| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/js-test.js"></script> |
| <script src="resources/common.js"></script> |
| </head> |
| <body> |
| <p id="description"></p> |
| <div id="console"></div> |
| |
| <script> |
| description("Test deriving HKDF keys with deriveKey()"); |
| |
| jsTestIsAsync = true; |
| |
| var derivingKeyAlgorithm = { |
| name: "HKDF", |
| hash: "SHA-256", |
| salt: new Uint8Array(), |
| info: new Uint8Array() |
| }; |
| |
| var privateKeyJSON = { |
| "kty": "EC", |
| "crv": "P-256", |
| "d": "1mGcHOo_eTxXMTgSjWLLa5DCZIf0o8NNySooVNefCIw", |
| "x": "QcD58SaUjtYiUaUnTaOMWC7YKyfQ5yD0-8F9RStayBU", |
| "y": "CjHmp9BL54FleRbhJVQb1MgVu5YsFn7tJt0VWof_jj0" |
| }; |
| |
| var publicKeyJSON = { |
| "kty": "EC", |
| "crv": "P-256", |
| "x": "AGzVMZDcNVrG7e8m9bLFTy7Si7o1IcU-SNyI8_Up62E", |
| "y": "bSVna0fR_BTIgH5--cEXXgOB3J2IlxKTmb8YeOZ7UKE" |
| }; |
| |
| var secret = hexStringToUint8Array("82b17497eefdeee07fb108496b1e88b1975e42a98046b5521d18edc96a639fea"); |
| |
| var hkdfAlgorithm = { |
| name: "HKDF", |
| hash: "SHA-256", |
| salt: new Uint8Array(), |
| info: new Uint8Array() |
| } |
| |
| Promise.resolve(null).then(function(result) { |
| return crypto.subtle.importKey("jwk", privateKeyJSON, {name: "ECDH", namedCurve: "P-256"}, true, ["deriveKey"]); |
| }).then(function(result) { |
| privateKey = result; |
| |
| return crypto.subtle.importKey("jwk", publicKeyJSON, {name: "ECDH", namedCurve: "P-256"}, true, []); |
| }).then(function(result) { |
| publicKey = result; |
| |
| debug("Derive an HKDF key from ECDH keys"); |
| return crypto.subtle.deriveKey({name: "ECDH", namedCurve: "P-256", public: publicKey}, privateKey, "HKDF", false, ['deriveKey', 'deriveBits']); |
| }).then(function(result) { |
| hkdfKey = result; |
| |
| shouldEvaluateAs("hkdfKey.algorithm.name", "HKDF"); |
| shouldEvaluateAs("hkdfKey.extractable", false); |
| shouldEvaluateAs("hkdfKey.usages.join(',')", "deriveKey,deriveBits"); |
| |
| debug("\nDerive 128 bits from the HKDF key"); |
| return crypto.subtle.deriveBits(hkdfAlgorithm, hkdfKey, 128); |
| }).then(function(result) { |
| derivedBits = result; |
| |
| return crypto.subtle.importKey("raw", secret, hkdfAlgorithm, false, ['deriveBits']); |
| }).then(function(hkdfKey) { |
| return crypto.subtle.deriveBits(hkdfAlgorithm, hkdfKey, 128); |
| }).then(function(result) { |
| expectedDerivedBits = result; |
| |
| shouldEvaluateAs("bytesToHexString(derivedBits)", bytesToHexString(expectedDerivedBits)); |
| }).then(finishJSTest, failAndFinishJSTest); |
| |
| </script> |
| |
| </body> |
| </html> |
