https://bugs.webkit.org/show_bug.cgi?id=124059

Reviewed by Anders Carlsson.

Source/WebCore: 

Tests: crypto/subtle/aes-cbc-import-jwk.html
       crypto/subtle/hmac-import-jwk.html
       crypto/subtle/import-jwk.html

WebCrypto supports multiple key formats - raw, pkcs8, spki, jwk. The design is that
we'll transform these into parsed KeyData subclasses before passing to algorithms.

CryptoKeySerialization is a base class for handling all these formats.

* WebCore.xcodeproj/project.pbxproj: Added new files. Removed CryptoKeyFormat.h.
        
* bindings/js/JSCryptoKeySerializationJWK.h: Added.
* bindings/js/JSCryptoKeySerializationJWK.cpp: Added.
(WebCore::getStringFromJSON): A helper. Note that we can rely on the object being
a nice freshly parsed JSON, no getters or anything.
(WebCore::getBooleanFromJSON): Ditto.
(WebCore::JSCryptoKeySerializationJWK::JSCryptoKeySerializationJWK):
(WebCore::JSCryptoKeySerializationJWK::~JSCryptoKeySerializationJWK):
(WebCore::createHMACParameters): A simple helper.
(WebCore::JSCryptoKeySerializationJWK::reconcileAlgorithm): WebCrypto API is weird,
you can have algorithm parameters both inside a JWK key and passed as importKey()
arguments. They need to agree, whatever that means for specific serialization's
algorithm options (not all necessarily have a 1-1 matching to WebCrypto).
(WebCore::JSCryptoKeySerializationJWK::reconcileUsages): Take an intersection of usages.
(WebCore::JSCryptoKeySerializationJWK::reconcileExtractable): Only extractable if
both JWK and the caller agree.
(WebCore::JSCryptoKeySerializationJWK::keySizeIsValid): Verify validity of JWK key.
(WebCore::JSCryptoKeySerializationJWK::keyData): Return an appropriate KeyData
subclass.

* bindings/js/JSSubtleCryptoCustom.cpp:
(WebCore::ENUM_CLASS): Moved CryptoKeyFormat here.
(WebCore::cryptoKeyFormatFromJSValue): Added a human readable string to an exception.
(WebCore::JSSubtleCrypto::importKey): Support multiple key formats, not just raw.

* crypto/CryptoAlgorithm.cpp: (WebCore::CryptoAlgorithm::importKey):
* crypto/CryptoAlgorithm.h:
Updated signature for importKey to one that makes more sense. Decoding formats all
the way from a binary blob is not something that CryptoAlgorithm subclasses should
do, we now pass a KeyData subclass instead.
Removed exportKey/wrapKey/unwrapKey altogether, because I don't yet know what the
signatures will be.

* crypto/CryptoKeyData.h: Added.
(WebCore::CryptoKeyData::ENUM_CLASS):
(WebCore::CryptoKeyData::CryptoKeyData):
(WebCore::CryptoKeyData::~CryptoKeyData):
(WebCore::CryptoKeyData::format):
A base class for passing key material to algorithms. Currently, only one type is
supported, that being OctetSequence for secret keys. Keys for RSA and EC are more
complicated, and secret/public ones are different too.

* crypto/CryptoKeyFormat.h: Removed. There are too many key format classes
confusingly floating around, and this was only needed in one file for parsing.

* crypto/CryptoKeySerialization.h: Added.
Base class for handling raw/pkcs8/spki/jwk keys.

* crypto/algorithms/CryptoAlgorithmAES_CBC.cpp:
(WebCore::CryptoAlgorithmAES_CBC::importKey):
* crypto/algorithms/CryptoAlgorithmAES_CBC.h:
Updated to use CryptoKeyData.

* crypto/algorithms/CryptoAlgorithmHMAC.cpp:
(WebCore::CryptoAlgorithmHMAC::importKey):
* crypto/algorithms/CryptoAlgorithmHMAC.h:
Updated to use CryptoKeyData.

* crypto/keys/CryptoKeyDataOctetSequence.cpp: Added.
(WebCore::CryptoKeyDataOctetSequence::CryptoKeyDataOctetSequence):
(WebCore::CryptoKeyDataOctetSequence::~CryptoKeyDataOctetSequence):
* crypto/keys/CryptoKeyDataOctetSequence.h: Added.
(WebCore::asCryptoKeyDataOctetSequence):
* crypto/keys/CryptoKeySerializationRaw.cpp: Added.
(WebCore::CryptoKeySerializationRaw::CryptoKeySerializationRaw):
(WebCore::CryptoKeySerializationRaw::~CryptoKeySerializationRaw):
(WebCore::CryptoKeySerializationRaw::reconcileAlgorithm):
(WebCore::CryptoKeySerializationRaw::reconcileUsages):
(WebCore::CryptoKeySerializationRaw::reconcileExtractable):
(WebCore::CryptoKeySerializationRaw::keyData):
* crypto/keys/CryptoKeySerializationRaw.h: Added.
Much code to pass around a Vector<char>.

LayoutTests: 

* crypto/subtle/aes-cbc-import-jwk-expected.txt: Added.
* crypto/subtle/aes-cbc-import-jwk.html: Added.
* crypto/subtle/hmac-import-jwk-expected.txt: Added.
* crypto/subtle/hmac-import-jwk.html: Added.
* crypto/subtle/import-jwk-expected.txt: Added.
* crypto/subtle/import-jwk.html: Added.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@158943 268f45cc-cd09-0410-ab3c-d52691b4dbfc