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function run_test() {
var subtle = self.crypto.subtle; // Change to test prefixed implementations
// When are all these tests really done? When all the promises they use have resolved.
var all_promises = [];
// Source file aes_XXX_vectors.js provides the getTestVectors method
// for the AES-XXX algorithm that drives these tests.
var vectors = getTestVectors();
var passingVectors = vectors.passing;
var failingVectors = vectors.failing;
var decryptionFailingVectors = vectors.decryptionFailing;
// Check for successful encryption.
passingVectors.forEach(function(vector) {
var promise = importVectorKey(vector, ["encrypt", "decrypt"])
.then(function(vector) {
promise_test(function(test) {
return subtle.encrypt(vector.algorithm, vector.key, vector.plaintext)
.then(function(result) {
assert_true(equalBuffers(result, vector.result), "Should return expected result");
}, function(err) {
assert_unreached("encrypt error for test " + vector.name + ": " + err.message);
});
}, vector.name);
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested encryption
promise_test(function(test) {
assert_unreached("importKey failed for " + vector.name);
}, "importKey step: " + vector.name);
});
all_promises.push(promise);
});
// Check for successful encryption even if the buffer is changed after calling encrypt.
passingVectors.forEach(function(vector) {
var plaintext = copyBuffer(vector.plaintext);
var promise = importVectorKey(vector, ["encrypt", "decrypt"])
.then(function(vector) {
promise_test(function(test) {
var operation = subtle.encrypt(vector.algorithm, vector.key, plaintext)
.then(function(result) {
assert_true(equalBuffers(result, vector.result), "Should return expected result");
}, function(err) {
assert_unreached("encrypt error for test " + vector.name + ": " + err.message);
});
plaintext[0] = 255 - plaintext[0];
return operation;
}, vector.name + " with altered plaintext");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested encryption
promise_test(function(test) {
assert_unreached("importKey failed for " + vector.name);
}, "importKey step: " + vector.name + " with altered plaintext");
});
all_promises.push(promise);
});
// Check for successful decryption.
passingVectors.forEach(function(vector) {
var promise = importVectorKey(vector, ["encrypt", "decrypt"])
.then(function(vector) {
promise_test(function(test) {
return subtle.decrypt(vector.algorithm, vector.key, vector.result)
.then(function(result) {
assert_true(equalBuffers(result, vector.plaintext), "Should return expected result");
}, function(err) {
assert_unreached("decrypt error for test " + vector.name + ": " + err.message);
});
}, vector.name + " decryption");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested encryption
promise_test(function(test) {
assert_unreached("importKey failed for " + vector.name);
}, "importKey step for decryption: " + vector.name);
});
all_promises.push(promise);
});
// Check for successful decryption even if ciphertext is altered.
passingVectors.forEach(function(vector) {
var ciphertext = copyBuffer(vector.result);
var promise = importVectorKey(vector, ["encrypt", "decrypt"])
.then(function(vector) {
promise_test(function(test) {
var operation = subtle.decrypt(vector.algorithm, vector.key, ciphertext)
.then(function(result) {
assert_true(equalBuffers(result, vector.plaintext), "Should return expected result");
}, function(err) {
assert_unreached("decrypt error for test " + vector.name + ": " + err.message);
});
ciphertext[0] = 255 - ciphertext[0];
return operation;
}, vector.name + " decryption with altered ciphertext");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested encryption
promise_test(function(test) {
assert_unreached("importKey failed for " + vector.name);
}, "importKey step for decryption: " + vector.name + " with altered ciphertext");
});
all_promises.push(promise);
});
// Everything that succeeded should fail if no "encrypt" usage.
passingVectors.forEach(function(vector) {
// Don't want to overwrite key being used for success tests!
var badVector = Object.assign({}, vector);
badVector.key = null;
var promise = importVectorKey(badVector, ["decrypt"])
.then(function(vector) {
promise_test(function(test) {
return subtle.encrypt(vector.algorithm, vector.key, vector.plaintext)
.then(function(result) {
assert_unreached("should have thrown exception for test " + vector.name);
}, function(err) {
assert_equals(err.name, "InvalidAccessError", "Should throw an InvalidAccessError instead of " + err.message)
});
}, vector.name + " without encrypt usage");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested encryption
promise_test(function(test) {
assert_unreached("importKey failed for " + vector.name);
}, "importKey step: " + vector.name + " without encrypt usage");
});
all_promises.push(promise);
});
// Encryption should fail if algorithm of key doesn't match algorithm of function call.
passingVectors.forEach(function(vector) {
var algorithm = Object.assign({}, vector.algorithm);
if (algorithm.name === "AES-CBC") {
algorithm.name = "AES-CTR";
algorithm.counter = new Uint8Array(16);
algorithm.length = 64;
} else {
algorithm.name = "AES-CBC";
algorithm.iv = new Uint8Array(16); // Need syntactically valid parameter to get to error being checked.
