Types of Digital Signature Certificates (DSC) and It’s Working Method

Digital signature certificate

A digital equalent of a hand written signature that can be used to verify the identity of the message sender or a document singer. A digital signature assures that no variation are made to the data once the document has been digitally signed.

Digital signature is consider to be one of the strongest tools to Cyber Security.

How it works : 

1.First you have to copy-and-paste the contract into an e-mail note. If your lawyer receive the message then ensure that it’s perfect and from you, your lawyer makes a hash of message.

2. Obtain a message hash of the contract by using special software. In case of lawyer ,he decrypt the message hash or summary by using your public key.The received message is valid if the hashes match.

3.Use a private key that you have previously obtained from a public-private key authority to hide the hash.

4.The encrypted hash become your digital signature.

Types of DSC

There are three types of digital signature certificate. They are Class 1, Class 2, and Class 3.

In Class1 type the validation process is based only on valid e-mail ID and require no direct verification that means Class1 type certificate do not hold any legal validity.

In Class 2 type the identity of a person is established against a reliable, proffered database.

The last one, Class3 type is the highest type of DSC because in these type the person needs to present himself or herself in front of Registration Authority. These type of signatures provide highest level of assurance.In India Class 3 type of signatures are mainly used for e-Tendering purpose.

The digital signature has many benefits like Corroborate electronic records,maintains Integrity etc, and it also consider as the strongest tools against cyber crimes.The validity of Digital Signature within 1 year to 2 year,after expiry it can be renewed.The time required for processing a digital signature is depending upon the completion of formalities.According to this it can take 2 hours to 24 hours for process the signature.


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