Finish a CMAC and write the authentication tag (deprecated).

Synopsis

Declared in <openssl/cmac.h>

[[deprecated]]
int
CMAC_Final(
    CMAC_CTX* ctx,
    unsigned char* out,
    size_t* poutlen);
Warning

Deprecated. Use of this entity is allowed but discouraged.

Return Value

1 on success, or 0 on failure.

Parameters

Name

Description

ctx

CMAC context updated with CMAC_Update().

out

Buffer for the MAC (cipher block size), or NULL to query length only.

poutlen

On entry, capacity of out; on success, bytes written (or required).

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