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PBKDF2 allows zero length and returns and empty string #49045

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PBKDF2 allows zero length and returns and empty string #49045

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4 changes: 2 additions & 2 deletions WebCryptoAPI/derive_bits_keys/derived_bits_length_testcases.js
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@ var testCases = {
{length: 256, expected: algorithms["HKDF"].derivation},
{length: 384, expected: algorithms["HKDF"].derivation384},
{length: 230, expected: undefined}, // should throw an exception, not multiple of 8
{length: 0, expected: undefined}, // explicitly disallowed, so should throw
{length: 0, expected: emptyArray},
{length: null, expected: undefined }, // should throw an exception
{length: undefined, expected: undefined }, // should throw an exception
{length: "omitted", expected: undefined }, // default value is null, so should throw
Expand All @@ -12,7 +12,7 @@ var testCases = {
{length: 256, expected: algorithms["PBKDF2"].derivation},
{length: 384, expected: algorithms["PBKDF2"].derivation384},
{length: 230, expected: undefined}, // should throw an exception, not multiple of 8
{length: 0, expected: undefined}, // explicitly disallowed, so should throw
{length: 0, expected: emptyArray},
{length: null, expected: undefined }, // should throw an exception
{length: undefined, expected: undefined }, // should throw an exception
{length: "omitted", expected: undefined }, // default value is null, so should throw
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10 changes: 0 additions & 10 deletions WebCryptoAPI/derive_bits_keys/pbkdf2.js
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Expand Up @@ -103,16 +103,6 @@ function define_tests() {

});

// 0 length (OperationError)
subsetTest(promise_test, function(test) {
return subtle.deriveBits({name: "PBKDF2", salt: salts[saltSize], hash: hashName, iterations: parseInt(iterations)}, baseKeys[passwordSize], 0)
.then(function(derivation) {
assert_unreached("0 length should have thrown an OperationError");
}, function(err) {
assert_equals(err.name, "OperationError", "deriveBits with 0 length correctly threw OperationError: " + err.message);
});
}, testName + " with 0 length");

// length not multiple of 8 (OperationError)
subsetTest(promise_test, function(test) {
return subtle.deriveBits({name: "PBKDF2", salt: salts[saltSize], hash: hashName, iterations: parseInt(iterations)}, baseKeys[passwordSize], 44)
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