refactor: deno_crypto op crate (#7956)

This commit factors out "deno_crypto" op crate.

"rand" crate dependency was consequently moved to 
"deno_crypto" crate and reexported.

1 files changed, 14 insertions, 0 deletions

diff --git a/cli/ops/crypto.rs b/cli/ops/crypto.rs
new file mode 100644
index 000000000..a73843a33
--- /dev/null
+++ b/cli/ops/crypto.rs
@@ -0,0 +1,14 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+use deno_crypto::op_get_random_values;
+use deno_crypto::rand::rngs::StdRng;
+use deno_crypto::rand::SeedableRng;
+
+pub fn init(rt: &mut deno_core::JsRuntime, maybe_seed: Option<u64>) {
+  if let Some(seed) = maybe_seed {
+    let rng = StdRng::seed_from_u64(seed);
+    let op_state = rt.op_state();
+    let mut state = op_state.borrow_mut();
+    state.put::<StdRng>(rng);
+  }
+  super::reg_json_sync(rt, "op_get_random_values", op_get_random_values);
+}