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<h3>
Felix C. Stegerman pushed to branch master
at <a href="https://salsa.debian.org/reproducible-builds/reproducible-website">Reproducible Builds / reproducible-website</a>
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<h4>
Commits:
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<strong><a href="https://salsa.debian.org/reproducible-builds/reproducible-website/-/commit/fb27884bb8b03b05dad56730e11618a5b38ee288">fb27884b</a></strong>
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<span>by Felix C. Stegerman</span>
<i>at 2021-08-03T13:49:07+00:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">2021-07: improved description of android code transparency</pre>
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<h4>1 changed file:</h4>
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<a href="#91e7f7a560867906c84e07b5b1698a1be95ca383">
_reports/2021-07.md
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<h4>Changes:</h4>
<li id="91e7f7a560867906c84e07b5b1698a1be95ca383">
<a href="https://salsa.debian.org/reproducible-builds/reproducible-website/-/commit/fb27884bb8b03b05dad56730e11618a5b38ee288#91e7f7a560867906c84e07b5b1698a1be95ca383"><strong>_reports/2021-07.md</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -93,7 +93,7 @@ Lastly, Holger filed Debian bug [#991285](https://bugs.debian.org/991285) to 'un</td>
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<pre style="margin: 0;"> <span id="LC93" class="line" lang="markdown"></span>
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<pre style="margin: 0;"> <span id="LC94" class="line" lang="markdown"><span class="gu" style="color: #800080; font-weight: 600;">#### Mobile development</span></span>
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<pre style="margin: 0;"> <span id="LC95" class="line" lang="markdown"></span>
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<td class="old_line diff-line-num old" data-linenumber="96" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC96" class="line" lang="markdown">It was noticed that from August 2021, <span class="p">[</span><span class="nv" style="color: #008080;">Android 'app bundles'</span><span class="p">](</span><span class="sx" style="color: #d14;">https://developer.android.com/guide/app-bundle</span><span class="p">)</span> will become mandatory for the Google Play Store. This will result in smaller file sizes and other advantages for the end-user, yet it will also require app developers to push equivalent 'APK' versions of their apps to other non-Play Store channels as well. But this will also mean that developers will need to supply Google with their app signing keys<span class="idiff left">, with various </span><span class="p"><span class="idiff">[</span></span><span class="nv" style="color: #008080;"><span class="idiff right">ramifications for </span>code transparency</span><span class="p">](</span><span class="sx" style="color: #d14;">https://developer.android.com/guide/app-bundle/code-transparency</span><span class="p">)</span>. Further information can be found on the announcements on the <span class="p">[</span><span class="nv" style="color: #008080;">Android Authority</span><span class="p">](</span><span class="sx" style="color: #d14;">https://www.androidauthority.com/android-apks-sunset-1636829/</span><span class="p">)</span> and <span class="p">[</span><span class="nv" style="color: #008080;">XDA Developers</span><span class="p">](</span><span class="sx" style="color: #d14;">https://www.xda-developers.com/google-play-billing-v3-app-bundle-requirement-2021/</span><span class="p">)</span> sites.</span>
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<pre style="margin: 0;">+<span id="LC96" class="line" lang="markdown">It was noticed that from August 2021, <span class="p">[</span><span class="nv" style="color: #008080;">Android 'app bundles'</span><span class="p">](</span><span class="sx" style="color: #d14;">https://developer.android.com/guide/app-bundle</span><span class="p">)</span> will become mandatory for the Google Play Store. This will result in smaller file sizes and other advantages for the end-user, yet it will also require app developers to push equivalent 'APK' versions of their apps to other non-Play Store channels as well. But this will also mean that developers will need to supply Google with their app signing keys<span class="idiff left">. The introduction of </span><span class="p"><span class="idiff">[</span></span><span class="nv" style="color: #008080;">code transparency<span class="idiff"> for app bundles</span></span><span class="p">](</span><span class="sx" style="color: #d14;">https://developer.android.com/guide/app-bundle/code-transparency</span><span class="p">)</span><span class="idiff"> does add an </span><span class="ge" style="font-style: italic;"><span class="idiff">*optional*</span></span><span class="idiff right"> code signing and verification mechanism (using a separate signing key held solely by the app developer). Unfortunately, code transparency files are not verified at install time — only manual verification is currently possible — and only guarantee the integrity of DEX and native code files (meaning interpreted code and assets could still have been modified)</span>. Further information can be found on the announcements on the <span class="p">[</span><span class="nv" style="color: #008080;">Android Authority</span><span class="p">](</span><span class="sx" style="color: #d14;">https://www.androidauthority.com/android-apks-sunset-1636829/</span><span class="p">)</span> and <span class="p">[</span><span class="nv" style="color: #008080;">XDA Developers</span><span class="p">](</span><span class="sx" style="color: #d14;">https://www.xda-developers.com/google-play-billing-v3-app-bundle-requirement-2021/</span><span class="p">)</span> sites.</span>
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<pre style="margin: 0;"> <span id="LC97" class="line" lang="markdown"></span>
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<pre style="margin: 0;"> <span id="LC98" class="line" lang="markdown">The <span class="p">[</span><span class="nv" style="color: #008080;">Jiten Japanese Dictionary</span><span class="p">](</span><span class="sx" style="color: #d14;">https://f-droid.org/packages/dev.obfusk.jiten/</span><span class="p">)</span> and <span class="p">[</span><span class="nv" style="color: #008080;">Bitcoin Wallet</span><span class="p">](</span><span class="sx" style="color: #d14;">https://f-droid.org/en/packages/de.schildbach.wallet/</span><span class="p">)</span> applications on the <span class="p">[</span><span class="nv" style="color: #008080;">F-Droid</span><span class="p">](</span><span class="sx" style="color: #d14;">https://f-droid.org</span><span class="p">)</span> application store are now reproducible using <span class="p">[</span><span class="nv" style="color: #008080;">signatures in metadata</span><span class="p">](</span><span class="sx" style="color: #d14;">https://f-droid.org/docs/Reproducible_Builds/</span><span class="p">)</span>.</span>
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