1.10.2

A Java library that calculates/validates ISO/IEC 7064 check characters.

The algorithms include all pure systems plus the pure polynomial implementations of:

• ISO/IEC 7064, MOD 11-2 for numeric strings with one check digit or the supplementary check character "X"
• ISO/IEC 7064, MOD 37-2 for alphanumeric strings with one check digit or letter or the supplementary check character "*"
• ISO/IEC 7064, MOD 97-10 for numeric strings with two check digits
• ISO/IEC 7064, MOD 661-26 for alphabetic strings with two check letters
• ISO/IEC 7064, MOD 1271-36 for alphanumeric strings with two check digits or letters

This is a full implementation of the ISO/IEC standard. Also hybrid systems are implemeted:

• ISO/IEC 7064, MOD 11,10 for numeric strings with one check digit
• ISO/IEC 7064, MOD 27,26 for alphabetic strings with one check letter
• ISO/IEC 7064, MOD 37,36 for alphanumeric strings with one check digit or letter

CheckDigit numericCheck = IsoIecPure11System.getInstance();

String checkDigit = numericCheck.calculate("123456");
boolean isValid = numericCheck.isValid("123456X");

Additionally the lib contains valdators which use the ISO-IEC_7064 systems

• LEI (Legal Entity Identifier) Validator
• Leitweg Validator
• IBAN (International Bank Account Number) Check Digit calculation/validation
• Finnish VAT identification number (VATIN) Check Digit calculation/validation
• Greek VAT identification number (VATIN) Check Digit calculation/validation

Build with maven.

<!-- https://mvnrepository.com/artifact/io.github.homebeaver/isoiec7064 -->
<dependency>
    <groupId>io.github.homebeaver</groupId>
    <artifactId>isoiec7064</artifactId>
    <version>1.10.2</version>
</dependency>

1.10.0

The modules in this release are planned to be part of Apache commons-validator 1.10.0