diff --git a/package.json b/package.json
index 61211590..314e9845 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stellar/wallet-sdk",
-  "version": "0.7.0-rc.0",
+  "version": "0.8.0",
   "description": "Libraries to help you write Stellar-enabled wallets in Javascript",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -67,7 +67,7 @@
     "prettier": "^1.17.0",
     "regenerator-runtime": "^0.13.3",
     "sinon": "^7.3.1",
-    "stellar-sdk": "^9.0.1",
+    "stellar-sdk": "^10.4.0",
     "terser-webpack-plugin": "^2.3.0",
     "ts-loader": "^6.2.1",
     "tsc-watch": "^2.1.2",
diff --git a/src/KeyManagerPlugins.ts b/src/KeyManagerPlugins.ts
index d23ecc08..b9967937 100644
--- a/src/KeyManagerPlugins.ts
+++ b/src/KeyManagerPlugins.ts
@@ -1,9 +1,11 @@
+import { BrowserStorageKeyStore } from "./plugins/BrowserStorageKeyStore";
 import { IdentityEncrypter } from "./plugins/IdentityEncrypter";
 import { LocalStorageKeyStore } from "./plugins/LocalStorageKeyStore";
 import { MemoryKeyStore } from "./plugins/MemoryKeyStore";
 import { ScryptEncrypter } from "./plugins/ScryptEncrypter";
 
