https://bugs.webkit.org/show_bug.cgi?id=124335

Reviewed by Sam Weinig.

Source/WebCore:

Test: crypto/subtle/rsassa-pkcs1-v1_5-sign-verify.html

* WebCore.xcodeproj/project.pbxproj: Added new files, removed Mac SHA algorithm files.

* crypto/CryptoAlgorithmRSASSA_PKCS1_v1_5Mac.cpp:
(WebCore::getCommonCryptoDigestAlgorithm):
(WebCore::CryptoAlgorithmRSASSA_PKCS1_v1_5::sign):
(WebCore::CryptoAlgorithmRSASSA_PKCS1_v1_5::verify):
Implemented. These take two steps, first a digest is computed, and then it's signed.

* crypto/CryptoDigest.h: Added.
* crypto/mac/CryptoDigestMac.cpp: Added.
(WebCore::CryptoDigest::CryptoDigest):
(WebCore::CryptoDigest::~CryptoDigest):
(WebCore::CryptoDigest::create):
(WebCore::CryptoDigest::addBytes):
(WebCore::CryptoDigest::computeHash):
Added a cross-platform interface and Mac implementation to compute a digest. It
should be possible to use it outside WebCrypto if we need to (perhaps even merge
with  WTF SHA-1 class).
The Mac implementation is kind of ugly, but at least it encapsulates the ugliness.

* crypto/algorithms/CryptoAlgorithmSHA1.cpp: (WebCore::CryptoAlgorithmSHA1::digest):
* crypto/algorithms/CryptoAlgorithmSHA224.cpp: (WebCore::CryptoAlgorithmSHA224::digest):
* crypto/algorithms/CryptoAlgorithmSHA256.cpp: (WebCore::CryptoAlgorithmSHA256::digest):
* crypto/algorithms/CryptoAlgorithmSHA384.cpp: (WebCore::CryptoAlgorithmSHA384::digest):
* crypto/algorithms/CryptoAlgorithmSHA512.cpp: (WebCore::CryptoAlgorithmSHA512::digest):
* crypto/mac/CryptoAlgorithmSHA1Mac.cpp: Removed.
* crypto/mac/CryptoAlgorithmSHA224Mac.cpp: Removed.
* crypto/mac/CryptoAlgorithmSHA256Mac.cpp: Removed.
* crypto/mac/CryptoAlgorithmSHA384Mac.cpp: Removed.
* crypto/mac/CryptoAlgorithmSHA512Mac.cpp: Removed.
These are all cross-platform now.

LayoutTests:

* crypto/subtle/rsassa-pkcs1-v1_5-sign-verify-expected.txt: Added.
* crypto/subtle/rsassa-pkcs1-v1_5-sign-verify.html: Added.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@159292 268f45cc-cd09-0410-ab3c-d52691b4dbfc