Function crypto_generichash_init

pub fn crypto_generichash_init(
    key: Option<&[u8]>,
    outlen: usize,
) -> Result<GenericHashState, Error>

Initializes the state for the generic hash function using outlen for the expected hash output length, and optional key, returning it upon success.

Parameter	Typical length	Minimum length	Maximum length
outlen	CRYPTO_GENERICHASH_BYTES	CRYPTO_GENERICHASH_BYTES_MIN	CRYPTO_GENERICHASH_BYTES_MAX
key	CRYPTO_GENERICHASH_KEYBYTES	CRYPTO_GENERICHASH_KEYBYTES_MIN	CRYPTO_GENERICHASH_KEYBYTES_MAX

Equivalent to libsodium’s crypto_generichash_final