Nicolás Alvarez

Results 30 comments of Nicolás Alvarez

Is anyone still working on this? I couldn't get @rib's branch to work. ``` File "isign/isign/signable.py", line 100, in _get_arch if codesig == None: UnboundLocalError: local variable 'codesig' referenced before...

I have been trying to reverse-engineer this chunk properly, since nobody ever figured out what the chunk content means, most third-party tools just look at the chunk's mere presence and...

> It could mean some or all scanlines are encoded with filter type 1 (Sub) I made a png using paeth filter on all scanlines, I added a CgBI chunk...

> I assume you mean 0x1000000 (with 6 zeroes after the one) instead of 0x10000000 (with 7 zeroes after the one). Decompiling Apple's pngcrush shows code like `if ((cgbi >>...

Can you attach a larger file for testing? Even if not the 20MB example, at least the 176KB one? Simply duplicating your 122-byte example a thousand times doesn't give me...

@davidje13 Your analysis seems correct. I realized that I never published *my* analysis (and now I feel bad about the redundant work >_

I can't believe it doesn't already work that way, if I hadn't found this issue I wouldn't have known until trying marge-bot in production :neutral_face: You're saying it will currently...

Doesn't this break backwards compatibility? Or was *nobody* using TCP with 16-bit message lengths in production yet?

No pude encontrar el ID de banco descompilando la app de iOS, y tampoco conseguí que la app funcione en mi iPhone con jailbreak ("por seguridad no es posible ingresar...

> if we can also export the CSAM database on device No you can't. ![image](https://user-images.githubusercontent.com/101955/129934863-862f4a4f-9281-4c41-8a3b-7983ab8e6c40.png)