Why should I use AS2?

Why should I use AS2? Isn't SSL enough to secure the data?

Date Entered: 2/14/2005    Last Updated: 06/09/2008

There are three primary purposes for the AS2 protocol

  1. Confidentiality

    By encrypting a message, you are guaranteeing that only the intended recipient of the message will be able to decrypt it. This is also provided by an SSL communication, but only during the actual internet transfer. With AS2, the document itself is encrypted rather than just the transfer.

  2. Authentication

    By signing a message, you are guaranteeing that only you could have sent this message to the recipient. This can also be provided in SSL by requiring client authentication.

  3. Non-Repudiation

    By signing a receipt for the transaction, both parties have irrefutable evidence that the transaction has occurred. This functionality is not provided by SSL. In short, AS2 can allow two parties to communicate with each other without needing to vouch for the integrity of the other party (or their AS2 configuration).

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