Help spread awareness for build reproducibility
Please help us spread the word, asking Atomex - Crypto Wallet & Atomic swap DEX to support reproducible builds via their Twitter!
Do your own research!
Try out searching for "lost bitcoins", "stole my money" or "scammers" together with the wallet's name, even if you think the wallet is generally trustworthy. For all the bigger wallets you will find accusations. Make sure you understand why they were made and if you are comfortable with the provider's reaction.
The Analysis ¶
Atomex — is a non-custodial crypto wallet
and it also supports Bitcoin and …
Atomex is an open-source project by the Baking Bad team, which is known in the Tezos community as one of the most active ecosystem contributors.
and indeed their linked GitHub account has a repository that looks promising: atomex-me/atomex.mobile.
Unfortunately at this point I have to give up as this is the first project we review that was built in Visual Studio using C#. As there are no build instructions I can only hope for help from the provider and conclude for now that the app is not verifiable.
We could not verify that the provided code matches the binary!
As part of our Methodology, we ask:Is the published binary matching the published source code? If not, we tag it
Published code doesn’t help much if it is not what the published app was built from. That is why we try to reproduce the binary. We
- obtain the binary from the provider
- compile the published source code using the published build instructions into a binary
- compare the two binaries
- we might spend some time working around issues that are easy to work around
If this fails, we might search if other revisions match or if we can deduct the source of the mismatch but generally consider it on the provider to provide the correct source code and build instructions to reproduce the build, so we usually open a ticket in their code repository.
In any case, the result is a discrepancy between the app we can create and the app we can find on the app store and any discrepancy might leak your backup to the server on purpose or by accident.
As we cannot verify that the source provided is the source the app was compiled from, this category is only slightly better than closed source but for now we have hope projects come around and fix verifiability issues.
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