The encryption header is a random 12-byte value that is used as part of the decryption process, see for instance the header from a simple file as parsed by zip_parser:
There is really no way to further parse it, you can read more about this header in section 6.1 "Traditional PKWARE Decryption" in the ZIP application note, extract below:
6.1.3 Each encrypted file has an extra 12 bytes stored at the start
of the data area defining the encryption header for that file. The
encryption header is originally set to random values, and then
itself encrypted, using three, 32-bit keys. The key values are
initialized using the supplied encryption password. After each byte
is encrypted, the keys are then updated using pseudo-random number
generation techniques in combination with the same CRC-32 algorithm
used in PKZIP and described elsewhere in this document.
I hope this helps, let me know if you have any other query.
The encryption header is a random 12-byte value that is used as part of the decryption process, see for instance the header from a simple file as parsed by zip_parser:
[*] Encryption header: b'\x82+\xed\xab\x9e\x9e?\x86(h\xd6\xbd'There is really no way to further parse it, you can read more about this header in section 6.1 "Traditional PKWARE Decryption" in the ZIP application note, extract below:
I hope this helps, let me know if you have any other query.