Add blake2b to wasm bindings

bindings/wasm/docs/api-reference.md

@@ -148,7 +148,7 @@
         * [.transactionURL(message_id)](#Client+transactionURL) ⇒ <code>string</code>
         * [.publishDocument(document)](#Client+publishDocument) ⇒ <code>Promise.&lt;any&gt;</code>
         * [.publishDiff(message_id, value)](#Client+publishDiff) ⇒ <code>Promise.&lt;any&gt;</code>
-        * [.readDocument(did)](#Client+readDocument) ⇒ <code>Promise.&lt;any&gt;</code>
+        * [.resolve(did)](#Client+resolve) ⇒ <code>Promise.&lt;any&gt;</code>
         * [.checkCredential(data)](#Client+checkCredential) ⇒ <code>Promise.&lt;any&gt;</code>
         * [.checkPresentation(data)](#Client+checkPresentation) ⇒ <code>Promise.&lt;any&gt;</code>
     * _static_
@@ -212,9 +212,9 @@ Publishes a `DocumentDiff` to the Tangle.
 | message_id | <code>string</code> |
 | value | <code>any</code> |
 
-<a name="Client+readDocument"></a>
+<a name="Client+resolve"></a>
 
-### client.readDocument(did) ⇒ <code>Promise.&lt;any&gt;</code>
+### client.resolve(did) ⇒ <code>Promise.&lt;any&gt;</code>
 **Kind**: instance method of [<code>Client</code>](#Client)
 
 | Param | Type |

bindings/wasm/src/crypto/digest.rs

@@ -7,6 +7,7 @@ use wasm_bindgen::prelude::*;
 #[derive(Clone, Copy, Debug)]
 pub enum Digest {
   Sha256 = 1,
+  Blake2b256 = 2,
 }
 
 impl Default for Digest {

bindings/wasm/src/crypto/key_collection.rs

@@ -3,6 +3,7 @@
 
 use identity::core::decode_b58;
 use identity::core::encode_b58;
+use identity::crypto::merkle_key::Blake2b256;
 use identity::crypto::merkle_key::Sha256;
 use identity::crypto::merkle_tree::Proof;
 use identity::crypto::KeyCollection as KeyCollection_;
@@ -77,6 +78,7 @@ impl KeyCollection {
   pub fn merkle_root(&self, digest: Digest) -> String {
     match digest {
       Digest::Sha256 => encode_b58(self.0.merkle_root::<Sha256>().as_slice()),
+      Digest::Blake2b256 => encode_b58(self.0.merkle_root::<Blake2b256>().as_slice()),
     }
   }
 
@@ -89,6 +91,14 @@ impl KeyCollection {
           None => return None,
         };
 
+        Some(encode_b58(&proof.encode()))
+      }
+      Digest::Blake2b256 => {
+        let proof: Proof<Blake2b256> = match self.0.merkle_proof(index) {
+          Some(proof) => proof,
+          None => return None,
+        };
+
         Some(encode_b58(&proof.encode()))
       }
     }

bindings/wasm/src/wasm_verification_method.rs

@@ -1,7 +1,9 @@
 // Copyright 2020-2021 IOTA Stiftung
 // SPDX-License-Identifier: Apache-2.0
 
+use identity::crypto::merkle_key::Blake2b256;
 use identity::crypto::merkle_key::Sha256;
+use identity::iota::IotaDID;
 use identity::iota::IotaVerificationMethod;
 use wasm_bindgen::prelude::*;
 
@@ -41,8 +43,14 @@ impl WasmVerificationMethod {
     keys: &KeyCollection,
     tag: Option<String>,
   ) -> Result<WasmVerificationMethod, JsValue> {
+    let did: IotaDID = did.0.clone();
+    let tag: Option<&str> = tag.as_deref();
+
     match digest {
-      Digest::Sha256 => IotaVerificationMethod::create_merkle_key::<Sha256, _>(did.0.clone(), &keys.0, tag.as_deref())
+      Digest::Sha256 => IotaVerificationMethod::create_merkle_key::<Sha256, _>(did, &keys.0, tag)
+        .map_err(err)
+        .map(Self),
+      Digest::Blake2b256 => IotaVerificationMethod::create_merkle_key::<Blake2b256, _>(did, &keys.0, tag)
         .map_err(err)
         .map(Self),
     }