We regulate a command - response pair for the encryption / decryption operation based on permutation code , combining rsa and md5 used in cos safety module , and bring forward a safety transmission process for documentation 并给排列码加密解密操作赋予相应的命令应答对，结合智能卡操作系统的安全模块中的rsa算法和md5算法，提出了使用这种数字签名卡进行文件安全传输的过程。
My work exams the realization of rsa algorithm , explains some important steps and its security in detail and sign the assess file by rsa algorithm in real estate evaluation s < tem in the end 本文研究了rsa算法的实现过程，并对其中的一些重要步骤及其安全性进行了详细的讨论。最后，在房地产评估系统中实现了通过用rsa算法对评估报告进行数字签名来验证报告的合法性和可靠性。
The idea key is encrypted and deciphered with rsa algorithm . in order to obtain high encode / decode rate , the basic algorithms are deeply optimized . so the processing speed and efficiency of rsa algorithm 其中系统中传输的idea加密密钥是经过rsa算法加密的,为得到较快的加解密速度,本文还对rsa算法中的基本算法进行了深层次的优化,大大提高了rsa算法实际应用时的运行速度和执行效率。
The permutation code encryption and its key management and digital signature by rsa contribute to the high intensity combination security algorithm which is verified by both theory analysis and simulation results with high running speed 理论和实验结果均表明，应用排列码算法加密明文数据并结合rsa算法进行密钥管理和数字签名可以得到加密强度很高的安全算法且算法的运行速度也很快。
It ' s worth notice that , because the efficiency of public - key cipher is low , we introduce symmetric cipher , permutation code , and asymmetric cipher , rsa algorithm into the system to advance the efficiency of the whole system 值得指出的是，由于公钥密码体制效率较低，所以该系统采用对称密码算法和公钥密码算法相结合，采用排列码加密解密算法和rsa算法相结合，充分利用两者的优点，弥补其不足。
Secondly , because the system is vulnerable in the process of key producing and signing , we apply a distributed rsa algorithm to the key producing process and adopt a structure of two - level secret shares storing the private key to improve its security 其次,根据系统在私钥产生和签名阶段易受攻击的特性,将分布式rsa算法应用到私钥的产生过程,并在签名过程中采用双层共享结构存储私钥,以提高私钥的安全性。
The author realized not only the security transmission of information using public key to encryption and private key to decryption , but also the encrypting digital signature and session key by private key to encryption and public key to decryption with the rsa algorithm 本文作者用rsa算法，不但实现了用公钥加密、私钥解密来保密传输的明文，而且用私钥加密、公钥解密实现了加密数字签名和会话密钥的功能。
It ' s basic principle : before transmitting data , we encrypt message with idea key and sign or encrypt idea key with rsa . when communicating , we encrypt voice payload with idea session key . when finished communications we destroy idea session key 其基本原理是：数据通信之前，用idea算法对消息明文加密，同时用rsa算法对idea密钥进行加密和实现数字签名。通信中，用idea会话密钥加密语音通讯数据。通信结束后，销毁会话密钥。
Fast implementation of the rsa public key algorithms is one of direction of current public key algorithm . the research of this paper has using value , improving the processing of encryption and decryption by fast implementation of modular exponentiation and modular multiplication algorithm Rsa算法的快速实现是现代密码学研究的方向之一,本文研究表明通过改进公钥密码体制中的模幂乘算法,可以进一步提高rsa的效率,具有一定的实用价值。
Signing occurs by using a public key algorithm , usually the rsa algorithm , which is a special type of cryptography consisting of two different but mathematically related keys : a private key for signing code and a public key for verifying the signed code 用公钥算法（通常是rsa算法）来进行签名，公钥算法是一种特殊类型的密码术，它包含两个不同的但在数学方面又是相关的密钥：一个私钥（用于签署代码）和一个公钥（用于验证经过签名的代码） 。
