qcrypto_signature_sign_oneshot()

Updated: October 26, 2022

Sign a signature using a single operation

Synopsis:

#include <qcrypto/qcrypto.h>
int qcrypto_signature_sign_oneshot(qcrypto_ctx_t *ctx,
                                   const uint8_t *data,
                                   size_t size,
                                   uint8_t *sig,
                                   size_t *sigsize)

Arguments:

ctx
The algorithm context object.
data
The input data.
size
The input data size.
sig
The signature buffer.
sigsize
The combined size of the signature buffer and the retrieved signature.

Library:

libqcrypto

Description:

This function combines qcrypto_signature_update() and qcrypto_signature_sign() in one operation for cases where the data size is known in advance, it is small enough that it can be passed in a single operation, or both.

Returns:

QCRYPTO_R_EOK if successful or qcrypto_errno if an error occurred.