P25
application/octet-stream
Magic Bytes
Offset: 0
65 87 78 56
The P25 file format is a specialized data structure utilized by the Association of Public-Safety Communications Officials for Project 25 digital radio systems. It primarily serves as a container for storing configuration data, voice logs, and signal information for land mobile radio equipment used by emergency services and government agencies. As a static data format, it poses minimal security risks, though the standard is increasingly considered legacy in areas transitioning toward LTE-based public safety broadband networks.
Validation Code
How to validate .p25 files in Python
Python
def is_p25(file_path: str) -> bool:
"""Check if file is a valid P25 by magic bytes."""
signature = bytes([0x65, 0x87, 0x78, 0x56])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .p25 files in Node.js
Node.js
function isP25(buffer: Buffer): boolean {
const signature = Buffer.from([0x65, 0x87, 0x78, 0x56]);
return buffer.subarray(0, 4).equals(signature);
}
Go
func IsP25(data []byte) bool {
signature := []byte{0x65, 0x87, 0x78, 0x56}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
GET
/api/v1/p25
curl https://filesignature.org/api/v1/p25