 export const KeyManagerPlugins: any = {
+  BrowserStorageKeyStore,
   IdentityEncrypter,
   MemoryKeyStore,
   LocalStorageKeyStore,
diff --git a/src/plugins/BrowserStorageFacade.ts b/src/plugins/BrowserStorageFacade.ts
new file mode 100644
index 00000000..85bde54b
--- /dev/null
+++ b/src/plugins/BrowserStorageFacade.ts
@@ -0,0 +1,92 @@
+import { EncryptedKey } from "../types";
+
+export interface BrowserStorageConfigParams {
+  prefix?: string;
+  storage: {
+    get: (key?: string | string[] | {}) => Promise<{}>;
+    remove: (key: string | string[]) => Promise<void>;
+    set: (items: {}) => Promise<{}>;
+  };
+}
+
+const PREFIX = "stellarkeys";
+
+/**
+ * Facade for `BrowserStorageKeyStore` encapsulating the access to the actual
+ * browser storage
+ */
+export class BrowserStorageFacade {
+  private storage: Storage | null;
+  private prefix: string;
+
+  constructor() {
+    this.storage = null;
+    this.prefix = PREFIX;
+  }
+
+  public configure(params: BrowserStorageConfigParams) {
+    Object.assign(this, params);
+  }
+
+  public async hasKey(id: string) {
+    this.check();
+
+    return this.storage !== null
+      ? !!Object.keys(await this.storage.get(`${this.prefix}:${id}`)).length
+      : null;
+  }
+
+  public async getKey(id: string) {
+    this.check();
+    const key = `${this.prefix}:${id}`;
+    const itemObj = this.storage !== null ? await this.storage.get(key) : null;
+
+    const item = itemObj[key];
+    return item || null;
+  }
+
+  public setKey(id: string, key: EncryptedKey) {
+    this.check();
+    return this.storage !== null
+      ? this.storage.set({ [`${this.prefix}:${id}`]: { ...key } })
+      : null;
+  }
+
+  public removeKey(id: string) {
+    this.check();
+    return this.storage !== null
+      ? this.storage.remove(`${this.prefix}:${id}`)
+      : null;
+  }
+
+  public async getAllKeys() {
+    this.check();
+    const regexp = RegExp(`^${PREFIX}\\:(.*)`);
+    const keys: EncryptedKey[] = [];
+
+    if (this.storage !== null) {
+      const storageObj = await this.storage.get(null);
+      const storageKeys = Object.keys(storageObj);
+      for (const storageKey of storageKeys) {
+        const raw_id = storageKey;
+        if (raw_id !== null && regexp.test(raw_id)) {
+          const key = await this.getKey(regexp.exec(raw_id)![1]);
+          if (key !== null) {
+            keys.push(key);
+          }
+        }
+      }
+    }
+    return keys;
+  }
+
+  private check() {
+    if (this.storage === null) {
+      throw new Error("A storage object must have been set");
+    }
+    if (this.prefix === "") {
+      throw new Error("A non-empty prefix must have been set");
+    }
+    return this.storage !== null && this.prefix !== "";
+  }
+}
diff --git a/src/plugins/BrowserStorageKeyStore.test.ts b/src/plugins/BrowserStorageKeyStore.test.ts
new file mode 100644
index 00000000..d0420c8b
--- /dev/null
+++ b/src/plugins/BrowserStorageKeyStore.test.ts
@@ -0,0 +1,97 @@
+import sinon from "sinon";
+
+import { EncryptedKey } from "../types";
+import { BrowserStorageKeyStore } from "./BrowserStorageKeyStore";
+
+// tslint:disable-next-line
+describe("BrowserStorageKeyStore", function() {
+  let clock: sinon.SinonFakeTimers;
+  let testStore: BrowserStorageKeyStore;
+  const encryptedKey: EncryptedKey = {
+    id: "PURIFIER",
+    encryptedBlob: "BLOB",
+    encrypterName: "Test",
+    salt: "SLFKJSDLKFJLSKDJFLKSJD",
+  };
+  const keyMetadata = {
+    id: "PURIFIER",
+  };
+  const chrome = {
+    storage: {
+      local: {
+        get: (_key?: string | string[] | {}) => Promise.resolve({}),
+        set: (_items: {}) => Promise.resolve({}),
+        remove: (_key: string | string[]) => Promise.resolve(),
+      },
+    },
+  };
+
+  beforeEach(() => {
+    clock = sinon.useFakeTimers(666);
+    testStore = new BrowserStorageKeyStore();
+
+    testStore.configure({ storage: chrome.storage.local });
+  });
+
+  afterEach(() => {
+    clock.restore();
+    sinon.restore();
+  });
+
+  it("properly stores keys", async () => {
+    const chromeStorageLocalGetStub = sinon.stub(chrome.storage.local, "get");
+
+    /* first call returns empty to confirm keystore 
+    doesn't already exist before storing */
+    chromeStorageLocalGetStub.onCall(0).returns(Promise.resolve({}));
+    const testMetadata = await testStore.storeKeys([encryptedKey]);
+
+    expect(testMetadata).toEqual([keyMetadata]);
+
+    // subsequent calls return the keystore as expected
+    chromeStorageLocalGetStub.returns(
+      Promise.resolve({ [`stellarkeys:${encryptedKey.id}`]: encryptedKey }),
+    );
+    const allKeys = await testStore.loadAllKeys();
+
+    expect(allKeys).toEqual([{ ...encryptedKey, ...keyMetadata }]);
+  });
+
+  it("properly deletes keys", async () => {
+    const chromeStorageLocalGetStub = sinon.stub(chrome.storage.local, "get");
+
+    /* first call returns empty to confirm keystore 
+    doesn't already exist before storing */
+    chromeStorageLocalGetStub.onCall(0).returns(Promise.resolve({}));
+    await testStore.storeKeys([encryptedKey]);
+
+    // subsequent calls return the keystore as expected
