boost: code movement only: split CECKey into separate files

src/ecwrapper.h

@@ -0,0 +1,46 @@
+// Copyright (c) 2009-2014 The Bitcoin developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_EC_WRAPPER_H
+#define BITCOIN_EC_WRAPPER_H
+
+#include <cstddef>
+#include <vector>
+
+#include <openssl/ec.h>
+
+class uint256;
+
+// RAII Wrapper around OpenSSL's EC_KEY
+class CECKey {
+private:
+    EC_KEY *pkey;
+
+public:
+    CECKey();
+    ~CECKey();
+
+    void GetSecretBytes(unsigned char vch[32]) const;
+    void SetSecretBytes(const unsigned char vch[32]);
+    int GetPrivKeySize(bool fCompressed);
+    int GetPrivKey(unsigned char* privkey, bool fCompressed);
+    bool SetPrivKey(const unsigned char* privkey, size_t size, bool fSkipCheck=false);
+    void GetPubKey(std::vector<unsigned char>& pubkey, bool fCompressed);
+    bool SetPubKey(const unsigned char* pubkey, size_t size);
+    bool Sign(const uint256 &hash, std::vector<unsigned char>& vchSig, bool lowS);
+    bool Verify(const uint256 &hash, const std::vector<unsigned char>& vchSig);
+    bool SignCompact(const uint256 &hash, unsigned char *p64, int &rec);
+
+    // reconstruct public key from a compact signature
+    // This is only slightly more CPU intensive than just verifying it.
+    // If this function succeeds, the recovered public key is guaranteed to be valid
+    // (the signature is a valid signature of the given data for that key)
+    bool Recover(const uint256 &hash, const unsigned char *p64, int rec);
+
+    static bool TweakSecret(unsigned char vchSecretOut[32], const unsigned char vchSecretIn[32], const unsigned char vchTweak[32]);
+    bool TweakPublic(const unsigned char vchTweak[32]);
+    static bool SanityCheck();
+};
+
+#endif