Gsmvntool File Password May 2026

The password is XOR-ed with a fixed 8-byte key 0xA3, 0x7C, 0x19, 0x4E, 0x2F, 0x8D, 0x56, 0xB0.
If the password is shorter than 8 bytes, it is padded with 0x00. The result is stored in the file header.

Obfuscated[i] = Password[i] XOR Key[i]

No salt, no key derivation function (KDF), no iteration count.

Since the algorithm is symmetric XOR, applying the same XOR key to the stored obfuscated bytes retrieves the original password. GSMVNTOOL File Password

Example (Python):

key = bytes([0xA3, 0x7C, 0x19, 0x4E, 0x2F, 0x8D, 0x56, 0xB0])
with open("protected_file.vkp", "rb") as f:
    f.seek(0x20)  # Header offset where obfuscated password starts
    obf = f.read(8)
password = bytes([obf[i] ^ key[i] for i in range(8)]).decode('ascii', errors='ignore')
print("Recovered password:", password.rstrip('\x00'))

Once you have the correct password, follow this extraction guide to avoid errors. The password is XOR-ed with a fixed 8-byte

Requirements:

Steps:

A partially downloaded archive can produce a "wrong password" error even when you enter the correct key. Check your file size against the source. Re-download the file using a download manager (like IDM or Free Download Manager) to ensure integrity.