Elfififififififi... @elfi@pixie.town

A joke that probably might’ve been done before but thanks to my roommate for the suggestion

#MystDraws #LupinIII #InspectorZenigata #luzeni

pilot falling asleep in her mech, cuddling the robot girl avatar of the mech itself

Let's stop treating vaguely medieval Europe as a neutral or default setting. Call your European fantasy European. If you want it to be generic examine that and step a little bit away from the assumptions layered in the paneuropean vaguely white base.

What does that mean for your world? I don't know! That's the exciting bit!

#DecolonizeFantasy

a match made in heaven

// #RaspberryPi codec licensing serial algo (<=RPi3)
// shoutouts to fabien perigaud/synacktiv. your beerump 2017 presentation slides started me on this journey.
// (sure you redacted the fun stuff, I just rediscovered it myself)
// also shoutouts to everyone involved in BCM2708 reversing!
// greetings to elites, fuckings to lamers (second category includes broadcom and rpi foundation)

??=include <stdint.h>
??=include <stdio.h>

typedef uint8_t u8;
typedef uint16_t u16;
typedef uint32_t u32;

u8 vce_data[] = {
0x54, 0x6f, 0x76, 0x6b, 0x94, 0xce, 0x1a, 0x57, 0x56, 0x51, 0x0c, 0xb2, 0x72, 0xc9, 0xc3, 0x12,
0x13, 0xbc, 0xe8, 0xd2, 0x5b, 0xa3, 0x2d, 0x2a, 0x5a, 0x62, 0x4d, 0xeb, 0x16, 0x40, 0x05, 0x87,
0xe0, 0x98, 0x39, 0xf7, 0xac, 0xc6, 0xab, 0x7c, 0xe9, 0xfb, 0x07, 0xaa, 0x29, 0xcd, 0x1d, 0x9b,
0xf6, 0x0e, 0x01, 0xbb, 0x5c, 0xfc, 0x15, 0xae, 0xd9, 0xfa, 0x9c, 0xef, 0xf1, 0x75, 0x8e, 0x70,
0x46, 0x8b, 0xb0, 0x89, 0x50, 0xaf, 0x6e, 0x67, 0x18, 0xda, 0xee, 0xd4, 0x32, 0xbe, 0x4e, 0x58,
0x5d, 0x1f, 0x4b, 0x73, 0x88, 0xc0, 0x79, 0x02, 0xde, 0x47, 0xa0, 0x43, 0x9a, 0xdb, 0xc8, 0x35,
0x95, 0x3c, 0xcc, 0x8d, 0x64, 0x2f, 0x14, 0x68, 0x00, 0x71, 0x03, 0xb9, 0xed, 0x0b, 0xf3, 0x24,
0x60, 0xb1, 0x17, 0x63, 0xdf, 0x48, 0x41, 0xa4, 0x28, 0x5e, 0x2b, 0xd8, 0xb4, 0x90, 0xba, 0x83,
0xe4, 0x08, 0xd0, 0xe2, 0xb8, 0x6a, 0x10, 0x74, 0x9f, 0x7b, 0x19, 0x38, 0x8f, 0x91, 0xd6, 0xa8,
0x27, 0x06, 0x30, 0x33, 0x61, 0x34, 0x25, 0x21, 0x53, 0xc7, 0x66, 0x23, 0xff, 0xc5, 0x80, 0x85,
0xf4, 0xd7, 0x97, 0x99, 0x55, 0xf2, 0x8c, 0x04, 0x6c, 0x4f, 0xa1, 0x36, 0x20, 0x0a, 0xe1, 0x44,
0x59, 0xcf, 0x7d, 0xb6, 0xf9, 0x0f, 0x6d, 0x11, 0x78, 0x93, 0xe5, 0x3f, 0xf0, 0x9e, 0x84, 0xd3,
0x7e, 0xbd, 0xd1, 0xf5, 0xa5, 0x81, 0x22, 0x37, 0xf8, 0x52, 0xe3, 0x5f, 0xa9, 0xca, 0xfd, 0x42,
0x7f, 0x09, 0xa2, 0x9d, 0x8a, 0xb7, 0x4a, 0xe6, 0xa6, 0x77, 0x3d, 0x1c, 0x2e, 0xcb, 0x1b, 0x69,
0xb3, 0x1e, 0xc1, 0x7a, 0x82, 0xdd, 0x2c, 0xdc, 0x49, 0xea, 0x3a, 0xe7, 0x31, 0x4c, 0xad, 0xbf,
0x0d, 0xc2, 0xc4, 0x96, 0x65, 0x26, 0xfe, 0x92, 0x86, 0x3b, 0x3e, 0xec, 0xd5, 0xb5, 0xa7, 0x45
};

