INCITS/ISO 7064 : 2003

1 Scope
2 Terms and definitions
3 Symbols and notation
4 Types of systems
   4.1 Pure systems
   4.2 Hybrid systems
5 Compliance and designation
   5.1 Strings
   5.2 Check character generating products
   5.3 Checking products
   5.4 System designation
6 Specification of pure systems
   6.1 Formula
   6.2 Calculation
   6.3 Check character position
7 Computational methods for pure systems with one check
   character
   7.1 Pure system recursive method
   7.2 Pure system polynomial method
8 Computational methods for pure systems with two check
   characters
   8.1 Computation
   8.2 Example using recursive method
   8.3 Example using polynomial method
   8.4 Simplified procedure for ISO/IEC 7064, MOD 97-10
9 Specification for hybrid systems
   9.1 Formula
   9.2 Check character position
10 Computational method for hybrid systems
   10.1 Hybrid system recursive method
Annex A (informative) Criteria for the selection of check
        character system for applications
Annex B (informative) Check character systems for other
        alphabets
Bibliography

Describes a set of check character systems capable of protecting strings against errors which occur when people copy or type data. The strings may be of fixed or variable length and may have character sets.