The International Organization
for Standardization
  
The United Nations Economic
Commission for Europe
 
 
  
Syntax 4 Part 11 > Segment description
  
  
  Service segment specifications 
USA
  
 
 
Pos 
 
Tag
Name
S
R
Repr
Notes
  
 
USA
SECURITY ALGORITHM
To identify a security algorithm, the technical usage made of it, and to contain the technical parameters required.

Notes:
1. S503, provides space for one parameter. The number of repetitions of S503 actually used will depend on the algorithm used. The order of the parameters is arbitrary but, in each case, the actual value is preceded by a coded algorithm parameter qualifier.
 
 
010
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.
M
1
 
 
Use of algorithm, coded
Specification of the usage made of the algorithm.
M
1
an..3
 
Cryptographic mode of operation, coded
Specification of the mode of operation used for the algorithm.
C
1
an..3
 
Mode of operation code list identifier
Specification of the code list used to identify the cryptographic mode of operation.
C
1
an..3
 
Algorithm, coded
Identification of the algorithm.
C
1
an..3
 
Algorithm code list identifier
Specification of the code list used to identify the algorithm.
C
1
an..3
 
Padding mechanism, coded
Padding mechanism or padding scheme applied.
C
1
an..3
 
Padding mechanism code list identifier
Specification of the code list used to identify the padding mechanism or padding scheme.
C
1
an..3
020
ALGORITHM PARAMETER
Parameter required by a security algorithm.
C
9
 
 
Algorithm parameter qualifier
Specification of the type of parameter value.
M
1
an..3
 
0554
Algorithm parameter value
Value of a parameter required by the algorithm.

Notes:
1. If necessary, this value shall be filtered by an appropriate filter function. Note that key names do not need to be filtered.
M
1
an..512
 
 
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UN D.22B Syntax
  
  
  
  
2022-12-20