Name
crypto_aead_authsize —
obtain maximum authentication data size
Synopsis
unsigned int crypto_aead_authsize ( | struct crypto_aead * tfm); |
Description
The maximum size of the authentication data for the AEAD cipher referenced
by the AEAD cipher handle is returned. The authentication data size may be
zero if the cipher implements a hard-coded maximum.
The authentication data may also be known as “tag value”.
Return
authentication data size / tag size in bytes