论文标题
可逆数据隐藏在加密文本中使用Paillier Cryptosystem
Reversible Data Hiding in Encrypted Text Using Paillier Cryptosystem
论文作者
论文摘要
隐藏在加密域（RDHED）中的可逆数据是一种创新的方法，它可以保持封面信息的秘密并允许数据隐藏式隐范将其他信息插入其中。本文在加密的文本中介绍了一种新颖的数据隐藏技术，称为可逆数据隐藏在加密文本（RDHET）中。最初，原始文本转换为其ASCII值。之后，采用Paillier密码系统来加密原始文本的所有ASCII值，并将其发送给数据HIDER以进行进一步处理。在数据隐藏阶段，使用不会丢失任何信息的技术，即Paillier Cryptosystem的同构属性，将秘密数据嵌入了同质加密的文本中。最后，嵌入式的秘密数据和原始文本在接收端恢复而不会造成任何损失。实验结果表明，在基于云的服务的加密文本处理的背景下，提出的方案至关重要。此外，该方案效果很好，尤其是对于嵌入阶段，文本恢复和不同安全密钥尺寸的性能。
Reversible Data Hiding in Encrypted Domain (RDHED) is an innovative method that can keep cover information secret and allows the data hider to insert additional information into it. This article presents a novel data hiding technique in an encrypted text called Reversible Data Hiding in Encrypted Text (RDHET). Initially, the original text is converted into their ASCII values. After that, the Paillier cryptosystem is adopted to encrypt all ASCII values of the original text and send it to the data hider for further processing. At the data hiding phase, the secret data are embedded into homomorphically encrypted text using a technique that does not lose any information, i.e., the homomorphic properties of the Paillier cryptosystem. Finally, the embedded secret data and the original text are recovered at the receiving end without any loss. Experimental results show that the proposed scheme is vital in the context of encrypted text processing at cloud-based services. Moreover, the scheme works well, especially for the embedding phase, text recovery, and performance on different security key sizes.
