webkms-client

A JavaScript WebKMS client library

Spec Reference

W3C CCG Latest Draft

API Reference

Modules

Functions

webkms

WebKMS client for Javascript.

• webkms
  • .KmsClient
    • new exports.KmsClient(options)

webkms.KmsClient

A WebKMS Client used to interface with a KMS.

Kind: instance class of webkms

new exports.KmsClient(options)

Creates a new KmsClient.

Returns: KmsClient - The new instance.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | [options.keystore] | string | The ID of the keystore that must be a URL that refers to the keystore's root storage location; if not given, then a separate capability must be given to each method called on the client instance. | | [options.httpsAgent] | object | An optional node.js https.Agent instance to use when making requests. |

webkms:generateKey(options) ⇒ Promise.<object>

Generates a new cryptographic key in the keystore.

Kind: global function
Returns: Promise.<object> - The key description for the key.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.kmsModule | string | The KMS module to use. | | options.type | string | The key type (e.g. 'AesKeyWrappingKey2019'). | | [options.capability] | string | The OCAP-LD authorization capability to use to authorize the invocation of this operation. | | options.invocationSigner | object | An API with an id property and a sign function for signing a capability invocation. |

webkms:getKeyDescription(options) ⇒ Promise.<object>

Gets the key description for the given key ID.

Kind: global function
Returns: Promise.<object> - The key description.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | [options.keyId] | string | The ID of the key. | | [options.capability] | string | The OCAP-LD authorization capability to use to authorize the invocation of this operation. | | options.invocationSigner | object | An API with an id property and a sign function for signing a capability invocation. |

webkms:revokeCapability(options) ⇒ Promise.<object>

Store a capability revocation.

Kind: global function
Returns: Promise.<object> - Resolves once the operation completes.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.capabilityToRevoke | object | The capability to enable. | | [options.capability] | string | The zcap authorization capability to use to authorize the invocation of this operation. | | options.invocationSigner | object | An API with an id property and a sign function for signing a capability invocation. |

webkms:wrapKey(options) ⇒ Promise.<string>

Wraps a cryptographic key using a key encryption key (KEK).

Kind: global function
Returns: Promise.<string> - The base64url-encoded wrapped key bytes.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.kekId | string | The ID of the wrapping key to use. | | options.unwrappedKey | Uint8Array | The unwrapped key material as a Uint8Array. | | [options.capability] | string | The OCAP-LD authorization capability to use to authorize the invocation of this operation. | | options.invocationSigner | object | An API with an id property and a sign function for signing a capability invocation. |

webkms:unwrapKey(options) ⇒ Promise.<(Uint8Array|null)>

Unwraps a cryptographic key using a key encryption key (KEK).

Kind: global function
Returns: Promise.<(Uint8Array|null)> - Resolves to the unwrapped key material or null if the unwrapping failed because the key did not match.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.kekId | string | The ID of the unwrapping key to use. | | options.wrappedKey | string | The wrapped key material as a base64url-encoded string. | | [options.capability] | string | The OCAP-LD authorization capability to use to authorize the invocation of this operation. | | options.invocationSigner | object | An API with an id property and a sign function for signing a capability invocation. |

webkms:sign(options) ⇒ Promise.<string>

Signs some data. Note that the data will be sent to the server, so if this data is intended to be secret it should be hashed first. However, hashing the data first may present interoperability issues so choose wisely.

Kind: global function
Returns: Promise.<string> - The base64url-encoded signature.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.keyId | string | The ID of the signing key to use. | | options.data | Uint8Array | The data to sign as a Uint8Array. | | [options.capability] | string | The OCAP-LD authorization capability to use to authorize the invocation of this operation. | | options.invocationSigner | object | An API with an id property and a sign function for signing a capability invocation. |

webkms:verify(options) ⇒ Promise.<boolean>

Verifies some data. Note that the data will be sent to the server, so if this data is intended to be secret it should be hashed first. However, hashing the data first may present interoperability issues so choose wisely.

Kind: global function
Returns: Promise.<boolean> - true if verified, false if not.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.keyId | string | The ID of the signing key to use. | | options.data | Uint8Array | The data to verify as a Uint8Array. | | options.signature | string | The base64url-encoded signature to verify. | | [options.capability] | string | The OCAP-LD authorization capability to use to authorize the invocation of this operation. | | options.invocationSigner | object | An API with an id property and a sign function for signing a capability invocation. |

webkms:deriveSecret(options) ⇒ Promise.<Uint8Array>

Derives a shared secret via the given peer public key, typically for use as one parameter for computing a shared key. It should not be used as a shared key itself, but rather input into a key derivation function (KDF) to produce a shared key.

Kind: global function
Returns: Promise.<Uint8Array> - The shared secret bytes.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.keyId | string | The ID of the key agreement key to use. | | options.publicKey | object | The public key to compute the shared secret against; the public key type must match the key agreement key's type. | | [options.capability] | string | The OCAP-LD authorization capability to use to authorize the invocation of this operation. | | options.invocationSigner | object | An API with an id property and a sign function for signing a capability invocation. |

webkms:enableCapability(options) ⇒ Promise.<object>

Stores a delegated authorization capability, enabling it to be invoked by its designated invoker.

Kind: global function
Returns: Promise.<object> - Resolves once the operation completes.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.capabilityToEnable | object | The capability to enable. | | [options.capability] | string | The OCAP-LD authorization capability to use to authorize the invocation of this operation. | | options.invocationSigner | object | An API with an id property and a sign function for signing a capability invocation. |

webkms:disableCapability(options) ⇒ Promise.<boolean>

Removes a previously stored delegated authorization capability, preventing it from being invoked by its designated invoker.

Kind: global function
Returns: Promise.<boolean> - Resolves to true if the document was deleted and false if it did not exist.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.id | object | The ID of the capability to revoke. | | [options.capability] | string | The OCAP-LD authorization capability to use to authorize the invocation of this operation. | | options.invocationSigner | object | An API with an id property and a sign function for signing a capability invocation. |

webkms:createKeystore(options) ⇒ Promise.<object>

Creates a new keystore using the given configuration.

Kind: global function
Returns: Promise.<object> - Resolves to the configuration for the newly created keystore.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.url | string | The url to post the configuration to. | | options.config | string | The keystore's configuration. | | [options.httpsAgent] | object | An optional node.js https.Agent instance to use when making requests. |

webkms:getKeystore(options) ⇒ Promise.<object>

Gets the configuration for a keystore by its ID.

Kind: global function
Returns: Promise.<object> - Resolves to the configuration for the keystore.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | options.id | string | The keystore's ID. | | [options.httpsAgent] | object | An optional node.js https.Agent instance to use when making requests. |

webkms:findKeystore(options) ⇒ Promise.<object>

Finds the configuration for a keystore by its controller and reference ID.

Kind: global function
Returns: Promise.<object> - Resolves to the configuration for the keystore.

| Param | Type | Description | | --- | --- | --- | | options | object | The options to use. | | [options.url] | string | The url to query. | | options.controller | string | The keystore's controller. | | options.referenceId | string | The keystore's reference ID. | | [options.httpsAgent] | object | An optional node.js https.Agent instance to use when making requests. |