Decrypt Huawei Password Cipher

For users who have successfully decrypted their passwords, implement these security measures:

In older VRP versions, using the simple keyword meant the password was either stored in clear plain text or processed through a trivial reversible obfuscation routine.

( configuration signature enable ) to detect unauthorized modifications

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. decrypt huawei password cipher

system-view [Huawei] aaa [Huawei-aaa] local-user admin password irreversible-cipher NewSecurePassword123! Use code with caution.

Following AES encryption, Huawei applies a custom encoding scheme. This algorithm has been fully reverse-engineered and implemented in several community-developed tools.

Modern VRPv8 systems employ more robust cryptographic standards. Local user passwords use standard irreversible-cipher settings driven by SHA-256 or PBKDF2 with iterative stretching. Reversible ciphers on modern firmware use Advanced Encryption Standard (AES) in Cipher Block Chaining (CBC) mode, utilizing a hardcoded master key embedded within the VRP software. 3. Technical Methods to Decrypt Reversible Huawei Ciphers For users who have successfully decrypted their passwords,

Performing Encryption and Decryption - Huawei Technical Support

: Using tools such as ONT enable tools (e.g., V3-V5 version), enable Telnet access to the device. After completing the shell, use TFTP to transfer files: tftp -pl hw_ctree.xml 192.168.1.X and tftp -pl hw_boardinfo 192.168.1.X .

The %^%# markers at the beginning and end of the cipher string serve as magic numbers, identifying the specific encryption format and VRP version used to generate the cipher. 2. Common Huawei Cipher Formats If you share with third parties, their policies apply

If an attacker or an auditor obtains a backup of the configuration file containing these legacy cipher strings, they can use offline decryption tools or open-source Python scripts to instantly instantly recover the plaintext password. This is why these ciphers are considered obfuscation rather than true security. 3. The Modern "Irreversible-Cipher" Mechanism

def decrypt_huawei(cipher_text): # Remove delimiters enc = cipher_text.strip('%^%#') # Decode from base64 enc_bytes = base64.b64decode(enc) # Fixed key for V200R009-V200R019 (example) key = b'\x00\x01\x02...' # Redacted for security cipher = AES.new(key, AES.MODE_CBC, iv=b'\x00'*16) return cipher.decrypt(enc_bytes).decode().rstrip('\x00')

NirSoft's RouterPassView (version 1.90+) decrypts encrypted strings in multiple Huawei HGxxx routers. The tool works on Windows 2000 through Windows 10 and displays additional information about file encryption methods including file type, encrypted data start position, encryption algorithm, encryption key, and compression method when using the "Router File Information" mode.

Network administrators often encounter encrypted password strings when managing Huawei devices running the Versatile Routing Platform (VRP). These strings appear in configuration files under names like super password or local-user .