Thomson Speedtouch series WLAN router firmware (.rbi)
.rbi file signature | application/octet-stream
The RBI file format is a firmware package used by Thomson Speedtouch series WLAN routers, developed for Thomson and later Technicolor devices. It is used to distribute router operating system images, support device initialization, and apply updates or recovery software during maintenance and servicing. As a device firmware format, it is generally safe to store, but legacy router images should be obtained from trusted sources and verified before installation to avoid corrupted or unauthorized updates.
Magic Bytes
Offset 0
42 4C 49 32 32 33
Sources: Gary Kessler
Extension
.rbi
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .rbi files in Python
def is_rbi(file_path: str) -> bool:
"""Check if file is a valid RBI by magic bytes."""
signature = bytes([0x42, 0x4C, 0x49, 0x32, 0x32, 0x33])
with open(file_path, "rb") as f:
return f.read(6) == signatureHow to validate .rbi files in Node.js
function isRBI(buffer: Buffer): boolean {
const signature = Buffer.from([0x42, 0x4C, 0x49, 0x32, 0x32, 0x33]);
return buffer.subarray(0, 6).equals(signature);
}How to validate .rbi files in Go
func IsRBI(data []byte) bool {
signature := []byte{0x42, 0x4C, 0x49, 0x32, 0x32, 0x33}
if len(data) < 6 {
return false
}
return bytes.Equal(data[:6], signature)
}API Endpoint
/api/v1/rbi
curl https://filesignature.org/api/v1/rbi
See the full API documentation for all endpoints and parameters.
Related Formats
Frequently Asked Questions
What is a .rbi file?
A .rbi file is a Thomson Speedtouch series WLAN router firmware file. The RBI file format is a firmware package used by Thomson Speedtouch series WLAN routers, developed for Thomson and later Technicolor devices. It is used to distribute router operating system images, support device initialization, and apply updates or recovery software during maintenance and servicing. As a device firmware format, it is generally safe to store, but legacy router images should be obtained from trusted sources and verified before installation to avoid corrupted or unauthorized updates.
What are the magic bytes for .rbi files?
The magic bytes for Thomson Speedtouch series WLAN router firmware files are 42 4C 49 32 32 33 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .rbi file?
To validate a .rbi file, read the first bytes of the file and compare them against the known magic bytes (42 4C 49 32 32 33) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .rbi files?
There is no officially registered MIME type for .rbi files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .rbi files?
Thomson Speedtouch series WLAN router firmware (.rbi) files are generally safe to open. They are classified as low risk because they primarily contain data rather than executable code. However, always ensure files come from a trusted source.