3DO Development Repo

1. Set the 3DO header[0] values as necessary of the AIF executable.
   1. Set the signature location.
   2. Do NOT set the signature size. Keep it / set it to zero (0x00000000).
2. Calculate the MD5 digest of the whole file.
3. Create the `message` to sign.
   1. Append the MD5 digest to the following data (presented in hex)
   2. 1ffffffffffffffffffffffffffffffffffffffffffffffffffffff003020300c06082a864886f70d020505000410
4. Use the “3DO” private key[1] to sign the message.
5. Append the signature to the end of the AIF executable.
6. Set the signature size to it's length (0x40).

[0] 3do_aif_header
[1] encryption_keys