Abstract: As an important branch of the information hiding technology, digital steganography is gaining more and more attention in Internet. This paper presents an arithmetic of digital steganography based on JPEG images, and discusses its anti-attack. The experimental datas show that the arithmetic suits for both JPEG-compressed format images and uncompressed format images to transport information securely, which can be enshrouded better.

Key words: information hiding, digital steganoraphy, secret communication, JPEG compression

摘要： 在互联网上，数字密写作为信息隐藏的一个重要分支倍受关注。该文提出了一种以JPEG图像为载体的数字密写算法，对其抗攻击性进行了讨论。实验数据表明，该算法适用于以JPEG压缩格式或非压缩格式图像传递秘密信息，且具有较高的隐蔽性。

关键词: 信息隐藏, 数字密写, 秘密通信, JPEG压缩

CLC Number: 

• TP391.41