You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
2.0 KiB
43 lines
2.0 KiB
The tools in this directory are a scheme for autogenerating crypto doc support.
|
|
|
|
The central file is data/crypto_support.json, which is a JSON file that contains
|
|
the supported API levels for each crypto algorithm that has ever been supported
|
|
by Android. The categories are identified as described in the JCA, along with
|
|
a couple extra classes.
|
|
|
|
Each algorithm has up to three properties:
|
|
|
|
name - The name of the algorithm. These are currently normalized to
|
|
all-uppercase versions, but this produces substandard results in some cases
|
|
(eg, PBEWITHHMACSHA versus PBEWithHmacSHA), so it could be improved.
|
|
|
|
supported_api_levels: The set of Android API levels that this algorithm was/is
|
|
supported for. It should be a sequence of zero or more "N" values or "N-M"
|
|
ranges separated by commas followed by a "N+" value if the algorithm is
|
|
currently supported. For example: "17+", "1-8,22+", "1-10,15,22-24".
|
|
|
|
deprecated: Whether the algorithm is unsupported at the current API level. This
|
|
is equivalent to supported_api_levels.endswith('+'), but is included for
|
|
clarity's sake.
|
|
|
|
Updating the documentation is a three-step process: get the set of supported
|
|
algorithms, update the data file, then generate HTML based on the data file.
|
|
|
|
Getting the set of supported algorithms is done using
|
|
src/java/libcore/java/security/ListProviders.java. It's important that this is
|
|
run using vogar in mode=activity rather than the default of mode=device, as
|
|
the Android frameworks (in particular, Android Keystore) can add additional
|
|
support.
|
|
|
|
The data from ListProviders is fed into update_crypto_support.py, which rewrites
|
|
the data file. Any newly-added algorithms will be added to the file's data,
|
|
and any newly-removed algorithms will have their supported API levels updated.
|
|
|
|
The preceding two steps can be performed together by running
|
|
run_update_crypto_support.sh.
|
|
|
|
Finally, format_supported_algorithm_table.py reads the data file and outputs
|
|
a collection of HTML tables suitable for copying-and-pasting into the docs
|
|
to stdout. Add --javadoc to produce output appropriate for inclusion in
|
|
Javadoc.
|