Error Code,Purpose,Reference
1001,Invalid NAI,[RFC9140]
1002,Invalid message structure,[RFC9140]
1003,Invalid data,[RFC9140]
1004,Unexpected message type,[RFC9140]
1005,Invalid ECDHE key,[RFC9140]
2001,Unwanted peer,[RFC9140]
2002,"State mismatch, user action required",[RFC9140]
2003,Unrecognized OOB message identifier,[RFC9140]
2004,Unexpected peer identifier,[RFC9140]
3001,No mutually supported protocol version,[RFC9140]
3002,No mutually supported cryptosuite,[RFC9140]
3003,No mutually supported OOB direction,[RFC9140]
4001,HMAC verification failure,[RFC9140]
5001,Application-specific error,[RFC9140]
5002,Invalid server info,[RFC9140]
5003,Invalid server URL,[RFC9140]
5004,Invalid peer info,[RFC9140]
6001-6999,Reserved for Private and Experimental Use,[RFC9140]