Moving from md5 towards a more secure hashing technique
If you have an old website or a web application with some user-base and you have encrypted user passwords with md5, sha1, sha256, etc. With the knowledge about md5 or that, old hashing techniques been compromised with brute force attacks, collision attacks, etc., you are searching for a way to convert your hashing technique to something more secure like bcrypt or crypt_blowfish. This article talks about how to do that.
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