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# Study Project on Cryptography and Data Compression free essay help online Environmental Science

Data Encryption Standard, is an adoption with the Federal Information Processing Standard for encrypting unclassified information, is the most well-known cryptographic mechanism in the history. It remains the standard means for securing electronic commerce for many financial institutions around the world. The two most basic terms related to cryptography are Encryption and Decryption. These terms play a crucial role in bringing up this topic, and have been discussed in detail.

The other terms that are crucial related to this topic is Secret Keys and Ciphers (upon which our entire report is based). As said earlier, Encryption and Decryption are the two most basic terms of Cryptography. Here, the secret is to convert the plain text, which is the usual text that we encounter daily, into a Cipher text which on sight looks just like a ordinary plain text but with a secret message hidden which can be only read by the person who knows the secret behind the new text.

The above situation can be termed as Encryption and Decryption. The term Encryption means to convert the plain text into the Cipher text and Decryption means to convert the Cipher text back to plain text. Both Encryption and Decryption are done using a secret key or symmetric key which is usually possessed only by the one who encrypts and by the one who decrypts. Figure 1-1 shows us the basic diagram of the encryption and decryption process. Figure 1-2 shows the conventional encryption which even includes the secret key.

This branch of mathematics is the most important link towards Mathematics and Computer Science. Modular Arithmetic has been used in various encryption techniques and a short detail about is given below.The Euclids theorem is the theorem that can be defined as the basis of Modular Arithmetic. This theorem states “Let a and b be two positive integers where a&gt;b, if b divides a then gcd(a,b)=b . if b does not divide a, then we can find the gcd(a,b) using repeated division as follows. a=bq0+r1,0

## Consider one aspect of the story from the 2007 film Beowulf directed by Robert Zemeckis or consider a character’s development in the film and compare your choice to the same story aspect or character development in the poem.

Consider one aspect of the story from the 2007 film Beowulf directed by Robert Zemeckis or consider a character’s development in the film and compare your choice to the same story aspect or character development in the poem..

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Beowulf has inspired countless works of art from films to board games to cartoons to novels to prequels and sequels.  Consider one aspect of the story from the 2007 film Beowulf directed by Robert Zemeckis or consider a character’s development in the film and compare your choice to the same story aspect or character development in the poem.  Take specific examples from each work that explains how the poem or film treats the story aspect or character’s development.  Rather than simply explaining how the poem and the film differ, your thesis should present and prove how the differences enlighten the reader about Anglo-Saxon values, both pagan and Christian.

Here’s an example:  “The character of Unferth in Robert Zemeckis’ 2007 Beowulf film concretely (meaning we can see it and hear it) explores the mixture of Christian and pagan values found in both the poem and the film, and helps the reader visualize the complications in the text of the poem.”

This thesis would likely talk about Unferth’s curiosity about Christianity in his remarks in the film, the use of Christian symbols in the film in relation to Unferth, and his reference to “the sins of the father,” but also would detail the similarities between the poem and the film from Unferth’s questioning of Beowulf’s heroism to his gift of the family blade Hrunting to help Beowulf in his quest to kill a demon.  The paper would come to some conclusions about what Unferth’s character means in both the poem and the film and how those meanings deviate from, or remain consistent with, one another.

It is possible to do this kind of exploration with any number of the major characters or events.  One could, for example, explore the film’s creation of an alternate myth of multiple characters having a relationship with Grendel’s mother.  A good question to explore in relation to these relationships is the presence of the supernatural and how human characters interact with supernatural forces.  Another great topic would have to do with Hrothgar as the “good king” of the poem and the flawed king of the film.  Beowulf as a character would benefit from a similar treatment.

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