| compress/zlib | Package zlib implements reading and writing of zlib format compressed data, as specified in RFC 1950. |
| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| encoding/gob | Package gob manages streams of gobs - binary values exchanged between an Encoder (transmitter) and a Decoder (receiver). |
| flag | Package flag implements command-line flag parsing. |
| github.com/google/certificate-transparency-go | Package ct holds core types and utilities for Certificate Transparency. |
| github.com/google/certificate-transparency-go/client | Package client is a CT log client implementation and contains types and code for interacting with RFC6962-compliant CT Log instances. |
| github.com/google/certificate-transparency-go/jsonclient | Package jsonclient provides a simple client for fetching and parsing JSON CT structures from a log. |
| github.com/google/certificate-transparency-go/preload | Package preload holds code for adding batches of certificates to CT logs. |
| github.com/google/certificate-transparency-go/scanner | Package scanner holds code for iterating through the contents of a CT log. |
| io | Package io provides basic interfaces to I/O primitives. |
| io/ioutil | Package ioutil implements some I/O utility functions. |
| log | Package log implements a simple logging package. |
| net/http | Package http provides HTTP client and server implementations. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |