EDIINT AS2 implementation - certificates

Hi,

we are planning to integrate with Sterling commerce VAN via AS2.
This would be our first AS2 implementation. we have a ssl certificate for our IS.

For the AS2 documents, we intend to sign and encrypt.

The question which I have is, can we use the same certificate (i.e the one which we have for our IS) also for AS2 signing and encryption OR
Do I have to use separate certificates for both.

Please advise.

Thanks,
Santosh

You can use it and you will need to share the publickey(cert) to other partner as well for them to verify/decrypt