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Last update:
11/12/2012
Current version:
1.34
Latest beta snapshot:
1.8.1b540
Image format
Starting at version 1.1, m0n0wall .img files have the following structure:
| standard gzipped bootable image |
| RSA signature |
| signature length (2 bytes) Intel byte order |
| magic (4 bytes, cb774de1h) |
The signature is generated with the OpenSSL crypto library's EVP signing functions, using SHA1 as the digest. The RSA public key which is used to verify the signature can be found here.