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function define_tests() {
var subtle = self.crypto.subtle;
var testData = getTestData();
var testVectors = testData.testVectors;
return setUpBaseKeys().then(function (allKeys) {
var baseKeys = allKeys.baseKeys;
testVectors.forEach(function (vector) {
var algorithmName = vector.algorithm;
var params = vector.params;
var expected = vector.expected;
var testName = algorithmName + ' deriveBits';
// Test deriveBits
subsetTest(
promise_test,
function (test) {
var algorithm = Object.assign({ name: algorithmName }, params);
return subtle
.deriveBits(algorithm, baseKeys[algorithmName], 256)
.then(
function (derivation) {
assert_true(
equalBuffers(derivation, expected),
'Derived correct key'
);
},
function (err) {
assert_unreached(
'deriveBits failed with error ' +
err.name +
': ' +
err.message
);
}
);
},
testName
);
});
});
function setUpBaseKeys() {
var promises = [];
var baseKeys = {};
testVectors.forEach(function (vector) {
var algorithmName = vector.algorithm;
var password = vector.password;
// Key for normal operations
promises.push(
subtle
.importKey('raw-secret', password, algorithmName, false, [
'deriveBits',
])
.then(function (key) {
baseKeys[algorithmName] = key;
})
);
});
return Promise.all(promises).then(function () {
return {
baseKeys: baseKeys,
};
});
}
}
function equalBuffers(a, b) {
if (a.byteLength !== b.byteLength) {
return false;
}
var aView = new Uint8Array(a);
var bView = new Uint8Array(b);
for (var i = 0; i < aView.length; i++) {
if (aView[i] !== bView[i]) {
return false;
}
}
return true;
}