| Updated: October 28, 2024 | 
Update a signature digest
#include <qcrypto/qcrypto_plugin.h>
typedef int(* qcrypto_signature_op_update)(qcrypto_state_ctx_t *sctx,
            const uint8_t *data,
            size_t size);
QCRYPTO_R_EOK if successful or qcrypto_errno if an error occurred.