City Pedia Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Hamming code - Wikipedia

    en.wikipedia.org/wiki/Hamming_code

    In mathematical terms, Hamming codes are a class of binary linear code. For each integer r ≥ 2 there is a code-word with block length n = 2r − 1 and message length k = 2r − r − 1. Hence the rate of Hamming codes is R = k / n = 1 − r / (2r − 1), which is the highest possible for codes with minimum distance of three (i.e., the minimal ...

  3. Brute-force attack - Wikipedia

    en.wikipedia.org/wiki/Brute-force_attack

    A brute-force attack is a cryptanalytic attack that can, in theory, be used to attempt to decrypt any encrypted data (except for data encrypted in an information-theoretically secure manner). [ 2] Such an attack might be used when it is not possible to take advantage of other weaknesses in an encryption system (if any exist) that would make the ...

  4. Hamming(7,4) - Wikipedia

    en.wikipedia.org/wiki/Hamming(7,4)

    In coding theory, Hamming (7,4) is a linear error-correcting code that encodes four bits of data into seven bits by adding three parity bits. It is a member of a larger family of Hamming codes, but the term Hamming code often refers to this specific code that Richard W. Hamming introduced in 1950.

  5. Personal unblocking key - Wikipedia

    en.wikipedia.org/wiki/Personal_unblocking_key

    A personal unblocking key ( PUK ), sometimes called personal unblocking code ( PUC ), is used in SIM cards to reset a personal identification number (PIN) that has been lost or forgotten. Most mobile phones offer the feature of PIN protection. After switching on the phone, if the PIN security function is active, the user is required to enter a ...

  6. Create and manage 3rd-party app passwords - AOL Help

    help.aol.com/articles/Create-and-manage-app-password

    Customer care can’t override this process of determining App Password creation eligibility. Sign in to your AOL Account Security page. Click Generate app password or Generate and manage app passwords. Click Get Started. Enter your app's name in the text field. Click Generate password. Use the one-time password to log in to your 3rd party app .

  7. Subsidy Password - Wikipedia

    en.wikipedia.org/wiki/Subsidy_Password

    Subsidy Password. The term, Subsidy Password, is used by Motorola and other handset manufacturers to refer to the 8-digit code (or 16-digit code for phones such as the Motorola K1) unlock code necessary to remove the operator lock (also known as subsidy lock) from cell phones. This code is randomly assigned to individual cell phones by the OEM ...

  8. Phone hacking - Wikipedia

    en.wikipedia.org/wiki/Phone_hacking

    Phone hacking is the practice of exploring a mobile device, often using computer exploits to analyze everything from the lowest memory and CPU levels up to the highest file system and process levels. Modern open source tooling has become fairly sophisticated to be able to "hook" into individual functions within any running app on an unlocked ...

  9. Steane code - Wikipedia

    en.wikipedia.org/wiki/Steane_code

    It is a CSS code (Calderbank-Shor-Steane), using the classical binary [7,4,3] Hamming code to correct for both qubit flip errors (X errors) and phase flip errors (Z errors). The Steane code encodes one logical qubit in 7 physical qubits and is able to correct arbitrary single qubit errors. Its check matrix in standard form is