}
var promise = importVectorKey(vector, ["encrypt", "decrypt"])
.then(function(vector) {
promise_test(function(test) {
return subtle.encrypt(algorithm, vector.key, vector.plaintext)
.then(function(result) {
assert_unreached("encrypt succeeded despite mismatch " + vector.name + ": " + err.message);
}, function(err) {
assert_equals(err.name, "InvalidAccessError", "Mismatch should cause InvalidAccessError instead of " + err.message);
});
}, vector.name + " with mismatched key and algorithm");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested encryption
promise_test(function(test) {
assert_unreached("importKey failed for " + vector.name);
}, "importKey step: " + vector.name + " with mismatched key and algorithm");
});
all_promises.push(promise);
});
// Everything that succeeded decrypting should fail if no "decrypt" usage.
passingVectors.forEach(function(vector) {
// Don't want to overwrite key being used for success tests!
var badVector = Object.assign({}, vector);
badVector.key = null;
var promise = importVectorKey(badVector, ["encrypt"])
.then(function(vector) {
promise_test(function(test) {
return subtle.decrypt(vector.algorithm, vector.key, vector.result)
.then(function(result) {
assert_unreached("should have thrown exception for test " + vector.name);
}, function(err) {
assert_equals(err.name, "InvalidAccessError", "Should throw an InvalidAccessError instead of " + err.message)
});
}, vector.name + " without decrypt usage");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested encryption
promise_test(function(test) {
assert_unreached("importKey failed for " + vector.name);
}, "importKey step: " + vector.name + " without decrypt usage");
});
all_promises.push(promise);
});
// Check for OperationError due to data lengths.
failingVectors.forEach(function(vector) {
var promise = importVectorKey(vector, ["encrypt", "decrypt"])
.then(function(vector) {
promise_test(function(test) {
return subtle.encrypt(vector.algorithm, vector.key, vector.plaintext)
.then(function(result) {
assert_unreached("should have thrown exception for test " + vector.name);
}, function(err) {
assert_equals(err.name, "OperationError", "Should throw an OperationError instead of " + err.message)
});
}, vector.name);
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested encryption
promise_test(function(test) {
assert_unreached("importKey failed for " + vector.name);
}, "importKey step: " + vector.name);
});
all_promises.push(promise);
});
// Check for OperationError due to data lengths for decryption, too.
failingVectors.forEach(function(vector) {
var promise = importVectorKey(vector, ["encrypt", "decrypt"])
.then(function(vector) {
promise_test(function(test) {
return subtle.decrypt(vector.algorithm, vector.key, vector.result)
.then(function(result) {
assert_unreached("should have thrown exception for test " + vector.name);
}, function(err) {
assert_equals(err.name, "OperationError", "Should throw an OperationError instead of " + err.message)
});
}, vector.name + " decryption");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested encryption
promise_test(function(test) {
assert_unreached("importKey failed for " + vector.name);
}, "importKey step: decryption " + vector.name);
});
all_promises.push(promise);
});
// Check for decryption failing for algorithm-specific reasons (such as bad
// padding for AES-CBC).
decryptionFailingVectors.forEach(function(vector) {
var promise = importVectorKey(vector, ["encrypt", "decrypt"])
.then(function(vector) {
promise_test(function(test) {
return subtle.decrypt(vector.algorithm, vector.key, vector.result)
.then(function(result) {
assert_unreached("should have thrown exception for test " + vector.name);
}, function(err) {
assert_equals(err.name, "OperationError", "Should throw an OperationError instead of " + err.message)
});
}, vector.name);
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested encryption
promise_test(function(test) {
assert_unreached("importKey failed for " + vector.name);
}, "importKey step: decryption " + vector.name);
});
all_promises.push(promise);
});
promise_test(function() {
return Promise.all(all_promises)
.then(function() {done();})
.catch(function() {done();})
}, "setup");
// A test vector has all needed fields for encryption, EXCEPT that the
// key field may be null. This function replaces that null with the Correct
// CryptoKey object.
//
// Returns a Promise that yields an updated vector on success.
function importVectorKey(vector, usages) {
if (vector.key !== null) {
return new Promise(function(resolve, reject) {
resolve(vector);
});
} else {
return subtle.importKey("raw", vector.keyBuffer, {name: vector.algorithm.name}, false, usages)
.then(function(key) {
vector.key = key;
return vector;
});
}
}
// Returns a copy of the sourceBuffer it is sent.
function copyBuffer(sourceBuffer) {
var source = new Uint8Array(sourceBuffer);
var copy = new Uint8Array(sourceBuffer.byteLength)
for (var i=0; i<source.byteLength; i++) {
copy[i] = source[i];
}
return copy;
}
function equalBuffers(a, b) {
if (a.byteLength !== b.byteLength) {
return false;
}
var aBytes = new Uint8Array(a);
var bBytes = new Uint8Array(b);
for (var i=0; i<a.byteLength; i++) {
if (aBytes[i] !== bBytes[i]) {
return false;
}
}
return true;
}
return;
}
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