c++ - Use of pointer to uint_8

Question

In the cryptographic library Botan we have the class Cipher_Mode and its method void set_key(const uint8_t *key, size_t length) that set the symmetric key to be used.

So here key is a pointer to an unsigned int of fixed width 8. However the key is supposed to be a little bigger. In the botan documentation keyis set as a const std::vector<uint8_t>.

If I understand well, we ask for a pointer to a key, and its length to get the positions of the first bit of the key and the length gives the information on where the key storage is stopped.

Is my interpretation right ?

question from:https://stackoverflow.com/questions/65871969/use-of-pointer-to-uint-8

Answer 1

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