perf: use ops for node:crypto ciphers (#17819)

Towards #17809

1 files changed, 0 insertions, 47 deletions

diff --git a/ext/node/polyfills/_crypto/crypto_browserify/browserify_rsa.js b/ext/node/polyfills/_crypto/crypto_browserify/browserify_rsa.js
deleted file mode 100644
index b158462b8..000000000
--- a/ext/node/polyfills/_crypto/crypto_browserify/browserify_rsa.js
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-// Copyright 2017 crypto-browserify. All rights reserved. MIT license.
-
-import { BN } from "internal:deno_node/polyfills/_crypto/crypto_browserify/bn.js/bn.js";
-import { randomBytes } from "internal:deno_node/polyfills/_crypto/crypto_browserify/randombytes.ts";
-import { Buffer } from "internal:deno_node/polyfills/buffer.ts";
-
-function blind(priv) {
-  const r = getr(priv);
-  const blinder = r.toRed(BN.mont(priv.modulus)).redPow(
-    new BN(priv.publicExponent),
-  ).fromRed();
-  return { blinder: blinder, unblinder: r.invm(priv.modulus) };
-}
-
-function getr(priv) {
-  const len = priv.modulus.byteLength();
-  let r;
-  do {
-    r = new BN(randomBytes(len));
-  } while (
-    r.cmp(priv.modulus) >= 0 || !r.umod(priv.prime1) || !r.umod(priv.prime2)
-  );
-  return r;
-}
-
-function crt(msg, priv) {
-  const blinds = blind(priv);
-  const len = priv.modulus.byteLength();
-  const blinded = new BN(msg).mul(blinds.blinder).umod(priv.modulus);
-  const c1 = blinded.toRed(BN.mont(priv.prime1));
-  const c2 = blinded.toRed(BN.mont(priv.prime2));
-  const qinv = priv.coefficient;
-  const p = priv.prime1;
-  const q = priv.prime2;
-  const m1 = c1.redPow(priv.exponent1).fromRed();
-  const m2 = c2.redPow(priv.exponent2).fromRed();
-  const h = m1.isub(m2).imul(qinv).umod(p).imul(q);
-  return m2.iadd(h).imul(blinds.unblinder).umod(priv.modulus).toArrayLike(
-    Buffer,
-    "be",
-    len,
-  );
-}
-crt.getr = getr;
-
-export default crt;