994 Encryption Service Code
TYPE=ID MIN=1 MAX=3
Coded values representing options for encryption processing, including the use of compression and filtering; the code either defines the encryption mode and the transmission filter specification for filtering binary data into transmittable text or specifics that the following subelements define these values
20 ANSI X9.23 Cipher Block Chaining (CBC), No Filter (Binary Cipher Text)
21 ANSI X9.23 Cipher Block Chaining (CBC), Hexadecimal Filter
22 ANSI X9.23 Cipher Block Chaining (CBC), ASCII Filter
23 ANSI X9.23 Cipher Block Chaining (CBC), ASCII/BAUDOT Filter
2Z ANSI X9.23 Cipher Block Chaining (CBC), Mutually Defined Filter
40 ANSI X9.23 CFB-8 (Cipher Feedback); No Filter (Binary Cipher Text)
41 ANSI X9.23 CFB-8 (Cipher Feedback), Hexadecimal Filter
42 ANSI X9.23 CFB-8 (Cipher Feedback), ASCII Filter
43 ANSI X9.23 CFB-8 (Cipher Feedback), BAUDOT Filter
4Z ANSI X9.23 CFB-8 (Cipher Feedback), Mutually Defined Filter
AA Parameters Defined Individually
ZZ Mutually Defined