keys, 14 rounds, and uses 15 128-bit round keys // (15×128÷32 = 60 32-bit words). aes128KeySize = 16 aes192KeySize = 24 aes256KeySize = 32 aes128Rounds = 10 aes192Rounds = 12 aes256Rounds = 14 ) // roundKeysSize returns the number of uint32 of c.end or c.dec that are used. func (b *blockExpanded) roundKeysSize() int { return (b.rounds + 1) * (128 / 32) } type KeySizeError int func (k KeySizeError) Error() string { return "crypto/aes: invalid key size " + strconv.Itoa(int(k)) } // New creates and returns...