Feed more message bytes into a MAC computation.

Synopsis

Declared in <openssl/evp.h>

int
EVP_MAC_update(
    EVP_MAC_CTX* ctx,
    unsigned char const* data,
    size_t datalen);

Return Value

1 on success, or 0 on failure.

Parameters

Name

Description

ctx

MAC context previously initialised with EVP_MAC_init().

data

Message bytes to absorb.

datalen

Number of bytes at data.

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