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CRYPTO_AEAD_AUTHSIZE(9) | Programming Interface | CRYPTO_AEAD_AUTHSIZE(9) |
NAME¶
crypto_aead_authsize - obtain maximum authentication data size
SYNOPSIS¶
unsigned int crypto_aead_authsize(struct crypto_aead * tfm);
ARGUMENTS¶
tfm
cipher handle
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
AUTHORS¶
Stephan Mueller <smueller@chronox.de>
Author.
Marek Vasut <marek@denx.de>
Author.
COPYRIGHT¶
January 2017 | Kernel Hackers Manual 4.8. |