David Karchmer dkarchmer

## envelope_encryption_kms_boto_pycrypto.md

      
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                Spaider
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                — forked from pmp/envelope_encryption_kms_boto_pycrypto.md
            
              
                Envelope Encryption using AWS KMS, Python Boto, and PyCrypto.
              
          
    If you use Amazon AWS for nearly anything, then you are probably familiar with KMS, the Amazon Key Management Service.
KMS is a service which allows API-level access to cryptographic primitives without the expense and complexity of a full-fledged HSM or CloudHSM implementation. There are trade-offs in that the key material does reside on servers rather than tamper-proof devices, but these risks should be acceptable to a wide range of customers based on the care Amazon has put into the product. You should perform your own diligence on whether KMS is appropriate for your environment. If the security profile is not adequate, you should consider a stronger product such as CloudHSM or managing your own HSM solutions.
The goal here is to provide some introductory code on how to perform envelope encrypt a message using the AWS KMS API.
KMS allows you to encrypt messages of up to 4kb in size directly using the encrypt()/decrypt() API.
To exceed these limitations, you must use a technique called "envelope encryptio

  
## Update-branch.md

      
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                santisbon
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                Deploying from #Git branches adds flexibility. Bring your feature branch up to date with master and deploy it to make sure everything works. If everything looks good the branch can be merged. Otherwise, you can deploy your master branch to return production to its stable state.
              
          
    Updating a feature branch

First we'll update your local master branch. Go to your local project and check out the branch you want to merge into (your local master branch)
$ git checkout master
Fetch the remote, bringing the branches and their commits from the remote repository.
You can use the -p, --prune option to delete any remote-tracking references that no longer exist in the remote. Commits to master will be stored in a local branch, remotes/origin/master.