How the fingerprint reader works in the ISO8583 payments simulator

Posted on 20th Oct 2018 7719 views

In the simplest form, the fingerprint reader will be called to read a fingerprint when you use the keyword **FINGERREADER** in the field where you want the fingerprint data to be populated.

But let us start from the beginning.

A fingerprint verification is done by checking 2 fingerprints: the capture fingerprint is verified against the enrolled fingerprint. This means that in order to do this, you need to start with enrolling a fingerprint.

1. Enroll fingerprint

The Issuer must have a fingerprint enrolled in order to be able to verify a fingerprint. In the ISO8583 payments simulator this is done by calling function "performFingerPrintVerification()" which will do two things: enroll a finger and verify a finger.

The Enroll will ask you to put your finger 5 times on the reader so it can capture as much information as possible about your fingerprint. The more detailed this is, the more likely it is to get a match when you verify.

The Verify in this step is just to make sure that everything works correctly and in case of a verification, we are successful.

The result of the enrollment is showed in the console as a hashed fingerprint, as a string. This is the Enrollment fingerprint.

2. Save fingerprint

The Issuer must possess the enrolled fingerprint if it needs to be able to perform a verification. In order to do this, in a testing situation, we simply copy the Enrolled fingerprint from the console, and we save it in the card details sheet.

In the Issuer Payments simulator we can simply paste this value next to the card ID/number that we want to have this fingerprint enrolled. In case of an authorization system, we place this in the card record, in the database.

3. Capture fingerprint

The Acquirer must be able to capture a fingerprint in order to send it to the Issuer for verification.

The keyword **FINGERREADER** must be placed the ISO8583 field where we want the fingerprint to be loaded. In this case 113. That is it.

When the simulator will start building the fields, it will find this keyword, will call the core to get a fingerprint from the user, the core will activate the reader, capture a fingerprint (correctly), store it in the field, and continue to build the message.

4. Verify fingerprint

The Issuer has the capability to verify the received fingerprint in DE113.

When the message contains a value in field 113, the Issuer starts to perform the verification. First, it looks up the fingerprint in the card row or record. If the row has **NOVALUE** then it just writes that fingerprint verification cannot be performed. 

If it does find a fingerprint in the card row/record, then it performs a comparison between the received value and the stored value, automatically.

 

 

 

 


LinkedIn

Docs Home ISO8583 Simulator Simulator Tutorials ISO8583 Converter Cards Issuer BASE24 Base24-eps Reference Guide ISO8583 Switch HSM Simulator POS Simulator Products Switch


Top Read Articles


BIN List & Range for MasterCard, Visa, Amex, Diners, Discover, JCB, CUP 199746 views

ISO8583 Response Codes for Transaction processing 83554 views

Read smart card chip data with APDU commands ISO 7816 68747 views

ISO8583 Processing Codes for Transaction Processing 37056 views

ISO8583 Message Types for Transaction Processing 35899 views

MCC Codes - Merchant Category Codes to use in ISO8583 Field 18 25219 views

Deploy, run and generate with neaPay Card Data Generator 23564 views

Run the neaPay ISO8583 simulator 22556 views

ISO8583 message: The list of ISO 4217 currency codes for data elements 49 and 52 20276 views

ISO8583 payments message format, programmers guide 20005 views

ISO8583 ATM POS Crypto API integration with exchanges like Coinbase or Binance 17925 views

Cards and Banks Training 15877 views

ISO8583 Message Converter JSON and XML interface specification mapping 15690 views

Java version for neapay products Simulator Converter Switch Authorization Cards Issuer 14720 views

Log Files in BASE24 classic 11314 views

Support for the neaPay products: Authorization, Switch, Converter, Simulator, Issuer 11282 views

BASE24 classic vs BASE24-eps 10318 views

BASE24 documentation to read 9988 views

Create a new test case in the neaPay ISO8583 simulator Video guide 9819 views

EMV explained for programmers 9471 views

BASE24 classic interview questions 9447 views

Deploy the neaPay ISO8583 simulator - video guide 9167 views

ISO8583 converter to JSON XML SQL to HTTP host - message flow - video guide - Part.2 8910 views

