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  2. S/KEY - Wikipedia

    en.wikipedia.org/wiki/S/KEY

    S/KEY is a one-time password system developed for authentication to Unix-like operating systems, especially from dumb terminals or untrusted public computers on which one does not want to type a long-term password. A user's real password is combined in an offline device with a short set of characters and a decrementing counter to form a single ...

  3. Salt (cryptography) - Wikipedia

    en.wikipedia.org/wiki/Salt_(cryptography)

    The modern shadow password system, in which password hashes and other security data are stored in a non-public file, somewhat mitigates these concerns. However, they remain relevant in multi-server installations which use centralized password management systems to push passwords or password hashes to multiple systems.

  4. Time-based one-time password - Wikipedia

    en.wikipedia.org/wiki/Time-based_One-Time_Password

    Time-based one-time password (TOTP) is a computer algorithm that generates a one-time password (OTP) using the current time as a source of uniqueness. As an extension of the HMAC-based one-time password algorithm (HOTP), it has been adopted as Internet Engineering Task Force (IETF) standard RFC 6238 .

  5. KeePass - Wikipedia

    en.wikipedia.org/wiki/KeePass

    KeePass Password Safe is a free and open-source password manager primarily for Windows. It officially supports macOS and Linux operating systems through the use of Mono . [ 1 ] Additionally, there are several unofficial ports for Windows Phone , Android , iOS , and BlackBerry devices, which normally work with the same copied or shared (remote ...

  6. Zero-knowledge password proof - Wikipedia

    en.wikipedia.org/wiki/Zero-knowledge_password_proof

    A common use of a zero-knowledge password proof is in authentication systems where one party wants to prove its identity to a second party using a password but doesn't want the second party or anybody else to learn anything about the password. For example, apps can validate a password without processing it and a payment app can check the ...

  7. Password - Wikipedia

    en.wikipedia.org/wiki/Password

    The easier a password is for the owner to remember generally means it will be easier for an attacker to guess. [12] However, passwords that are difficult to remember may also reduce the security of a system because (a) users might need to write down or electronically store the password, (b) users will need frequent password resets and (c) users are more likely to re-use the same password ...

  8. Graphical password - Wikipedia

    en.wikipedia.org/wiki/Graphical_password

    A graphical password or graphical user authentication is a form of authentication using images rather than letters, digits, or special characters. The type of images used and the ways, in which users interact with them vary between implementations.

  9. Password manager - Wikipedia

    en.wikipedia.org/wiki/Password_manager

    A password manager is a software program to prevent password fatigue by automatically generating, autofilling and storing passwords. [1] [2] It can do this for local ...