+    chromeStorageLocalGetStub.returns(
+      Promise.resolve({ [`stellarkeys:${encryptedKey.id}`]: encryptedKey }),
+    );
+
+    const allKeys = await testStore.loadAllKeys();
+
+    expect(allKeys).toEqual([{ ...encryptedKey, ...keyMetadata }]);
+
+    const removalMetadata = await testStore.removeKey("PURIFIER");
+    chromeStorageLocalGetStub.returns(Promise.resolve({}));
+
+    expect(removalMetadata).toEqual(keyMetadata);
+    const noKeys = await testStore.loadAllKeys();
+
+    expect(noKeys).toEqual([]);
+  });
+
+  it("passes PluginTesting", () => {
+    /* 
+    TODO:
+    this test cannot currently be run because we 
+    don't have an adequate way to stub chrome.local.storage yet */
+    // testKeyStore(testStore)
+    // .then(() => {
+    //   done();
+    // })
+    // .catch(done);
+  });
+});
diff --git a/src/plugins/BrowserStorageKeyStore.ts b/src/plugins/BrowserStorageKeyStore.ts
new file mode 100644
index 00000000..210d0e1e
--- /dev/null
+++ b/src/plugins/BrowserStorageKeyStore.ts
@@ -0,0 +1,126 @@
+import { getKeyMetadata } from "../helpers/getKeyMetadata";
+import { EncryptedKey, KeyMetadata, KeyStore } from "../types";
+import {
+  BrowserStorageConfigParams,
+  BrowserStorageFacade,
+} from "./BrowserStorageFacade";
+
+/**
+ * KeyStore for Chrome and Firefox browser storage API:
+ * https://developer.chrome.com/docs/extensions/reference/storage/.
+ * Once instantiated and configured, pass it to the `KeyManager` contructor to
+ * handle the storage of encrypted keys.
+ * ```js
+ * const browserKeyStore = new KeyManagerPlugins.BrowserStorageKeyStore();
+ * browserKeyStore.configure({ storage: chrome.storage.local });
+ * const keyManager = new KeyManager({
+ *     keyStore: browserKeyStore
+ *  });
+ * ```
+ */
+export class BrowserStorageKeyStore implements KeyStore {
+  public name: string;
+  private keyStore: BrowserStorageFacade;
+
+  constructor() {
+    this.name = "BrowserStorageKeyStore";
+    this.keyStore = new BrowserStorageFacade();
+  }
+
+  /**
+   * The configuration is where the storage engine is set up and configured.
+   * It must follow the Storage interface :
+   * https://developer.chrome.com/docs/extensions/reference/storage/).
+   * This is mostly for use with Chrome and Firefox storage in addition to
+   * libraries that shim this (for ex: webextension-polyfill)
+   * @param {BrowserStorageConfigParams} params A configuration object.
+   * @param {Storage} params.storage The Storage instance. Required.
+   * @param {string} [params.prefix] The prefix for the names in the storage.
+   * @return {Promise}
+   */
+  public configure(params: BrowserStorageConfigParams) {
+    try {
+      this.keyStore.configure(params);
+      return Promise.resolve();
+    } catch (e) {
+      return Promise.reject(e);
+    }
+  }
+
+  public async storeKeys(keys: EncryptedKey[]) {
+    // We can't store keys if they're already there
+    const usedKeys: EncryptedKey[] = [];
+
+    for (const encryptedKey of keys) {
+      const hasKey = await this.keyStore.hasKey(encryptedKey.id);
+      if (hasKey) {
+        usedKeys.push(encryptedKey);
+      }
+    }
+
+    if (usedKeys.length) {
+      return Promise.reject(
+        `Some keys were already stored in the keystore: ${usedKeys
+          .map((k) => k.id)
+          .join(", ")}`,
+      );
+    }
+
+    const keysMetadata: KeyMetadata[] = [];
+
+    for (const encryptedKey of keys) {
+      this.keyStore.setKey(encryptedKey.id, encryptedKey);
+      keysMetadata.push(getKeyMetadata(encryptedKey));
+    }
+
+    return Promise.resolve(keysMetadata);
+  }
+
+  public updateKeys(keys: EncryptedKey[]) {
+    // we can't update keys if they're already stored
+    const invalidKeys: EncryptedKey[] = keys.filter(
+      async (encryptedKey: EncryptedKey) =>
+        !(await this.keyStore.hasKey(encryptedKey.id)),
+    );
+
+    if (invalidKeys.length) {
+      return Promise.reject(
+        `Some keys couldn't be found in the keystore: ${invalidKeys
+          .map((k) => k.id)
+          .join(", ")}`,
+      );
+    }
+
+    const keysMetadata = keys.map((encryptedKey: EncryptedKey) => {
+      this.keyStore.setKey(encryptedKey.id, encryptedKey);
+      return getKeyMetadata(encryptedKey);
+    });
+
+    return Promise.resolve(keysMetadata);
+  }
+
+  public async loadKey(id: string) {
+    const key = await this.keyStore.getKey(id);
+    if (!key) {
+      return Promise.reject(id);
+    }
+    return Promise.resolve(key);
+  }
+
+  public async removeKey(id: string) {
+    if (!this.keyStore.hasKey(id)) {
+      return Promise.reject(id);
+    }
+
+    const key = await this.keyStore.getKey(id);
+    const metadata: KeyMetadata = getKeyMetadata(key);
+    this.keyStore.removeKey(id);
+
+    return Promise.resolve(metadata);
+  }
+
+  public async loadAllKeys() {
+    const keys = await this.keyStore.getAllKeys();
+    return Promise.resolve(keys);
+  }
+}
diff --git a/yarn.lock b/yarn.lock
index dc17e3c1..8f6313b0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -899,6 +899,13 @@
   dependencies:
     type-detect "4.0.8"
 