ISO8583 Simulator neapay- Performance testing at 500, 1000 and 1500 Transactions per second 8859 views

ISO8583 converter to JSON XML SQL to HTTP Host - host unavailable - video guide- Part.3 8407 views

Load Test enabling and performance testing at 1TPS and 100TPS 8152 views

ISO8583 converter to JSON XML SQL to HTTP host - start& run - video guide - Part.1 8141 views

BASE24 classic screens examples explained 8138 views

Run the neaPay ISO8583 converter to JSON, XML, SQL, in a test environment 8031 views

Changing fields definitions in the ISO8583 simulator and message converter 7998 views

Adding your own card to the Payments simulator to test your system 7965 views

Run One, Run Scenario, Run All, Run Load in the neaPay ISO8583 Simulator - Use guide 7902 views

Connect the neaPay ISO8583 Acquirer simulator to your own host or Issuer 7859 views

Card readers supported by neaPay payments simulator, CHIP and NFC 7852 views

BASE24-eps interview questions 7833 views

Deploy the neaPay HSM simulator in a test environment 7778 views

Sample Recommended design for an Acquirer test cases suite, Scenarios and Regression 7723 views

How the fingerprint reader works in the ISO8583 payments simulator 7720 views

Enabling traces in the payments simulator 7715 views

Altering test cases in Excel for the ISO8583 simulator 7704 views

Deploy the neaPay ISO8583 Payments converter in a test environment 7674 views

Trace configuration in neaPay Simulator, Converter, Switch, Authorization and Cards Issuer 7474 views

Regression Testing in 1 click with instant Analytics and CSV report 7370 views

BASE24 classic cards configuration tutorial with Examples 7274 views

Deploy the Payments Switch Router in a test environment 7260 views

BASE24 classic ATM configuration Tutorial in ATD and XPNET with examples 7142 views

Add extra custom fields to the ISO8583 simulator 7120 views

ISO8583 Message Converter to XML SQL CSV interface specification mapping 7003 views

PCI compliant with neapay switch 6756 views

BASE24-EPS ACI DESKTOP tutorial - Getting started 6615 views

POS simulator format SPDH HPDH Verifone and custom 4835 views

BASE24 classic prefix configuration tutorial CPF with examples 4759 views

BASE24 classic tracing of transactions. Audits, configuration, enabling and opening 4595 views

BASE24 classic Institution configuration Tutorial with example 4250 views

ACI BASE24 classic automatic extract configuration 4114 views

BASE24 classic balance file configuration PBF with example 4037 views

First steps with BASE24 Classic 3888 views

Getting started with using Prognosis for BASE24 and BASE24-eps 3770 views

Swift Message Structure ISO 15022 and ISO 20022 2542 views

SWIFT Message types complete list reference 2016 views

SWIFT Common Message Type List with examples 1823 views

ISO8583 Load Balancer with neapay Switch Router 1809 views

ISO8583 Card Transaction BIN Prefix Router with neapay Switch 1809 views

ISO8583 simulator scheduling tasks and test regressions 1806 views

ISO8583 simulator Visa MasterCard Amex CUP configuration demo video 1250 views

POS Transaction types explained 1167 views

Recent Articles on Iso8583


Choose the product you need



ISO8583 Converter

Convert ISO8583 to JSON XML SQL


ISO8583 Interface

ISO8583 Interface Handler


ISO20022 Converter

Convert ISO20022 to ISO8583 ...


ISO8583 Builder

Build ISO8583 from scratch


ISO8583 Switch

ISO8583 Router by criteria


ISO8583 Authorization

Authorize cards and ledger


Payments Acquirer

Acquiring host from devices


Cards Issuing

Generate and issue cards


ISO8583 Simulator

ISO8583 HISO98 HISO87 simulator


ISO20022 Simulator

ISO20022 & SWIFT simulator


POS Simulator

POS protocols simulator


Web Api Simulator

Web API tester Performance

 

Get a free quote, Ask for details
Get help

Contact us

Try the software yourself
Download

Download software

Read Documentation and Start guides

Documentation

Online Tools Overview

Online Tools