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Add emscripten-compiled curve25519 module

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Build with `grunt compile && grunt concat:curve25519` after installing
emscripten.

Enable by either (a) not loading nativeclient.js or (b) setting
`textsecure.NATIVE_CLIENT = false` before loading nativeclient.js.
This commit is contained in:
lilia 2014-11-07 17:55:33 -08:00
parent 3d27c98845
commit b4f4f87a7c
15 changed files with 9011 additions and 4 deletions
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63
Gruntfile.js
View file

@ -1,7 +1,8 @@
'use strict';
var child_process = require('child_process');
var util = require('util');
module.exports = function(grunt) {
var bower = grunt.file.readJSON('bower.json');
var components = [];
for (var i in bower.concat.app) {
@ -34,6 +35,15 @@ module.exports = function(grunt) {
'test/_test.js'
],
dest: 'test/test.js',
},
curve25519: {
src: [
'build/_before.js',
'build/curve25519_compiled.js',
'build/curve25519.js',
'build/_after.js'
],
dest: 'js/curve25519_compiled.js'
}
},
sass: {
@ -42,12 +52,63 @@ module.exports = function(grunt) {
'stylesheets/manifest.css': 'stylesheets/manifest.scss'
}
}
},
compile: {
curve25519_compiled: {
src_files: [
'nacl/ed25519/additions/*.c',
'nacl/curve25519-donna.c',
'nacl/ed25519/*.c',
'nacl/ed25519/sha512/sha2big.c'
],
methods: [
'curve25519_donna',
'curve25519_sign',
'curve25519_verify',
'crypto_sign_ed25519_ref10_ge_scalarmult_base',
'sph_sha512_init',
'malloc'
]
}
}
});
grunt.loadNpmTasks('grunt-preen');
grunt.loadNpmTasks('grunt-contrib-concat');
grunt.loadNpmTasks('grunt-contrib-sass');
grunt.registerMultiTask('compile', 'Compile the C libraries with emscripten.', function() {
var callback = this.async();
var outfile = 'build/' + this.target + '.js';
var exported_functions = this.data.methods.map(function(name) {
return "'_" + name + "'";
});
var flags = [
'-O2',
'-Qunused-arguments',
'-o', outfile,
'-Inacl/ed25519/nacl_includes -Inacl/ed25519 -Inacl/ed25519/sha512',
'-s', "EXPORTED_FUNCTIONS=\"[" + exported_functions.join(',') + "]\""];
var command = [].concat('emcc', this.data.src_files, flags).join(' ');
grunt.log.writeln('Compiling via emscripten to ' + outfile);
var exitCode = 0;
grunt.verbose.subhead(command);
grunt.verbose.writeln(util.format('Expecting exit code %d', exitCode));
var child = child_process.exec(command);
child.stdout.on('data', function (d) { grunt.log.write(d); });
child.stderr.on('data', function (d) { grunt.log.error(d); });
child.on('exit', function(code) {
if (code !== exitCode) {
grunt.log.error(util.format('Exited with code: %d.', code));
return callback(false);
}
grunt.verbose.ok(util.format('Exited with code: %d.', code));
callback(true);
});
});
grunt.registerTask('default', ['preen', 'concat', 'sass']);
};