블록 암호 운영 모드 ( Block Cipher mode of operation )

그림 출처 [위키]

Electronic codebook (ECB)

ECB Encryption

ECB Encryption

ECB Decryption

Cipher block chaining (CBC)

CBC Encryption

CBC Decryption

Cipher feedback (CFB)

CFB Encryption

CFB Decryption

Output feedback (OFB)

OFB Encryption

OFB Decryption

Counter (CTR)

CTR Encryption

CTR Decryption

Galois/counter (GCM)

GCM

Counter with cipher block chaining message authentication code (CCM)