Add support for ReactNative.

.gitignore

@@ -1,3 +1,5 @@
+package-lock.json
+yarn-lock.json
 *.sublime-project
 *.sublime-workspace
 *.sw[nop]

CHANGELOG.md

@@ -1,5 +1,12 @@
 # jsonld-signatures ChangeLog
 
+## 9.3.1 -
+
+### Changed
+- Update `jsonld` (and `rdf-canonize`) dependency, to enable use with React
+  Native.
+- Switch to `@digitalbazaar/security-context` (more compact, no fs dependency).
+
 ## 9.3.0 - 2021-07-10
 
 ### Added

README.md

@@ -1,9 +1,6 @@
-# JSON-LD Signatures _(jsonld-signatures)_
+# JSON-LD Signatures _(@digitalcredentials/jsonld-signatures)_
 
-[![Build status](https://img.shields.io/github/workflow/status/digitalbazaar/jsonld-signatures/Node.js%20CI)](https://github.com/digitalbazaar/jsonld-signatures/actions?query=workflow%3A%22Node.js+CI%22)
-[![Coverage status](https://img.shields.io/codecov/c/github/digitalbazaar/jsonld-signatures)](https://codecov.io/gh/digitalbazaar/jsonld-signatures)
-[![Dependency Status](https://img.shields.io/david/digitalbazaar/jsonld-signatures.svg)](https://david-dm.org/digitalbazaar/jsonld-signatures)
-[![NPM Version](https://img.shields.io/npm/v/jsonld-signatures.svg)](https://npm.im/jsonld-signatures)
+[![NPM Version](https://img.shields.io/npm/v/@digitalcredentials/jsonld-signatures.svg)](https://npm.im/digitalcredentials/jsonld-signatures)
 
 > An implementation of the Linked Data Signatures specification for JSON-LD, for Node.js and browsers.
 
@@ -19,17 +16,20 @@
 
 ## Version Compatibility
 
+(Forked from [`jsonld-signatures` v9.0.0](https://github.com/digitalbazaar/jsonld-signatures)
+to provide TypeScript compatibility.)
+
 `jsonld-signatures` **v9.0** is compatible with the following signature suites:
 
-* [`ed25519-signature-2020`](https://github.com/digitalbazaar/ed25519-signature-2020)
+* [`ed25519-signature-2020`](https://github.com/digitalcredentials/ed25519-signature-2020)
   `>= 2.1.0`.
 
 and the following related libraries:
 
 * `crypto-ld` `>= 5.0.0` (and related key crypto suites such as 
   [`ed25519-verification-key-2020`](https://github.com/digitalbazaar/ed25519-verification-key-2020)
   `>= 2.1.0`).
-* `vc-js` `>= 7.0` (currently, [branch `v7.x`](https://github.com/digitalbazaar/vc-js/pull/83))
+* `@digitalcredentials/vc` `>= 1.0`
 
 ## Background
 
@@ -61,7 +61,7 @@ document.
 One common use case for creating these signatures is for use with 
 [Verifiable Credentials](https://w3c.github.io/vc-data-model) (VCs). If you're 
 working with those, you should use a higher-level library that's specifically
-made for that purpose, such as [`vc-js`](https://github.com/digitalbazaar/vc-js).
+made for that purpose, such as [`@digitalcredentials/vc`](https://github.com/digitalcredentials/vc-js).
 (Incidentally, `vc-js` uses this library, `jsonld-signatures`, under the hood.)
 
 ## Security
@@ -104,7 +104,7 @@ security, or business rules.
 To install locally (for development):
 
 ```
-git clone https://github.com/digitalbazaar/jsonld-signatures.git
+git clone https://github.com/digitalcredentials/jsonld-signatures.git
 cd jsonld-signatures
 npm install
 ```
@@ -115,7 +115,7 @@ npm install
 Instead, it's generally used through an individual _crypto suite_.
 For detailed usage instructions, see the READMEs of the supported suites:
 
-* [`Ed25519Signature2020`](https://github.com/digitalbazaar/ed25519-signature-2020) 
+* [`Ed25519Signature2020`](https://github.com/digitalcredentials/ed25519-signature-2020) 
 * [`Ed25519Signature2018`](https://github.com/digitalbazaar/ed25519-signature-2018)
 
 Most of the usages with individual suites and key types will have elements in
@@ -129,7 +129,7 @@ common. You'll need to:
   them for (see section on Proof Purpose below), using a Controller Document
   (such as a DID Document or similar).
 * Pair those keys with a corresponding cryptographic Signature Suite.
-  For greenfield development, we recommend the [`Ed25519Signature2020`](https://github.com/digitalbazaar/ed25519-signature-2020)
+  For greenfield development, we recommend the [`Ed25519Signature2020`](https://github.com/digitalcredentials/ed25519-signature-2020)
   suite, and for legacy/compatibility work, you can use 
   [`Ed25519Signature2018`](https://github.com/digitalbazaar/ed25519-signature-2018) suite.
   See also the [Choosing a Key Type](https://github.com/digitalbazaar/crypto-ld#choosing-a-key-type)
@@ -153,11 +153,7 @@ PRs accepted.
 If editing the Readme, please conform to the
 [standard-readme](https://github.com/RichardLitt/standard-readme) specification.
 
