Secure Electronic Transaction

Secure Electronic Transaction (SET)is an application layer security instrument. SET isn’t only an installment framework, yet rather is considered as an arrangement of security conventions and organizations that empower clients to utilize the current charge card installment foundation on an open system in a protected pattern. SET is a something to guarantee the security of budgetary exchanges on the Internet. At first it found by mastercard and visa.

It has extremely unpredictable and nitty gritty specialized determination.

Some key highlights of the SET are:

• Confidentiality of data

• Integrity of information

• Cardholder account validation

• Merchant validation

How it does what is said it does:

The two cardholders and vendors must have their registeration finished with CA (testament expert) first, before they purchase or offer on the Internet. When enrollment is done, the previous can begin to do exchanges, which comprises of 9 essential strides in this convention, or, in other words.

1. Customer opens the site to perceive what ought to be bought according to his needs.

2. Customer sends request and installment based data, which has 2 sections in a single message:

a. Buy Order – this part is for vendor

b. Card Information – this part is for vendor’s bank as it were.

3. Merchant sends the card data to their bank

4. Merchant’s bank checks with Issuer for installment approval

5. Issuer send approval to Merchant’s bank

6. Merchant’s bank send approval to dealer

7. Merchant finishes the request and sends affirmation to the client

8. Merchant catches the exchange from their bank

9. The data is prints charge card charge (receipt) to client

SET members:


2. Trader

3. Guarantor


5. Declaration AUTHORITY

6. Installment GATEWAY

SET exchanges:

(1.) The client opens a record with a card guarantor.

MasterCard, Visa, and so forth.

(2.) The client gets a

X.509 V3 endorsement marked by a bank.

(3.) A vendor who acknowledges a specific brand of card must have two testaments.

– One for marking and one for key trade

(4.) The client puts in a request for an item or administration with a dealer.

(5. ) The shipper sends a duplicate of its authentication for confirmation.

(6. ) The client sends request and installment data to the vendor.

(7. ) The trader demands installment approval from the installment passage preceding shipment.

(8. ) The request is affirmed.

(9. ) The trader gives the products and ventures are conveyed.

(10.) The trader demands installment from the installment passage.

Key Technological parts of SET:

(1. ) Confidentiality of data: DES

(2. ) Integrity of information: RSA computerized marks with SHA-1 hash codes.

(3. ) Cardholder account validation: X.509v3 computerized authentications with RSA marks .

(4. ) X.509v3 computerized declarations with RSA marks: Merchant confirmation

(5.) Privacy: detachment of request and installment data utilizing double marks.

Double Signatures:

A development presented in SET is the double signature. The reason for the double signature is to connect two messages that are proposed for two distinct beneficiaries. For this situation, the client needs to send the request data (OI) to the vendor and the installment data (PI) to the bank.

The task for double mark is as per the following:

(a.) Take the hash (SHA-1) of the installment and request data.

(b.) These two hash esteems are linked H(PI) || H(OI) and after that the outcome is hashed.

(c.) Customer encodes the last hash with a private key making the double signature.

DS = EKRC H(H(PI) || H(OI))


Electronic Data Interchange (EDI) is known as the electronic exchange of business data utilizing a standard arrangement; a procedure which empowers one organization to send data to another organization electronically instead of with those conventional ones. Business elements directing business electronically are known as exchanging accomplices.

Utilizing EDI numerous business records can be traded. While the two most regular are the buy requests and solicitations. EDI replaces the mail planning and taking care of related with customary business correspondence. Clearly, the genuine aid of EDI is that it institutionalizes the data conveyed in business reports, which makes conceivable a “paperless” trade.

EDI semantic layer :

(a.) Describes the business application

(b.) Procurement precedent

EDI format:

EDI in real life Information stream without EDI:

Data stream with EDI:

EDI applications in business:

1. Universal or cross-outskirt exchange

2. Electronic subsidizes exchange

3. Medicinal services EDI for protection claims handling

4. Assembling and retail acquisition