AS1 (networking)

AS1 (Applicability Statement 1) is a specification about how to transport data securely and reliably over the Internet. Security is achieved by using digital certificates and encryption.

The AS1 protocol is based on SMTP and S/MIME. It was the first AS protocol developed and uses signing, encryption and MDN conventions. In other words:

Like any other AS file transfer, AS1 file transfers typically require both sides of the exchange to trade X.509 certificates and specific "trading partner" names before any transfers can take place.

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