Digital Signature Scheme Based on Factorization
The objective of this study is to discuss an issue in cryptography or computer security. Digital signatures are described as "an analog of handwritten signatures" which are based on "the physically idiosyncratic way of signing one's name. But they can be easily forged." (Grabbe, 1998) The digital signature is "a mathematical method of attaching one's identity to a message" and is held to be more difficult to forge than a handwritten signature." (Grabbe, 1998) Public key cryptography is used for digital signatures and is such that uses two keys: (1) Take an ordinary plain-text message and apply one of the keys to it in an encryption process, and you end up with a scrambled or "encrypted" (or, in the current context, "signed") message; and (2) Apply the other key to the scrambled message in a decryption process, and you end up with the original plain-text message. (Grabbe, 1998)
One of the two keys is a public key and the other is a private key. The work of Goldwasser, Micali and Rivest (1988) report that the idea of "a digital signature first appeared in Diffie and Hellman's seminal paper 'New Direction in Cryptography' in which is it proposed that each users published a 'public key' which would be used for signature validating while "keeping a secret key (used for producing signatures)." (Goldwasser, Micali and Rivest, 1998)
The idea of a digital signature is reported as a replacement for signatures that are handwritten. It is additionally reported that several problems of a technical nature are relative when there is implementation of digital signatures through use of what are known as trap-door functions. However, these complications are addressed and a solution reported gained. It is stated that TMY83 demonstrated how arbitrary or sparse message sets could be handled and how it could be made sure that should a perpetrator view signatures that are previous that the perpetrator is not assisted in the forging of new signatures. (Goldwasser, Micali, and Rivest, 1988)
Lin, Gun and Chen (2009) report that since the first proposal of a digital signature there have been schemes based on discrete logarithms and the factoring problem. Most of those proposed thus far has been proven to lack in security. One stated example is that Harn in 1995 demonstrated that the H-Kiesler scheme can be broken is the individual has the capacity to solve the factorization. (Lin, Gun, and Chen, 2009, paraphrased) In addition, Lin and Hwang demonstrated that if the individual has the capacity to solve the discrete logarithms, that the He-Kiesler scheme can be broken.
I. New Forms of Computer Cryptography and Security
It is related in the work of Al-Saidi (2011) entitled "Signature Identification Scheme Based on Iterated Function Systems" that secure identification is a critical aspect of security. The use of a hash function can be utilized in the construction of a secure digital signature, which is equally complex as the identification scheme. The digital signature scheme can be used in building communication tools, which are effective in nature as well as for ensuring privacy. Al-Saidi (2011) reports that the first proposed method for exchange of public keys was the ZK protocol in digital cash protection on smart cards which is considered to be just as much of a consumer of time than are other methods of authentication however, it is also "harder to crack." (Al-Saidi, 2011)
According to Abdalla and Reyzin (2000) a key-evolving signature scheme is one in which the operation is partitioned into periods with a different secret key for each period. Each secret key is utilized for message signing only during a specific period and for competition of a new secret key when that period has ended. Abdalla and Reyzin (2000) report "The verification algorithm checks not only that a signature is valid, but also that it was generated during a specific time period." This type of scheme is reported as 'forward-secure' if the scheme is not feasible for an "adaptive chosen-message adversary to forge signature for past time periods, even if it discovers the secret key for the current time period." Stated as implications is that past secret keys are unrecoverable from the current one however, in a forward-secure signature scheme it is reported that should the current secret key be comprised the past time period signatures can still be trusted.
II. Components of Digital Signature Scheme
A signature scheme is reported to contain the components as follows:
(1) A security parameter k, which is chosen by the user when he creates his public...
Digital signatures are comprised of a series of algorithms and mathematical constructs that ensure the authenticity and verifiability of a person signing a specific document. The reliance on digital signatures continues to increase as virtual work teams, the development of automated contract management, compliance, financial reporting and advanced workflows in the fields of financial services continues to grow (Keenan, 2005). The intent of this analysis is to define the properties
Digital Technologies An investigation into the effects of DIGITAL TECHNOLOGIES on U.S. PRINTING INDUSTRY US Printing Industry Business Segmentation of Print Market Industry Trends Traditional Printing Digital Technology for Printing Effects of Digital Technology on Printing Industry Graphic Designing Work Flow Redefined Repurposing Strategic Integration Digital Media to Plate Advantages Disadvantages Challenges of Digital printing Industry Comparison of views on Issues Similar conclusions of Research Critical Aspects of Methodology Gaps in Research Previous Studies and Current Research Relatedness with Literature in General Method of Data Collection Ethical Considerations Results and Findings Positive Impacts of Digital
Digital Privacy in an Information Technology Age Information privacy refers to the desire of individuals to control or have some influence over data about themselves. Advances in information technology have raised concerns about information privacy and its impacts (Belanger & Crossler, 2011). There are many definitions for information privacy, but there is little variance in the elements of the definitions, which typically include some form of control over the potential secondary
The technological capabilities of digital television are enormous, and the future of digital television can be seen as being on par with web pages and compact disc technology, all through the television. The broadcasting standard, however, can be traced back to the time when analogous television was first introduced as a viable medium in the time of World War II. It was in 1940 that the NTSC - National
Drawbacks and Solutions in Transitioning from Print Textbook to Digital Textbook The first challenge that this transition may face is the immediate requirement of an inflated budget intended for gadget purchase. Though print textbooks were dismissed as the cheaper option, digital textbooks do also have a considerably expensive budget to purchase and maintain. Furthermore, in cases where students were to fully sponsor themselves in the purchase of such material, division will
Digital Divide Crosses All Borders, Culturally and Geographically, Discuss How the Digital Divide Affects Society in 2014 The global segregation in myriad aspects owes due to deference of information because technology or rather the lack of it is the causation of the term digital divide. The manifestation is observed glaringly in the realms of schools, commercial activities, connectivity with the global elements and so on and so forth. In the following
Our semester plans gives you unlimited, unrestricted access to our entire library of resources —writing tools, guides, example essays, tutorials, class notes, and more.
Get Started Now