In turn, this key contains the âcypherâ, which dictates how the data encryption occurs. What is a cypher? A cypher is an algorithm for performing encryption and decryption â a series of steps to follow as a procedure. There are many different ways in which plaintext can be encrypted, but essentially there are two main processes used: symmetric key algorithms and asymmetric key algorithms . Algorithms . Symmetric key algorithms
The average price of a barrel of crude oil this year is $69.90. Prior to September 11th, 2001, oil cost $23 per barrel.This pricing difference has been attributed to the increasing difficulty to obtain oil from the Middle Eastern region, as well as the increasing shortage of oil supply throughout the world.he average price of a barrel of crude oil this year is $69.90. Prior to September 11th, 2001, oil cost $23 per barrel.
(GasBuddy) â Hard to believe, but the national average price of gas was more than $1 per gal. higher at the start of 2014 ($3.29) than it was on the last day of the year. On Jan. 1, 2014, WTI crude oil was trading at $98 per barrel and gas below $3 was found in just a handful of states.y Thanksgiving the national average was 44 cents lower than 2013 and by Christmas the national average was 90 cents lower. When OPEC met in Vienna on Thanksgiving Day they surprised many by announcing no cut in production and the price of WTI â$74 the day beforeâ would shed nearly $20 per barrel by. yearâs end.