1 files changed, 25 insertions, 0 deletions
diff --git a/op_crates/crypto/01_crypto.js b/op_crates/crypto/01_crypto.js
new file mode 100644
index 000000000..2f9424492
--- /dev/null
+++ b/op_crates/crypto/01_crypto.js
@@ -0,0 +1,25 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+
+((window) => {
+  const core = window.Deno.core;
+  function getRandomValues(typedArray) {
+    if (typedArray == null) throw new Error("Input must not be null");
+    if (typedArray.length > 65536) {
+      throw new Error("Input must not be longer than 65536");
+    }
+    const ui8 = new Uint8Array(
+      typedArray.buffer,
+      typedArray.byteOffset,
+      typedArray.byteLength,
+    );
+    core.jsonOpSync("op_get_random_values", {}, ui8);
+    return typedArray;
+  }
+  window.crypto = {
+    getRandomValues,
+  };
+  window.__bootstrap = window.__bootstrap || {};
+  window.__bootstrap.crypto = {
+    getRandomValues,
+  };
+})(this);