CN100407217C

CN100407217C - Anti-faking and authentication method for bill using identifying code

Info

Publication number: CN100407217C
Application number: CN2005100492280A
Authority: CN
Inventors: 陈驰
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-26
Filing date: 2005-01-26
Publication date: 2008-07-30
Anticipated expiration: 2025-01-26
Also published as: CN1811789A

Abstract

The present invention relates to an anti-faking authentication system which verifies the authenticity of bill contents by using an identifying code. A section or a plurality of sections of a group of data which are obtained by using a bill number, an account, an issue date, amount, quantity, etc. (called elements for short, whole use or partial use) existing on a bill after the bill is drawn up as a variate and adding a digital key to be used as a constant to be calculated by a formula, are used as an identifying code. Then, the identifying code is marked on the bill. After the bill is transferred to a receiving unit, the identifying code is calculated by the same arithmetic formula, and the identifying code is compared with the identifying code on the bill so that the aim for verifying the authenticity of the bill is achieved.

Description

" identifying code " bill anti-counterfeit authenticating method

Technical field

The present invention is a kind of method for anti-counterfeit that the ticket contents authenticity is verified.Say so more specifically and prevent the bill fraud with the method for comparing identifying code.

Background technology

Because the current techniques means is advanced day by day, broad application such as scanning, laser engraving, the anti-counterfeit of seals means of generally using now are broken, increasing by the case that forge, alter finance and other bill are swindled, as to utilize the false proof way of signature more and more can not backed bill to use merely safety.Therefore the ticket applications field presses for the safety that a kind of safe, easy to use method for anti-counterfeit comes backed bill to use.

Summary of the invention

The objective of the invention is to overcome the shortcoming of existing anti-counterfeiting technology, proposed a kind of new bill anti-counterfeit method, strengthen the safety that bill uses.

The present invention is achieved by following technical scheme, there have been note number on the bill, account number, date of draft, the amount of money, quantity etc. after utilizing bill to open, adding digital secret key again utilizes the mathematical computations mode to carry out drawing one group of data after the computing, wherein one or more snippets of intercepting is labeled on the bill as identifying code then.After bill arrives recruiting unit, calculate identifying code with the identical calculations mode again, and compare with the identifying code on the bill, if consistent bill is true, otherwise be false.

Embodiment

Below be that example is further described the present invention just with the bank transfer check.

1, the check drawer has combined input such as the cheque number of filling on the check of having opened, account number, date of draft, the amount of money (hereinafter to be referred as key element) in the identifying code calculation procedure of data secret key, be verified sign indicating number after the operation, and be labeled in the blank space of check, give bearer or bank.Because identifying code can be printed on the existing general cashier's check by Hand writing or machine, so the check that uses can continue to use fully now.Certainly identification for convenience can be specified a unified labeling position in advance by bank.

2, account form generally can be provided by the bank of deposit, secret key can be provided by the bank of deposit or account holder, the corresponding corresponding secret key of each account holder (or each account number), for safety and convenient the use, general secret key can also can use more group of number and other character to form with 4 groups 8 tens digit, and input is in the identifying code calculation procedure of both sides' computing machine or other computational tool.

3, bank is after obtaining check, importing this cheque number, check drawer's account number, date of draft, the amount of money, identifying code etc. when manipulating needs the key element of input, by computer according to check drawer's account number from database, access automatically corresponding secret key and corresponding calculated mode calculate identifying code and automatically and the identifying code on the check compare, unanimity shows that then this check is legal, the program of can transferring accounts normally, otherwise be shown as illegally, check is ended to use.So also can verify use in other bank except that bank of deposit because the computer of present bank has generally carried out this check of networking.

4, since this method when calculating identifying code, in a single day used all relevant factors on the check,, identifying code had been lost efficacy so any key element on the bill occurs tampering, simultaneously because the uniqueness of secret key has only legal check drawer just can calculate the effective identifying code of oneself.The validity that identifying code is also just proofreaded by computing machine automatically by bank, the general staff also can only know the comparison result of identifying code, has so just further strengthened the security of check.So it almost is impossible that the disabled user wants to forge available check.

5, three simple example of following use illustrate the variation of different formula and key element and the relation that identifying code changes:

Example 1:

Getting six behind the radix point after " the calculating post code " of I row is calculated by formula (A*E+B*F+C/G)/SQRT (D*H) in the table draws.And J row identifying code 1 to be preceding 4 of the radix point of intercepting I column data obtain, K row identifying code 2 be behind the radix point of intercepting I column data 4 obtain.

Example 2:

Getting six behind the radix point after " the calculating post code " of I row is calculated by formula (A*F-B+E-C*G)/TAN (D/H) in the table draws.And J row identifying code 1 to be preceding 4 of the radix point of intercepting I column data obtain, K row identifying code 2 be behind the radix point of intercepting I column data 4 obtain.

Example 3:

Getting six behind the radix point after " the calculating post code " of I row is calculated by formula (A/E-B/F-C/G)/SIN (D/H) in the table draws.And J row identifying code 1 to be the radix point of intercepting I column data preceding 4 and be converted to sexadecimal and obtain, K row identifying code 2 is behind the radix point of intercepting I column data 4 and be converted to sexadecimal and obtain.

Three kinds of different account forms have been used in 3 examples in the above, identical data can obtain different identifying codes with different account forms, and the account form that can reach this effect is very many, and any in the employed check key element will make identifying code change in the account form and change.

Account form will be complicated and perfect more in actual use, the figure place of secret key also can be more, the group number also can increase, the identifying code of intercepting also can be other particular piece of data, because computing formula and secret key are to be hidden in through in the compiler language, the identifying code that is labeled on the check also is the fragment of result of calculation.So want to obtain computing formula and secret key almost is impossible by the calculating means.This method security and practicality have so just been strengthened greatly.

Check drawer even can give any bearer the blank check of building seal, open in needs by the bearer, open the back and tell the check drawer each key element on the check by phone or alternate manner, the check drawer calculates identifying code and tells the bearer after confirmation, fill in by the bearer, make check legal available, and do not worry the safety of blank check.Do not worry more that blank check is lost or stolen after safety problem.

6, because this method only needs a cover calculation procedure and corresponding secret key to calculate on computer or other computational tool and marked on check or authorized other people to mark by the check drawer, get final product in bank's checking of comparing, so under the relatively more universal situation of computing machine now, need to increase any equipment hardly.For safety, secret key or identifying code account form can be changed as required easily simultaneously, because it only can be finished between the account holder of bank of deposit and correspondence.

Certainly this method also can be used for the security purposes of other various similar bill.In order more further to strengthen the security of bill, the same special messenger of having only with signature of the use of identifying code calculation procedure just can use and need password to move, perhaps calculation procedure and secret key are deposited respectively, only just merge in use, have guaranteed the safety of fund so more.

Claims

1. " identifying code " bill anti-counterfeit authenticating method, it is characterized in that, existed note number, account number, date of draft, the amount of money, quantity on the bill to add digital secret key again after utilizing bill to open, after utilizing the mathematical computations mode to carry out computing, drawing one group of data intercepts wherein one or more snippets then and is labeled on the bill as identifying code, after bill arrives recruiting unit, calculate identifying code with the identical calculations mode again, and compare with the identifying code on the bill, if consistent bill is true, otherwise be false.

2. according to claims 1 described " identifying code " bill anti-counterfeit authenticating method, it is characterized in that described " identifying code " is metric arabic numeral.

3. according to claims 1 described " identifying code " bill anti-counterfeit authenticating method, it is characterized in that described " identifying code " is hexadecimal code.