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  2. Birthday problem - Wikipedia

    en.wikipedia.org/wiki/Birthday_problem

    The birthday problem in this more generic sense applies to hash functions: the expected number of N-bit hashes that can be generated before getting a collision is not 2 N, but rather only 2 N ⁄ 2. This is exploited by birthday attacks on cryptographic hash functions and is the reason why a small number of collisions in a hash table are, for ...

  3. Time formatting and storage bugs - Wikipedia

    en.wikipedia.org/wiki/Time_formatting_and...

    On 5 January 1975, the 12-bit field that had been used for dates in the TOPS-10 operating system for DEC PDP-10 computers overflowed, in a bug known as "DATE75". The field value was calculated by taking the number of years since 1964, multiplying by 12, adding the number of months since January, multiplying by 31, and adding the number of days since the start of the month; putting 2 12 − 1 ...

  4. Birthday attack - Wikipedia

    en.wikipedia.org/wiki/Birthday_attack

    The birthday problem equations do not exactly apply here. For a 50% chance of a collision, Mallory would need to generate approximately 2 ( l / 2 ) + 1 {\displaystyle 2^{(l/2)+1}} hashes, which is twice the number required for a simple collision under the classical birthday problem.

  5. Easy Java Simulations - Wikipedia

    en.wikipedia.org/wiki/Easy_Java_Simulations

    EJSS is written in the Java programming language and the created simulations are in Java or JavaScript. Java Virtual Machines (JVM) are available for many different platforms; a platform for which a JVM is available can run Java programs. Though Java applets were popular before 2014, JavaScript Applets outputs can be run on almost any device ...

  6. List of computer simulation software - Wikipedia

    en.wikipedia.org/wiki/List_of_computer...

    JMAG - simulation software for electric device design and development. Khimera - a chemical kinetics simulation software tool developed by Kintech Lab. Lanner WITNESS - a discrete event simulation platform for modelling processes and experimentation. Lanner L-SIM Server - Java-based simulation engine for simulating BPMN2.0 based process models.

  7. Patch Tuesday - Wikipedia

    en.wikipedia.org/wiki/Patch_Tuesday

    [4] [5] [6] Microsoft formalized Patch Tuesday in October 2003. [1] [7] Patch Tuesday is known within Microsoft also as the "B" release, to distinguish it from the "C" and "D" releases that occur in the third and fourth weeks of the month, respectively. [1] Patch Tuesday occurs on the second Tuesday of each month [8]. Critical security updates ...

  8. Leap year problem - Wikipedia

    en.wikipedia.org/wiki/Leap_year_problem

    The leap year problem (also known as the leap year bug or the leap day bug) is a problem for both digital (computer-related) and non-digital documentation and data storage situations which results from errors in the calculation of which years are leap years, or from manipulating dates without regard to the difference between leap years and common years.

  9. Patch (computing) - Wikipedia

    en.wikipedia.org/wiki/Patch_(computing)

    A patch is data that is intended to be used to modify an existing software resource such as a program or a file, often to fix bugs and security vulnerabilities. [1] [2] A patch may be created to improve functionality, usability, or performance. A patch is typically provided by a vendor for updating the software that they provide.