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2. ### One-time password - Wikipedia

Using a mathematical algorithm to generate a new password based on the previous password (OTPs are effectively a chain and must be used in a predefined order). Using a mathematical algorithm where the new password is based on a challenge (e.g., a random number chosen by the authentication server or transaction details) and/or a counter.

3. ### Backtracking - Wikipedia

en.wikipedia.org/wiki/Backtracking

Backtracking is a class of algorithm for finding solutions to some computational problems, notably constraint satisfaction problems, that incrementally builds candidates to the solutions, and abandons a candidate ("backtracks") as soon as it determines that the candidate cannot possibly be completed to a valid solution.

4. ### Random number generation - Wikipedia

en.wikipedia.org/wiki/Random_number_generation

Random number generation is a process by which, often by means of a random number generator (RNG), a sequence of numbers or symbols that cannot be reasonably predicted better than by random chance is generated. This means that the particular outcome sequence will contain some patterns detectable in hindsight but unpredictable to foresight.

5. ### Bitwarden - Wikipedia

en.wikipedia.org/wiki/Bitwarden

Bitwarden is a free/freemium open-source password management service that stores sensitive information such as website credentials in an encrypted vault. The platform offers a variety of client applications including a web interface, desktop applications, browser extensions, mobile apps, and a command-line interface.

6. ### Security token - Wikipedia

en.wikipedia.org/wiki/Security_token

Synchronous dynamic password token A timer is used to rotate through various combinations produced by a cryptographic algorithm. The token and the authentication server must have synchronized clocks. Asynchronous password token A one-time password is generated without the use of a clock, either from a one-time pad or cryptographic algorithm.

7. ### Cryptographic hash function - Wikipedia

en.wikipedia.org/wiki/Cryptographic_hash_function

The salt randomizes the output of the password hash, making it impossible for an adversary to store tables of passwords and precomputed hash values to which the password hash digest can be compared. The output of a password hash function can also be used as a cryptographic key.

8. ### Negation - Wikipedia

en.wikipedia.org/wiki/Negation

The notation Np is Łukasiewicz notation.. In set theory, is also used to indicate 'not in the set of': is the set of all members of U that are not members of A.. Regardless how it is notated or symbolized, the negation can be read as "it is not the case that P", "not that P", or usually more simply as "not P".

9. ### Bar mitzvah attack - Wikipedia

en.wikipedia.org/wiki/Bar_mitzvah_attack

The bar mitzvah attack is an attack on the SSL/TLS protocols that exploits the use of the RC4 cipher with weak keys for that cipher. While this affects only the first hundred or so bytes of only the very small fraction of connections that happen to use weak keys, it allows significant compromise of user security, for example by allowing the interception of password information which could then ...