New Delhi, India. People utilize e Signature for verification, it could be explained with a help of example. Suppose a person is about to send a signed message to other that time sender creates the message digest with hash function. Digest function is similar to a fingerprint any single modification would return some different outcome. Whenever you receive such massage then it would be encrypted by the first person with the private key and this form of message is digital signature. Now the sender will send the information and e sign to second person. The recipient will decrypt the information by using public key without any problem.
Once the message sent to the other person, receiver can verify the information with the use of hash function that has been used by sender and compare the results with message. If hash function is similar then the receiver will get confident that information has been sent by some known otherwise it is insecure. It is important part of infopath e signature that the sender can ensure for security of information by encryption with public key of receiver. Receiver can decrypt by private key and get the information. Always remember that it is not possible to find two messages hashing to same value or one hashing the given value. If you ever receive such message then understand that hacker appends the fake message with sender digital signatures.
Most of the people are not aware with that there can be one or more than one digital certificate with one e signature. Key remain valid for particular time, usually the key expires after one year. Remember that file or message signed with the expired key will not be accepted. But you may find many circumstances where the document signed would be regarded to be valid file long after the expiry which is more than two years. The examples included are contracts and long term lease. Many times people use digital time stamping at the time it is signing the documents as the e sign can be verified long after the key is expired.
It is mandatory that the parties should keep a copy of the stamp which will be an evidence to show that the agreement was signed by the valid keys, even after key expired. With advancement of digital signature the time-stamp digital signature containing document which will confirm the integrity of sign after the expiration of the key. With so many advantage related to e sign, most of the organizations across the world invest many dollars in automating their business processes and operations. Electronic documentations are getting success in every field from government to life sciences and healthcare to engineering. Today every business organization required efficient, cost-effective and secure means to perform their tasks.
About Us:- With so much of possibilities, it can be said that our digital signature is useful in transaction, legal cases, fraud and corrupting. Just by utilizing a highly automated workflow, our e Signature has reduced the time allocations and expenses of organizations. Not to forget that the maximum communication is taking place electronically these days.