Tuesday, March 20, 2012

Explain Different Types of e-Payment Security Schemes in e-Commerce

Explain E-payment Security Schemes


Explain Different Types of e-Payment Security Schemes in e-Commerce

Following are the e-payment security schemes
1) Encryption 2) Certificates & Certificates Authority (CA) 3) Digital Signature
4) Digital Envelop 5) Message Digest 6) Transaction Certificates and Time Stamp

(1) Encryption

Encryption refers to changing a message into unreadable form. Later the encrypted message can be converted into readable form by Decryption.
There are two types of Encryption

(A) Secret Key Encryption/Private Key Encryption

In this scheme, same key called secret key is used by sender and receiver for Encryption (Making message unreadable) & Decryption (Getting original message).



Data Encryption Standards (DES) is the most widely used algorithm for secret key/private key encryption scheme.

(B) Public Key Cryptography




It is Also known as asymmetric Encryption. It uses two different keys (1) Private Key (2) Public Key. The receiver sends his public key to sender. The sender encrypts message with this public key. Then Message is sent to receiver. Now Receiver uses his private key to decrypt message.

2. Certificates & Certificates Authority (CA)

A certificate represents and identifying certificate issued by a trusted third party called Certificate of Authority. A certificate includes records such as series number name of Owner, Name of CA & Digital signature of CA.

Explain Different Types of e-Payment Security Schemes in e-Commerce

(VeriSign is a most popular pioneering CA. Established in 1999).

3. Digital Signature

Digital signature is a phrase (like Ahmed, Saeed Malik). It Is Encrypted by Sender’s private key. Digital signature is attached with the encrypted message and sent to receiver. Digital signature ensures that sender is verified. Receiver will use sender’s public key to decrypt message.

4. Digital Envelope

Is another encryption scheme. It is used to encrypt a secret key with the receiver’s public key. Now encrypted message & key is sent to receiver. Receiver will open the key first and then he will decrypt the message with this key.

5. Message Digest

It helps to verify that a message is not changed in its way from sender to receiver. Message digest is a bit string. It is unique for each message. A special formula is called hash function is used to calculate message digest of a message. The encrypted message with message digest is sent to receiver. Now if message is changed in the way then its message digest will not match.

6. Transaction Certificates and Time Stamp

A transaction certificate attests to some fact about the conduct of a transaction. It can be used to prevent repudiation (denial). Similarly a time stamp ensures that a document was present at a particular time.


Basics of eCommerce

  1. Definition and History of ECommerce
  2. Role of E-Commerce in Daily Life
  3. Classification of e-Commerce Applications
  4. Difference Between Electronic Market and IOS
  5. Types Of e-Commerce


Ecommerce Payment Systems/ ePayment

  1. Types of Popular e-Payment Systems
  2. Explain Credit Card Payment System
  3. Advantages Disadvantages of Credit Cards
  4. Difference Between Debit Card and Credit Card
  5. Types of E-payment Security Schemes
  6. Types of e-Payment Security Protocols

Difference Between Debit Card and Credit Card

Difference Between Debit Card and Credit Card:

Difference between debit card and credit card

Difference between debit card and credit card

       
Debit Card
Credit Card
1.      Debit card id equal to your account value.
2.      It is an Asset
3.    To use a debit card customer should have      sufficient balance in his / her bank account.  
4.      It is like a Prepaid system
5.     You cannot buy an item with price higher then your balance.
1.    When you use Credit Card. You are Actually borrowing money from bank/financial institution
2.     It is Liability
3.     To use a Credit card customer may not have sufficient balance.
4.     It is like a Postpaid system
5.    You can buy an item with price higher then your bank balance (upto your credit limit.)

Basics of eCommerce

  1. Definition and History of ECommerce
  2. Role of E-Commerce in Daily Life
  3. Classification of e-Commerce Applications
  4. Difference Between Electronic Market and IOS
  5. Types Of e-Commerce


Ecommerce Payment Systems/ ePayment

  1. Types of Popular e-Payment Systems
  2. Explain Credit Card Payment System
  3. Advantages Disadvantages of Credit Cards
  4. Difference Between Debit Card and Credit Card
  5. Types of E-payment Security Schemes
  6. Types of e-Payment Security Protocols

Explain Advantages and Disadvantages of Credit Cards

Credit Card

The Credit Card is plastic credit card with a magnetic strip issued by a bank or financial institution. Holders of a valid credit card have the authorization to purchase goods and services up to a predetermined amount, called a credit limit.
Explain Advantages and Disadvantages of Credit Cards
Explain Advantages and Disadvantages of Credit Cards

The vendor receives essential credit card information from the cardholder, the bank issuing the card actually repays the vendor, and eventually the cardholder repays the bank through regular monthly payments. If the entire balance is not paid in full, the credit card issuer can legally charge interest fees on the unpaid portion.

