1 files changed, 20 insertions, 0 deletions

diff --git a/shared/extra-utils/crypto.ts b/shared/extra-utils/crypto.ts
new file mode 100644
index 000000000..1a583f1a0
--- /dev/null
+++ b/shared/extra-utils/crypto.ts
@@ -0,0 +1,20 @@
+import { BinaryToTextEncoding, createHash } from 'crypto'
+
+function sha256 (str: string | Buffer, encoding: BinaryToTextEncoding = 'hex') {
+  return createHash('sha256').update(str).digest(encoding)
+}
+
+function sha1 (str: string | Buffer, encoding: BinaryToTextEncoding = 'hex') {
+  return createHash('sha1').update(str).digest(encoding)
+}
+
+// high excluded
+function randomInt (low: number, high: number) {
+  return Math.floor(Math.random() * (high - low) + low)
+}
+
+export {
+  randomInt,
+  sha256,
+  sha1
+}