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首页> 外文期刊>Journal of Computers >Watermarks and Text Transformations in Visual Document Authentication
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Watermarks and Text Transformations in Visual Document Authentication

机译:视觉文档身份验证的水印和文本转换

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—Integrity of digital documents is a very important issue if they are to be legally binding. Common solutions, like digital signatures or message authentication codes, are based on cryptography and require computers or similar hardware to be produced. They can be trusted only as long as the employed hardware can be trusted. We present a complementary scheme for document authentication in untrusted environment. The scheme combines visual authentication, human-recognizable watermarks, and image transformations, and is suitable also for larger text document. Because it relies on visual cryptography, it requires practically no computational power on the receiver side. To prevent potential attackers from obtaining signatures without author’s knowledge, we propose using a simple challenge-response protocol.
机译:如果他们要具有法律约束力,数字文件的乐观性是一个非常重要的问题。与数字签名或消息认证代码相同的常见解决方案基于密码学并需要产生计算机或类似的硬件。只要使用的硬件可以信任,它们就可以信任。我们在不受信任的环境中为文档认证提供了一种互补计划。该方案结合了视觉认证,人类可识别的水印和图像转换,并且还适用于较大的文本文档。因为它依赖于视觉加密,因此它实际上需要接收器侧没有计算电源。为了防止潜在的攻击者获得没有作者知识的签名,我们建议使用一个简单的挑战 - 响应协议。

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