Expose some PublicKey methods

src/PublicKey.js

@@ -85,6 +85,26 @@ export default class PublicKey extends Key {
         return new PublicKey(cryptography.PublicKey.fromString(text));
     }
 
+    /**
+     * Parse an ECDSA public key from a string of hexadecimal digits.
+     *
+     * @param {string} text
+     * @returns {PublicKey}
+     */
+    static fromStringECDSA(text) {
+        return new PublicKey(cryptography.PublicKey.fromStringECDSA(text));
+    }
+
+    /**
+     * Parse an ED25519 public key from a string of hexadecimal digits.
+     *
+     * @param {string} text
+     * @returns {PublicKey}
+     */
+    static fromStringED25519(text) {
+        return new PublicKey(cryptography.PublicKey.fromStringED25519(text));
+    }
+
     /**
      * Verify a signature on a message with this public key.
      *

test/unit/PublicKey.js

@@ -1,6 +1,7 @@
 import {
     AccountId,
     PrivateKey,
+    PublicKey,
     TransactionId,
     TransferTransaction,
     Transaction,
@@ -55,4 +56,22 @@ describe("PublicKey", function () {
             }
         }
     });
+
+    it("verify `fromStringECDSA()` works", async function () {
+        const ecdsaStringKey =
+            "302d300706052b8104000a0322000245f219afdfc8e61b9f6879fa7c8a16a94b35471662afa302993d7d9a29564f81";
+        const publicKeyECDSA = PublicKey.fromStringECDSA(ecdsaStringKey);
+
+        expect(publicKeyECDSA.toString()).to.be.equal(ecdsaStringKey);
+    });
+
+    it("verify `fromStringED25519()` works", async function () {
+        const ed25519StringKey =
+            "302a300506032b6570032100bc46c36d8aeb94270064edb8d3d4d5d29446e1bb2f36cc47b2c9b755ef0aac25";
+        const publicKeyED25519 = PublicKey.fromStringED25519(
+            "302a300506032b6570032100bc46c36d8aeb94270064edb8d3d4d5d29446e1bb2f36cc47b2c9b755ef0aac25"
+        );
+
+        expect(publicKeyED25519.toString()).to.be.equal(ed25519StringKey);
+    });
 });