Quantum Cryptography Essay -- Codes Cryptography Symbols Essays

Quantum Cryptography Keeping secrets and passing information that is undetected has long been the goal of cryptographers. Codes have been written and then broken keeping cryptographers in constant search for the unbreakable code. Until recently, that goal seemed unreachable; however, a solution to the once impossible question seems to have surfaced. Quantum cryptography delves down into the world of very small particles, where there are entirely new ways of building ciphers. ("Arrives" 2) Quantum cryptography is a relatively recent discovery in the world of cryptography and is still being tested by the government for distance and practicality. Most recently, researchers at government-owned QinetiQ PLC and Ludwig-Maximilans-University demonstrated a nighttime key exchange using quantum cryptography over 23.4 km between the mountaintops at Zugspitze and Karwendelspitze in Germany (Bains 1). To understand how quantum cryptography works, one must first be familiar with the Heisenberg uncertainty principle. According to Heisenberg, when one tries to measure a quantum particle (a very small particle), the particle is altered in such a way that your measurement cannot be completely accurate. The particle is disturbed and its appearance before the attempted measurement can no longer be determined. ("Arrives" 3). In quantum cryptography, there are four different particles. The particles are identified by their positions: – (horizontal); | (vertical); / (left diagonal); \ (right diagonal). The particles are measured by the receiver with a filter, and predictably, the vertical filter allows vertical particles through, the horizontal filter allows horizontal particles through, and so on. Here, the Heisenberg uncertainty principle thro... ...he key that Bob is using, Alice is free to read any message Bob sends; however, Bob will be at a loss to decipher anything that Alice sends his way. While it is virtually impossible to eavesdrop using quantum cryptography, the system is only as reliable as the sender and the recipient. Works Cited "Special Report: Quantum Cryptography Arrives." PC Magazine. 6 pages. 6 August 2002. Article A90181639 (Infotrac). Bains, Sunny. "Alice and Bob grow apart. (Quantum Cryptography)." Laser Focus World. 2 pages. May 2002. v. 38. i.5. Article A86506297 (Infotrac). "The end of the code war? Quantum cryptography; The uncertainty principle and codes. (Science and Technology)." The Economist (US). 3 pages. 23 June 2001. Article A75710312 (Infotrac). Peterson, Ivars. "Quantum Cheating." Science News. 2 pages. 14 June 1997. v.151i. 24. Article A19524070 (Infotrac).

Creative writing, Gothic

Briskly walking through the mysterious darkness of the menacing forest, grasping tightly my withering frozen hand, my petrified newly wed wife clung on for protection. It was pitch dark on a cold foggy night in the mid days of December. We were in search of somewhere to rest our staggering and lost bodies. My wife and I had been walking for miles through this never ending cursed old forest. Every step we made on the thin and almost transparent layer of snow had a sudden fall and we heard the snap, crackle and crumble of the lanky branches, crisp leaves ND woodlouse infested logs.Winter was killing the forest. The trees were hunched over and their dead beat bark was blistering under the harsh weight of the freezing bitter quilt which strained their aching ancient backs. A tunnel had been formed. It was as if they were frail, vile and disfigured old men with a dozen spindly limbs to wrap around each other for dear life. The barred branches resembled a prison in my eyes. This endless tu nnel was hiding us from the crucial light of the evil eye, the moon. There were gaps in the endless arch so as to let the descending snow slowly all on to the path we were destined to walk.Suddenly as If out of nothingness appeared a red eyed beast at the top of the wretched, steep hill we were attempting to scale. The wolf approached us with her steaming breath and her head low to the ground as if she was ready for the pounce. If we had run she would have reacted with great violence, so we kept our bodies and expressions as lifeless as a china doll. Her eyes were glowing Like a fire replenishing itself; the eyes of a burning demon. Her coat was as grey as the fog that surrounded s, the beast froze corpse still, silent and motionless.Frantically I dropped the limb and clambered up the rest of the steep hill. Was I dreaming? Supernatural or what!! Terribly frightened I ran on. How could this have happened? Sprinting down the other side of the hill where this terrible happening occurr ed, I tripped. It was not the Inconvenient obstacle of a root or a branch that brought me to fall but something else, something Invisible and evil. I plummeted, momentarily seeing the bloody detached leg of my Innocent wife. Falling ND rolling to where the two hills meet, centre of the haunted vale where the water runs deep and fierce.It was where I was to find the rest of my wife's limbless, battered body drained of blood by an evil split. A terror. I will avenge my poor darling wife Margarita's death. Creative writing, Gothic By thwarted Suddenly as if out of nothingness appeared a red eyed beast at the top of the expressions as lifeless as a china doll. Her eyes were glowing like a fire replenishing the deep fog was thickening. It came to the point were we were blind in that we could As the fog drifted on I noticed that we were no longer in the presence of the vicious wolf.

Cultural Profile Black And Asian Cultures - 921 Words

My cultural profile is Black or African-American to pull in the ancestral heritage. Black culture has given more than afros, cool dance moves, and music to the world. Unfortunately, the media and mainstream continue to highlight this with generalizations and stereotypes. Black culture has values, traditions, and unique communication styles that have developed the platform for other cultures, such as, Mexicans and Asian cultures to strive from despite our differences. Understanding my cultural profile has allowed me to proudly identify myself as a Black woman in American. My cultural profile compared to Mexican and Asian cultures share similarities. We all have and still are fighting for equality, respect, and political standpoints that support our cultures beliefs. Even though slavery was abolished the Jim Crow system created a new way to continue racism (Socialtoday). Jim Crow segregated blacks from whites and tried to establish social norms. For example, Black men were not allowed to make eye contact with women (social today). In the 1960s the Civil Right Movement created a whole new identify for Black people across America. Blacks from all over joined together and peacefully fought the system of oppression and racism (social today). We define ourselves as â€Å"Black is Beautiful† ( social today). Prominent leaders like Martin Luther King Jr. and Nelson Mandela took their practices from Gandhi to eliminate the generalization Black people are violent. They displayed theShow MoreRelatedCultural Profile With Mexican And Asian Cultures940 Word s   |  4 Pages My cultural profile is black, or African-American to pull in the ancestral heritage. Black culture has given more than afros’, cool dance moves, and music to the world. Unfortunately, the media and mainstream continue to highlight this with generalizations and stereotypes. 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