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首页> 外文期刊>International Journal of Computer Network and Information Security >Design of an Android Application for Secure Chatting
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Design of an Android Application for Secure Chatting

机译:用于安全聊天的Android应用程序的设计

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摘要

Smart phones have become an essential part in the life of the individuals and their priorities at the present time. The most prominent uses are in chatting and conversation applications. Most of these applications do not provide the required protection and privacy of the data exchanged between users. Yet there are very few mobile chat applications that provides an End-to-End (E2E) security and privacy-preserving service to their clients. In this paper, a secure chatting application with end to end encryption for smart phones that use the android OS has been proposed. The proposed application uses the ECDH algorithm to generate the key pair and exchange to produce the shared key that will be used for the encryption of data by symmetric algorithms. The proposed Application allows the users to communicate via text messages, voice messages, as well as exchange photos. For the text message security the standard AES algorithm with a 128 bit key is used. The generated key (160 bit) minimized to 128 bit length in order to be used by the AES algorithm. For the voice and image security processes the proposed application uses the symmetric algorithm RC4 for this purpose. RC4 provides less security than AES, but it performs faster and this is required for such types and sizes of data.
机译:目前,智能电话已成为个人生活及其优先事项的重要组成部分。最突出的用途是在聊天和对话应用程序中。这些应用程序中的大多数都没有为用户之间交换的数据提供所需的保护和隐私。但是,很少有移动聊天应用程序可以为其客户提供端到端(E2E)安全和隐私保护服务。在本文中,已经提出了一种安全的聊天应用程序,该应用程序具有使用Android OS的智能手机的端到端加密功能。提出的应用程序使用ECDH算法生成密钥对,并进行交换以生成共享密钥,该共享密钥将用于对称算法进行数据加密。所提出的应用程序允许用户通过文本消息,语音消息以及交换照片进行通信。为了确保文本消息的安全,使用了具有128位密钥的标准AES算法。生成的密钥(160位)最小化为128位长度,以便由AES算法使用。对于语音和图像安全过程,建议的应用为此目的使用对称算法RC4。 RC4提供的安全性低于AES,但是它的执行速度更快,这对于此类类型和大小的数据是必需的。

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