System and method for generating identifiers for uniquely identifying object types for objects used in processing of object-oriented programs and the like
US5815709A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1996 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Apr 23, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/9014
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fingerprint generating system generates a fingerprint value for an object in an object-oriented programming arrangement. The object comprises a digital information stream and the fingerprint generating system generates a fixed-length fingerprint value from the digital information stream. The fingerprint generating system receives the digital information stream comprising the object and processes the digital information stream in accordance with a selected hash value generating algorithm to generate a hash value which comprises the fingerprint value. The hash value generating algorithm is selected from a class of hash value generating algorithms characterized in that: PA1 i. in response to said input digital information stream, a digital hash value having a predetermined number of digital bits will be generated as an output; PA1 ii. the digital hash value will be a function of the digital information stream, so that PA2 (a) given two input streams that are identical, identical digital hash values will be generated; but PA2 (b) given two input streams that are not identical, it is extremely unlikely that identical digital hash values will be generated; and PA1 iii. when the object,…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.