lib

type AESEncryptorImpl struct{}

type AESEncryptorInterface interface {
	ECB(key, val []byte) ([]byte, error)  // aes encrypt electronic codebook book (ECB)
	DECB(key, val []byte) ([]byte, error) // aes decrypt electronic codebook book (ECB)
	ECBGenerateKey(key []byte) []byte     // aes electronic codebook book generte key

	CBC(key, val []byte) ([]byte, error)  // aes encrypt cipher block chaining (CBC)
	DCBC(key, val []byte) ([]byte, error) // aes decrypt cipher block chaining (DCBC)

	CRT(key, val []byte) ([]byte, error) // aes encrypt or decrypt counter (CTR)

	CFB(key, val []byte) ([]byte, error)  // aes encrypt cipher feedback (CFB)
	DCFB(key, val []byte) ([]byte, error) // aes decrypt cipher feedback (CFB)

	OFB(key, val []byte) ([]byte, error)  // aes encrypt output FeedBack (OFB)
	DOFB(key, val []byte) ([]byte, error) // aes decrypt output FeedBack (OFB)

}

type DESEncryptorImpl struct{}

type DESEncryptorInterface interface {
	ECB(key, val []byte) ([]byte, error)  // des encrypt electronic codebook book (ECB)
	DECB(key, val []byte) ([]byte, error) // des decrypt electronic codebook book (ECB)

	CBC(key, val []byte) ([]byte, error)  // des encrypt cipher block chaining (CBC)
	DCBC(key, val []byte) ([]byte, error) // des decrypt cipher block chaining (DCBC)

	CRT(key, val []byte) ([]byte, error) // des encrypt or decrypt counter (CTR)

	CFB(key, val []byte) ([]byte, error)  // des encrypt cipher feedback (CFB)
	DCFB(key, val []byte) ([]byte, error) // des decrypt cipher feedback (CFB)

	OFB(key, val []byte) ([]byte, error)  // des encrypt output FeedBack (OFB)
	DOFB(key, val []byte) ([]byte, error) // des decrypt output FeedBack (OFB)
}

type EncryptorImpl struct{}

type EncryptorInterface interface {
	MD5(val string) string    // val to md5
	Sha1(val string) string   // val to sha1
	Sha256(val string) string // val to sha256
	Sha512(val string) string // val to sha512

	CRC32(val string) uint32 // val to crc32

	Hmac(key, val string) string       // val to hmac
	HmacSha256(key, val string) string // val to hmac sha256
}

type PKCSImpl struct{}

type PKCSInterface interface {
	Padding(val []byte, blockSize int) []byte // pkcs padding
	UnPadding(val []byte) []byte              // pkcs unpadding
}