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services/crypto/tests/unit/test_utils_hkdfExpand.js@4ab42b5ab56c (annotated)

services/crypto/tests/unit/test_utils_hkdfExpand.js

Wed, 31 Dec 2014 07:53:36 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 07:53:36 +0100

branch

TOR_BUG_3246

changeset 5

4ab42b5ab56c

permissions

-rw-r--r--

Correct small whitespace inconsistency, lost while renaming variables.

michael@0	1	/* Any copyright is dedicated to the Public Domain.
michael@0	2	* http://creativecommons.org/publicdomain/zero/1.0/ */
michael@0	3
michael@0	4	Cu.import("resource://services-common/utils.js");
michael@0	5	Cu.import("resource://services-crypto/utils.js");
michael@0	6
michael@0	7	// Test vectors from RFC 5869
michael@0	8
michael@0	9	// Test case 1
michael@0	10
michael@0	11	let tc1 = {
michael@0	12	IKM: "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b",
michael@0	13	salt: "000102030405060708090a0b0c",
michael@0	14	info: "f0f1f2f3f4f5f6f7f8f9",
michael@0	15	L: 42,
michael@0	16	PRK: "077709362c2e32df0ddc3f0dc47bba63" +
michael@0	17	"90b6c73bb50f9c3122ec844ad7c2b3e5",
michael@0	18	OKM: "3cb25f25faacd57a90434f64d0362f2a" +
michael@0	19	"2d2d0a90cf1a5a4c5db02d56ecc4c5bf" +
michael@0	20	"34007208d5b887185865"
michael@0	21	};
michael@0	22
michael@0	23	// Test case 2
michael@0	24
michael@0	25	let tc2 = {
michael@0	26	IKM: "000102030405060708090a0b0c0d0e0f" +
michael@0	27	"101112131415161718191a1b1c1d1e1f" +
michael@0	28	"202122232425262728292a2b2c2d2e2f" +
michael@0	29	"303132333435363738393a3b3c3d3e3f" +
michael@0	30	"404142434445464748494a4b4c4d4e4f",
michael@0	31	salt: "606162636465666768696a6b6c6d6e6f" +
michael@0	32	"707172737475767778797a7b7c7d7e7f" +
michael@0	33	"808182838485868788898a8b8c8d8e8f" +
michael@0	34	"909192939495969798999a9b9c9d9e9f" +
michael@0	35	"a0a1a2a3a4a5a6a7a8a9aaabacadaeaf",
michael@0	36	info: "b0b1b2b3b4b5b6b7b8b9babbbcbdbebf" +
michael@0	37	"c0c1c2c3c4c5c6c7c8c9cacbcccdcecf" +
michael@0	38	"d0d1d2d3d4d5d6d7d8d9dadbdcdddedf" +
michael@0	39	"e0e1e2e3e4e5e6e7e8e9eaebecedeeef" +
michael@0	40	"f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
michael@0	41	L: 82,
michael@0	42	PRK: "06a6b88c5853361a06104c9ceb35b45c" +
michael@0	43	"ef760014904671014a193f40c15fc244",
michael@0	44	OKM: "b11e398dc80327a1c8e7f78c596a4934" +
michael@0	45	"4f012eda2d4efad8a050cc4c19afa97c" +
michael@0	46	"59045a99cac7827271cb41c65e590e09" +
michael@0	47	"da3275600c2f09b8367793a9aca3db71" +
michael@0	48	"cc30c58179ec3e87c14c01d5c1f3434f" +
michael@0	49	"1d87"
michael@0	50	};
michael@0	51
michael@0	52	// Test case 3
michael@0	53
michael@0	54	let tc3 = {
michael@0	55	IKM: "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b",
michael@0	56	salt: "",
michael@0	57	info: "",
michael@0	58	L: 42,
michael@0	59	PRK: "19ef24a32c717b167f33a91d6f648bdf" +
michael@0	60	"96596776afdb6377ac434c1c293ccb04",
michael@0	61	OKM: "8da4e775a563c18f715f802a063c5a31" +
michael@0	62	"b8a11f5c5ee1879ec3454e5f3c738d2d" +
michael@0	63	"9d201395faa4b61a96c8"
michael@0	64	};
michael@0	65
michael@0	66	function sha256HMAC(message, key) {
michael@0	67	let h = CryptoUtils.makeHMACHasher(Ci.nsICryptoHMAC.SHA256, key);
michael@0	68	return CryptoUtils.digestBytes(message, h);
michael@0	69	}
michael@0	70
michael@0	71	function _hexToString(hex) {
michael@0	72	let ret = "";
michael@0	73	if (hex.length % 2 != 0) {
michael@0	74	return false;
michael@0	75	}
michael@0	76
michael@0	77	for (let i = 0; i < hex.length; i += 2) {
michael@0	78	let cur = hex[i] + hex[i + 1];
michael@0	79	ret += String.fromCharCode(parseInt(cur, 16));
michael@0	80	}
michael@0	81	return ret;
michael@0	82	}
michael@0	83
michael@0	84	function extract_hex(salt, ikm) {
michael@0	85	salt = _hexToString(salt);
michael@0	86	ikm = _hexToString(ikm);
michael@0	87	return CommonUtils.bytesAsHex(sha256HMAC(ikm, CryptoUtils.makeHMACKey(salt)));
michael@0	88	}
michael@0	89
michael@0	90	function expand_hex(prk, info, len) {
michael@0	91	prk = _hexToString(prk);
michael@0	92	info = _hexToString(info);
michael@0	93	return CommonUtils.bytesAsHex(CryptoUtils.hkdfExpand(prk, info, len));
michael@0	94	}
michael@0	95
michael@0	96	function hkdf_hex(ikm, salt, info, len) {
michael@0	97	ikm = _hexToString(ikm);
michael@0	98	if (salt)
michael@0	99	salt = _hexToString(salt);
michael@0	100	info = _hexToString(info);
michael@0	101	return CommonUtils.bytesAsHex(CryptoUtils.hkdf(ikm, salt, info, len));
michael@0	102	}
michael@0	103
michael@0	104	function run_test() {
michael@0	105	_("Verifying Test Case 1");
michael@0	106	do_check_eq(extract_hex(tc1.salt, tc1.IKM), tc1.PRK);
michael@0	107	do_check_eq(expand_hex(tc1.PRK, tc1.info, tc1.L), tc1.OKM);
michael@0	108	do_check_eq(hkdf_hex(tc1.IKM, tc1.salt, tc1.info, tc1.L), tc1.OKM);
michael@0	109
michael@0	110	_("Verifying Test Case 2");
michael@0	111	do_check_eq(extract_hex(tc2.salt, tc2.IKM), tc2.PRK);
michael@0	112	do_check_eq(expand_hex(tc2.PRK, tc2.info, tc2.L), tc2.OKM);
michael@0	113	do_check_eq(hkdf_hex(tc2.IKM, tc2.salt, tc2.info, tc2.L), tc2.OKM);
michael@0	114
michael@0	115	_("Verifying Test Case 3");
michael@0	116	do_check_eq(extract_hex(tc3.salt, tc3.IKM), tc3.PRK);
michael@0	117	do_check_eq(expand_hex(tc3.PRK, tc3.info, tc3.L), tc3.OKM);
michael@0	118	do_check_eq(hkdf_hex(tc3.IKM, tc3.salt, tc3.info, tc3.L), tc3.OKM);
michael@0	119	do_check_eq(hkdf_hex(tc3.IKM, undefined, tc3.info, tc3.L), tc3.OKM);
michael@0	120	}