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Service composite data element specification    EDIFACT  Syntax Version 4

S502

SECURITY ALGORITHM   Identification of a security algorithm. Dependency Notes: 1. D5(030, 020) If first, then all 2. D5(050, 040) If first, then all 3. D5(020, 040) If first, then all 4. D5(070, 060) If first, then all 5. D5(060, 040) If first, then all Notes: 6. 0533, a mode of operation shall be chosen in relation to the chosen algorithm (data element 0527). Some combinations of mode of operation and algorithm are not appropriate.

Pos		Tag	Name	S	R	Repr		Notes
010		0523	Use of algorithm, coded Specification of the usage made of the algorithm.	M	1	an..3
020		0525	Cryptographic mode of operation, coded Specification of the mode of operation used for the algorithm.	C	1	an..3		1,3
030		0533	Mode of operation code list identifier Specification of the code list used to identify the cryptographic mode of operation.	C	1	an..3		1,6
040		0527	Algorithm, coded Identification of the algorithm.	C	1	an..3		2,3,5
050		0529	Algorithm code list identifier Specification of the code list used to identify the algorithm.	C	1	an..3		2
060		0591	Padding mechanism, coded Padding mechanism or padding scheme applied.	C	1	an..3		4,5
070		0601	Padding mechanism code list identifier Specification of the code list used to identify the padding mechanism or padding scheme.	C	1	an..3		4

Date  2002-05-23