Move away from local device authentication. Utilize centralized Authentication, Authorization, and Accounting (AAA) systems like RADIUS or TACACS+ to manage access control externally.
When you configure a password using modern VRP standards, the system applies secure hashing algorithms:
: These are technically hashes, not ciphers, and cannot be "decrypted." They must be cracked via brute-force or wordlist attacks using tools like (Module 10000 for PBKDF2-HMAC-SHA256). Forensic & Administrative Access Smartphone Backups : Forensic investigators use the methods described in the Park et al. paper to bypass user-set passwords in mobile backups. Official Huawei Tools : For enterprise systems, Huawei provides the
: These use symmetric encryption algorithms like 3DES or AES . They are designed so the device can decrypt them back to plain text when needed (e.g., to send a password over a protocol like SNMP or PPP) . decrypt huawei password cipher
Press (or the prompt's specified key combination) when prompted to enter the BootROM menu.
Using the irreversible-cipher keyword ensures that the VRP automatically applies the highest available secure hashing standard (Type 12/16) to the new password, protecting it from future offline decryption attempts. Security Best Practices for VRP Password Management
: Utilize GPU-accelerated cracking software like Hashcat or John the Ripper . Custom modules or community rulesets are often required to match the exact structural layout of Huawei's PBKDF2 implementation. Move away from local device authentication
If your security audit reveals that your Huawei network devices are using weak or reversible ciphers, you should immediately update your configuration to safeguard your infrastructure.
Keep the VRP operating system updated to the latest stable release to replace legacy cryptographic algorithms with modern AES-256 and PBKDF2 implementations.
For configurations that use DES-based encryption, researchers have identified a common hardcoded key ( \x01\x02\x03\x04\x05\x06\x07\x08 ). They are designed so the device can decrypt
Network administrators often encounter encrypted password strings when managing Huawei switches, routers, and firewalls. These strings appear in the configuration file ( vrpcfg.cfg ) next to usernames, community strings, or RADIUS keys. Understanding how Huawei secures these credentials—and how they can be decrypted—is essential for security auditing, password recovery, and vulnerability management.
The encryption approach varies significantly across different Huawei device families and VRP versions:
In the context of network devices (routers and firewalls), Huawei utilizes several "cipher" formats for storing passwords in configuration files. Depending on the device type and age, these can often be reversed: Common Huawei Cipher Types & Decryption Methods Simple DES-based Ciphers