+"@sinonjs/commons@^1.3.0", "@sinonjs/commons@^1.7.0":
+  version "1.8.5"
+  resolved "https://registry.yarnpkg.com/@sinonjs/commons/-/commons-1.8.5.tgz#e280c94c95f206dcfd5aca00a43f2156b758c764"
+  integrity sha512-rTpCA0wG1wUxglBSFdMMY0oTrKYvgf4fNgv/sXbfCVAdf+FnPBdKJR/7XbpTCwbCrvCbdPYnlWaUUYz4V2fPDA==
+  dependencies:
+    type-detect "4.0.8"
+
 "@sinonjs/formatio@^3.1.0", "@sinonjs/formatio@^3.2.1":
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/@sinonjs/formatio/-/formatio-3.2.1.tgz#52310f2f9bcbc67bdac18c94ad4901b95fde267e"
@@ -925,6 +932,15 @@
     array-from "^2.1.1"
     lodash "^4.17.11"
 
+"@sinonjs/samsam@^3.3.3":
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/@sinonjs/samsam/-/samsam-3.3.3.tgz#46682efd9967b259b81136b9f120fd54585feb4a"
+  integrity sha512-bKCMKZvWIjYD0BLGnNrxVuw4dkWCYsLqFOUWw8VgKF/+5Y+mE7LfHWPIYoDXowH+3a9LsWDMo0uAP8YDosPvHQ==
+  dependencies:
+    "@sinonjs/commons" "^1.3.0"
+    array-from "^2.1.1"
+    lodash "^4.17.15"
+
 "@sinonjs/text-encoding@^0.7.1":
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz#8da5c6530915653f3a1f38fd5f101d8c3f8079c5"
@@ -983,6 +999,14 @@
   dependencies:
     "@babel/types" "^7.3.0"
 
+"@types/chrome@*":
+  version "0.0.202"
+  resolved "https://registry.yarnpkg.com/@types/chrome/-/chrome-0.0.202.tgz#ecc6747cc797b6b8427cbb5d9723c91dfc8bd3f4"
+  integrity sha512-Oc4daL9sFS+9MToVZPLMBxR7PxsEdod0b8wOY11lRr06GJp43MORvHeDyMD8QzeRGT6HI13oaYAe2PBgvALc4w==
+  dependencies:
+    "@types/filesystem" "*"
+    "@types/har-format" "*"
+
 "@types/events@*":
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/@types/events/-/events-3.0.0.tgz#2862f3f58a9a7f7c3e78d79f130dd4d71c25c2a7"
@@ -993,6 +1017,18 @@
   resolved "https://registry.yarnpkg.com/@types/eventsource/-/eventsource-1.1.2.tgz#079ab4213e844e56f7384aec620e1163dab692b3"
   integrity sha512-4AKWJ6tvEU4fk0770oAK4Z0lQUuSnc5ljHTcYZhQtdP7XMDKKvegGUC6xGD8+4+F+svZKAzlxbKnuGWfgMtgVA==
 
+"@types/filesystem@*":
+  version "0.0.32"
+  resolved "https://registry.yarnpkg.com/@types/filesystem/-/filesystem-0.0.32.tgz#307df7cc084a2293c3c1a31151b178063e0a8edf"
+  integrity sha512-Yuf4jR5YYMR2DVgwuCiP11s0xuVRyPKmz8vo6HBY3CGdeMj8af93CFZX+T82+VD1+UqHOxTq31lO7MI7lepBtQ==
+  dependencies:
+    "@types/filewriter" "*"
+
+"@types/filewriter@*":
+  version "0.0.29"
+  resolved "https://registry.yarnpkg.com/@types/filewriter/-/filewriter-0.0.29.tgz#a48795ecadf957f6c0d10e0c34af86c098fa5bee"
+  integrity sha512-BsPXH/irW0ht0Ji6iw/jJaK8Lj3FJemon2gvEqHKpCdDCeemHa+rI3WBGq5z7cDMZgoLjY40oninGxqk+8NzNQ==
+
 "@types/fs-extra@^5.0.3":
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/@types/fs-extra/-/fs-extra-5.1.0.tgz#2a325ef97901504a3828718c390d34b8426a10a1"
@@ -1016,6 +1052,11 @@
   dependencies:
     handlebars "*"
 
+"@types/har-format@*":
+  version "1.2.9"
+  resolved "https://registry.yarnpkg.com/@types/har-format/-/har-format-1.2.9.tgz#b9b3a9bfc33a078e7d898a00b09662910577f4a4"
+  integrity sha512-rffW6MhQ9yoa75bdNi+rjZBAvu2HhehWJXlhuWXnWdENeuKe82wUgAwxYOb7KRKKmxYN+D/iRKd2NDQMLqlUmg==
+
 "@types/highlight.js@^9.12.3":
   version "9.12.3"
   resolved "https://registry.yarnpkg.com/@types/highlight.js/-/highlight.js-9.12.3.tgz#b672cfaac25cbbc634a0fd92c515f66faa18dbca"
@@ -1100,11 +1141,31 @@
     "@types/glob" "*"
     "@types/node" "*"
 
+"@types/sinon-chrome@^2.2.11":
+  version "2.2.11"
+  resolved "https://registry.yarnpkg.com/@types/sinon-chrome/-/sinon-chrome-2.2.11.tgz#b931fc55dd0e8fbbf9ce603d040f587f40fbe37b"
+  integrity sha512-hmpjlIDwIi8LLYdzZMh9+oj6k4mM7hD3dEC2a5vzYbNvIEIqDLxED8WhfroqLzLHLYV3ni5N1fLOEF0fmaFpqA==
+  dependencies:
+    "@types/chrome" "*"
+    "@types/sinon" "*"
+
+"@types/sinon@*":
+  version "10.0.13"
+  resolved "https://registry.yarnpkg.com/@types/sinon/-/sinon-10.0.13.tgz#60a7a87a70d9372d0b7b38cc03e825f46981fb83"
+  integrity sha512-UVjDqJblVNQYvVNUsj0PuYYw0ELRmgt1Nt5Vk0pT5f16ROGfcKJY8o1HVuMOJOpD727RrGB9EGvoaTQE5tgxZQ==
+  dependencies:
+    "@types/sinonjs__fake-timers" "*"
+
 "@types/sinon@^7.0.11":
   version "7.0.11"
   resolved "https://registry.yarnpkg.com/@types/sinon/-/sinon-7.0.11.tgz#6f28f005a36e779b7db0f1359b9fb9eef72aae88"
   integrity sha512-6ee09Ugx6GyEr0opUIakmxIWFNmqYPjkqa3/BuxCBokA0klsOLPgMD5K4q40lH7/yZVuJVzOfQpd7pipwjngkQ==
 
