VirgilAsn1Reader.h

#ifndef VIRGIL_CRYPTO_VIRGIL_ASN1_READER_H
#define VIRGIL_CRYPTO_VIRGIL_ASN1_READER_H

#include <cstdlib>
#include <string>

#include <virgil/crypto/VirgilByteArray.h>

namespace virgil { namespace crypto { namespace foundation { namespace asn1 {

class VirgilAsn1Reader {
public:
    VirgilAsn1Reader();

    explicit VirgilAsn1Reader(const virgil::crypto::VirgilByteArray& data);

    ~VirgilAsn1Reader() noexcept;

    void reset(const virgil::crypto::VirgilByteArray& data);


    int readInteger();

    bool readBool();

    void readNull();

    virgil::crypto::VirgilByteArray readOctetString();

    virgil::crypto::VirgilByteArray readUTF8String();

    virgil::crypto::VirgilByteArray readData();

    size_t readContextTag(unsigned char tag);

    std::string readOID();


    size_t readSequence();

    size_t readSet();
public:
    VirgilAsn1Reader(const VirgilAsn1Reader& other) = delete;

    VirgilAsn1Reader& operator=(const VirgilAsn1Reader& rhs) = delete;

    VirgilAsn1Reader(VirgilAsn1Reader&& other) = default;

    VirgilAsn1Reader& operator=(VirgilAsn1Reader&& rhs) = default;

private:
    void checkState();

private:
    unsigned char* p_;
    const unsigned char* end_;
    virgil::crypto::VirgilByteArray data_;
};

}}}}

#endif /* VIRGIL_CRYPTO_VIRGIL_ASN1_READER_H */