chef

https://github.com/opscode/chef

Ruby

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

Chef::EncryptedDataBagItem::Encryptor::Version2Encryptor#hmac

Generates an HMAC-SHA2-256 of the encrypted data (encrypt-then-mac)

Source | Google | Stack overflow

Edit

git clone [email protected]:opscode/chef.git
cd chef
open lib/chef/encrypted_data_bag_item/encryptor.rb

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-Chef--EncryptedDataBagItem--Encryptor--Version2Encryptor-hmac-for-pr

# Commit to git
git add lib/chef/encrypted_data_bag_item/encryptor.rbgit commit -m "better docs for Chef::EncryptedDataBagItem::Encryptor::Version2Encryptor#hmac"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-Chef--EncryptedDataBagItem--Encryptor--Version2Encryptor-hmac-for-pr
hub pull-request

# Celebrate!