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function run_test() {
setup({explicit_done: true});
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 hmac_vectors.js provides the getTestVectors method
// for the algorithm that drives these tests.
var testVectors = getTestVectors();
// Test verification first, because signing tests rely on that working
testVectors.forEach(function(vector) {
var promise = importVectorKeys(vector, ["verify", "sign"])
.then(function(vector) {
promise_test(function(test) {
var operation = subtle.verify({name: "HMAC", hash: vector.hash}, vector.key, vector.signature, vector.plaintext)
.then(function(is_verified) {
assert_true(is_verified, "Signature verified");
}, function(err) {
assert_unreached("Verification should not throw error " + vector.name + ": " + err.message + "'");
});
return operation;
}, vector.name + " verification");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested verification.
promise_test(function(test) {
assert_unreached("importVectorKeys failed for " + vector.name + ". Message: ''" + err.message + "''");
}, "importVectorKeys step: " + vector.name + " verification");
});
all_promises.push(promise);
});
// Test verification with an altered buffer after call
testVectors.forEach(function(vector) {
var promise = importVectorKeys(vector, ["verify", "sign"])
.then(function(vector) {
promise_test(function(test) {
var signature = copyBuffer(vector.signature);
var operation = subtle.verify({name: "HMAC", hash: vector.hash}, vector.key, signature, vector.plaintext)
.then(function(is_verified) {
assert_true(is_verified, "Signature is not verified");
}, function(err) {
assert_unreached("Verification should not throw error " + vector.name + ": " + err.message + "'");
});
signature[0] = 255 - signature[0];
return operation;
}, vector.name + " verification with altered signature after call");
}, function(err) {
promise_test(function(test) {
assert_unreached("importVectorKeys failed for " + vector.name + ". Message: ''" + err.message + "''");
}, "importVectorKeys step: " + vector.name + " verification with altered signature after call");
});
all_promises.push(promise);
});
// Check for successful verification even if plaintext is altered after call.
testVectors.forEach(function(vector) {
var promise = importVectorKeys(vector, ["verify", "sign"])
.then(function(vector) {
promise_test(function(test) {
var plaintext = copyBuffer(vector.plaintext);
var operation = subtle.verify({name: "HMAC", hash: vector.hash}, vector.key, vector.signature, plaintext)
.then(function(is_verified) {
assert_true(is_verified, "Signature verified");
}, function(err) {
assert_unreached("Verification should not throw error " + vector.name + ": " + err.message + "'");
});
plaintext[0] = 255 - plaintext[0];
return operation;
}, vector.name + " with altered plaintext after call");
}, function(err) {
promise_test(function(test) {
assert_unreached("importVectorKeys failed for " + vector.name + ". Message: ''" + err.message + "''");
}, "importVectorKeys step: " + vector.name + " with altered plaintext");
});
all_promises.push(promise);
});
// Check for failures due to no "verify" usage.
testVectors.forEach(function(originalVector) {
var vector = Object.assign({}, originalVector);
var promise = importVectorKeys(vector, ["sign"])
.then(function(vector) {
promise_test(function(test) {
return subtle.verify({name: "HMAC", hash: vector.hash}, vector.key, vector.signature, vector.plaintext)
.then(function(plaintext) {
assert_unreached("Should have thrown error for no verify usage in " + vector.name + ": " + err.message + "'");
}, function(err) {
assert_equals(err.name, "InvalidAccessError", "Should throw InvalidAccessError instead of '" + err.message + "'");
});
}, vector.name + " no verify usage");
}, function(err) {
promise_test(function(test) {
assert_unreached("importVectorKeys failed for " + vector.name + ". Message: ''" + err.message + "''");
}, "importVectorKeys step: " + vector.name + " no verify usage");
});
all_promises.push(promise);
});
// Check for successful signing and verification.
testVectors.forEach(function(vector) {
var promise = importVectorKeys(vector, ["verify", "sign"])
.then(function(vectors) {
promise_test(function(test) {
return subtle.sign({name: "HMAC", hash: vector.hash}, vector.key, vector.plaintext)
.then(function(signature) {
// Can we get the verify the new signature?
return subtle.verify({name: "HMAC", hash: vector.hash}, vector.key, signature, vector.plaintext)
.then(function(is_verified) {
assert_true(is_verified, "Round trip verifies");
return signature;
}, function(err) {
assert_unreached("verify error for test " + vector.name + ": " + err.message + "'");
});
});
}, vector.name + " round trip");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested signing or verifying
promise_test(function(test) {
assert_unreached("importVectorKeys failed for " + vector.name + ". Message: ''" + err.message + "''");
}, "importVectorKeys step: " + vector.name + " round trip");
});
all_promises.push(promise);
});
// Test signing with the wrong algorithm
testVectors.forEach(function(vector) {
// Want to get the key for the wrong algorithm
var promise = subtle.generateKey({name: "ECDSA", namedCurve: "P-256", hash: "SHA-256"}, false, ["sign", "verify"])
.then(function(wrongKey) {
return importVectorKeys(vector, ["verify", "sign"])
.then(function(vectors) {
promise_test(function(test) {
var operation = subtle.sign({name: "HMAC", hash: vector.hash}, wrongKey.privateKey, vector.plaintext)
.then(function(signature) {
assert_unreached("Signing should not have succeeded for " + vector.name);
}, function(err) {
assert_equals(err.name, "InvalidAccessError", "Should have thrown InvalidAccessError instead of '" + err.message + "'");
});
return operation;
}, vector.name + " signing with wrong algorithm name");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested verification.