??=define INLINE static inline __attribute__ ((optimize (3))) __attribute__((always_inline))

INLINE u32 GET(u32 var, u8 bits) {
return vce_data[(var >> bits) & 0xff] << bits;
}

// should probably use bitwise OR, but this is what the vce code does
INLINE u32 GET32(u32 var) {
return GET(var,24) ^ GET(var,16) ^ GET(var,8) ^ GET(var,0);
}

// vce has no rotate instructions, so it does it the long way as in C
INLINE u32 ROR(u32 var, u32 right) {
return (var >> right) ^ (var << (32 - right));
}

u32 codec_license_hash(u32 board_serial /* r1 */,u32 codec /* r2 */) {

??=define CODEC_XOR_BOARD_ROR(bits) codec ^= ROR(board_serial,bits)
??=define BOARD_XOR_CODEC_ROR(bits) board_serial ^= ROR(codec,bits)

for (u32 i = 0; i < 17; i++) {
CODEC_XOR_BOARD_ROR(1);
BOARD_XOR_CODEC_ROR(6);
CODEC_XOR_BOARD_ROR(13);
BOARD_XOR_CODEC_ROR(17);
CODEC_XOR_BOARD_ROR(21);
BOARD_XOR_CODEC_ROR(29);

board_serial = GET32(board_serial);
codec = GET32(codec);
}

??=undef CODEC_XOR_SHIFTS_BOARD
??=undef BOARD_XOR_SHIFTS_CODEC

return codec;
}

// This board serial taken from hxxps://web.archive.org/web/20221208160705/forums.raspberrypi.com/viewtopic.php?t=38901
// The person who owns the SoC with this serial burned in fuses did a nice thing and provided their own WVC1 + MPG2 keys, we can use that to verify this implementation is correct:
// decode_MPG2=0x6fd66307
// decode_WVC1=0x01a512b0
??=define BOARD_SERIAL 0x9d3e8cb1

void main() {
printf("??= VC1 key\ndecode_WVC1=0x%08x\n\n", codec_license_hash(BOARD_SERIAL, 0xf00bad34 ^ 0x57564331 /* 'WVC1' */));
printf("??= MPEG-2 key\ndecode_MPG2=0x%08x\n\n", codec_license_hash(BOARD_SERIAL, 0xf00bad34 ^ 0x4D504732 /* 'MPG2 */));
printf("??= Super-secret key ;)\n??=\n"
"??= start.elf, before booting ARM, reads bootsig key from efuses, then compares against 1/2 of 5 hardcoded keys.\n"
"??= If not equal, then this key is checked, if not correct then infinite loop + LED flash\n"
"??= (same as if 3rdsig -- ARM kernel binary HMAC signature -- verification fails)\n"
"??= As to *why* this is done, I have no idea. Bootsig key is also 128-bit HMAC key and this reduces the available\n"
"??= possible entropy for unique bootsig key (necessary for boot-time security I would think!) down to either\n"
"??= 51, 52, or 77 bits depending on what key was burned into your Pi's efuses...\n"
"decode_0001=0x%08x\n\n", codec_license_hash(BOARD_SERIAL, 0xf00bad34 ^ 0x30303031 /* '0001' */));
}

Remember: You can stay in love with your nostalgia even as you fall out of love with the original material.

Reminder to anyone who supports the NYT staff's labor action: unless a miracle happens and we get a contract deal by midnight, we will be walking out for one day tomorrow, Dec. 8.

We'll be asking supportive readers to abstain from visiting/using NYT offerings for the day, midnight to midnight. That means articles. That means multimedia. That means... Wordle.

I know. That one pains me too. But maybe the word will be like LYMPH and we'll all be lucky to miss it.

Since y'all liked that castlevania comic from before here is another one i pulled from the archives. Family relations get weird when your father figure is technically also your son

Rubber ducking is good for programming, but infosec people really need to start blahajing

I had this idea for a photo collage that would depict the non-binary pride flag, and then I just kept making a bunch more for the other pride flags because it was so fun. Here are some of my favourites. The other 16 are in my redbubble shop here:
https://www.redbubble.com/people/Robiscuit/shop?asc=u

These were made using photography from Pexels and Pixabay (both supply CC0 imagery).

#MastoArt #Collage #Pride #FediGiftShop

Let’s see how this goes on Mastodon, ‘cause it had no good result on the bird site.

I need to commission the creation of new logos and banners for social media and studio8502.ca. I am perfectly willing to pay a reasonable fee, but I’d like to know the amount up front.

#retrocomputing #design