Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
The following are both SHA256 hashes of an empty string, generated with PHP’s crypt function.
$5$fooooooooooooooo$Y6IVN.cYkABQ4h8dCR0zL/rJoRx09pwMoGaYST9HqDD
$5$baaaaaaaaaaaaaar$C84IKQdPMG8qvnnckGZsyBJWKHuaSD0tqcmyueHI0GA
Each was generated with a different 16 bytes of salt present in the hash.
Is there a way to merely test that they are hashes of the same thing, without knowing what that thing was?
No. The strings become completely unique once the salts are added, and there is no way of reversing a hashed string.