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cppcms::crypto::hmac Class Reference

This object calculates the HMAC signature for the input data. More...

`#include <cppcms/crypto.h>`

Inheritance diagram for cppcms::crypto::hmac:

## Public Member Functions
| hmac (std::auto_ptr< message_digest > digest, key const &k)
| hmac (std::string const &name, key const &k)
unsigned | digest_size () const
void | append (void const *ptr, size_t size)
void | readout (void *ptr)

## Detailed Description

This object calculates the HMAC signature for the input data.

## Constructor & Destructor Documentation

cppcms::crypto::hmac::hmac | ( | std::auto_ptr< message_digest > | digest,
|  | key const & | k
| ) |  |

Create hmac that uses given digest algorithm and a binary key - key

cppcms::crypto::hmac::hmac | ( | std::string const & | name,
|  | key const & | k
| ) |  |

Create hmac that uses message digest algorithm called name and use a binary key - key

## Member Function Documentation

void cppcms::crypto::hmac::append | ( | void const * | ptr,
|  | size_t | size
| ) |  |

Add data for signing

unsigned cppcms::crypto::hmac::digest_size | ( |  | ) | const

Get the size of the signtature

void cppcms::crypto::hmac::readout | ( | void * | ptr | ) |

Get the signature for all the data, after calling this function the state of the hmac is reset and it can be used for signing again

Note: provided buffer must be digest_size() bytes long.

The documentation for this class was generated from the following file:

- cppcms/crypto.h