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    • 7. 发明公开
    • PREVENTING PATTERN RECOGNITION IN ELECTRONIC CODE BOOK ENCRYPTION
    • DER ELEKTRONISCHENCODEBUCHVERSCHLÜSSELUNG的VERHINDERUNG VON MUSTERERKENNUNG
    • EP2798769A1
    • 2014-11-05
    • EP11878504.7
    • 2011-12-30
    • Intel Corporation
    • JANUS, ScottMARTIN, JasonSAVAGAONKAR, Uday
    • H04L9/06G06F21/60
    • H04L9/0637G06F21/6209G06T1/20H04L2209/08H04N1/4486
    • In general, in one aspect, noise is injected into a bitmap associated with content to be presented on a display to create a noisy bitmap. The noisy bitmap is encrypted using electronic code book (ECB) encryption. The resulting ciphertext does not include recognizable patterns from the content as is typical with ECB encryption. The injection of noise may include modifying pixel values for at least a subset of pixels in the bitmap. The pixel values may be modified by using a counter, a known modification pattern, or a random number generator. The bitmap may be analyzed to determine how the bitmap can be modified to maximize the randomness of the bitmap while ensuring that the noisy bitmap is visually perceptually similar when presented. The noise may be injected into a block of pixels prior to the block being encrypted.
    • 通常,在一个方面,将噪声注入到要显示在显示器上的内容相关联的位图中以产生噪声位图。 嘈杂的位图使用电子代码簿(ECB)加密进行加密。 所得到的密文不包含来自内容的可识别的模式,如ECB加密的典型代码。 噪声的注入可以包括修改位图中的至少像素子集的像素值。 可以通过使用计数器,已知修改模式或随机数生成器来修改像素值。 可以分析位图以确定如何修改位图以最大化位图的随机性,同时确保在呈现时视觉上感觉上相似的嘈杂位图。 在块被加密之前,可以将噪声注入到像素块中。
    • 8. 发明申请
    • PREVENTING PATTERN RECOGNITION IN ELECTRONIC CODE BOOK ENCRYPTION
    • 防止电子代码加密中的图案识别
    • WO2013101185A1
    • 2013-07-04
    • PCT/US2011/068108
    • 2011-12-30
    • INTEL CORPORATIONJANUS, ScottMARTIN, JasonSAVAGAONKAR, Uday
    • JANUS, ScottMARTIN, JasonSAVAGAONKAR, Uday
    • H04L9/06G06F21/24
    • H04L9/0637G06F21/6209G06T1/20H04L2209/08H04N1/4486
    • In general, in one aspect, noise is injected into a bitmap associated with content to be presented on a display to create a noisy bitmap. The noisy bitmap is encrypted using electronic code book (ECB) encryption. The resulting ciphertext does not include recognizable patterns from the content as is typical with ECB encryption. The injection of noise may include modifying pixel values for at least a subset of pixels in the bitmap. The pixel values may be modified by using a counter, a known modification pattern, or a random number generator. The bitmap may be analyzed to determine how the bitmap can be modified to maximize the randomness of the bitmap while ensuring that the noisy bitmap is visually perceptually similar when presented. The noise may be injected into a block of pixels prior to the block being encrypted.
    • 通常,在一个方面,将噪声注入到与将要呈现在显示器上的内容相关联的位图中以产生噪声位图。 噪声位图使用电子代码簿(ECB)加密进行加密。 所得到的密文不包括来自内容的可识别模式,如ECB加密典型。 噪声的注入可以包括修改位图中的至少像素子集的像素值。 可以通过使用计数器,已知修改模式或随机数生成器来修改像素值。 可以分析位图以确定位图如何被修改以使位图的随机性最大化,同时确保在呈现时视觉上感觉上类似的噪声位图。 在块被加密之前,可以将噪声注入到像素块中。