-## Commercial Support
-
-Commercial support for this library is available upon request from
-Digital Bazaar: [email protected]
-
 ## License
 
-[New BSD License (3-clause)](LICENSE) © Digital Bazaar
+* MIT License - DCC - TypeScript compatibility.
+* New BSD License (3-clause) © 2020-2021 Digital Bazaar - Initial implementation.

lib/ProofSet.js

@@ -4,7 +4,7 @@
 'use strict';
 
 const constants = require('./constants');
-const jsonld = require('jsonld');
+const jsonld = require('@digitalcredentials/jsonld');
 const {extendContextLoader, strictDocumentLoader} = require('./documentLoader');
 const {serializeError} = require('serialize-error');
 const strictExpansionMap = require('./expansionMap');

lib/constants.js

@@ -3,7 +3,9 @@
  */
 'use strict';
 
-const {constants: securityConstants} = require('security-context');
+const {
+  constants: securityConstants
+} = require('@digitalbazaar/security-context');
 
 module.exports = {
   SECURITY_CONTEXT_URL: securityConstants.SECURITY_CONTEXT_V2_URL,

lib/contexts.js

@@ -4,7 +4,7 @@
 'use strict';
 
 const constants = require('./constants');
-const {contexts: securityContexts} = require('security-context');
+const {contexts: securityContexts} = require('@digitalbazaar/security-context');
 
 module.exports = new Map([
   [constants.SECURITY_CONTEXT_V1_URL,

lib/purposes/ControllerProofPurpose.js

@@ -4,7 +4,7 @@
 'use strict';
 
 const constants = require('../constants');
-const jsonld = require('jsonld');
+const jsonld = require('@digitalcredentials/jsonld');
 const ProofPurpose = require('./ProofPurpose');
 
 // DID documents can be specially optimized

lib/sha256digest-reactnative.js

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021 Digital Bazaar, Inc. All rights reserved.
+ */
+'use strict';
+
+const crypto = require('isomorphic-webcrypto');
+require('fast-text-encoding');
+
+module.exports = {
+  /**
+   * Hashes a string of data using SHA-256.
+   *
+   * @param {string} string - the string to hash.
+   *
+   * @return {Uint8Array} the hash digest.
+   */
+  async sha256digest({string}) {
+    const bytes = new TextEncoder().encode(string);
+    return new Uint8Array(
+      await crypto.subtle.digest({name: 'SHA-256'}, bytes)
+    );
+  }
+};

lib/suites/LinkedDataSignature.js

@@ -4,7 +4,7 @@
 'use strict';
 
 const constants = require('../constants');
-const jsonld = require('jsonld');
+const jsonld = require('@digitalcredentials/jsonld');
 const util = require('../util');
 const {sha256digest} = require('../sha256digest');
 const LinkedDataProof = require('./LinkedDataProof');

package.json

@@ -1,26 +1,11 @@
 {
-  "name": "jsonld-signatures",
-  "version": "9.3.1-0",
+  "name": "@digitalcredentials/jsonld-signatures",
+  "version": "9.3.1",
   "description": "An implementation of the Linked Data Signatures specifications for JSON-LD in JavaScript.",
-  "homepage": "https://github.com/digitalbazaar/jsonld-signatures",
-  "author": {
-    "name": "Digital Bazaar, Inc.",
-    "email": "[email protected]",
-    "url": "https://digitalbazaar.com/"
-  },
-  "contributors": [
-    "Dave Longley <[email protected]>",
-    "Manu Sporny <[email protected]>",
-    "David I. Lehn <[email protected]>",
-    "Dmitri Zagidulin <[email protected]>"
-  ],
+  "homepage": "https://github.com/digitalcredentials/jsonld-signatures",
   "repository": {
     "type": "git",
-    "url": "https://github.com/digitalbazaar/jsonld-signatures"
-  },
-  "bugs": {
-    "url": "https://github.com/digitalbazaar/jsonld-signatures/issues",
-    "email": "[email protected]"
+    "url": "https://github.com/digitalcredentials/jsonld-signatures"
   },
   "license": "BSD-3-Clause",
   "main": "lib/jsonld-signatures.js",
@@ -29,8 +14,10 @@
     "lib/**/*.js"
   ],
   "dependencies": {
-    "jsonld": "^5.0.0",
-    "security-context": "^4.0.0",
+    "@digitalbazaar/security-context": "^1.0.0",
+    "@digitalcredentials/jsonld": "^5.2.1",
+    "fast-text-encoding": "^1.0.3",
+    "isomorphic-webcrypto": "^2.3.8",
     "serialize-error": "^8.0.1"
   },
   "devDependencies": {
@@ -79,6 +66,13 @@
   },
   "browser": {
     "crypto": false,
-    "./lib/sha256digest.js": "./lib/sha256digest-browser.js"
+    "./lib/sha256digest.js": "./lib/sha256digest-browser.js",
+    "fast-text-encoding": false,
+    "isomorphic-webcrypto": false
+  },
+  "react-native": {
+    "crypto": false,
+    "./lib/sha256digest.js": "./lib/sha256digest-reactnative.js",
+    "./lib/sha256digest-browser.js": false
   }
 }