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PostgreSQL 10 Administration Cookbook - Fourth Edition
book

PostgreSQL 10 Administration Cookbook - Fourth Edition

by Simon Riggs, Gianni Ciolli
May 2018
Intermediate to advanced content levelIntermediate to advanced
576 pages
30h 25m
English
Packt Publishing
Content preview from PostgreSQL 10 Administration Cookbook - Fourth Edition

For really, really, really sensitive data!

For even more sensitive data, you may never want the data to leave the client computer unencrypted. Therefore, you need to encrypt the data before sending it to the database. In that case, PostgreSQL receives already encrypted data, and never sees the unencrypted version. This also means that the only useful indexes you can have are for use in WHERE encrypted_column = encrypted_data and for ensuring uniqueness.

Even these forms can be used only if the encryption algorithm always produces the same ciphertext (output) for the same plaintext (input), which is true only for weaker encryption algorithms. For example, it would be easy to determine the age or sex of a person if the same value is always ...

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Publisher Resources

ISBN: 9781788474924Supplemental Content