Before we start talking about digital signatures in general, it is necessary to understand the growth of electronic documents and their importance in the modern day entrepreneurial framework. That said, electronic documents need to be validated and unlike paper-centric docs, conventional signatures aren’t going to be any good. This is where digital signatures come into the scheme of things as they are the best tools in hand for validating the integrity and authenticity of online messages and documents. Needless to say, the significance of a digital signature can be best interpreted while dealing with software entities or digital documents.
A digital signature can be termed as an electronic equivalent of a handwritten piece or even a seal which is intended towards offering decent levels of security to the digital documents. Therefore, it wouldn’t be wrong to assume that digital signatures have their place when it comes to render additional levels of security to transactions, messages, and even the electronic paperwork.
The Underlining Concept
When it comes to understand the concept behind digital signatures, it is the asymmetric cryptography that stands out. For someone deeply interested in how Digital Signatures work, they use the RSA or other algorithms for linking keys as public and private keys. With two mutually dependent cryptographic keys on offer, the end users need to constantly encrypt and decrypt information in order to gain access to the concerned files. This is what makes Digital Signatures extremely valuable.
In a layman’s language though, a digital signature is the common tool that allows all the existing parties privy to the document trust each other while keeping individual private keys secured.
How to Create a Digital Signature?
The inception of a digital signature is quite simplistic in theory. While a one way hash for the concerned electronic data needs to be created and signed, there has to be private key which would then be used to encrypt the sign or rather the hash. The entire hashing algorithm is known as the digital signature. This principle is primarily used as hashing takes less time than an electronic signature and is easier to work with provided one uses digital signature online.
Needless to say, there is also a decryption key in place which matches with the encryption code but in a different format. Therefore, if the encryption and decryption hashes match, one can be sure that data hasn’t been tampered with.
Where to use Digital Signature?
It goes without saying that a digital signature fits almost anywhere, provided electronic document security is concerned. However, there are three classes of Digital signatures and the usage actually depends on the complexity of each. While the class 1 DS can be used for validating usernames and email IDs, class 2 and class 3 digital signatures can be used along with GST returns and court filings respectively.
What needs to be understood is that firms, both private and public, are increasingly adopting digital signatures as they make room for exceptional levels of confidentiality and unmatched security.