One byte of cipher text is generated for every byte of plain text contained in the message.

对包含在信息中的普通文本的每一个字节产生密码文本的一个字节。

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Chaotic stream cipher scheme: good binary sequences are generated using chaotic system, and after performance tests the sequences are applied to encrypt images and speech signals.

混沌流密码加密方案：利用时空混沌系统产生伪随机性能良好的二值序列，并通过了一系列性能检测，实现了对图像和语音文件的流密码加密。

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Absrtact: the security of stream cipher, which is known as one of the main cipher techniques, dependents completely on the quality of generated pseudo - stochastic sequences.

摘要：作为主要密码技术之一的序列密码，它的安全强度完全取决于其所产生的伪随机序列的好坏。

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