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Diffstat (limited to 'doc/bugs/gpg_error_on_android')
-rw-r--r-- | doc/bugs/gpg_error_on_android/comment_2_9ce5511a109bde50d8cf87bad0268b4a._comment | 26 |
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diff --git a/doc/bugs/gpg_error_on_android/comment_2_9ce5511a109bde50d8cf87bad0268b4a._comment b/doc/bugs/gpg_error_on_android/comment_2_9ce5511a109bde50d8cf87bad0268b4a._comment new file mode 100644 index 000000000..f1cd47296 --- /dev/null +++ b/doc/bugs/gpg_error_on_android/comment_2_9ce5511a109bde50d8cf87bad0268b4a._comment @@ -0,0 +1,26 @@ +[[!comment format=mdwn + username="http://joeyh.name/" + ip="4.154.7.235" + subject="comment 2" + date="2013-07-08T19:57:10Z" + content=""" +Based on <http://pthree.org/2009/06/08/gnupg-up-and-close/> and <http://www.faqs.org/rfcs/rfc4880.html>, symmetric encryption algorithm 3 is CAST5. + +When I run `gpg -v --version` on Android, I get a very short list of Cipher algorithms, just \"3DES (S2)\". + +Compare with on Linux, where it supports: + +<pre> +Cipher: 3DES (S2), CAST5 (S3), BLOWFISH (S4), AES (S7), AES192 (S8), + AES256 (S9), TWOFISH (S10), CAMELLIA128 (S11), CAMELLIA192 (S12), + CAMELLIA256 (S13) +</pre> + +I suspect that you guys have a gpg on your non-android side that either defaults to CAST5, or has been configured, via the default-preference-list setting in gpg.conf, to use it. It should be possible to adjust your gpg.conf to use 3DES by default, and then things will interoperate (anything already encrypted by git-annex still won't be visible on Android of course). + +The gpg shipped with git-annex on Android could be rebuilt to include these. However, it would probably need porting of more libraries to Android. I stopped once I got gpg to compile at all, and had to pass several configure flags to disable features, + +This is something that anyone interested could work on. (Ie, no Haskell!) See `standalone/android/Makefile` in the git-annex source tree, which uses the Android SDK and NDK to cross-compile gnupg for Android. + +I think that getting it to build without `--enable-minimal` would probably get most of the way there. Aha.. I just tried this, and the new binary seems to support nearly everything the linux one does, no extra libraries needed! +"""]] |