Benefits of Credit Cards to customers


1.  Convenience

The main benefit to each customer is convenience as carrying a credit card eliminates the need to carry any cash for most purposes.

2. Credit card allows small short-term loans

Compared to debit cards and checks, a credit card allows small short-term loans to be quickly made to a customer who need not calculate a balance remaining before every transaction, provided the total charges do not exceed the maximum credit line for the card.

3. More fraud protection than debit cards

 Credit cards also provide more fraud protection than debit cards. In the UK for example, the bank is jointly liable with the merchant for purchases of defective products over £100.

4. Rewards and benefits packages

Many credit cards offer rewards and benefits packages, such as offering enhanced product warranties at no cost and free loss/damage coverage on new purchases.

Drawbacks of Credit Cards

Compel you to spend more

Credit cards give you the purchasing freedom so they can compel you to spend more than what your budget would allow.

Prone to security issues

Credit cards are prone to security issues, especially when it comes to online transactions. This can be avoided by doing business with websites that employ a secured socket layer (SSL), however.

Interest Rates and Other Applicable Fee

Credit cards impose interest rates and other applicable fees.


Basics of eCommerce

  1. Definition and History of ECommerce
  2. Role of E-Commerce in Daily Life
  3. Classification of e-Commerce Applications
  4. Difference Between Electronic Market and IOS
  5. Types Of e-Commerce


Ecommerce Payment Systems/ ePayment

  1. Types of Popular e-Payment Systems
  2. Explain Credit Card Payment System
  3. Advantages Disadvantages of Credit Cards
  4. Difference Between Debit Card and Credit Card
  5. Types of E-payment Security Schemes
  6. Types of e-Payment Security Protocols

Monday, March 19, 2012

Explain Different Types of Popular e-Payment Systems

What are the popular e-payment systems? Explain.



Explain Different Types of Popular e-Payment Systems
Explain Different Types of Popular e-Payment Systems



The following are the most popular e-payment systems
1) Credit Card 2) Debit card 3) EFT 4) Stored value cards and e-cash 5) e-checks


1: Credit Card

 
What are different types of e-payment systems in e-commerce
What are different types of e-payment systems in e-commerce

The Credit Card is plastic credit card with a magnetic strip issued by a bank or financial institution. Holders of a valid credit card have the authorization to purchase goods and services up to a predetermined amount, called a credit limit. The vendor receives essential credit card information from the cardholder, the bank issuing the card actually repays the vendor, and eventually the cardholder repays the bank through regular monthly payments. If the entire balance is not paid in full, the credit card issuer can legally charge interest fees on the unpaid portion.

2: Debit Card:


A debit card is a plastic card issued by banks to customers. The card allows instant purchase, removing the correct balance from the user’s attached bank account. Debit cards are distinct from credit cards in that they allow purchase based on available funds in the account to be deducted immediately, instead of by using a line of credit that can be repaid at a later time. Debit card/Check card is used instead of cash in shopping. The Buyer’s account is instantly debited. It is an alternative to carry cash or check book.
Advantages:

  • Obtaining Debit card is easier then Credit card.
  • Debit card frees you from carrying cash.
  • Merchants prefer debit card then check.

3.ELECTRONIC FUND TRANSFER (EFT):


Electronic fund transfer is used to transfer money value from one account to another in same or different bank electronically. EFT refers to any fund transfer initiated by an electronic terminal, including Credit card, ATM, Point of sale terminal or Internet based EFT.
EFT is safer, secure, efficient and less expensive. While it costs the U.S Govt $1.03 to issue each check payment. It costs only .05 cents to issue on EFT payments.

4. Stored value cards & E-Cash:


E-Cash is cash usually stored in smart card or E-Wallet. It can be used for micro E-Payments. Suppose a consumer has purchased a digital picture or listened a song for $.25 fee.
Now the minimum cost to process E-Payment by credit card is about $1.00 which should be charged to seller. In such cases E-Cash payment system can be used.

5. Electronic Check or e-check:

A form of payment made via the internet that is designed to perform the same function as a conventional paper check. Because the check is in an electronic format, it can be processed in fewer steps and has more security features than a standard paper check. Security features provided by electronic checks include authentication, public key cryptography and digital signatures. Electronic checks have been developed in response to the e-commerce transactions. Electronic checks can be used to make a payment for any transaction that a paper check can cover and are governed by the same laws that apply to paper checks.This is the first form of internet-based payment that the U.S. Treasury uses for making large online payments.
An eCheck is an electronic order to your bank to pay the amount specified from funds in either your checking or savings account. This is also referred to as a web check or an ACH payment.
To process an eCheck, you must enter your bank information into the student eCommerce system. The bank information needed is your bank's 9-digit bank routing number and either your checking or savings account number.

