One-way security

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In computer security, one-way security is a means of protecting sensitive computer data, which needs to be verified but not read. The sensitive data (such as a password) is hashed to make a unique, unreadable string of text. This is then compared with a stored hash, which was generated in the same manner. This prevents anyone who might get unauthorised access to the database from obtaining user passwords.

[edit] See also

• Hash function
• Cryptographic hash function