ocrypto_cshake256_final()

void ocrypto_cshake256_final	(	ocrypto_cshake_ctx *	ctx,
		uint8_t *	r,
		size_t	r_len )

cSHAKE256 output.

The generator state ctx is updated to finalize the hash for the previously processed message chunks. The variable length output is put into r.

Parameters

	ctx	Generator state.
[out]	r	Generated hash value.
	r_len	Length of r. May be 0.

Remarks

Initialization of the generator state ctx through ocrypto_cshake256_init is required before this function can be called.

After return, the generator state ctx must no longer be used with ocrypto_cshake256_update and ocrypto_cshake256_final but can still be used with ocrypto_cshake256_ext to generate more output.