北京理工大学珠海学院 2020 届本科生毕业论文基于 LSB 图像之加密信息隐藏应用实现基于 LSB 图像之加密信息隐藏应用实现摘 要随着 Internet 的发展，人们越来越频繁的传递信息，在给人们带来便利的同时，也给人们的安全和隐私带来了隐患。从很久以前，人们就开始了解如何保护自己的信息，发展到现在，信息安全主要分为两方面，密码学和信息隐藏。本文在密码学这块的研究主要是 RSA 算法、AES 算法和 3DES 算法。RSA 是在 1977 年被提出来的，属于非对称加密算法，广泛用于公钥加密和电子商务中。而对于信息隐藏技术方面，本文主要研究 LSB 算法。LSB（LeastSignificant Bits）算法：一种常见的空间域数据隐藏算法，它替换了最低有效位以隐藏秘密信息。通过 LSB 算法隐藏的信息一般来说肉眼察觉不出来，能很好地的保护秘密信息。RSA 算法可以将信息加密成密文，而 LSB 算法可以将加密后的密文隐藏到图片之中，人们的肉眼根本分辨不出来，将两者结合起来，可以更有效的保护信息安全。关键词：加密，信息隐藏，LSB 算法，RSA 算法北京理工大学珠海学院 2020 届本科生毕业论文北京理工大学珠海学院 2020 届本科生毕业论文Implementation of encrypted information hiding based on LSB imageAbstractWith the development of the Internet, people are passing information more and more frequently, which brings convenience to people, but also brings hidden dangers to people's security and privacy. From a long time ago, people began to understand how to protect their own information. From now on, information security is mainly divided into two aspects, cryptography and information hiding. The research on cryptography in this article is mainly about RSA algorithm, AES algorithm and 3DES algorithm.RSA was introduced in 1977 and belongs to asymmetric encryption algorithm, which is widely used in public key encryption and e-commerce.As for the information hiding technology, this paper mainly studies the LSB algorithm.LSB (LeastSignificant Bits) algorithm: a common spatial data hiding algorithm, which replaces the l...
