AS2 continues to be one of the most widely-adopted messaging standards in the world. Retailers, consumer product goods, hard-lines, insurance, financial services, petroleum industry, and government agencies have adopted AS2 to safeguard critical business information that represents billions of dollars each year.
AS2 Pre-Certification is required for new or past AS2 vendors who have not participated in Drummond B2B AS2 Test Events within the last two years.
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LEGEND
| Adv | Supports AES and SHA2 over SSL |
| Adv* | Supports AES and SHA2 over SSL with asynchronous MDNs outbound-only |
| Adv-AES | Supports AES and SHA2 over SSL |
| Adv-AES* | Supports AES and SHA2 over SSL with asynchronous MDNs outbound-only |
| Adv-CTE | Chunked Transfer Encoding over SSL - inbound and outbound with AES/SHA2 |
| Adv-CTE* | Chunked Transfer Encoding over SSL - inbound only over SSL with AES/SHA2 |
| Adv-FN | Filename Preservation of Payload over SSL with AES/SHA2 |
| Adv-FN-MA | Filename Preservation for Multiple Payloads over SSL with AES/SHA2 |
| Adv-MA | Supports Multiple Attachments (Payloads) over SSL with AES/SHA2 |
| Adv-SHA2 | Supports SHA2 with AES over SSL |
| Adv-SHA2* | Supports SHA2 with AES over SSL – outbound only |
| BA | Basic Authentication required to establish AS2 connectivity in both directions |
| BA* | Basic Authentication required to establish AS2 connectivity – outbound only |
| BA-AES | Basic Authentication with AES |
| BA-AES* | Basic Authentication with AES - outbound only |
| BA-CTE | Basic Authentication with Chunked Transfer Encoding - inbound and outbound |
| BA-CTE* | Basic Authentication with Chunked Transfer Encoding - outbound only |
| BA-FN | Basic Authentication with Filename Preservation of Payload - inbound and outbound |
| BA-FN* | Basic Authentication with Filename Preservation of Payload – outbound only |
| BA-FN-MA | Basic Authentication with Filename Preservation for Multiple Payloads – inbound and outbound |
| BA-FN-MA* | Basic Authentication with Filename Preservation for Multiple Payloads – outbound only |
| BA-MA | Basic Authentication with Multiple Attachments (Payloads) - inbound and outbound |
| BA-MA* | Basic Authentication with Multiple Attachments (Payloads) – outbound only |
| BA-SHA2 | Basic Authentication with SHA-2 - inbound and outbound |
| BA-SHA2* | Basic Authentication with SHA-2 – outbound only |
| SSL | Secure Sockets Layer (SSL) – requires encrypted transmission |
| Non-SSL | Supported Transmission without SSL |
| AES | Advanced Encryption Standard |
| CEM | Certificate Exchange Messaging |
| CTE | Chunked Transfer Encoding - inbound and outbound |
| CTE* | Chunked Transfer Encoding - inbound only |
| FN | Filename Preservation of Payload |
| FN-MA | Filename Preservation for Multiple Payloads |
| FN-MDN | Filename Preservation with MDN Error Reporting |
| MA | AS2 message supports Multiple Attachments (Payloads) |
| Reliability | AS2 messages and MDN delivery retried after network failure (retry or resend) |
| Restart | AS2 message restarts transmission from point of failure for very large payloads |
| SHA-1 | Secure Hash Algorithm 1 (All participants are required to support SHA-1) |
| SHA-2 | Secure Hash Algorithm 2 (optional) |
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