PSAFE3
application/octet-stream
Magic Bytes
Offset: 0
50 57 53 33
The PSAFE3 format is an encrypted database utilized by Password Safe, an open-source password management utility originally designed by Bruce Schneier and currently maintained by Rony Shapiro. It functions as a secure container for storing account credentials, sensitive notes, and authentication data locally on a user’s computer. This third-generation format implements robust encryption standards such as Twofish, emphasizing data confidentiality while requiring a strong master password to ensure the integrity of the local vault.
Validation Code
How to validate .psafe3 files in Python
Python
def is_psafe3(file_path: str) -> bool:
"""Check if file is a valid PSAFE3 by magic bytes."""
signature = bytes([0x50, 0x57, 0x53, 0x33])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .psafe3 files in Node.js
Node.js
function isPSAFE3(buffer: Buffer): boolean {
const signature = Buffer.from([0x50, 0x57, 0x53, 0x33]);
return buffer.subarray(0, 4).equals(signature);
}
Go
func IsPSAFE3(data []byte) bool {
signature := []byte{0x50, 0x57, 0x53, 0x33}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
GET
/api/v1/psafe3
curl https://filesignature.org/api/v1/psafe3