AS2 Decryption Failed: Fixing Certificate and Algorithm Mismatches
Fix the AS2 decryption-failed MDN error: wrong certificate after rollover, key mismatch, 3DES vs AES conflicts, corrupted PKCS#7, and wrong certificate purpose.
8 min read
AS2 Testing Blog
Expert guides on AS2 connection testing, certificate management, EDI compliance, and troubleshooting common AS2 issues.
Your Trading Partner Says Their Cert Is Fine. A Field Guide to Proving Who's Actually Wrong
When an AS2 connection fails, both sides insist their config is fine. Here's the elimination method for producing evidence instead of assertions.
9 min read
What Is an AS2 Certificate? Everything You Need to Know
Definitive guide to AS2 certificates: how public/private keys work, CA-signed vs. self-signed, certificate exchange process, and renewal procedures.
10 min read
How to Fix AS2 Certificate Errors: A Practitioner's Troubleshooting Guide
Diagnose and fix the most common AS2 certificate errors, from expired certs to format mismatches. Practical steps with OpenSSL commands you can run right now.
11 min read
Stop Guessing: Validate Your AS2 Certificates Before They Break Production
The AS2 certificate validation checklist you wish you had last time a cert blew up your connection at 2am. Covers formats, key sizes, chain validation, expiry traps, and every common error message decoded.
8 min read