!!! Overview
[Encryption] is a two-way street. You can [Encrypt|Encryption] a [Message] and then you can [Decrypt|Decryption] the [Message].

[Encryption] provides [Confidentiality] of the [Message] but provides no [Integrity] of the [Message].

[Hashing], well at least [Secure Hash Algorithms], is a one-way street. You can [Hash] the [Message] but you can not un-Hash the [Message].

[Hashing] provides [Integrity] of a [Message] but provides no [Confidentiality].

When you require [Confidentiality] and [Integrity], you must use both [Encryption] and [Hashing].

If you need [Non-Repudiation], then you need to [TODO]


!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [Guidelines for building an encryption and hashing policy - part 2|http://www.teusink.eu/2015/06/guidelines-encryption-hashing-policy-part-2.html|target='_blank'] - based on data observed:2015-06-29