SHA384_BLOCK_LENGTH
SHA384_BLOCK_LENGTH,
#if !defined(SHA384_BLOCK_LENGTH) && defined(SHA512_HMAC_BLOCK_SIZE)
void SHA384Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]);
#define SHA384_SHORT_BLOCK_LENGTH (SHA384_BLOCK_LENGTH - 16)
uint8_t buf[SHA384_BLOCK_LENGTH];
SHA384_Update(&ctx, in, SHA384_BLOCK_LENGTH);