Himitsu

A secret storage manager

himitsu(7) Miscellaneous Information Manual himitsu(7)

himitsu - Himitsu key store

Himitsu is a secret key storage system. Each key is stored as a set of key/value pairs, any of which may be secret.

To initialize a new Himitsu key store, run himitsu-init(1). This will create a new key store, and a new configuration file (see himitsu.ini(5)). To begin servicing user requests, the Himitsu daemon must be running: see himitsud(1).

The hiq(1) command is provided for querying the key store.

Each entry is formatted as a set of key/value pairs. Each key and value is separated by = (the "equal" symbol), e.g. key=value, and each key/value pair is separated with spaces. Keys and values are formatted using shell quoting syntax, such that spaces or other special characters (non-alphanumeric) may appear in keys or values if they are quoted according to shell quoting rules.

Each key may be suffixed with a ! to indicate that the value is secret.

proto=web host=example.org username=jdoe password!="hello world"

This format is used for inserting new keys and for reading keys out of the key store. Applications may read any non-secret keys without permission, but user consent is required to disclose secret keys. If disclosure is not requested, the value (along with the = token) are omitted for secret keys:

proto=web host=example.org username=jdoe password!

A query language is provided for searching through the key store for entries with desirable traits. The syntax is identical to the key format itself, but introduces the "?" suffix, indicating an optional key. A key may also be specified without a value, which requires that the key is present but does not require that it has a specific value (in this case, = is also omitted).

For example, given the following query:

proto=web host username password! comment?

The key store will return all entries with proto=web, a host and username key with any value, a secret password key, and an optional comment key set to any value.

Himitsu does not much care about the format of the keys it stores, but tools which integrate with Himitsu often do care. Various conventions are defined for the format of keys to integrate properly with third-party software. Generally, the proto key defines the protocol in use for a given key, such as proto=web for web passwords or proto=ssh for SSH keys. Third-party software is encouraged to ship with man pages at himitsu-$proto(5) and himitsu-$proto(7) which respectively document the key conventions and usage for that integration. Consult these man pages for further information about utilizing Himitsu integrations.

Such man pages are not included in the Himitsu distribution, but are distributed by third-party software. For instance, to learn about the SSH integration, install "himitsu-ssh" and consult himitsu-ssh(7) for usage details.

himitsu-init(1), himitsud(1), hiq(1), himitsu.ini(5), himitsu-ipc(5), himitsu-prompter(5)

Maintained by Drew DeVault <sir@cmpwn.com>, who is assited by other contributors. Up-to-date source code can be found at https://git.sr.ht/~sircmpwn/himitsu, and bugs/patches can be submitted by email to ~sircmpwn/himitsu-devel@lists.sr.ht.

2022-06-20