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pre-use.sh

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+#!/bin/bash
+
+echo " =============================================================================="
+echo " AbsoluteSolver: PBKDF2-AES Decryptor - Pre-Use Setup, by chrisrich4892"
+echo " =============================================================================="
+
+echo "=== Setting up AbsoluteSolver for first-time use! ==="
+
+# Check if Python 3 is installed
+if ! command -v python3 &> /dev/null; then
+    echo "[!] Python 3 could not be found. Please install Python 3 and try again."
+    exit 1
+fi
+
+# Ensure pip is installed for Python 3
+if ! command -v pip3 &> /dev/null; then
+    echo "[*] pip3 not found. Attempting to install package manager dependencies..."
+    if command -v apt &> /dev/null; then
+        sudo apt update && sudo apt install -y python3-pip
+    elif command -v brew &> /dev/null; then
+        brew install python
+    else
+        echo "[!] Could not automatically install pip. Please install python3-pip manually."
+        exit 1
+    fi
+fi
+
+echo "[*] Upgrading pip to the latest version..."
+python3 -m pip install --upgrade pip --user &> /dev/null
+
+echo "[*] Installing required decryptor dependencies..."
+# pycryptodome provides the required Crypto.Protocol, Crypto.Hash, and Crypto.Cipher modules
+python3 -m pip install pycryptodome --user
+
+if [ $? -eq 0 ]; then
+    echo -e "- AbsoluteSolver Setup Complete! -"
+    echo "You can now run it using: python3 solver.py"
+else
+    echo -e ":( AbsoluteSolver Setup Failed, Please check your internet connection and permissions."
+    exit 1
+fi

solver.py

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+import base64
+from Crypto.Protocol.KDF import PBKDF2
+from Crypto.Hash import SHA256
+from Crypto.Cipher import AES
+
+# ==========================================
+# APPROACH SELECTION
+# ==========================================
+# Set this to True to test raw hex bytes. 
+# Set this to False to test pure plaintext strings.
+USE_RAW_HEX_BYTES = False
+
+if USE_RAW_HEX_BYTES:
+    # Option A: Raw Hex String (Will be converted to cryptographic bytes)
+    piece_1 = "4A434A454E534F4E"
+    piece_2 = "534F4C564552"
+    piece_3 = "636F707065722D39"
+    piece_4 = "736F6C766572"
+    piece_5 = "54455353415F434F4D50524F4D49534544"
+    piece_6 = "32303236"
+    
+    hex_string = piece_1 + piece_2 + piece_3 + piece_4 + piece_5 + piece_6
+    password = bytes.fromhex(hex_string)
+    print(f"Current Mode: RAW HEX BYTES")
+    print(f"Testing Hex Sequence: '{hex_string}'")
+else:
+    # Option B: Plaintext Strings
+    piece_1 = "JCJenson"
+    piece_2 = "NULLBYTE"
+    piece_3 = "copper-9"
+    piece_4 = "hunger"
+    piece_5 = "TESSA_COMPROMISED"
+    piece_6 = "2026"
+    
+    password = piece_1 + piece_2 + piece_3 + piece_4 + piece_5 + piece_6
+    print(f"Current Mode: PLAINTEXT STRINGS")
+    print(f"Testing Password String: '{password}'")
+
+# ==========================================
+# CRYPTOGRAPHIC PARAMETERS (FROM IMAGES)
+# ==========================================
+problems = {
+    "Problem I": {
+        "salt": "zjwPziNdCw/KeJllLzPmRljqfQxNWl8z",
+        "iv": "U106CuxdAEp6AWTA",
+        "ciphertext": "Ln+uvIwB+w+sVtlwLrwm6w==",
+        "tag": "3Xyql/cHrxBVx0nCFrl7qA=="
+    },
+    "Problem II": {
+        "salt": "6gV965IdM2b7zzmDy2gXcpp1DgawIXBq",
+        "iv": "p7bkD7c2zDnQivbU",
+        "ciphertext": "nSvFpXe1F6U7IwVJlEDR6A==",
+        "tag": "0bHBGmjimZH2hm/OEjVnsQ=="
+    },
+    "Problem III": {
+        "salt": "QkpTT/H3zL3SyLJUVlp07Pt70TJn8teS",
+        "iv": "L1niTTFIU/gANvN3",
+        "ciphertext": "MsDJIehDfbw8s2SQlARMKQ==",
+        "tag": "ypc32PBsQyV06i59052+NQ=="
+    }
+}
+
+iterations = 2100000
+
+print("Crunching keys across all problems... (This will take a moment)")
+print("-" * 60)
+
+# Loop through each problem to find the real one
+for name, data in problems.items():
+    try:
+        # Decode base64 components
+        salt = base64.b64decode(data["salt"])
+        iv = base64.b64decode(data["iv"])
+        ciphertext = base64.b64decode(data["ciphertext"])
+        auth_tag = base64.b64decode(data["tag"])
+        
+        # Derive the key using PBKDF2-HMAC-SHA256
+        key = PBKDF2(password, salt, dkLen=32, count=iterations, hmac_hash_module=SHA256)
+        
+        # Attempt AES-256-GCM decryption
+        cipher = AES.new(key, AES.MODE_GCM, nonce=iv)
+        decrypted_bytes = cipher.decrypt_and_verify(ciphertext, auth_tag)
+        
+        print(f"\n[+++] SUCCESS AT {name}! [+++]")
+        print("Decrypted Content:")
+        print(decrypted_bytes.decode('utf-8'))
+        print("-" * 60)
+        
+    except ValueError:
+        # GCM authentication tag validation fails if the password is wrong
+        print(f"[x] {name}: Verification failed.")
+    except Exception as e:
+        print(f"[!] {name}: Error occurred: {e}")
+
+print("\nProcessing complete.")