internal static unsafe extern int crypto_auth_hmacsha512_update( crypto_auth_hmacsha512_state *state, SecureMemoryHandle @in, ulong inlen);
internal static unsafe extern int crypto_auth_hmacsha512_update( crypto_auth_hmacsha512_state *state, byte * @in, ulong inlen);
internal static unsafe extern int crypto_auth_hmacsha512_init( crypto_auth_hmacsha512_state *state, byte *key, UIntPtr keylen);
internal static unsafe extern int crypto_auth_hmacsha512_init( crypto_auth_hmacsha512_state *state, SecureMemoryHandle key, UIntPtr keylen);
internal static unsafe extern int crypto_auth_hmacsha512_final( crypto_auth_hmacsha512_state *state, byte * @out);