1 files changed, 26 insertions, 4 deletions
diff --git a/extensions/crypto/lib.rs b/extensions/crypto/lib.rs
index 45473f4d5..bf4174f75 100644
--- a/extensions/crypto/lib.rs
+++ b/extensions/crypto/lib.rs
@@ -21,10 +21,13 @@ pub fn init(maybe_seed: Option<u64>) -> Extension {
       prefix "deno:extensions/crypto",
       "01_crypto.js",
     ))
-    .ops(vec![(
-      "op_crypto_get_random_values",
-      op_sync(op_crypto_get_random_values),
-    )])
+    .ops(vec![
+      (
+        "op_crypto_get_random_values",
+        op_sync(op_crypto_get_random_values),
+      ),
+      ("op_crypto_random_uuid", op_sync(op_crypto_random_uuid)),
+    ])
     .state(move |state| {
       if let Some(seed) = maybe_seed {
         state.put(StdRng::seed_from_u64(seed));
@@ -51,6 +54,25 @@ pub fn op_crypto_get_random_values(
   Ok(())
 }
 
+pub fn op_crypto_random_uuid(
+  state: &mut OpState,
+  _args: (),
+  _zero_copy: (),
+) -> Result<String, AnyError> {
+  let maybe_seeded_rng = state.try_borrow_mut::<StdRng>();
+  let uuid = if let Some(seeded_rng) = maybe_seeded_rng {
+    let mut bytes = [0u8; 16];
+    seeded_rng.fill(&mut bytes);
+    uuid::Builder::from_bytes(bytes)
+      .set_version(uuid::Version::Random)
+      .build()
+  } else {
+    uuid::Uuid::new_v4()
+  };
+
+  Ok(uuid.to_string())
+}
+
 pub fn get_declaration() -> PathBuf {
   PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_crypto.d.ts")
 }