确保充分健全的加密算法，比如三重 DES 或者 AES，用来加密所有存储在系统上的机密信息。
Ensure that a sufficiently robust encryption algorithm, such as triple DES or AES, is used to encrypt all confidential information stored on the system.
另一个流行的秘密密钥加密系统是国际数据加密算法(IDEA)。
Another popular secret-key cryptosystem is the International Data Encryption Algorithm (IDEA).
考虑到图像数据量大的特点，传统加密算法无法满足系统要求，我们提出了一种基于混沌序列的图像加密算法。
Considering the characteristic of huge image data, traditional encryption algorithm can't satisfy system's demand, so we bring forward a image encryption algorithm based on chaotic sequences.
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