From cf4232191ef40d113452cb3c8c7b1662b6edf40e Mon Sep 17 00:00:00 2001
From: Slava Bacherikov <slava@bacher09.org>
Date: Fri, 22 Jul 2016 17:49:43 +0300
Subject: [PATCH] Add support for Insyde bios codes

---
 scripts/decrypt_bios.ts | 32 ++++++++++++++++++++++++++++++++
 spec/bios.spec.js       | 11 +++++++++++
 2 files changed, 43 insertions(+)

diff --git a/scripts/decrypt_bios.ts b/scripts/decrypt_bios.ts
index ae126a9..c38df3d 100644
--- a/scripts/decrypt_bios.ts
+++ b/scripts/decrypt_bios.ts
@@ -161,6 +161,30 @@ function HPMiniSolver(serial: string): string[] {
     }
 }
 
+/* Maybe need fixing for browsers where numbers is 32-bits */
+/* Some Acer, HP  laptops. 8 digit */
+function InsydeSolver(serial: string): string[] {
+    const salt = "Iou|hj&Z";
+    let password = "";
+    let b = 0;
+    let a = 0;
+    let ord = (str: string) => str.charCodeAt(0);
+    for (let i = 0; i < 8; i++) {
+        b = ord(salt.charAt(i)) ^ ord(serial.charAt(i));
+        a = b;
+        // a = (a * 0x66666667) >> 32;
+        a = (a * 0x66666667);
+        a = Math.floor(a  / Math.pow(2, 32));
+        a = (a >> 2) | (a & 0xC0);
+        if (a & 0x80000000) {
+            a++;
+        }
+        a *= 10;
+        password += (b - a).toString();
+    }
+    return [password];
+}
+
 export let Sony: BIOSDecoder = {
     model: BIOSModels.Sony,
     name: "Sony",
@@ -190,6 +214,14 @@ export let HPMini: BIOSDecoder = {
     solve: HPMiniSolver
 };
 
+export let Insyde: BIOSDecoder = {
+    model: BIOSModels.Insyde,
+    name: "Insyde H2O",
+    examples: ["03133610"],
+    check: (s) => /^\d{8}$/i.test(s),
+    solve: InsydeSolver
+};
+
 export let Decoders: BIOSDecoder[] = [
     Sony, Samsung, HPMini
 ];
diff --git a/spec/bios.spec.js b/spec/bios.spec.js
index 5769643..13d34bf 100644
--- a/spec/bios.spec.js
+++ b/spec/bios.spec.js
@@ -37,4 +37,15 @@ describe("Decryp BIOS", function() {
         expect(bios.HPMini.check("CNU12$4ABC")).toBe(false);
         expect(bios.HPMini.check("CNU12п4ABC")).toBe(false);
     });
+
+    it("Insyde key for 03133610 is 12891236", function() {
+        expect(bios.Insyde.solve("03133610")).toEqual(["12891236"]);
+    });
+
+    it("Insyde input validation", function() {
+        expect(bios.Insyde.check("12345678")).toBe(true);
+        expect(bios.Insyde.check("123456789")).toBe(false);
+        expect(bios.Insyde.check("1234o678")).toBe(false);
+        expect(bios.Insyde.check("12345678d")).toBe(false);
+    });
 });