+"@types/sinonjs__fake-timers@*":
+  version "8.1.2"
+  resolved "https://registry.yarnpkg.com/@types/sinonjs__fake-timers/-/sinonjs__fake-timers-8.1.2.tgz#bf2e02a3dbd4aecaf95942ecd99b7402e03fad5e"
+  integrity sha512-9GcLXF0/v3t80caGs5p2rRfkB+a8VBGLJZVih6CNFkx8IZ994wiKKLSRs9nuFwk1HevWs/1mnUmkApGrSGsShA==
+
 "@types/stack-utils@^1.0.1":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/@types/stack-utils/-/stack-utils-1.0.1.tgz#0a851d3bd96498fa25c33ab7278ed3bd65f06c3e"
@@ -1547,12 +1608,12 @@ aws4@^1.8.0:
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
   integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
 
-axios@0.21.1:
-  version "0.21.1"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.1.tgz#22563481962f4d6bde9a76d516ef0e5d3c09b2b8"
-  integrity sha512-dKQiRHxGD9PPRIUNIWvZhPTPpl1rf/OxTYKsqKUDjBwYylTvV7SjSHJb9ratfyzM6wCdLCOYLzs73qpg5c4iGA==
+axios@0.25.0:
+  version "0.25.0"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.25.0.tgz#349cfbb31331a9b4453190791760a8d35b093e0a"
+  integrity sha512-cD8FOb0tRH3uuEe6+evtAbgJtfxr7ly3fQjYcMcuPlgkwVS9xboaVIpcDV+cYQe+yGykgwZCs1pzjntcGa6l5g==
   dependencies:
-    follow-redirects "^1.10.0"
+    follow-redirects "^1.14.7"
 
 babel-jest@^24.5.0, babel-jest@^24.7.1:
   version "24.7.1"
@@ -2758,12 +2819,10 @@ events@^3.2.0:
   resolved "https://registry.yarnpkg.com/events/-/events-3.2.0.tgz#93b87c18f8efcd4202a461aec4dfc0556b639379"
   integrity sha512-/46HWwbfCX2xTawVfkKLGxMifJYQBWMwY1mjywRtb4c9x8l5NP3KoJtnIOiL1hfdRkIuYhETxQlo62IF8tcnlg==
 
-eventsource@^1.0.7:
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-1.0.7.tgz#8fbc72c93fcd34088090bc0a4e64f4b5cee6d8d0"
-  integrity sha512-4Ln17+vVT0k8aWq+t/bF5arcS3EpT9gYtW66EPacdj/mAFevznsnyoHLPy2BA8gbIQeIHoPsvwmfBftfcG//BQ==
-  dependencies:
-    original "^1.0.0"
+eventsource@^1.1.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-1.1.2.tgz#bc75ae1c60209e7cb1541231980460343eaea7c2"
+  integrity sha512-xAH3zWhgO2/3KIniEKYPr8plNSzlGINOUqYj0m0u7AB81iRw8b/3E73W6AuU+6klLbaSFmZnaETQ2lXPfAydrA==
 
 evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
   version "1.0.3"
@@ -2995,10 +3054,10 @@ fn-name@~2.0.1:
   resolved "https://registry.yarnpkg.com/fn-name/-/fn-name-2.0.1.tgz#5214d7537a4d06a4a301c0cc262feb84188002e7"
   integrity sha1-UhTXU3pNBqSjAcDMJi/rhBiAAuc=
 
-follow-redirects@^1.10.0:
-  version "1.14.1"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.1.tgz#d9114ded0a1cfdd334e164e6662ad02bfd91ff43"
-  integrity sha512-HWqDgT7ZEkqRzBvc2s64vSZ/hfOceEol3ac/7tKwzuvEyWx3/4UegXh5oBOIotkGsObyk3xznnSRVADBgWSQVg==
+follow-redirects@^1.14.7:
+  version "1.15.2"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.15.2.tgz#b460864144ba63f2681096f274c4e57026da2c13"
+  integrity sha512-VQLG33o04KaQ8uYi2tVNbdrWp1QWxNNea+nmIB4EVM28v0hmP17z7aG1+wAkNzVq4KeXTq3221ye5qTJP91JwA==
 
 for-in@^1.0.2:
   version "1.0.2"
@@ -4568,16 +4627,16 @@ lodash.sortby@^4.7.0:
   resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"
   integrity sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=
 
