In cryptography, SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function which takes an input and produces a 160-bit (20-byte) hash value known as a message digest - typically rendered as a hexadecimal number, 40 digits long. It was designed by the United States National Security Agency, and is a U.S. Federal Information Processing Standard.
Since 2005 SHA-1 has not been considered secure against well-funded opponents,and since 2010 many organizations have recommended its replacement by SHA-2 or SHA-3.
In 2017 CWI Amsterdam and Google announced they had performed a collision attack against SHA-1, publishing two dissimilar PDF files which produced the same SHA-1 hash.
Your task is to find user's SHA-1 hash from the application and try to solve the hash and login into the application.
Last updated on 2021年07月18日
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