1)대칭키 암호화

. DES(Data Encryption Standard)

. AES(Advanced Encryption Standard)

. IDEA(International Data Encryption Algorithm)

. SEED

. ARIA(Academy, Research Institute, Agency)

. RC5

2)공개키 암호화

. RSA(Rivest Shamir Adleman)

. ECC(Elliptic Curve Crypto)

. DSA(Digital Signature Algorithm)

3)해시암호

. MD(Message Digest)

. SHA(Secure Hash Algorithm)