+lodash@^4.16.3, lodash@^4.17.15, lodash@^4.17.21:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
+
 lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.5:
   version "4.17.19"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
   integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
-lodash@^4.17.21:
-  version "4.17.21"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
-  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
-
 log-symbols@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"
@@ -4611,6 +4670,18 @@ lolex@^3.1.0:
   resolved "https://registry.yarnpkg.com/lolex/-/lolex-3.1.0.tgz#1a7feb2fefd75b3e3a7f79f0e110d9476e294434"
   integrity sha512-zFo5MgCJ0rZ7gQg69S4pqBsLURbFw11X68C18OcJjJQbqaXm2NoTrGl1IMM3TIz0/BnN1tIs2tzmmqvCsOMMjw==
 
+lolex@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/lolex/-/lolex-4.2.0.tgz#ddbd7f6213ca1ea5826901ab1222b65d714b3cd7"
+  integrity sha512-gKO5uExCXvSm6zbF562EvM+rd1kQDnB9AZBbiQVzf1ZmdDpxUSvpnAaVOP83N/31mRK8Ml8/VE8DMvsAZQ+7wg==
+
+lolex@^5.0.1:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/lolex/-/lolex-5.1.2.tgz#953694d098ce7c07bc5ed6d0e42bc6c0c6d5a367"
+  integrity sha512-h4hmjAvHTmd+25JSwrtTIuwbKdwg5NzZVRMLn9saij4SZaepCrTCxPr35H/3bjwfMJtN+t3CX8672UIkglz28A==
+  dependencies:
+    "@sinonjs/commons" "^1.7.0"
+
 long@^2.2.3:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/long/-/long-2.4.0.tgz#9fa180bb1d9500cdc29c4156766a1995e1f4524f"
@@ -4951,11 +5022,6 @@ ms@^2.1.1:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
   integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
 
-nan@^2.14.0:
-  version "2.14.0"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
-  integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
-
 nan@^2.9.2:
   version "2.13.2"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
@@ -5013,6 +5079,17 @@ nise@^1.4.10:
     lolex "^2.3.2"
     path-to-regexp "^1.7.0"
 
+nise@^1.5.2:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/nise/-/nise-1.5.3.tgz#9d2cfe37d44f57317766c6e9408a359c5d3ac1f7"
+  integrity sha512-Ymbac/94xeIrMf59REBPOv0thr+CJVFMhrlAkW/gjCIE58BGQdCj0x7KRCb3yz+Ga2Rz3E9XXSvUyyxqqhjQAQ==
+  dependencies:
+    "@sinonjs/formatio" "^3.2.1"
+    "@sinonjs/text-encoding" "^0.7.1"
+    just-extend "^4.0.2"
+    lolex "^5.0.1"
+    path-to-regexp "^1.7.0"
+
 no-case@^2.2.0, no-case@^2.3.2:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/no-case/-/no-case-2.3.2.tgz#60b813396be39b3f1288a4c1ed5d1e7d28b464ac"
@@ -5030,10 +5107,10 @@ node-fetch@2.6.0:
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.0.tgz#e633456386d4aa55863f676a7ab0daa8fdecb0fd"
   integrity sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==
 
-node-gyp-build@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/node-gyp-build/-/node-gyp-build-4.1.0.tgz#3bc3dd7dd4aafecaf64a2e3729e785bc3cdea565"
-  integrity sha512-rGLv++nK20BG8gc0MzzcYe1Nl3p3mtwJ74Q2QD0HTEDKZ6NvOFSelY6s2QBPWIHRR8h7hpad0LiwajfClBJfNg==
+node-gyp-build@^4.3.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/node-gyp-build/-/node-gyp-build-4.5.0.tgz#7a64eefa0b21112f89f58379da128ac177f20e40"
+  integrity sha512-2iGbaQBV+ITgCz76ZEjmhUKAKVf7xfY1sRl4UiKQspfZMH2h06SyhNsnSVy50cwkFQDGLyif6m/6uFXHkOZ6rg==
 
 node-int64@^0.4.0:
   version "0.4.0"
@@ -5281,13 +5358,6 @@ optionator@^0.8.1:
     type-check "~0.3.2"
     wordwrap "~1.0.0"
 
-original@^1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/original/-/original-1.0.2.tgz#e442a61cffe1c5fd20a65f3261c26663b303f25f"
-  integrity sha512-hyBVl6iqqUOJ8FqRe+l/gS8H+kKYjrEndd5Pm1MfBtsEKA038HkkdbAl/72EAXGyonD/PFsvmVG+EvcIpliMBg==
-  dependencies:
-    url-parse "^1.4.3"
-
 os-browserify@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/os-browserify/-/os-browserify-0.3.0.tgz#854373c7f5c2315914fc9bfc6bd8238fdda1ec27"
@@ -5784,11 +5854,6 @@ querystring@0.2.0:
   resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
   integrity sha1-sgmEkgO7Jd+CDadW50cAWHhSFiA=
 
