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Green: Bitcoin Wallet

latest release: 3.5.9 last analysed  3rd May 2021
Not reproducible from the source provided
3.8 ★★★★★
776 ratings
100thousand
1st January 2015

Published:

Our last analysis is based on data found in their Play Store description and their website and their source repository. We discuss issues with the provider here.
details below 

Older reviews (show 17 of 18 reproducible)

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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.

If you find something we should include, you can create an issue or edit this analysis yourself and create a merge request for your changes.

The Analysis

With this script we get:

Results:
appId:          com.greenaddress.greenbits_android_wallet
signer:         32f9cc00b13fbeace51e2fb51df482044e42ad34a9bd912f179fedb16a42970e
apkVersionName: 3.5.9
apkVersionCode: 22000359
apkHash:        f62c0b4b4882ad15a561fbabcccc34739d66470e752a21a4eab4037736593476

Diff:
Files /tmp/fromPlay_com.greenaddress.greenbits_android_wallet_22000359/apktool.yml and /tmp/fromBuild_com.greenaddress.greenbits_android_wallet_22000359/apktool.yml differ
Only in /tmp/fromPlay_com.greenaddress.greenbits_android_wallet_22000359/original/META-INF: GREENADD.RSA
Only in /tmp/fromPlay_com.greenaddress.greenbits_android_wallet_22000359/original/META-INF: GREENADD.SF
Only in /tmp/fromPlay_com.greenaddress.greenbits_android_wallet_22000359/original/META-INF: MANIFEST.MF
Files /tmp/fromPlay_com.greenaddress.greenbits_android_wallet_22000359/res/drawable-hdpi/ic_tor_60.png and /tmp/fromBuild_com.greenaddress.greenbits_android_wallet_22000359/res/drawable-hdpi/ic_tor_60.png differ
Files /tmp/fromPlay_com.greenaddress.greenbits_android_wallet_22000359/res/drawable-xxhdpi/ic_tor_60.png and /tmp/fromBuild_com.greenaddress.greenbits_android_wallet_22000359/res/drawable-xxhdpi/ic_tor_60.png differ

Revision, tag (and its signature):
object 215fd772c93093e56f43c42f3b87651901639623
type commit
tag release_3.5.9
tagger Domenico Gabriele <domenico@blockstream.com> 1619702421 +0200

Release 3.5.9

which is unfortunately a tiny deviation from the file we got from their GitHub.

As that file is signed for a Google Play release and might already be in rollout, we have to give the verdict not verifiable.

If it were not signed for Google Play release, we could test it without a verdict upon request.

(lw)

Verdict Explained

Not reproducible from the source provided

The app provider also shares code but we could so far not verify that the published code matches the published app!

This verdict means that the provider did share some source code but that we could not verify that this source code matches the released app. This might be due to the source being released later than the app or due to the provided instructions on how to compile the app not being sufficient or due to the provider excluding parts from the public source code. In any case, the result is a discrepancy between the app we can create and the app we can find on GooglePlay 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.

The app cannot be independently verified. If the provider puts your funds at risk on purpose or by accident, you will probably not know about the issue before people start losing money. If the provider is more criminally inclined he might have collected all the backups of all the wallets, ready to be emptied at the press of a button. The app might have a formidable track record but out of distress or change in management turns out to be evil from some point on, with nobody outside ever knowing before it is too late.