GB/T 17710-2008
Information technology.Security technique.Check character systems (English Version)
- Standard No.
- GB/T 17710-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 17710-2008
- Replace
- GB/T 17710-1999
- Scope
- 1.1 This standard specifies a set of check character systems, which can prevent string errors when copying or typing data. The length of the string can be fixed or variable, including characters in the following character sets: a) numbers (10 numbers: 0~9); b) letters (26 letters: A~Z); c) alphanumerics (Letters and numbers). Embedded spaces and special characters in the string are ignored. 1.2 This standard violates the conformance requirements for generating check characters and check strings for products that use the system given in this standard. 1.3 These check character systems can detect the following errors: a) all single character substitution errors (that is, a single character is replaced by another character, such as 1234 is wrongly recorded as 4234); b) all or almost all single character character swap position error (that is, the positions of two adjacent characters or two single characters that are one character apart, such as 12354 or 12543); c) all or almost all cyclic shift errors (that is, the entire string is replaced by cyclic shift left or right); d) most double substitution errors (that is, in the same string, two separate single character substitution errors, such as 1234567 is wrongly recorded as 7234587); e) most other mistake. 1.4 This standard does not cover systems specifically designed to: a) allow both error detection and automatic correction; b) detect deliberate misuse; c) verify only strings exchanged between machines. 1.5 This International Standard is intended for information exchange between organizations and is highly recommended for internal information systems.
GB/T 17710-2008 history
- 2008 GB/T 17710-2008 Information technology.Security technique.Check character systems
- 1999 GB/T 17710-1999 Data processing--Check character systems