| crypto/hmac | Package hmac implements the Keyed-Hash Message Authentication Code (HMAC) as defined in U.S. Federal Information Processing Standards Publication 198. |
| crypto/sha256 | Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4. |
| encoding/base64 | Package base64 implements base64 encoding as specified by RFC 4648. |
| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| expvar | Package expvar provides a standardized interface to public variables, such as operation counters in servers. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/docker/distribution | Package distribution will define the interfaces for the components of docker distribution. |
| github.com/docker/distribution/configuration | |
| github.com/docker/distribution/context | Package context provides several utilities for working with Go's context in http requests. |
| github.com/docker/distribution/digest | |
| github.com/docker/distribution/manifest | |
| github.com/docker/distribution/notifications | |
| github.com/docker/distribution/registry/api/v2 | Package v2 describes routes, urls and the error codes used in the Docker Registry JSON HTTP API V2. |
| github.com/docker/distribution/registry/auth | Package auth defines a standard interface for request access controllers. |
| github.com/docker/distribution/registry/middleware/registry | |
| github.com/docker/distribution/registry/middleware/repository | |
| github.com/docker/distribution/registry/storage | Package storage contains storage services for use in the registry application. |
| github.com/docker/distribution/registry/storage/cache | Package cache provides facilities to speed up access to the storage backend. |
| github.com/docker/distribution/registry/storage/driver | |
| github.com/docker/distribution/registry/storage/driver/factory | |
| github.com/docker/distribution/registry/storage/driver/middleware | |
| github.com/garyburd/redigo/redis | Package redis is a client for the Redis database. |
| github.com/gorilla/handlers | Package handlers is a collection of handlers (aka "HTTP middleware") for use with Go's net/http package (or any framework supporting http.Handler). |
| github.com/gorilla/mux | Package mux implements a request router and dispatcher. |
| golang.org/x/net/context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| io | Package io provides basic interfaces to I/O primitives. |
| math/rand | Package rand implements pseudo-random number generators suitable for tasks such as simulation, but it should not be used for security-sensitive work. |
| net | Package net provides a portable interface for network I/O, including TCP/IP, UDP, domain name resolution, and Unix domain sockets. |
| net/http | Package http provides HTTP client and server implementations. |
| net/url | Package url parses URLs and implements query escaping. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |