diff --git a/lib/services/keyvault/lib/keyVaultClient.d.ts b/lib/services/keyvault/lib/keyVaultClient.d.ts
index a35191f185..2083732d8f 100644
--- a/lib/services/keyvault/lib/keyVaultClient.d.ts
+++ b/lib/services/keyvault/lib/keyVaultClient.d.ts
@@ -70,8 +70,8 @@ export default class KeyVaultClient extends AzureServiceClient {
    *
    * @param {object} [options] Optional Parameters.
    *
-   * @param {number} [options.keySize] The key size in bytes. For example, 1024
-   * or 2048.
+   * @param {number} [options.keySize] The key size in bits. For example: 2048,
+   * 3072, or 4096 for RSA.
    *
    * @param {array} [options.keyOps]
    *
@@ -122,8 +122,8 @@ export default class KeyVaultClient extends AzureServiceClient {
    *
    * @param {object} [options] Optional Parameters.
    *
-   * @param {number} [options.keySize] The key size in bytes. For example, 1024
-   * or 2048.
+   * @param {number} [options.keySize] The key size in bits. For example: 2048,
+   * 3072, or 4096 for RSA.
    *
    * @param {array} [options.keyOps]
    *
@@ -3512,7 +3512,7 @@ export default class KeyVaultClient extends AzureServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
@@ -3624,7 +3624,7 @@ export default class KeyVaultClient extends AzureServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
@@ -3765,7 +3765,7 @@ export default class KeyVaultClient extends AzureServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
@@ -3887,7 +3887,7 @@ export default class KeyVaultClient extends AzureServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
@@ -4161,7 +4161,7 @@ export default class KeyVaultClient extends AzureServiceClient {
    * @param {string} [certificatePolicy.keyProperties.keyType] The key type.
    *
    * @param {number} [certificatePolicy.keyProperties.keySize] The key size in
-   * bytes. For example;  1024 or 2048.
+   * bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if the
    * same key pair will be used on certificate renewal.
@@ -4263,7 +4263,7 @@ export default class KeyVaultClient extends AzureServiceClient {
    * @param {string} [certificatePolicy.keyProperties.keyType] The key type.
    *
    * @param {number} [certificatePolicy.keyProperties.keySize] The key size in
-   * bytes. For example;  1024 or 2048.
+   * bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if the
    * same key pair will be used on certificate renewal.
@@ -4392,7 +4392,7 @@ export default class KeyVaultClient extends AzureServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
@@ -4509,7 +4509,7 @@ export default class KeyVaultClient extends AzureServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
diff --git a/lib/services/keyvault/lib/keyVaultClient.js b/lib/services/keyvault/lib/keyVaultClient.js
index 49a38ce192..a435f4e270 100644
--- a/lib/services/keyvault/lib/keyVaultClient.js
+++ b/lib/services/keyvault/lib/keyVaultClient.js
@@ -42,8 +42,8 @@ const models = require('./models');
  *
  * @param {object} [options] Optional Parameters.
  *
- * @param {number} [options.keySize] The key size in bytes. For example, 1024
- * or 2048.
+ * @param {number} [options.keySize] The key size in bits. For example: 2048,
+ * 3072, or 4096 for RSA.
  *
  * @param {array} [options.keyOps]
  *
@@ -7015,7 +7015,7 @@ function _deleteCertificateIssuer(vaultBaseUrl, issuerName, options, callback) {
  * type.
  *
  * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
- * size in bytes. For example;  1024 or 2048.
+ * size in bits. For example: 2048, 3072, or 4096 for RSA.
  *
  * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
  * Indicates if the same key pair will be used on certificate renewal.
@@ -7296,7 +7296,7 @@ function _createCertificate(vaultBaseUrl, certificateName, options, callback) {
  * type.
  *
  * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
- * size in bytes. For example;  1024 or 2048.
+ * size in bits. For example: 2048, 3072, or 4096 for RSA.
  *
  * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
  * Indicates if the same key pair will be used on certificate renewal.
@@ -7888,7 +7888,7 @@ function _getCertificatePolicy(vaultBaseUrl, certificateName, options, callback)
  * @param {string} [certificatePolicy.keyProperties.keyType] The key type.
  *
  * @param {number} [certificatePolicy.keyProperties.keySize] The key size in
- * bytes. For example;  1024 or 2048.
+ * bits. For example: 2048, 3072, or 4096 for RSA.
  *
  * @param {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if the
  * same key pair will be used on certificate renewal.
@@ -8137,7 +8137,7 @@ function _updateCertificatePolicy(vaultBaseUrl, certificateName, certificatePoli
  * type.
  *
  * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
- * size in bytes. For example;  1024 or 2048.
+ * size in bits. For example: 2048, 3072, or 4096 for RSA.
  *
  * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
  * Indicates if the same key pair will be used on certificate renewal.
@@ -13507,8 +13507,8 @@ class KeyVaultClient extends ServiceClient {
    *
    * @param {object} [options] Optional Parameters.
    *
-   * @param {number} [options.keySize] The key size in bytes. For example, 1024
-   * or 2048.
+   * @param {number} [options.keySize] The key size in bits. For example: 2048,
+   * 3072, or 4096 for RSA.
    *
    * @param {array} [options.keyOps]
    *
@@ -13571,8 +13571,8 @@ class KeyVaultClient extends ServiceClient {
    *
    * @param {object} [options] Optional Parameters.
    *
-   * @param {number} [options.keySize] The key size in bytes. For example, 1024
-   * or 2048.
+   * @param {number} [options.keySize] The key size in bits. For example: 2048,
+   * 3072, or 4096 for RSA.
    *
    * @param {array} [options.keyOps]
    *
@@ -18056,7 +18056,7 @@ class KeyVaultClient extends ServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
@@ -18180,7 +18180,7 @@ class KeyVaultClient extends ServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
@@ -18336,7 +18336,7 @@ class KeyVaultClient extends ServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
@@ -18470,7 +18470,7 @@ class KeyVaultClient extends ServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
@@ -18813,7 +18813,7 @@ class KeyVaultClient extends ServiceClient {
    * @param {string} [certificatePolicy.keyProperties.keyType] The key type.
    *
    * @param {number} [certificatePolicy.keyProperties.keySize] The key size in
-   * bytes. For example;  1024 or 2048.
+   * bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if the
    * same key pair will be used on certificate renewal.
@@ -18927,7 +18927,7 @@ class KeyVaultClient extends ServiceClient {
    * @param {string} [certificatePolicy.keyProperties.keyType] The key type.
    *
    * @param {number} [certificatePolicy.keyProperties.keySize] The key size in
-   * bytes. For example;  1024 or 2048.
+   * bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if the
    * same key pair will be used on certificate renewal.
@@ -19071,7 +19071,7 @@ class KeyVaultClient extends ServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
@@ -19200,7 +19200,7 @@ class KeyVaultClient extends ServiceClient {
    * type.
    *
    * @param {number} [options.certificatePolicy.keyProperties.keySize] The key
-   * size in bytes. For example;  1024 or 2048.
+   * size in bits. For example: 2048, 3072, or 4096 for RSA.
    *
    * @param {boolean} [options.certificatePolicy.keyProperties.reuseKey]
    * Indicates if the same key pair will be used on certificate renewal.
diff --git a/lib/services/keyvault/lib/models/certificateBundle.js b/lib/services/keyvault/lib/models/certificateBundle.js
index 3914d9a439..b5c0a548d6 100644
--- a/lib/services/keyvault/lib/models/certificateBundle.js
+++ b/lib/services/keyvault/lib/models/certificateBundle.js
@@ -30,8 +30,8 @@ class CertificateBundle {
    * @member {boolean} [policy.keyProperties.exportable] Indicates if the
    * private key can be exported.
    * @member {string} [policy.keyProperties.keyType] The key type.
-   * @member {number} [policy.keyProperties.keySize] The key size in bytes. For
-   * example;  1024 or 2048.
+   * @member {number} [policy.keyProperties.keySize] The key size in bits. For
+   * example: 2048, 3072, or 4096 for RSA.
    * @member {boolean} [policy.keyProperties.reuseKey] Indicates if the same
    * key pair will be used on certificate renewal.
    * @member {object} [policy.secretProperties] Properties of the secret
diff --git a/lib/services/keyvault/lib/models/certificateCreateParameters.js b/lib/services/keyvault/lib/models/certificateCreateParameters.js
index b6646ce3bf..3c6ae7ad8f 100644
--- a/lib/services/keyvault/lib/models/certificateCreateParameters.js
+++ b/lib/services/keyvault/lib/models/certificateCreateParameters.js
@@ -28,7 +28,7 @@ class CertificateCreateParameters {
    * if the private key can be exported.
    * @member {string} [certificatePolicy.keyProperties.keyType] The key type.
    * @member {number} [certificatePolicy.keyProperties.keySize] The key size in
-   * bytes. For example;  1024 or 2048.
+   * bits. For example: 2048, 3072, or 4096 for RSA.
    * @member {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if
    * the same key pair will be used on certificate renewal.
    * @member {object} [certificatePolicy.secretProperties] Properties of the
diff --git a/lib/services/keyvault/lib/models/certificateImportParameters.js b/lib/services/keyvault/lib/models/certificateImportParameters.js
index 51111dacd5..a67709fab2 100644
--- a/lib/services/keyvault/lib/models/certificateImportParameters.js
+++ b/lib/services/keyvault/lib/models/certificateImportParameters.js
@@ -33,7 +33,7 @@ class CertificateImportParameters {
    * if the private key can be exported.
    * @member {string} [certificatePolicy.keyProperties.keyType] The key type.
    * @member {number} [certificatePolicy.keyProperties.keySize] The key size in
-   * bytes. For example;  1024 or 2048.
+   * bits. For example: 2048, 3072, or 4096 for RSA.
    * @member {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if
    * the same key pair will be used on certificate renewal.
    * @member {object} [certificatePolicy.secretProperties] Properties of the
diff --git a/lib/services/keyvault/lib/models/certificatePolicy.js b/lib/services/keyvault/lib/models/certificatePolicy.js
index a7febaedeb..65f58e387c 100644
--- a/lib/services/keyvault/lib/models/certificatePolicy.js
+++ b/lib/services/keyvault/lib/models/certificatePolicy.js
@@ -25,8 +25,8 @@ class CertificatePolicy {
    * @member {boolean} [keyProperties.exportable] Indicates if the private key
    * can be exported.
    * @member {string} [keyProperties.keyType] The key type.
-   * @member {number} [keyProperties.keySize] The key size in bytes. For
-   * example;  1024 or 2048.
+   * @member {number} [keyProperties.keySize] The key size in bits. For
+   * example: 2048, 3072, or 4096 for RSA.
    * @member {boolean} [keyProperties.reuseKey] Indicates if the same key pair
    * will be used on certificate renewal.
    * @member {object} [secretProperties] Properties of the secret backing a
diff --git a/lib/services/keyvault/lib/models/certificateUpdateParameters.js b/lib/services/keyvault/lib/models/certificateUpdateParameters.js
index 81111603cf..088322c784 100644
--- a/lib/services/keyvault/lib/models/certificateUpdateParameters.js
+++ b/lib/services/keyvault/lib/models/certificateUpdateParameters.js
@@ -28,7 +28,7 @@ class CertificateUpdateParameters {
    * if the private key can be exported.
    * @member {string} [certificatePolicy.keyProperties.keyType] The key type.
    * @member {number} [certificatePolicy.keyProperties.keySize] The key size in
-   * bytes. For example;  1024 or 2048.
+   * bits. For example: 2048, 3072, or 4096 for RSA.
    * @member {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if
    * the same key pair will be used on certificate renewal.
    * @member {object} [certificatePolicy.secretProperties] Properties of the
diff --git a/lib/services/keyvault/lib/models/index.d.ts b/lib/services/keyvault/lib/models/index.d.ts
index 39302e82cd..b3d6a9887e 100644
--- a/lib/services/keyvault/lib/models/index.d.ts
+++ b/lib/services/keyvault/lib/models/index.d.ts
@@ -401,8 +401,8 @@ export interface CertificateIssuerItem {
  *
  * @member {boolean} [exportable] Indicates if the private key can be exported.
  * @member {string} [keyType] The key type.
- * @member {number} [keySize] The key size in bytes. For example;  1024 or
- * 2048.
+ * @member {number} [keySize] The key size in bits. For example: 2048, 3072, or
+ * 4096 for RSA.
  * @member {boolean} [reuseKey] Indicates if the same key pair will be used on
  * certificate renewal.
  */
@@ -547,8 +547,8 @@ export interface IssuerParameters {
  * @member {boolean} [keyProperties.exportable] Indicates if the private key
  * can be exported.
  * @member {string} [keyProperties.keyType] The key type.
- * @member {number} [keyProperties.keySize] The key size in bytes. For example;
- * 1024 or 2048.
+ * @member {number} [keyProperties.keySize] The key size in bits. For example:
+ * 2048, 3072, or 4096 for RSA.
  * @member {boolean} [keyProperties.reuseKey] Indicates if the same key pair
  * will be used on certificate renewal.
  * @member {object} [secretProperties] Properties of the secret backing a
@@ -613,8 +613,8 @@ export interface CertificatePolicy {
  * @member {boolean} [policy.keyProperties.exportable] Indicates if the private
  * key can be exported.
  * @member {string} [policy.keyProperties.keyType] The key type.
- * @member {number} [policy.keyProperties.keySize] The key size in bytes. For
- * example;  1024 or 2048.
+ * @member {number} [policy.keyProperties.keySize] The key size in bits. For
+ * example: 2048, 3072, or 4096 for RSA.
  * @member {boolean} [policy.keyProperties.reuseKey] Indicates if the same key
  * pair will be used on certificate renewal.
