GB/T 17710-2008: Information technology -- Security technique -- Check character systems

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Scope

1.1 This standard specifies a set of check character systems that prevent string errors that occur when copying or typing data. Length of string
Can be fixed or variable, including characters in the following character sets.
a) number (10 digits. 0 to 9);
b) letters (26 letters. A to Z);
c) Alphanumeric (letters and numbers).
Spaces and special characters embedded in the string are ignored.
1.2 This standard specifies the conformance requirements for the generation of check characters and check string products. These products use the system given in this standard.
1.3 These check character systems can check for the following errors.
a) all single character substitution errors (ie, a single character is replaced by another character, such as 1234 being misrecorded as 4234);
b) all or almost all single character swap positions are incorrect (ie two adjacent words or two single words separated by one character)
The position of the symbol is interchanged, such as 12345 is mis-recorded as 12354 or 12543);
c) all or almost all cyclic shift errors (ie, the entire string is cyclically shifted left or right);
d) most double replacement errors (ie, in the same string, two separate single characters are replaced incorrectly, such as 1234567 is misreported as
7234587);
e) Most other errors.
1.4 This standard does not include systems designed for the following purposes.
a) allows both error detection and automatic correction;
b) detecting intentional misuse;
c) Verify only the strings exchanged between machines.
1.5 This standard is used for information exchange between organizations and is highly recommended for internal information systems.

Basic Data

Standard ID	GB/T 17710-2008 (GB/T17710-2008)
Description (Translated English)	Information technology -- Security technique -- Check character systems
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	L71
Classification of International Standard	35.040
Word Count Estimation	19,193
Date of Issue	2008-07-16
Date of Implementation	2008-12-01
Older Standard (superseded by this standard)	GB/T 17710-1999
Adopted Standard	ISOIEC 7064-2003, IDT
Regulation (derived from)	Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard provides a set of check character system, it can prevent copying or key person in the data string generated an error. Length of the string can be fixed or variable, including the following character set: a) number (10 digits: 0 ~ 9), b) alphabet (26 letters