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If the same random seed is deliberately shared, it becomes a secret key, so two or more systems using matching pseudorandom number algorithms and matching seeds can generate matching sequences of non-repeating numbers which can be used to synchronize remote systems, such as GPS satellites and receivers.
A unique random number was assigned to represent each type of piece (six each for black and white) on each space of the board. Thus a table of 64×12 such numbers is initialized at the start of the program. The random numbers could be any length, but 64 bits was natural due to the 64 squares on the board.
Like other sponge functions, Spritz can be used to build a cryptographic hash function, a deterministic random bit generator , an encryption algorithm that supports authenticated encryption with associated data (AEAD), etc. [14] In 2016, Banik and Isobe proposed an attack that can distinguish Spritz from random noise. [64]
The CRAM-MD5 protocol involves a single challenge and response cycle, and is initiated by the server: Challenge: The server sends a base64-encoded string to the client.. Before encoding, it could be any random string, but the standard that currently defines CRAM-MD5 says that it is in the format of a Message-ID email header value (including angle brackets) and includes an arbitrary string of ...
A nonce is an arbitrary number used only once in a cryptographic communication, in the spirit of a nonce word.They are often random or pseudo-random numbers. Many nonces also include a timestamp to ensure exact timeliness, though this requires clock synchronisation between organisations.
As the passwords are stored on the token, users need not remember their passwords and therefore can select more secure passwords, or have more secure passwords assigned. Usually most tokens store a cryptographic hash of the password so that if the token is compromised, the password is still protected. [citation needed]
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