  * @member {object} [policy.secretProperties] Properties of the secret backing
@@ -910,7 +910,8 @@ export interface Contacts {
  * @member {string} kty The type of key to create. For valid values, see
  * JsonWebKeyType. Possible values include: 'EC', 'EC-HSM', 'RSA', 'RSA-HSM',
  * 'oct'
- * @member {number} [keySize] The key size in bytes. For example, 1024 or 2048.
+ * @member {number} [keySize] The key size in bits. For example: 2048, 3072, or
+ * 4096 for RSA.
  * @member {array} [keyOps]
  * @member {object} [keyAttributes]
  * @member {string} [keyAttributes.recoveryLevel] Reflects the deletion
@@ -1132,7 +1133,7 @@ export interface SecretUpdateParameters {
  * the private key can be exported.
  * @member {string} [certificatePolicy.keyProperties.keyType] The key type.
  * @member {number} [certificatePolicy.keyProperties.keySize] The key size in
- * bytes. For example;  1024 or 2048.
+ * bits. For example: 2048, 3072, or 4096 for RSA.
  * @member {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if
  * the same key pair will be used on certificate renewal.
  * @member {object} [certificatePolicy.secretProperties] Properties of the
@@ -1216,7 +1217,7 @@ export interface CertificateCreateParameters {
  * the private key can be exported.
  * @member {string} [certificatePolicy.keyProperties.keyType] The key type.
  * @member {number} [certificatePolicy.keyProperties.keySize] The key size in
- * bytes. For example;  1024 or 2048.
+ * bits. For example: 2048, 3072, or 4096 for RSA.
  * @member {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if
  * the same key pair will be used on certificate renewal.
  * @member {object} [certificatePolicy.secretProperties] Properties of the
@@ -1297,7 +1298,7 @@ export interface CertificateImportParameters {
  * the private key can be exported.
  * @member {string} [certificatePolicy.keyProperties.keyType] The key type.
  * @member {number} [certificatePolicy.keyProperties.keySize] The key size in
- * bytes. For example;  1024 or 2048.
+ * bits. For example: 2048, 3072, or 4096 for RSA.
  * @member {boolean} [certificatePolicy.keyProperties.reuseKey] Indicates if
  * the same key pair will be used on certificate renewal.
  * @member {object} [certificatePolicy.secretProperties] Properties of the
diff --git a/lib/services/keyvault/lib/models/keyCreateParameters.js b/lib/services/keyvault/lib/models/keyCreateParameters.js
index f3fe1f1651..42d490277d 100644
--- a/lib/services/keyvault/lib/models/keyCreateParameters.js
+++ b/lib/services/keyvault/lib/models/keyCreateParameters.js
@@ -22,8 +22,8 @@ class KeyCreateParameters {
    * @member {string} kty The type of key to create. For valid values, see
    * JsonWebKeyType. Possible values include: 'EC', 'EC-HSM', 'RSA', 'RSA-HSM',
    * 'oct'
-   * @member {number} [keySize] The key size in bytes. For example, 1024 or
-   * 2048.
+   * @member {number} [keySize] The key size in bits. For example: 2048, 3072,
+   * or 4096 for RSA.
    * @member {array} [keyOps]
    * @member {object} [keyAttributes]
    * @member {string} [keyAttributes.recoveryLevel] Reflects the deletion
diff --git a/lib/services/keyvault/lib/models/keyProperties.js b/lib/services/keyvault/lib/models/keyProperties.js
index af010fb036..4a3d831573 100644
--- a/lib/services/keyvault/lib/models/keyProperties.js
+++ b/lib/services/keyvault/lib/models/keyProperties.js
@@ -20,8 +20,8 @@ class KeyProperties {
    * @member {boolean} [exportable] Indicates if the private key can be
    * exported.
    * @member {string} [keyType] The key type.
-   * @member {number} [keySize] The key size in bytes. For example;  1024 or
-   * 2048.
+   * @member {number} [keySize] The key size in bits. For example: 2048, 3072,
+   * or 4096 for RSA.
    * @member {boolean} [reuseKey] Indicates if the same key pair will be used
    * on certificate renewal.
    */
diff --git a/lib/services/keyvault/package.json b/lib/services/keyvault/package.json
index 774bed06fd..cfb25fea47 100644
--- a/lib/services/keyvault/package.json
+++ b/lib/services/keyvault/package.json
@@ -4,10 +4,13 @@
   "description": "KeyVaultClient Library with typescript type definitions for node",
   "version": "3.0.4-preview",
   "dependencies": {
-    "ms-rest": "^2.3.2",
+    "ms-rest": "^2.3.3",
     "ms-rest-azure": "^2.5.5"
   },
-  "keywords": [ "node", "azure" ],
+  "keywords": [
+    "node",
+    "azure"
+  ],
   "license": "MIT",
   "main": "./lib/keyVaultClient.js",
   "types": "./lib/keyVaultClient.d.ts",