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If the key is random and is at least as long as the message, the XOR cipher is much more secure than when there is key repetition within a message. [4] When the keystream is generated by a pseudo-random number generator, the result is a stream cipher. With a key that is truly random, the result is a one-time pad, which is unbreakable in theory.
When password-guessing, this method is very fast when used to check all short passwords, but for longer passwords other methods such as the dictionary attack are used because a brute-force search takes too long. Longer passwords, passphrases and keys have more possible values, making them exponentially more difficult to crack than shorter ones ...
The extension can remember logins for websites, fill in website logins automatically, and generate random passwords for new websites. [29] To use browser extensions, the user must have administrative rights on the computer where the browser is installed. This has been a problem with users on a PC assigned by a workplace without admin rights.
In the RSA SecurID authentication scheme, the seed record is the secret key used to generate one-time passwords. Newer versions also feature a USB connector, which allows the token to be used as a smart card-like device for securely storing certificates. [5]
A transaction authentication number (TAN) is used by some online banking services as a form of single use one-time passwords (OTPs) to authorize financial transactions.TANs are a second layer of security above and beyond the traditional single-password authentication.
The Password Game is a 2023 puzzle browser game developed by Neal Agarwal, where the player creates a password that follows increasingly unusual and complicated rules. Based on Agarwal's experience with password policies, [1] the game was developed in two months, releasing on June 27, 2023. It has become a popular online game and recognized in ...
A random seed (or seed state, or just seed) is a number (or vector) used to initialize a pseudorandom number generator. A pseudorandom number generator's number sequence is completely determined by the seed: thus, if a pseudorandom number generator is later reinitialized with the same seed, it will produce the same sequence of numbers.
In computer programming, a bitwise operation operates on a bit string, a bit array or a binary numeral (considered as a bit string) at the level of its individual bits.It is a fast and simple action, basic to the higher-level arithmetic operations and directly supported by the processor.
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