After reading chapter 13, analyze the advantages and disadvantages of digital signatures.
1. Acknowledge the other student’s post with some form of recognition about what they posted
2. Relate their posting to something you have learned or are familiar with
3. Add to the conversation by asking additional questions about their post, or discussing their topic further
post from Naren:
Digital signatures are arithmetic techniques used to validate the integrity and authenticity of a message. They are the public-key essentials of message authentication and binds an individual to a message or digital document. According to Kaur and Kaur (2012), a digital signature is often inserted into a computing device and can also exist as a file on a storage device. The purpose of a digital signature is to provide evidence of the identity and origin of a document or transaction. As a result, they are used to recognize informed consent. Digital signatures are usually based on public-key cryptography and individuals often create these signatures using private keys to encrypt signature-related data, while the signer decrypts it with their public key.
Digital signatures offer numerous advantages to businesses and individuals. One of its primary advantages is that it offers more security as compared to other contracts. Since it is based on digital certificates, these signatures provide asymmetric encryption to allow for the verification of the identities of parties. Digital signatures also tend to act as evidence for transactions and other digital agreements. This is because they assist in identifying and authenticating signatories as well as collecting data that may be beneficial as a form of evidence. The recipient of any message can use a digital signature as evidence in showing a third party that the signature was generated by the intended signatory (Kerry & Gallagher, 2013). As a result, the signatory will be unable to revoke the signature at a later date.
Digital signatures do however have some drawbacks. One of its primary disadvantages is that they are heavily dependent on the technology used to create it. Therefore, as technology evolves, the digital signatures have to change as quickly and may lose their functionality. Another disadvantage of digital signatures is that they are not liked to real-world events and it is difficult to determine how a digital string was generated and the duration of the operation (Maurer, 2003). Furthermore, for one to use a digital signature, one must purchase digital certificates to use the technology. These digital certificates are often expensive and most users may not be able to afford them.
post from Muhammed
A digital signature is a scheme of mathematics that is utilized to validate the sender of a document considered to be electronic. It guarantees that the report is truly from the sender and not from another person while simultaneously guaranteeing that the message that arrives at the beneficiary is a similar one sent with no adjustments. Digital signatures are exceptionally proficient in lawfully restricting records since they are hard to mimic and they can e time-stamped. The first advantage is the speed since organizations presently don’t need to sit tight for paper records to be sent by messenger. Agreements are effortlessly composed, finished, and endorsed by totally concerned gatherings in a little measure of time. The second pro is the cost as utilizing postal or dispatch administrations for paper reports is significantly costlier contrasted with utilizing digital signatures on electronic records. The third advantage is the security as the utilization of digital signatures and electronic reports decreases dangers of documents being blocked, perused, obliterated, or modified while on the way. Fourth advantage is authenticity as an electronic report endorsed with a digital signature can stand up in court similarly just as some other signed paper record. Fifth advantage to be considered is tracking as a digitally marked or signed document can undoubtedly be located and followed in a short measure of time. (Genie, 2017)
The first and main disadvantage of a digital signature is that it is profoundly reliant upon the technology used to make it. in the event that the technology propels, as it does rapidly, digital signatures need to change similarly as fast or lose their usefulness. The second is verification software also have to be purchased by users. Third one implies that it requires a great deal of time to authenticate as the check cycle incorporates convoluted remaining portion administrators. It requires a ton of time for calculation. Fourth one refers to the data in Digital Signature Algorithm is not encrypted. Only authentication of data can be done in it. The digital signature calculation first and foremost processes with SHA1 hash and signs it. Any downsides in the cryptographic security of SHA1 are reflected in DSA in light of the fact that verifiably of DSA is subject to it. Last one is the compatibility as there are a wide range of digital signature principles and a large portion of them are incongruent with one another and this confounds the sharing of digitally marked documents. (Pedamkar, n.d.)


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