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Google Authenticator is a software app that generates one-time passwords for multi-factor authentication. It uses a shared secret key provided by the service provider and a time-based or counter-based algorithm to calculate the password.
A generalisation of the Lehmer generator and historically the most influential and studied generator. Lagged Fibonacci generator (LFG) 1958 G. J. Mitchell and D. P. Moore [5] Linear-feedback shift register (LFSR) 1965 R. C. Tausworthe [6] A hugely influential design. Also called Tausworthe generators. Wichmann–Hill generator: 1982
A hardware random number generator (HRNG) is a device that generates random numbers from a physical process capable of producing entropy. Learn about the history, uses, and types of HRNGs, and how they differ from pseudorandom number generators (PRNGs).
A CSPRNG is a PRNG with properties that make it suitable for use in cryptography. It can stretch the available entropy over more bits and resist state compromise attacks. Learn about its background, definitions and designs based on cryptographic primitives or mathematical problems.
Learn how to generate strong and secure passwords using software, hardware, or manual methods. Compare different sources of randomness, password types, and entropy calculations.
Learn about the process and methods of generating random numbers or symbols that cannot be reasonably predicted better than by random chance. Compare true random number generators (RNGs) and pseudorandom number generators (PRNGs) and their applications in various fields.
This might help explain how a random number generator later shown to be inferior to the alternatives (in addition to the back door) made it into the NIST SP 800-90A standard. The potential for a backdoor in Dual_EC_DRBG had already been documented by Dan Shumow and Niels Ferguson in 2007, [ 10 ] but continued to be used in practice by companies ...
Random.org generates random numbers based on atmospheric noise and offers free and paid services to simulate events such as flipping coins, shuffling cards, and rolling dice. It also provides tools to create lists of random numbers in a specified range and subject to a specified probability distribution.