AeroDoc Video
by Burr Sutter
I made this video as a back-up in case the network flaked out on me - and it did many times during practice runs.
https://vimeo.com/79471028
The actual live demo went perfectly.
I also showed off the Cordova Tooling that was updated last week with JBoss Tools & JBDS.
And some cool Vert.x videos.
12 years, 10 months
cordova javascript api
by Erik Jan de Wit
Hi,
Just wanted to talk about the api for cordova crypto, right now the api looks like this:
var agCrypto = new AeroGear.Crypto();
agCrypto.deriveKey( function(rawPassword) {
var options = {
IV: "69696ee955b62b73cd62bda875fc73d68219e0036b7a0b37",
AAD: "feedfacedeadbeeffeedfacedeadbeefabaddad2",
key: rawPassword,
data: "My Bonnie lies over the ocean, my Bonnie lies over the sea"
};
agCrypto.encrypt( function(cipherText) {
console.log(cipherText)
}, options );
}, errorHandler, 'myPassword' );
So this calls the deriveKey function and within that function it calls the encrypt now this nesting is going to get worse when we add getRandomValue on top of this so I suggest we change it a bit to the style we also use in the data manager:
agCrypto.getRandomValue({
success: function (generatedIV) {
agCrypto.deriveKey({
password: 'my password',
success: function (rawPassword) {
agCrypto.encrypt({
options: {
IV: generatedIV,
key: rawPassword,
data: "My Bonnie lies over the ocean, my Bonnie lies over the sea"
},
success: function (cipherText) {
console.log(cipherText);
}
});
}
});
}
});
Although this style is more readable and the nesting could be broken up by introducing references to functions it's still not very nice and it's getting more away from the original javascript api. One last solution we could use be to use promises, because we already have a dependency to the jquery promises we could reuse them here and get rid of the nesting like so:
agCrypto.deriveKey('my password').then(function(rawPassword) {
return agCrypto.getRandomValue();
}).then(function(generatedIV) {
return agCrypto.encrypt({
IV: generatedIV,
key: rawPassword,
data: "My Bonnie lies over the ocean, my Bonnie lies over the sea"
});
}).then(function(cipherText) {
console.log(cipherText);
}, function(error) {
// there was some error.
});
Now in my opinion this is the most readable of them all, but the trick is now it looks nothing like the original javascript api, but maybe we need to let go of that in favour of readability. Which version do you prefer and what do you think?
Cheers,
Erik Jan
12 years, 10 months
