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In cryptography, rekeying refers to the process of changing the session key—the encryption key of an ongoing communication—in order to limit the amount of data encrypted with the same key.
To rekey a lock you have to first remove the lock cylinder from any housing it rests in. The lock cylinder must be disassembled, and the plug removed. Use a plug follower to avoid dropping master-wafers, top pins and springs. The plug has cylindrical chambers spaced according to manufacturer specifications.
The PRIME Alliance has interoperability tests in place, which are carried out by multiple accredited test laboratories. Currently, the tests have been passed by over 40 products. [2] The primary usage of PRIME is in advanced metering infrastructure. According to the PRIME Alliance, more than 5 million meters in 9 countries are deployed. [3]
This is a route-map template for the Key System, a United States interurban railway.. For a key to symbols, see {{railway line legend}}.; For information on using this template, see Template:Routemap.
A primality test is an algorithm for determining whether an input number is prime.Among other fields of mathematics, it is used for cryptography.Unlike integer factorization, primality tests do not generally give prime factors, only stating whether the input number is prime or not.
On 27 June 2007, the day of his resignation as Prime Minister, Tony Blair jokingly remarked during his final Prime Minister's Questions about receiving his P45: [7] [8] I received the following communication by urgent letter yesterday: "Details of employee leaving work: Surname Blair. First name T"— "It actually says 'Mr., Mrs., Miss or other
The first known example of a tumbler lock was found in the ruins of the Palace of Khorsabad built by king Sargon II (721–705 BC.) in Iraq. [1] Basic principles of the pin tumbler lock may date as far back as 2000 BC in Egypt; the lock consisted of a wooden post affixed to the door and a horizontal bolt that slid into the post.
However, it does not contain all the prime numbers, since the terms gcd(n + 1, a n) are always odd and so never equal to 2. 587 is the smallest prime (other than 2) not appearing in the first 10,000 outcomes that are different from 1. Nevertheless, in the same paper it was conjectured to contain all odd primes, even though it is rather inefficient.