1 files changed, 65 insertions, 0 deletions
diff --git a/decryptor/src/main.rs b/decryptor/src/main.rs
new file mode 100644
index 0000000..d48e7bb
--- /dev/null
+++ b/decryptor/src/main.rs
@@ -0,0 +1,65 @@
+use std::{env, process};
+use openssl::symm::{decrypt, Cipher};
+use hex;
+
+fn decrypt_authinfo(authinfo_raw: String) -> Result<(String, String), String> {
+    let authinfo = hex::decode(authinfo_raw).map_err(|_| "Invalid hex encoding for authinfo")?;
+
+    let cipher = Cipher::des_ede3();
+    let iv = [0u8; 8];
+
+    // Decrypting loop, iterating from 000000 to 999999
+    for i in 0..1_000_000 {
+        let key = format!("{:06}", i);
+        let key_bytes = format!("{}000000000000000000", key).into_bytes();
+
+        match decrypt(cipher, &key_bytes, Some(&iv), &authinfo) {
+            Ok(bytes) => {
+                let result = String::from_utf8_lossy(&bytes);
+
+                if result.contains("OTT") {
+                    return Ok((key, result.to_string()));
+                }
+            }
+            Err(_) => {
+                // Decryption failed with this key, continue trying
+            }
+        }
+    }
+
+    return Err("Could not find a possible key".to_string());
+}
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+
+    if args.len() != 2 {
+        eprintln!("Usage: {} <authinfo>", args[0]);
+        process::exit(1);
+    }
+
+    let authinfo_raw = args[1].clone();
+
+    match decrypt_authinfo(authinfo_raw) {
+        Ok((key, result)) => {
+            let components: Vec<&str> = result.split('$').collect();
+
+            println!("========================================");
+            println!("Found key: {}", key);
+            println!("========================================");
+            println!("{}", result);
+            println!("========================================");
+            println!("      random:  {}", components[0]);
+            println!(" encry token:  {}", components[1]);
+            println!("     user id:  {}", components[2]);
+            println!("   device id:  {}", components[3]);
+            println!("  ip address:  {}", components[4]);
+            println!(" mac address:  {}", components[5]);
+            println!("    reserved:  {}", components[6]);
+            println!("         ott:  {}", components[7]);
+        }
+        Err(err) => {
+            eprintln!("Error: {}", err);
+        }
+    }
+}