给出一种有效的用于文本认证的脆弱型数字水印方案。通过提取文本的分块特征,结合密钥技术,该方案能够有效地检测文本是否被窜改,并能定位窜改发生的位置,从而可达到检验文本完整性的目的。而在作完整性检验时,该方案并不需要其他的辅助性认证数据。实验表明,该方案是一种比较有效的文本认证方案。
A new effective fragile text watermarking technique for text authentication is proposed. Our scheme can detect and locate the tampering of the text by combining the cryptography with the content-features extracted from the text. Furthermore, the scheme requires no additional authentication data to perform integrity verification. The experiment demonstrates the scheme is efficient for the authentication of text.