
écrit :
Hello,
I have used rsault -sign option to sign a text file which gives me a binary 
file. I would like to convert this to X509 so that I can use it in a ssl 
handshake. I understand the command:
openssl x509 -inform <format> -in <certfile> -out <cert.pem> 
is used. I want to know what the parameters would be for a binary input file.
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