公开密钥加密过程 ◆季 15 Bobs's public key ring Joy Ted Mike Alice Alice's public Alice's private key key Transmitted ciphertext Plaintext Plaintext input Encryption algorithm Decryption algorithm output (e.g.,RSA) (reverse of encryption algorithm) (a)Eneryption 2022/10/9 现代密码学理论与实践-09 6/342022/10/9 现代密码学理论与实践-09 6/34 公开密钥加密过程