dotcloud/docker — pull request #4297 by samalba (2014-02-24 02:36:55+00:00)
Title: registry: Added simple checksums (sha256) for layers

This adds a simple checksums to when pushing each layer. Both checksums (tarsum and simple) are now pushed.

This will allow the registry to check only simple the checksum (much faster on push) while the Index will keep storing the tarsum for security. The Registry won't store the simple checksum, it will use it only to validate the transfer.