From fc149cbb01bd82b784036c1bff6e634f87fbfa79 Mon Sep 17 00:00:00 2001
From: 0xturboblitz <florent.tavernier@gmail.com>
Date: Fri, 18 Aug 2023 13:25:40 +0200
Subject: [PATCH] clean

---
 app/scripts/mrzToSig.ts | 21 +++++++++++++++++++++
 app/utils/utils.ts      |  4 ++--
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/app/scripts/mrzToSig.ts b/app/scripts/mrzToSig.ts
index 24bf33876..cb759a16e 100644
--- a/app/scripts/mrzToSig.ts
+++ b/app/scripts/mrzToSig.ts
@@ -80,6 +80,15 @@ const md = forge.md.sha256.create();
 md.update(forge.util.binary.raw.encode(new Uint8Array(eContent)));
 const hashOfEContent = md.digest().getBytes();
 
+console.log('modulus', hexToDecimal(modulus));
+console.log('eContent', bytesToBigDecimal(passportData.eContent));
+console.log('signature', bytesToBigDecimal(passportData.encryptedDigest));
+// Convert the hash to a single decimal number
+
+const hashBigNumber = BigInt('0x' + forge.util.bytesToHex(hashOfEContent));
+
+console.log('hashOfEContent in big decimal', hashBigNumber.toString());
+
 // Signature verification
 const signatureBytes = Buffer.from(passportData.encryptedDigest).toString(
   'binary',
@@ -97,3 +106,15 @@ function hash(bytesArray: number[]): number[] {
   hash.update(Buffer.from(bytesArray));
   return Array.from(hash.digest()).map(x => (x < 128 ? x : x - 256));
 }
+
+function bytesToBigDecimal(arr: number[]): string {
+  let result = BigInt(0);
+  for (let i = 0; i < arr.length; i++) {
+    result = result * BigInt(256) + BigInt(arr[i] & 0xff);
+  }
+  return result.toString();
+}
+
+function hexToDecimal(hex: string): string {
+  return BigInt(`0x${hex}`).toString();
+}
diff --git a/app/utils/utils.ts b/app/utils/utils.ts
index 691a6312c..af0711e37 100644
--- a/app/utils/utils.ts
+++ b/app/utils/utils.ts
@@ -89,8 +89,8 @@ export function parsePubKeyString(pubKeyString: string) {
   const modulus = modulusMatch ? modulusMatch[1] : null;
   const exponent = publicExponentMatch ? publicExponentMatch[1] : null;
 
-  console.log('Modulus:', modulus);
-  console.log('Public Exponent:', exponent);
+  // console.log('Modulus:', modulus);
+  // console.log('Public Exponent:', exponent);
 
   if (!modulus || !exponent) {
     throw new Error('Could not parse public key string');