ASC X12 004010

992 Authentication Service Code
TYPE=ID MIN=1 MAX=1

Authentication options 


1        ANSI X9.9 Authentication, Binary Data
2        ANSI X9.9 Authentication, "Coded Character Set, Entire Message, No Editing" 
         (Standard Value for X9.17 Authentication)
3        MD4 Hash
4        MD5 Hash
5        SHA Hash
Z        Mutually Defined