AS3: Applicability Statement 3


AS3, or Applicability Statement 3, is a specification by which applications communicate EDI data, or other information such as XML documents, securely over the Internet using the FTP protocol. It was developed by the Internet Engineering Task Force (IETF) to address specific FTP connection problems. AS3 is not the successor to AS2, as it offers distinct features.


The Benefits of AS3

Enable data security, in transit and at rest

• End-to-end data encryption

• SSL encryption and hashing

File Encryption

• Legally prove transaction details

• Confirmations and MDN

Any standard, any format

• Large file transfer

• Any data type including non-EDI payloads

Compare AS3 and FTP

Industry mandates directing the use of one protocol or technology versus another often arise from the history of implementation, industry use, and market penetration. To illustrate, we’ll compare two communications protocols:

  • FTP does not provide receipt confirmation, but provides slight advantages in terms of message size and speed

  • AS3 advances over FTP is in non-repudiation with the use of receipts, or Message Disposition Notifications (MDNs) and digital signatures - a way to verify the receipt and identity

Connect to Your Trading Partners Using AS3

Power your most critical business exchanges and securely connect to your customers, suppliers, and partners via Cleo's industry-leading AS3 integration solution.

Our deep protocol flexibility enables robust B2B/EDI connection and AS3 integration capabilities, giving your business a competitive advantage.

B2B Protocol Exchange

Cleo Solutions Certifications

Drummond Group
Drummond Certified

Cleo's secure AS2, AS3, and AS4 protocol connectors are fully certified by Drummond Group for interoperability and conformance, and for the reliability and security of data interchange.

FIPS Certified

Cleo offers a FIPS 140-2 Certified data encryption solution that meets the security requirements set forth by the US National Institute of Standards and Technology (NIST) for government agencies and other firms with technology solutions and services used in the government sector.

Odette Certified

Cleo provides an Odette-certified OFTP2 protocol connector, ensuring reliable data interaction and the secure exchange of critical business data.