)) } return newBlock(b, key), nil } func newBlockExpanded(c *blockExpanded, key []byte) { switch len(key) { case aes128KeySize: c.rounds = aes128Rounds case aes192KeySize: c.rounds = aes192Rounds case aes256KeySize: c.rounds = aes256Rounds } expandKeyGeneric(c, key) } func (c *Block) BlockSize() int { return BlockSize } func (c *Block) Encrypt(dst, src []byte) { // AES-ECB is not approved in FIPS 140-3 mode. fips140.RecordNonApproved() if len(src) < BlockSize { panic("crypto/aes: input not full block")...