Digital Signature Certificate in Coimbatore
A Digital Signature Certificate, like hand written signature, establishes the identity of the sender filing the documents through internet. Digital Signature Certificate is a digital is a hand written signature which has an extra data attached electronically to any message or a document through online. A Digital Signature Certificate is normally valid for 1 or 2 years, after which it can be renewed. Digital Signature also ensures that no alterations are made to the data once the document has been digitally signed. Digital signatures are going to play an important role in our lives with the gradual online records and documents. A Digital Signature is a method of verifying the authenticity of an online document. The IT Act has given legal recognition to digital signature meaning, legally it has the same value as handwritten or signed signatures affixed to a document for its verification. The digital signatures are now accepted at par with handwritten signatures and the online documents that have been digitally signed are treated at par with paper documents.
Digital signatures are often used to implement electronic signatures, a broader term that refers to any electronic data that carries the intent of a signature, but not all electronic signatures use digital signatures. In some countries, including the United States, India, Brazil, and members of the European Union, electronic signatures have legal significance.
Digital signatures employ a type of asymmetric cryptography. For messages sent through a no secure channel, a properly implemented digital signature gives the receiver reason to believe the message was sent by the claimed sender. Digital signatures are equivalent to traditional handwritten signatures in many respects, but properly implemented digital signatures are more difficult to forge than the handwritten type. Digital signature schemes, in the sense used here, are cry photographically based, and must be implemented properly to be effective. Digital signatures can also provide non – repudiation, meaning that the signer cannot successfully claim they did not sign a message, while also claiming their private key remains secret, further, some non-repudiation schemes offer a time stamp for the digital signature, so that even if the private key is exposed, the signature is valid. Digitally signed messages may be anything represents able as a bit string: examples include electronic mail, contracts, or a message sent via some other cryptographic protocol.
Digital signatures vs. ink on paper signatures
An ink signature could be replicated from one document to another by copying the image manually or digitally, but to have credible signature copies that can resist some scrutiny is a significant manual or technical skill, and to produce ink signature copies that resist professional scrutiny is very difficult.
Digital signatures cryptographically bind an electronic identity to an electronic document and the digital signature cannot be copied to another document. Paper contracts sometimes have the ink signature block on the last page, and the previous pages may be replaced after a signature is applied. Digital signatures can be applied to an entire document, such that the digital signature on the last page will indicate tampering if any data on any of the pages have been altered, but this can also be achieved by signing with ink and numbering all pages of the contract.
Additionally, most digital certificates provided by certificate authorities to end users to sign documents can be obtained by at most gaining access to a victim's email inbox.
