So I've been fussing about with this on and off for a while, and I've had no luck with finding this. I've been very enamored with the idea of being able to make flipnotes from my PC but can't seem to work this part out. I found info that apparently contains the first 4 bytes of the private key, and did a RAM dump of Flipnote Studio to pull out that plus the next 124 bytes, for a total of 128 bytes. But, I don't know if this is the correct length, the correct start of the key, or how to make it a .pem file capable of signing a flipnote. If anyone could help point me in the right direction from here, I'd very much appreciate it. I can try to privately provide the assumed key string and my RAM dump if needed. I give my thanks in advance to anyone who can help me get this sorted out.