diff options
Diffstat (limited to 'Zotlabs/Lib/JcsEddsa2022.php')
| -rw-r--r-- | Zotlabs/Lib/JcsEddsa2022.php | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/Zotlabs/Lib/JcsEddsa2022.php b/Zotlabs/Lib/JcsEddsa2022.php index 14f16c94b..c56f093af 100644 --- a/Zotlabs/Lib/JcsEddsa2022.php +++ b/Zotlabs/Lib/JcsEddsa2022.php @@ -7,11 +7,28 @@ use StephenHill\Base58; class JcsEddsa2022 { - public function __construct() { - return $this; - } - + /** + * Sign arbitrary data with the keys of the provided channel. + * + * @param $data The data to be signed. + * @param array $channel A channel as an array of key/value pairs. + * + * @return An array with the following fields: + * - `type`: The type of signature, always `DataIntegrityProof`. + * - `cryptosuite`: The cryptographic algorithm used, always `eddsa-jcs-2022`. + * - `created`: The UTC date and timestamp when the signature was created. + * - `verificationMethod`: The channel URL and the public key separated by a `#`. + * - `proofPurpose`: The purpose of the signature, always `assertionMethod`. + * - `proofValue`: The signature itself. + * + * @throws JcsEddsa2022SignatureException if the channel is missing, or + * don't have valid keys. + */ public function sign($data, $channel): array { + if (!is_array($channel) || !isset($channel['channel_epubkey'], $channel['channel_eprvkey'])) { + throw new JcsEddsa2022SignException('Invalid or missing channel provided.'); + } + $base58 = new Base58(); $pubkey = (new Multibase())->publicKey($channel['channel_epubkey']); $options = [ |