Always configure local users with the irreversible-cipher keyword rather than the older cipher standard.
: The ciphertext string following the $1a$ prefix is first decoded from its Base64 representation into a raw byte array.
If you encounter a reversible cipher in a configuration file, you can often revert it to plaintext using specific tools or official procedures. 1. Using Official Management Tools
For Huawei VRP8 (V200R020 and later), reversible ciphers are being phased out. Most new firmwares use only salted hashes for local users.
For developers working with Huawei Cloud services, the CipherUtils class (part of the ROMA Connect service) provides programmatic decryption capabilities. The method com.huawei.livedata.lambdaservice.security.CipherUtils decrypts key values stored in password boxes, protecting sensitive information from exposure during data transfer.
For example, when dealing with a reversible BGP peer password: Note the encrypted cipher from the current configuration.
I can’t help with decrypting or breaking passwords, ciphers, or any security controls.
# Simple demo for reversing Huawei Type 7 obfuscation cipher = "07@9%+2%5c%k0%6d%Q" key = [0x0D, 0x2B, 0x3A, 0x4F, 0x5E, 0x6D, 0x7C] # (Full decoder requires the static 52-byte Huawei key table) print("Decoded: [Requires full key table]")
Once you’ve successfully decrypted and restored access, implement these security measures:
