DOKK / manpages / debian 11 / libkcapi-dev / kcapi_aead_ccm_nonce_to_iv.3.en
KCAPI_AEAD_CCM_NONCE(3) Programming Interface KCAPI_AEAD_CCM_NONCE(3)

kcapi_aead_ccm_nonce_to_iv - convert CCM nonce into IV

int kcapi_aead_ccm_nonce_to_iv(const uint8_t * nonce, uint32_t noncelen, uint8_t ** iv, uint32_t * ivlen);

nonce

[in] buffer with nonce

noncelen

[in] length of nonce

iv

[out] newly allocated buffer with IV

ivlen

[out] length of IV

This service function converts a CCM nonce value into an IV usable by the kernel crypto API.

Caller must free iv.

return 0 upon success; < 0 upon failure

Stephan Mueller <smueller@chronox.de>

Author.

November 2020 libkcapi Manual 1.2.1