promise_test(function(test) {
assert_unreached("importVectorKeys failed for " + vector.name + ". Message: ''" + err.message + "''");
}, "importVectorKeys step: " + vector.name + " signing with wrong algorithm name");
});
}, function(err) {
promise_test(function(test) {
assert_unreached("Generate wrong key for test " + vector.name + " failed: '" + err.message + "'");
}, "generate wrong key step: " + vector.name + " signing with wrong algorithm name");
});
all_promises.push(promise);
});
// Test verification with the wrong algorithm
testVectors.forEach(function(vector) {
// Want to get the key for the wrong algorithm
var promise = subtle.generateKey({name: "ECDSA", namedCurve: "P-256", hash: "SHA-256"}, false, ["sign", "verify"])
.then(function(wrongKey) {
return importVectorKeys(vector, ["verify", "sign"])
.then(function(vector) {
promise_test(function(test) {
var operation = subtle.verify({name: "HMAC", hash: vector.hash}, wrongKey.publicKey, vector.signature, vector.plaintext)
.then(function(signature) {
assert_unreached("Verifying should not have succeeded for " + vector.name);
}, function(err) {
assert_equals(err.name, "InvalidAccessError", "Should have thrown InvalidAccessError instead of '" + err.message + "'");
});
return operation;
}, vector.name + " verifying with wrong algorithm name");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested verification.
promise_test(function(test) {
assert_unreached("importVectorKeys failed for " + vector.name + ". Message: ''" + err.message + "''");
}, "importVectorKeys step: " + vector.name + " verifying with wrong algorithm name");
});
}, function(err) {
promise_test(function(test) {
assert_unreached("Generate wrong key for test " + vector.name + " failed: '" + err.message + "'");
}, "generate wrong key step: " + vector.name + " verifying with wrong algorithm name");
});
all_promises.push(promise);
});
// Verification should fail if the plaintext is changed
testVectors.forEach(function(vector) {
var promise = importVectorKeys(vector, ["verify", "sign"])
.then(function(vector) {
var plaintext = copyBuffer(vector.plaintext);
plaintext[0] = 255 - plaintext[0];
promise_test(function(test) {
var operation = subtle.verify({name: "HMAC", hash: vector.hash}, vector.key, vector.signature, plaintext)
.then(function(is_verified) {
assert_false(is_verified, "Signature is NOT verified");
}, function(err) {
assert_unreached("Verification should not throw error " + vector.name + ": " + err.message + "'");
});
return operation;
}, vector.name + " verification failure due to wrong plaintext");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested verification.
promise_test(function(test) {
assert_unreached("importVectorKeys failed for " + vector.name + ". Message: ''" + err.message + "''");
}, "importVectorKeys step: " + vector.name + " verification failure due to wrong plaintext");
});
all_promises.push(promise);
});
// Verification should fail if the signature is changed
testVectors.forEach(function(vector) {
var promise = importVectorKeys(vector, ["verify", "sign"])
.then(function(vector) {
var signature = copyBuffer(vector.signature);
signature[0] = 255 - signature[0];
promise_test(function(test) {
var operation = subtle.verify({name: "HMAC", hash: vector.hash}, vector.key, signature, vector.plaintext)
.then(function(is_verified) {
assert_false(is_verified, "Signature is NOT verified");
}, function(err) {
assert_unreached("Verification should not throw error " + vector.name + ": " + err.message + "'");
});
return operation;
}, vector.name + " verification failure due to wrong signature");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested verification.
promise_test(function(test) {
assert_unreached("importVectorKeys failed for " + vector.name + ". Message: ''" + err.message + "''");
}, "importVectorKeys step: " + vector.name + " verification failure due to wrong signature");
});
all_promises.push(promise);
});
// Verification should fail if the signature is wrong length
testVectors.forEach(function(vector) {
var promise = importVectorKeys(vector, ["verify", "sign"])
.then(function(vector) {
var signature = vector.signature.slice(1); // Drop first byte
promise_test(function(test) {
var operation = subtle.verify({name: "HMAC", hash: vector.hash}, vector.key, signature, vector.plaintext)
.then(function(is_verified) {
assert_false(is_verified, "Signature is NOT verified");
}, function(err) {
assert_unreached("Verification should not throw error " + vector.name + ": " + err.message + "'");
});
return operation;
}, vector.name + " verification failure due to short signature");
}, function(err) {
// We need a failed test if the importVectorKey operation fails, so
// we know we never tested verification.
promise_test(function(test) {
assert_unreached("importVectorKeys failed for " + vector.name + ". Message: ''" + err.message + "''");
}, "importVectorKeys step: " + vector.name + " verification failure due to short signature");
});
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 signing and verifying, 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 importVectorKeys(vector, keyUsages) {
if (vector.key !== null) {
return new Promise(function(resolve, reject) {
resolve(vector);
});
} else {
return subtle.importKey("raw", vector.keyBuffer, {name: "HMAC", hash: vector.hash}, false, keyUsages)
.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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