How to convert SecByteBlock to string?

Question

I\'m having a problem trying to convert SecByteBlock to string. Here\'s my case:

I want to encrypt user access data using AES with static key and dynami

Answer 1

I'm having a problem trying to convert SecByteBlock to string

If the issue is with conversion from SecByteBlock and its byte array to a std::string and its char array, then you should:

SecByteBlock iv;
...

// C-style cast
std::string token = std::string((const char*)iv.data(), iv.size()) + userAccess;

Or,

SecByteBlock iv;
...

// C++-style cast
std::string token = std::string(reinterpret_cast(iv.data()), iv.size()) + userAccess;

You can also forgo the assignment, and just initialize and later append:

SecByteBlock iv;
...

std::string token(reinterpret_cast(iv.data()), iv.size());
...

std::string userAccess;
...

token += userAccess;

---

The other problem you might have is string to SecByteBlock. You should do this:

std::string str;
...

// C-style cast
SecByteBlock sbb((const byte*)str.data(), str.size());

Or:

std::string str;
...

// C++-style cast
SecByteBlock sbb(reinterpret_cast(str.data()), str.size());