types.ts

import { SupportedEncodings } from "uint8arrays/util/bases"

export type Encodings = SupportedEncodings

export interface Keypair {
  publicKey: Uint8Array
  keyType: KeyType
  sign: (msg: Uint8Array) => Promise<Uint8Array>
}

export interface Didable {
  publicKeyStr: (format?: Encodings) => string
  did: () => string
}

export interface ExportableKey {
  export: (format?: Encodings) => Promise<string>
}

export type KeyType = 'rsa' | 'ed25519' | 'bls12-381'

export type Fact = Record<string, string>

export type Capability = {
  [rsc: string]: string
  cap: string
}

export type UcanHeader = {
  alg: string
  typ: string
  ucv: string
}

export type UcanPayload = {
  aud: string
  exp: number
  fct: Array<Fact>
  iss: string
  nbf: number
  prf: string | null
  att: Array<Capability>
  nnc?: string
}

export type Ucan = {
  header: UcanHeader
  payload: UcanPayload
  signature: string | null
}