论文标题
嵌入式区块链：区块链的合成，传播谱图水印，感知散列和数字签名
Embedded Blockchains: A Synthesis of Blockchains, Spread Spectrum Watermarking, Perceptual Hashing & Digital Signatures
论文作者
论文摘要
在本文中，我们介绍了一种检测操纵音频和视频的方案。该方案是区块链，加密的扩散光谱水印，感知哈希和数字签名的合成，我们称之为嵌入式区块链。在该方案中，我们将区块链用于其密码链接列表的数据结构，密码学散列，以进行绝对比较，感知散列，用于灵活比较，用于所有权证明证明的数字签名以及加密的传播频谱水印，将区块链嵌入媒体的背景噪声中。因此，每个媒体录制都有其自己独特的区块链，每个块持有信息都描述了媒体细分。验证媒体完整性的问题是重新铸造，以穿越介质的区块链，划分和细分市场。如果任何链被打破，则使用计算和提取的感知哈希的差异来估计操纵水平。
In this paper we introduce a scheme for detecting manipulated audio and video. The scheme is a synthesis of blockchains, encrypted spread spectrum watermarks, perceptual hashing and digital signatures, which we call an Embedded Blockchain. Within this scheme, we use the blockchain for its data structure of a cryptographically linked list, cryptographic hashing for absolute comparisons, perceptual hashing for flexible comparisons, digital signatures for proof of ownership, and encrypted spread spectrum watermarking to embed the blockchain into the background noise of the media. So each media recording has its own unique blockchain, with each block holding information describing the media segment. The problem of verifying the integrity of the media is recast to traversing the blockchain, block-by-block, and segment-by-segment of the media. If any chain is broken, the difference in the computed and extracted perceptual hash is used to estimate the level of manipulation.
