Encryption

Holmes/Scarpetta Project- The Valley of Fear What discipline was involved? Digital Forensics (cryptology)- The process of encrypting messages and examining digital media forensically to find, analyze, and present facts and opinions. What was the equipment used? The ciphers represent the pages of previous editions of Whitaker's Almanack. The first number represented the page number in the Almanac. The second number, C2, was the column number on the page in the book. The numbers that…

Wason Selection tasks What if there are 4 cards on the table: A, K, 2 and 7. On one side of the card there is a number and on the other a letter. You have to decide which cards to turn in order to determine if the following statement is false: If a card has a vowel on one side, then it has an even number on the other side. This is called the Wason Selection task a famous reasoning puzzle (Dawson, Gilovich, Regan, 2002). The answer to this problem is cards A and 7 instead of the most commonly…

Password strength Password complexity policies are designed to deter brute force attacks by increasing the number of possible passwords. When password complexity policy is enforced, new passwords must meet the following guidelines: • The password does not contain a dictionary word or the account name of the user or company. • The password is at least eight (8) characters long and can be up to 128 characters long. • The password contains characters from three of the following four categories: o…

Decoding the Grimm Brothers "Once Upon a Time" is a very common introduction to a fairy tale. Many fairy tales are well known by people throughout the globe. People may know these tales but they do not actually know what they mean. The Grimm Brothers’ fairy tales contain much symbolism and unique stylistic trends which have the ability to drastically change the meaning of each story that the brothers wrote. Some of these symbolic aspects include childhood innocence, justice and vengeance. A…

Penetration tests assesses the overall security. It is the process of attempting to gain access to resources without knowledge of specific user names, their passwords, or other normal means of access (similar to what an attacker would do). The big different between a penetration tester and an attacker basically is permission. A penetration tester will already have some permissions (such as an normal user account) in place from the owner or managers of the computing resources that are to be…

MD5 is a calculation that is utilized to confirm information trustworthiness through the formation of a 128-piece message process from information input (which might be a message of any length) that is asserted to be as one of a kind to that particular information as a unique mark is to the particular person. Proposed where a vast record must be "compacted" in a safe way before being scrambled with a private key under an open key cryptosystem such as PGP. There are a lot of applications and we…

Users like having the ability to access and use applications at a moment’s notice. This means there will be more passwords and personal identifiable information stored on the phones. Encryption of website and / or an application is helpful for increasing safety. A user should use a secure close network when surfing the internet if possible. When a cell phone user is reaching out via Wi-Fi network it can be unsafe, ex. a free coffee shop…

The Counterfeit Coins Problem is a well-known complex search problem in mathematics as well as in computer science. It can be related to the data structure (such as binary tree) computer program, algorithm, Graph Theory, Therefore researching this problem is meaningful. The Counterfeit Coins problem can be described as given a set of n look-alike Coins containing One Counterfeit which is a bit heavier or lighter than the genuine Coins. The objective is to find the Counterfeit Coins in minimum…

Alan Turing was born June 23rd, 1912. He was the son of Julius Mathison and Ethel Sara Turing. He had an older brother, John Turing. John and Alan did not see their parents much because of their work. Turing was very smart, especially in science. He invented many machines that have helped us get to our point in technology. He saved millions of lives, changing the future forever. Alan Turing has done some major accomplishments in his life. He was not only a mathematician but also a cryptographer…

Steganography, or data hiding is the technique of embedding a message (pay¬load) in a medium (carrier), without causing suspicion about the existence of hidden data in the medium. The perturbations to the medium are carried out in such a manner that there is no perceivable noise component introduced. One way to illustrate the concept of steganography would be to analyze the Sim¬mons’ Prisoners’ problem. Two prisoners are allowed to communicate through a medium via an agent trusted by the warden.…