ocrypto_poly1305_final()

void ocrypto_poly1305_final	(	ocrypto_poly1305_ctx *	ctx,
		uint8_t	r[(16)] )

#include <crypto/nrf_oberon/include/ocrypto_poly1305.h>

Poly1305 generator output.

The generator state ctx is updated to finalize the authenticator for the previously processed message chunks. The authentication tag is put into r.

Parameters

	ctx	Generator state.
[out]	r	Generated authentication tag.

Remarks

Initialization of the generator state ctx through ocrypto_poly1305_init is required before this function can be called.

After return, the generator state ctx must no longer be used with ocrypto_poly1305_update and ocrypto_poly1305_final unless it is reinitialized using ocrypto_poly1305_init.