CSM Cryptographic Service Message Header

To indicate the beginning of a Cryptographic Service Message (CSM) Transaction Set and to provide both the class or type of the CSM and the cryptographic end parties to the transaction

Position: CSM-01 · Element: 987 · Name: Cryptographic Service Message (CSM) Message Class Code · Type: Identifier (ID) · Requirement: Mandatory · Min: 3 · Max: 4 · Repeat: 1

Message class (MCL)

Position: CSM-02 · Element: 824 · Name: Security Originator Name · Type: String (AN) · Requirement: Optional · Min: 1 · Max: 64 · Repeat: 1

Unique designation (identity) of the cryptographic process that performs authentication or encryption on data to be interchanged, or originates a cryptographic service message Note: X9 has a minimum length of 4 characters for the security originator; no mechanism, or registration method is provided by X9 or X12 to guarantee the uniqueness of the identifier

Position: CSM-03 · Element: 825 · Name: Security Recipient Name · Type: String (AN) · Requirement: Optional · Min: 1 · Max: 64 · Repeat: 1

Unique designation (identity) of the cryptographic process that performs authentication or decryption on received data, or is the destination of a cryptographic service message Note: X9 has a minimum length of 4 characters for the security recipient; no mechanism, or registration method is provided by X9 or X12 to guarantee the uniqueness of the identifier