Wednesday, March 14, 2012

Explain Credit Card Payment System

Electronic Credit Card System on Internet

Credit cards are the most popular E-Payment method. The Credit Card is plastic credit card with a magnetic strip issued by a bank or financial institution. Holders of a valid credit card have the authorization to purchase goods and services up to a predetermined amount, called a credit limit. There are the following 5 entities involved in Credit Card System as follows:



Entities Involved in Credit Card Payment System

1. Card Holders.
2. Merchants
3. Card Issuer (Bank / financial institution for Card Holder)
4. Acquirer (Bank / financial institution for Merchant)
5. Card Brand (Company - Master, Visa card)



Process of using Credit Card


1. Issue a Credit card to potential card holder.
2. A person requests to an issuing bank for Credit Card. The bank approves or denies the application. If approved a plastic card is delivered to the customer by mail. The card holder calls the bank to activate the card.
3. Card holder shows card to merchant or enter information at website to buy something.
4. Merchant asks approval from Card Company. Transaction is paid by credit and Merchant keeps sales slip
5. Merchant sends sales slip to acquirer bank and pays fees for the service. This is called “capturing process”
6. Acquiring bank requests the card company to clear credit amount and gets paid
7. Then Card Company asks for clearance to issuing bank.
8. The amount is transferred from issuer to brand company. The same amount is deducted from card holder’s account in issuing bank.


Basics of eCommerce

  1. Definition and History of ECommerce
  2. Role of E-Commerce in Daily Life
  3. Classification of e-Commerce Applications
  4. Difference Between Electronic Market and IOS
  5. Types Of e-Commerce


Ecommerce Payment Systems/ ePayment

  1. Types of Popular e-Payment Systems
  2. Explain Credit Card Payment System
  3. Advantages Disadvantages of Credit Cards
  4. Difference Between Debit Card and Credit Card
  5. Types of E-payment Security Schemes
  6. Types of e-Payment Security Protocols

Sunday, March 11, 2012

Types Of e-Commerce

Types/Categories/Modes of e-commerce.

There are three main types of e-commerce as follows:

1) Business To Consumer (B2C)


B2C ecommerce consists of selling goods and services to individual consumers. In this type, consumers or customers can visit the website and purchase goods online. The website will have a StoreFront. This storefront will show product details, pictures and a shopping cart. Shopping cart is used to collect items to purchase.

Advantages of B2C e-commerce

B2C e-commerce has the following advantages:

* Shopping can be faster and more convenient.
* Offerings and prices can change instantaneously.
* Broadband telecommunications will enhance the
buying experience.

2) Business To Business (B2B)




B2B e-commerce takes place between two businesses. One business provides services to other business. Examples of B2B include:
Online Advertisement, recruiting, sales, marketing, technical support and training. For eample, some companies provide online purchasing, tracking and transaction facilities to other companies.

3) Consumer To Consumer (C2C)




C2C e-commerce takes place between two consumers. For example, one consumer sells an item through online auction. The other consumer purchases this item by offering the highest bid.
There are many sites offering free classifieds, auctions, and forums where individuals can buy and sell. Thanks to online payment systems like PayPal where people can send and receive money online with ease.


eBay's auction service is a great example of C2C where person-to-person transactions take place everyday since 1995.


Basics of eCommerce

  1. Definition and History of ECommerce
  2. Role of E-Commerce in Daily Life
  3. Classification of e-Commerce Applications
  4. Difference Between Electronic Market and IOS
  5. Types Of e-Commerce


Ecommerce Payment Systems/ ePayment

  1. Types of Popular e-Payment Systems
  2. Explain Credit Card Payment System
  3. Advantages Disadvantages of Credit Cards
  4. Difference Between Debit Card and Credit Card
  5. Types of E-payment Security Schemes
  6. Types of e-Payment Security Protocols

Wednesday, March 7, 2012

Difference Between Electronic Market and IOS





IOS
E-Market
1
IOS may use private or publicly accessible network.
E-Market may use publicly accessible network.
2
Customer supplier relationship is determined in advance. It is expected that it is ongoing relationship for multiple transaction.
Two types of relationship (i) Customer to seller linkage is established at time of transaction for one time only.  (ii) Customer seller linkage is established for a fixed time period.

3
Agreements on nature and format of business document.
Sellers market maker determine which transaction they will provide.
4
Advance arrangements are made so that both parties know which communication network will be used for system
Customer and seller independently determine which communication network they will use.
5
Joint guidelines are formulated so that each party will know how system is used.
No joint guideline are formulated in advance.


Basics of eCommerce

  1. Definition and History of ECommerce
  2. Role of E-Commerce in Daily Life
  3. Classification of e-Commerce Applications
  4. Difference Between Electronic Market and IOS
  5. Types Of e-Commerce


Ecommerce Payment Systems/ ePayment

  1. Types of Popular e-Payment Systems
  2. Explain Credit Card Payment System
  3. Advantages Disadvantages of Credit Cards
  4. Difference Between Debit Card and Credit Card
  5. Types of E-payment Security Schemes
  6. Types of e-Payment Security Protocols

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