This cryptosystem can actively protect against the chosen plaintext and the various chosen ciphertext attacks including IND-CCA2 attacks.It achieves the same security like One-Time-Pad.

• 该安全方案可以主动抵御选择明文攻击与各种选择密文攻击，包括IND-CCA2，并且可以达到类似一次一密的安全效果。