mbedtls_poly1305_starts() function

The Poly1305 context to which the key should be bound. This must be initialized.

The buffer containing the \c 32 Byte (\c 256 Bit) key.

This function initializes the specified Poly1305 context. It must be the first API called before using the context. It is usually followed by a call to \c mbedtls_poly1305_starts(), then one or more calls to \c mbedtls_poly1305_update(), then one call to \c mbedtls_poly1305_finish(), then finally \c mbedtls_poly1305_free().

This function releases and clears the specified Poly1305 context.

This functions feeds an input buffer into an ongoing Poly1305 computation. It is called between \c mbedtls_cipher_poly1305_starts() and \c mbedtls_cipher_poly1305_finish(). It can be called repeatedly to process a stream of data.

This function generates the Poly1305 Message Authentication Code (MAC).