BAC
application/octet-stream
Magic Bytes
Offset: 0
42 41 43 4B 4D 49 4B 45 44 49 53 4B
BAC is a proprietary backup container format originally developed by MyKey Technology for use within their specialized disk imaging and data management utilities. These files function as archival repositories for system configurations and user data, primarily utilized for restoration and recovery purposes on legacy hardware environments. This obsolete format is considered safe due to its lack of executable capabilities, though reliance on proprietary software makes modern data retrieval difficult without specific emulation or conversion utilities.
Validation Code
How to validate .bac files in Python
Python
def is_bac(file_path: str) -> bool:
"""Check if file is a valid BAC by magic bytes."""
signature = bytes([0x42, 0x41, 0x43, 0x4B, 0x4D, 0x49, 0x4B, 0x45, 0x44, 0x49, 0x53, 0x4B])
with open(file_path, "rb") as f:
return f.read(12) == signatureHow to validate .bac files in Node.js
Node.js
function isBAC(buffer: Buffer): boolean {
const signature = Buffer.from([0x42, 0x41, 0x43, 0x4B, 0x4D, 0x49, 0x4B, 0x45, 0x44, 0x49, 0x53, 0x4B]);
return buffer.subarray(0, 12).equals(signature);
}
Go
func IsBAC(data []byte) bool {
signature := []byte{0x42, 0x41, 0x43, 0x4B, 0x4D, 0x49, 0x4B, 0x45, 0x44, 0x49, 0x53, 0x4B}
if len(data) < 12 {
return false
}
return bytes.Equal(data[:12], signature)
}API Endpoint
GET
/api/v1/bac
curl https://filesignature.org/api/v1/bac