VirgilSignerBase.h

#ifndef VIRGIL_CRYPTO_SIGNER_BASE_H
#define VIRGIL_CRYPTO_SIGNER_BASE_H

#include "VirgilByteArray.h"
#include "foundation/VirgilHash.h"
#include "foundation/VirgilAsymmetricCipher.h"

namespace virgil { namespace crypto {

class VirgilSignerBase {
public:
    explicit VirgilSignerBase(
            foundation::VirgilHash::Algorithm hashAlgorithm = foundation::VirgilHash::Algorithm::SHA384);

    foundation::VirgilHash::Algorithm getHashAlgorithm() const;

    VirgilByteArray signHash(
            const VirgilByteArray& digest, const VirgilByteArray& privateKey,
            const VirgilByteArray& privateKeyPassword = VirgilByteArray());

    bool verifyHash(
            const VirgilByteArray& digest, const VirgilByteArray& signature,
            const VirgilByteArray& publicKey);

protected:
    VirgilByteArray packSignature(const VirgilByteArray& signature) const;

    VirgilByteArray unpackSignature(const VirgilByteArray& packedSignature);

private:
    virtual VirgilByteArray doSignHash(
            const VirgilByteArray& digest, const VirgilByteArray& privateKey,
            const VirgilByteArray& privateKeyPassword);

    virtual bool doVerifyHash(
            const VirgilByteArray& digest, const VirgilByteArray& signature, const VirgilByteArray& publicKey);

private:
    foundation::VirgilHash hash_;
    foundation::VirgilAsymmetricCipher pk_;
};

}}

#endif /* VIRGIL_CRYPTO_SIGNER_BASE_H */