Source/modules/crypto/NormalizeAlgorithm.h - Issue 255453002: [refactor] Use a lookup table rather than binary search for algorithm normalization.

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Issue 255453002: [refactor] Use a lookup table rather than binary search for algorithm normalization. (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Created 6 years, 8 months ago

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1 /*	1 /*

2 * Copyright (C) 2013 Google Inc. All rights reserved.	2 * Copyright (C) 2013 Google Inc. All rights reserved.

3 *	3 *

4 * Redistribution and use in source and binary forms, with or without	4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions are	5 * modification, are permitted provided that the following conditions are

6 * met:	6 * met:

7 *	7 *

8 * * Redistributions of source code must retain the above copyright	8 * * Redistributions of source code must retain the above copyright

9 * notice, this list of conditions and the following disclaimer.	9 * notice, this list of conditions and the following disclaimer.

10 * * Redistributions in binary form must reproduce the above	10 * * Redistributions in binary form must reproduce the above

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25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

29 */	29 */

30	30

31 #ifndef NormalizeAlgorithm_h	31 #ifndef NormalizeAlgorithm_h

32 #define NormalizeAlgorithm_h	32 #define NormalizeAlgorithm_h

33	33

34 #include "public/platform/WebCryptoAlgorithm.h"	34 #include "public/platform/WebCryptoAlgorithm.h"

	35 #include "public/platform/WebCryptoKey.h"

35 #include "wtf/Assertions.h"	36 #include "wtf/Assertions.h"

36 #include "wtf/Forward.h"	37 #include "wtf/Forward.h"

37	38

38 namespace blink { class WebCryptoAlgorithm; }	39 namespace blink { class WebCryptoAlgorithm; }

39	40

40 namespace WebCore {	41 namespace WebCore {

41	42

42 class CryptoResult;	43 class CryptoResult;

43 class Dictionary;	44 class Dictionary;

44	45

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67 // On failure parseAlgorithm returns false and completes the CryptoResult	68 // On failure parseAlgorithm returns false and completes the CryptoResult

68 // with a (non-localized) debug string.	69 // with a (non-localized) debug string.

69 //	70 //

70 // [1] http://www.w3.org/TR/WebCryptoAPI/#algorithm-normalizing-rules	71 // [1] http://www.w3.org/TR/WebCryptoAPI/#algorithm-normalizing-rules

71 bool parseAlgorithm(const Dictionary&, AlgorithmOperation, blink::WebCryptoAlgor ithm&, CryptoResult*) WARN_UNUSED_RETURN;	72 bool parseAlgorithm(const Dictionary&, AlgorithmOperation, blink::WebCryptoAlgor ithm&, CryptoResult*) WARN_UNUSED_RETURN;

72	73

73 // Returns a null-terminated C-string literal. Caller can assume the pointer	74 // Returns a null-terminated C-string literal. Caller can assume the pointer

74 // will be valid for the program's entire runtime.	75 // will be valid for the program's entire runtime.

75 const char* algorithmIdToName(blink::WebCryptoAlgorithmId);	76 const char* algorithmIdToName(blink::WebCryptoAlgorithmId);

76	77

	78 // Returns true if the key usages are valid for creating keys for the given

	79 // algorithm. Otherwise returns false and sets an error on the result.

	80 bool verifyUsagesAreConsistentForAlgorithm(blink::WebCryptoAlgorithmId, blink::W ebCryptoKeyUsageMask, CryptoResult*);

	81

77 } // namespace WebCore	82 } // namespace WebCore

78	83

79 #endif	84 #endif

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