-querystringify@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.1.1.tgz#60e5a5fd64a7f8bfa4d2ab2ed6fdf4c85bad154e"
-  integrity sha512-w7fLxIRCRT7U8Qu53jQnJyPkYZIaR4n5151KMfcJlO/A9397Wxb1amJvROTK6TOnp7PfoAmg/qXiNHI+08jRfA==
-
 randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5, randombytes@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.1.0.tgz#df6f84372f0270dc65cdf6291349ab7a473d4f2a"
@@ -6037,11 +6102,6 @@ require-main-filename@^2.0.0:
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-2.0.0.tgz#d0b329ecc7cc0f61649f62215be69af54aa8989b"
   integrity sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==
 
-requires-port@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
-  integrity sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8=
-
 resolve-cwd@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/resolve-cwd/-/resolve-cwd-2.0.0.tgz#00a9f7387556e27038eae232caa372a6a59b665a"
@@ -6308,6 +6368,28 @@ simple-git@^1.85.0:
   dependencies:
     debug "^4.0.1"
 
+sinon-chrome@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/sinon-chrome/-/sinon-chrome-3.0.1.tgz#9fb14c230fa0959cb280f9f589e9eda8ccfda1d9"
+  integrity sha512-NTEFhyuiWEMnRmIqldUiA2DhKn2EqnZxyEk5Ez5rBXj+Nl54aJ0MEmF4wjltrxecxd8zlNLxyE0HyLabev9JsQ==
+  dependencies:
+    lodash "^4.16.3"
+    sinon "^7.2.3"
+    urijs "^1.18.2"
+
+sinon@^7.2.3:
+  version "7.5.0"
+  resolved "https://registry.yarnpkg.com/sinon/-/sinon-7.5.0.tgz#e9488ea466070ea908fd44a3d6478fd4923c67ec"
+  integrity sha512-AoD0oJWerp0/rY9czP/D6hDTTUYGpObhZjMpd7Cl/A6+j0xBE+ayL/ldfggkBXUs0IkvIiM1ljM8+WkOc5k78Q==
+  dependencies:
+    "@sinonjs/commons" "^1.4.0"
+    "@sinonjs/formatio" "^3.2.1"
+    "@sinonjs/samsam" "^3.3.3"
+    diff "^3.5.0"
+    lolex "^4.2.0"
+    nise "^1.5.2"
+    supports-color "^5.5.0"
+
 sinon@^7.3.1:
   version "7.3.1"
   resolved "https://registry.yarnpkg.com/sinon/-/sinon-7.3.1.tgz#e8276522104e6c08d1cb52a907270b0e316655c4"
@@ -6378,14 +6460,12 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^3.1.0"
 
-sodium-native@^2.3.0:
-  version "2.4.6"
-  resolved "https://registry.yarnpkg.com/sodium-native/-/sodium-native-2.4.6.tgz#8a8173095e8cf4f997de393a2ba106c34870cac2"
-  integrity sha512-Ro9lhTjot8M01nwKLXiqLSmjR7B8o+Wg4HmJUjEShw/q6XPlNMzjPkA1VJKaMH8SO8fJ/sggAKVwreTaFszS2Q==
+sodium-native@^3.3.0:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/sodium-native/-/sodium-native-3.4.1.tgz#44616c07ccecea15195f553af88b3e574b659741"
+  integrity sha512-PaNN/roiFWzVVTL6OqjzYct38NSXewdl2wz8SRB51Br/MLIJPrbM3XexhVWkq7D3UWMysfrhKVf1v1phZq6MeQ==
   dependencies:
-    ini "^1.3.5"
-    nan "^2.14.0"
-    node-gyp-build "^4.1.0"
+    node-gyp-build "^4.3.0"
 
 source-list-map@^2.0.0:
   version "2.0.1"
@@ -6542,10 +6622,10 @@ stealthy-require@^1.1.1:
   resolved "https://registry.yarnpkg.com/stealthy-require/-/stealthy-require-1.1.1.tgz#35b09875b4ff49f26a777e509b3090a3226bf24b"
   integrity sha1-NbCYdbT/SfJqd35QmzCQoyJr8ks=
 
