LayoutTests/crypto/subtle/hkdf-deriveBits-failures.html - Issue 822083003: Webcrypto: add layout tests for HKDF algorithm

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Issue 822083003: Webcrypto: add layout tests for HKDF algorithm (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Created 6 years ago

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« LayoutTests/crypto/subtle/hkdf-deriveBits.html ('K') | « LayoutTests/crypto/subtle/hkdf-deriveBits-expected.txt ('k') | LayoutTests/crypto/subtle/hkdf-deriveBits-failures-expected.txt » ('j') | LayoutTests/crypto/subtle/hkdf-deriveKey.html » ('J')
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	1 <!DOCTYPE html>

	2 <html>

	3 <head>

	4 <script src="../../resources/js-test.js"></script>

	5 <script src="resources/common.js"></script>

	6 </head>

	7 <body>

	8 <p id="description"></p>

	9 <div id="console"></div>

	10

	11 <script>

	12 description("Test bad inputs to HKDF deriveBits()");

	13

	14 jsTestIsAsync = true;

	15

	16 kHkdfKey = "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b";

	17

	18 var extractable = true;

	19 Promise.resolve(null).then(function(result) {

	20 // set up the test by creating an HKDF key and an RSA key
	eroman 2014/12/23 23:29:39 This comment is incorrect This comment is incorrect nharper 2015/01/06 23:51:59 Done. Show quoted text On 2014/12/23 23:29:39, eroman wrote: > This comment is incorrect Done.
	21 return crypto.subtle.importKey("raw", hexStringToUint8Array(kHkdfKey), {name: "HKDF"}, extractable, ['deriveKey', 'deriveBits']);
	eroman 2014/12/23 23:29:39 4 space indentation throughout 4 space indentation throughout nharper 2015/01/06 23:51:59 Done. Show quoted text On 2014/12/23 23:29:39, eroman wrote: > 4 space indentation throughout Done.
	22 }).then(function(result) {

	23 hkdfKey = result;

	24

	25 return crypto.subtle.generateKey({name: "ECDH", namedCurve: "P-256"}, true, [' deriveBits']);

	26 }).then(function(result) {

	27 ecdhKey = result;

	28

	29 // Should throw a NotSupportedError if hash does not describe a recognized

	30 // algorithm that supports the digest operation.

	31 debug("\nderiveBits() with an unsupported hash...");

	32 return crypto.subtle.deriveBits({name: "HKDF", hash: "HMAC", salt: new Uint8Ar ray(), info: new Uint8Array()}, hkdfKey, 8);

	33 }).then(failAndFinishJSTest, function(result) {

	34 logError(result);

	35

	36 // Should throw an InvalidAccessError if key doesn't match the algorithm

	37 debug("\nderiveBits() with a key that doesn't match the algorithm...");

	38 return crypto.subtle.deriveBits({name: "HKDF", hash: "SHA-256", salt: new Uint 8Array(), info: new Uint8Array()}, ecdhKey.privateKey, 8);

	39 }).then(failAndFinishJSTest, function(result) {

	40 logError(result);

	41

	42 // Should throw an OperationError if the key derivation operation fails.

	43 // The key derivation operation will fail here because the length is too long.

	44 //

	45 // The maximum length (in bytes) of output material for HKDF is 255 times the

	46 // digest length. In this case, the digest length (in bytes) of SHA-256 is 32;

	47 // 32255 = 8160. deriveBits expects the length to be in bits, so 81608=65280

	48 // and add 1 to exceed the maximum length.

	49 debug("\nderiveBits() with requested length too long...");

	50 return crypto.subtle.deriveBits({name: "HKDF", hash: "SHA-256", salt: new Uint 8Array(), info: new Uint8Array()}, hkdfKey, 65281);

	51 }).then(failAndFinishJSTest, function(result) {

	52 logError(result);

	53

	54 // TODO: move this out of this file
	eroman 2014/12/23 23:29:39 (1) WebKit uses FIXME: style. (2) This seems like (1) WebKit uses FIXME: style. (2) This seems like it should be addressed now. This is not a failure. nharper 2015/01/06 23:51:59 Done. Show quoted text On 2014/12/23 23:29:39, eroman wrote: > (1) WebKit uses FIXME: style. > (2) This seems like it should be addressed now. This is not a failure. Done.
	55 // Create a key with only deriveKey usages.

	56 return crypto.subtle.importKey("raw", hexStringToUint8Array(kHkdfKey), {name: "HKDF"}, extractable, ['deriveKey']);

	57 }).then(function(result) {

	58 derivingKey = result;

	59

	60 return crypto.subtle.deriveKey({name: "HKDF", hash: "SHA-256", salt: new Uint8 Array(), info: new Uint8Array()}, derivingKey, {name: "AES-GCM", length: 256}, e xtractable, ['encrypt']);

	61 }).then(function(result) {

	62 derivedKey = result;

	63

	64 shouldEvaluateAs("derivedKey.type", "secret");

	65 shouldEvaluateAs("derivedKey.extractable", true);

	66 shouldEvaluateAs("derivedKey.algorithm.name", "AES-GCM");

	67 shouldEvaluateAs("derivedKey.usages.join(',')", "encrypt");

	68 }).then(finishJSTest, failAndFinishJSTest);

	69

	70 </script>

	71

	72 </body>

	73 </html>

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