You may have important files in your computer such as a password manager database, gpg key, bitcoin private keys. There is a risk of loss or modification of these files for multiple possible reason such as hardware failure. If that happen it may have a big impact for you. In this article some simple backup method for Linux will be presented as well as how to automatize them.
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CRC is a very common error detection algorithm for data transmission. It was never designed for cryptography. However it is sometimes used in protocols such as WEP. When used for cryptographic purpose, it can lead to compromising the security of the exchanges. In this article one of possible attack against use of CRC in cryptography will be detailed.
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