The Dex File Format

Posted by fractalwrench on Thursday January 04, 2018 @01:41PM
from the blog.bugsnag.com dept.

https://blog.bugsnag.com/dex-and-d8/

( 3 comments | 30 points | on HN )

Re:The Dex File Format by vmarquet on Thursday January 04, 2018 @08:25PM (#16075728)

For a quick reference of the Dex file format, Ange Albertini (known for PoC||GTFO) made a poster: https://github.com/corkami/pics/blob/master/binary/DalvikEXe...

All his posters are pretty amazing: https://github.com/corkami/pics/blob/master/binary/README.md

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Re:The Dex File Format by xg15 on Friday January 05, 2018 @07:48AM (#16078237)

> The next value is a checksum, which is calculated by applying a function to the contents of the entire file, excluding any bytes preceding the checksum.

[...]

> The header also includes a SHA-1 hash of the file (excluding any preceding bytes).

Wait, each checksum includes the other? How does that work?

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Re:The Dex File Format by xg15 on Friday January 05, 2018 @11:59AM (#16079754)

... nevermind. Pardon the stupidity...

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