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                                              BLACKBERRY Z10  :: The  Dynamic View                                                                                              Design Size Height 130 mm / 5.11 in Width 65.6 mm / 2.58 in Depth 9 mm / 0.35 in Weight 136g / 4.80 oz Navigation All-touch screen, with intuitive gesture based navigation  Keyboard On screen BlackBerry Keyboard (portrait/landscape), featuring contextual auto-correction, next-word prediction, and a personalized learning engine that gets to know the way you type  Dedicated keys Volume Up/Down, Mute, Lock (for Power On/Off)                                           Display Resolution 1280 x 768 resolution, at 356 PPI 24-bit color depth Screen size 4.2" diagonal 15:9 aspect ratio                              OS & desktop software Operating system BlackBerry 10 OS Desktop so

Cryptography is the art and science of keeping data secure. Cryptographic services help ensure data privacy, maintain data integrity, authenticate communicating parties, and prevent repudiation (when a party refutes having sent a message). Basic encryption allows you to store information or to communicate with other parties while preventing non-involved parties from understanding the stored information or understanding the communication. Encryption transforms understandable text (plaintext) into an unintelligible piece of data (ciphertext). Decryption restores the understandable text from the unintelligible data. Both functions involve a mathematical formula (the algorithm) and secret data (the key). Cryptographic algorithms There are two types of cryptographic algorithms: 1.      With a  secret  or  symmetric  key algorithm, the key is a shared secret between two communicating parties. Encryption and decryption both use the same key. The Data Encryption Standard (DES) and

Biometric identifiers are the distinctive, measurable characteristics used to label and describe individuals . Biometric identifiers are often categorized as physiological versus behavioral characteristics. A physiological biometric would identify by one's voice, DNA, hand print or behavior. Behavioral biometrics are related to the behavior of a person, including but not limited to: TYPING RHYTHM, GAIT, and VOICE Some researchers have coined the term behaviometrics to describe the latter class of biometrics. More traditional means of access control include token-based identification systems, such as a driver's license or passport, and knowledge-based identification systems, such as a password or personal identification number . Since biometric identifiers are unique to individuals, they are more reliable in verifying identity than token and knowledge-based methods; however, the collection of biometric identifiers raises privacy concerns about the ultimate use of