![]() ![]() The hash for “password”, for exemple, is “5baa61e4c9b93f3f0682250b6cf8331b7ee68fd8”, and there does not exist a theoretical way to retrieve “password” from there. To give a very quick explanation to beginners, the principle of a hash is to transform a word into another hardly readable, without there being a mathematical way to inverse the transformation. However, the algorithm had been used in an unsecure way, namely without salt. In practice, those were not clear passwords but hashed ones. Many of you are certainly aware of the fact that somebody succeeded in stealing LinkedIn a 6.5 million password SHA-1 file lately. Cet article est également disponible en français. ![]()
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