Class: RbNaCl::HMAC::SHA256

Inherits:

Auth

• Object
• Auth
• RbNaCl::HMAC::SHA256

Extended by:

Sodium

Defined in:

lib/rbnacl/hmac/sha256.rb

Overview

Computes an authenticator as HMAC-SHA-256

The authenticator can be used at a later time to verify the provenance of the message by recomputing the HMAC over the message and then comparing it to the provided authenticator. The class provides methods for generating signatures and also has a constant-time implementation for checking them.

This is a secret key authenticator, i.e. anyone who can verify signatures can also create them.

See Also:

• http://nacl.cr.yp.to/auth.html

Constant Summary

Constants inherited from Auth

Auth::BYTES, Auth::KEYBYTES

Method Summary

Methods included from Sodium

primitive, sodium_constant, sodium_function, sodium_primitive, sodium_type

Methods inherited from Auth

#auth, auth, #initialize, #key_bytes, key_bytes, #primitive, tag_bytes, #tag_bytes, verify, #verify

Constructor Details

This class inherits a constructor from RbNaCl::Auth