add SHA-224

git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@191 57ff6487-cd31-0410-9ec3-f628ee90f5f0

1 files changed, 9 insertions, 0 deletions

diff --git a/sha.h b/sha.h
index efe5350..e0ac2ea 100644
--- a/sha.h
+++ b/sha.h
@@ -28,6 +28,15 @@ protected:
 	static const word32 K[64];
 };
 
+//! implements the SHA-224 standard
+class SHA224 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, 32, SHA224, 28>
+{
+public:
+	static void InitState(HashWordType *state);
+	static void Transform(word32 *digest, const word32 *data) {SHA256::Transform(digest, data);}
+	static const char *StaticAlgorithmName() {return "SHA-224";}
+};
+
 #ifdef WORD64_AVAILABLE
 
 //! implements the SHA-512 standard