The properties of digital signatures
Develop a 12-slide PowerPoint presentation that will explain the properties of digital signatures, the difference between direct and arbitrated digital signatures, explain a suppress replay attack, and advantages and disadvantages of using digital signatures.
• Include diagrams and examples.
• Add appropriate speaker notes to each slide.
• Be sure to include a cover slide and reference slide in APA format in addition to the 12 main slides.
Sample Solution
Digital signatures are used to authenticate and validate documents, such as contracts or emails. They provide an added layer of security that ensures the integrity of the document by verifying its origin and ensuring that its content has not been tampered with (Brown et al., 2018). This is accomplished through a two-step process in which a digital certificate is used to create an encryption key, which is then used to create a digital signature (Goharzadeh & Sluiter 2015).
There are two types of digital signatures: direct and arbitrated. Direct signatures involve only one party, while arbitrated require the presence of an independent third party. In both cases, however, the user must have access to a secure system in order for their identity to be verified (Lazaroiu et al., 2019).
A replay attack occurs when someone attempts to execute a transaction multiple times using the same authentication credentials as previously approved transactions. To protect against this type of attack, digital signatures use timestamping techniques so that each transaction has a unique identifier attached to it which helps prevent it from being repeated (Moore & DeSouza 2018).
The primary advantage offered by using digital signatures is increased security compared with traditional paper based methods due to their ability to detect any unauthorized changes made before or after signing (Mansfield et al., 2020). Additionally, they are also more convenient since they can be quickly sent over the internet without having physical copies exchanged between parties. However there are some drawbacks associated with them such as cost – setting up encrypted systems can be expensive – as well as interoperability issues if both parties do not use compatible software.
In conclusion, digital signatures offer numerous advantages including enhanced security and convenience compared with traditional methods. Although there may be some limitations associated with these solutions they still remain invaluable tools for verifying identity online while protecting against fraudulent activity.