-stellar-base@^6.0.4:
-  version "6.0.4"
-  resolved "https://registry.yarnpkg.com/stellar-base/-/stellar-base-6.0.4.tgz#2b44ef6434e52cbfca103ff9349f16fca806557e"
-  integrity sha512-zYoo4sjeF3mX9L/m/VF5qySpKdmGi+1c8Q58dB+wRNSLZMYssx7cplONuFMZpcCDukSdFNx+8mjyZdPuy7j1tA==
+stellar-base@^8.2.1:
+  version "8.2.1"
+  resolved "https://registry.yarnpkg.com/stellar-base/-/stellar-base-8.2.1.tgz#9d4259760ce61bc232e1045273cb2424a9950cb3"
+  integrity sha512-rtTrAxkKq+ppE88xJSqEt9Lsp9bjpx3n0jn5QdqsWHvuo6EQ4yd1ODZe3P7ueEPyMfillc2BIZEV+p4Y9ndJQA==
   dependencies:
     base32.js "^0.1.0"
     bignumber.js "^4.0.0"
@@ -6553,27 +6633,27 @@ stellar-base@^6.0.4:
     js-xdr "^1.1.3"
     lodash "^4.17.21"
     sha.js "^2.3.6"
-    tweetnacl "^1.0.0"
+    tweetnacl "^1.0.3"
   optionalDependencies:
-    sodium-native "^2.3.0"
+    sodium-native "^3.3.0"
 
-stellar-sdk@^9.0.1:
-  version "9.0.1"
-  resolved "https://registry.yarnpkg.com/stellar-sdk/-/stellar-sdk-9.0.1.tgz#f0d920def0b395c9c240d6e399a1c63b107b3bd1"
-  integrity sha512-hHRlCAjX5NPEXAmUtIu0BU0F7Mm8qtTCldXgb2mXosfHz8o/vu7lYy/08FjEav925TlsS51HSu2MN0+qHnYkjQ==
+stellar-sdk@^10.1.0:
+  version "10.4.0"
+  resolved "https://registry.yarnpkg.com/stellar-sdk/-/stellar-sdk-10.4.0.tgz#9b0a5c2406a7f19d7710da6268c0ccd149698c65"
+  integrity sha512-dx2CuTLaYKEY1b0HMxjsQQ0o+7hrmukT/idO/IH4FsZ8NVMKjbN4xADjzYx3VbNtHNi8MDWRBMWIY8aNR2o4Ew==
   dependencies:
     "@types/eventsource" "^1.1.2"
     "@types/node" ">= 8"
     "@types/randombytes" "^2.0.0"
     "@types/urijs" "^1.19.6"
-    axios "0.21.1"
+    axios "0.25.0"
     bignumber.js "^4.0.0"
     detect-node "^2.0.4"
     es6-promise "^4.2.4"
-    eventsource "^1.0.7"
+    eventsource "^1.1.1"
     lodash "^4.17.21"
     randombytes "^2.1.0"
-    stellar-base "^6.0.4"
+    stellar-base "^8.2.1"
     toml "^2.3.0"
     tslib "^1.10.0"
     urijs "^1.19.1"
@@ -7048,7 +7128,7 @@ tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
   integrity sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=
 
-tweetnacl@^1.0.0, tweetnacl@^1.0.1:
+tweetnacl@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-1.0.1.tgz#2594d42da73cd036bd0d2a54683dd35a6b55ca17"
   integrity sha512-kcoMoKTPYnoeS50tzoqjPY3Uv9axeuuFAZY9M/9zFnhoVvRfxz9K29IMPD7jGmt2c8SW7i3gT9WqDl2+nV7p4A==
@@ -7210,6 +7290,11 @@ uri-js@^4.2.2:
   dependencies:
     punycode "^2.1.0"
 
+urijs@^1.18.2:
+  version "1.19.11"
+  resolved "https://registry.yarnpkg.com/urijs/-/urijs-1.19.11.tgz#204b0d6b605ae80bea54bea39280cdb7c9f923cc"
+  integrity sha512-HXgFDgDommxn5/bIv0cnQZsPhHDA90NPHD6+c/v21U5+Sx5hoP8+dP9IZXBU1gIfvdRfhG8cel9QNPeionfcCQ==
+
 urijs@^1.19.1:
   version "1.19.1"
   resolved "https://registry.yarnpkg.com/urijs/-/urijs-1.19.1.tgz#5b0ff530c0cbde8386f6342235ba5ca6e995d25a"
@@ -7220,14 +7305,6 @@ urix@^0.1.0:
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
   integrity sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=
 
-url-parse@^1.4.3:
-  version "1.4.7"
-  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.4.7.tgz#a8a83535e8c00a316e403a5db4ac1b9b853ae278"
-  integrity sha512-d3uaVyzDB9tQoSXFvuSUNFibTd9zxd2bkVrDRvF5TmvWWQwqE4lgYJ5m+x1DbecWkw+LK4RNl2CU1hHuOKPVlg==
-  dependencies:
-    querystringify "^2.1.1"
-    requires-port "^1.0.0"
-
 url@^0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"