Partial-scrambling of images encoded using JPEG2000 without generating marker codes

Kiya, Hitoshi; Imaizumi, Shoko; Watanabe, Osamu

doi:10.1109/icip.2003.1247217

Cited by 39 publications

(23 citation statements)

References 5 publications

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“…For example, the Digital Cinema Initiative (DCI), an entity created by seven major motion picture studios, has adopted JPEG2000 as the compression standard in their specification for a unified Digital Cinema System [4]. Security techniques specifically tailored to the needs of scalable representation in general and JPEG2000 in particular have been proposed recently, e.g., [5][6][7][8][9][10]. An overview and discussion of the proposed approaches in the context of JPEG2000 can be found in [11].…”

Section: Introductionmentioning

confidence: 99%

Assessing JPEG2000 encryption with key-dependent wavelet packets

Engel

Stütz

Uhl

2012

EURASIP J. on Info. Security

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We analyze and discuss encryption schemes for JPEG2000 based on the wavelet packet transform with a keydependent subband structure. These schemes have been assumed to reduce the runtime complexity of encryption and compression. In addition to this "lightweight" nature, other advantages like encrypted domain signal processing have been reported. We systematically analyze encryption approaches based on key-dependent subband structures in terms of their impact on compression performance, their computational complexity and the level of security they provide as compared to more classical techniques. Furthermore, we analyze the prerequisites and settings in which the previously reported advantages actually hold and in which settings no advantages can be observed. As a final outcome it has to be stated that the compression integrated encryption approach based on the idea of secret wavelet packets can not be recommended.

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Section: Introductionmentioning

confidence: 99%

Assessing JPEG2000 encryption with key-dependent wavelet packets

Engel

Stütz

Uhl

2012

EURASIP J. on Info. Security

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“…Representative technologies include JPEG2000 [5], which is a wavelet based scalable image coding, and MPEG-4 FGS [6], a scalable video coding (SVC) that provides fine granularity scalability with SNR and temporal scalability. Encryption schemes for scalable coding [7], [8] have been proposed along with these coding schemes.…”

Section: Introductionmentioning

confidence: 99%

An Efficient Encryption and Key Management Scheme for Layered Access Control of H.264/Scalable Video Coding

Park

Shin

2009

IEICE Trans. Inf. & Syst.

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SUMMARYThis paper proposes a new selective encryption scheme and a key management scheme for layered access control of H.264/SVC. This scheme encrypts three domains in hierarchical layers using different keys: intra prediction modes, motion vector difference values and sign bits of texture data. The proposed scheme offers low computational complexity, low bit-overhead, and format compliance by utilizing the H.264/SVC structure. It provides a high encryption efficiency by encrypting domains selectively, according to each layer type in the enhancement-layer. It also provides confidentiality and implicit authentication using keys derived in the proposed key management scheme for encryption. Simulation results show the effectiveness of the proposed scheme.

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“…There is a number of approaches that propose format-compliant encryption for JPEG2000, e.g. [3,4,5], all of which focus on the encryption of packet bodies. In this paper we discuss an efficient method for fully format-compliant transparent encryption that focusses on the packet headers: only the packet headers are encrypted, the packet body data remain in plaintext.…”

Section: Introductionmentioning

confidence: 99%

Efficient Transparent JPEG2000 Encryption with Format-Compliant Header Protection

Engel

Stütz

Uhl

2007

2007 IEEE International Conference on Signal Processing and Communications

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Transparent encryption allows the decoding of a preview image from the encrypted bitstream, even if the key is not available. We propose a lightweight partial encryption scheme that allows transparent encryption for JPEG2000. The proposed scheme efficiently encrypts JPEG2000 packet header information. The resulting bitstream is fully format-compliant. Apart from low computational complexity, the proposed scheme has several beneficial properties, e.g. it allows to perform tasks such as rateadaptation and visual hashing in the encrypted domain. We evaluate the security of the proposed approach and discuss possible attacks. The proposed approach succeeds in protecting the fullquality version of the visual content reasonably well, especially considering its low computational demands.

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Partial-scrambling of images encoded using JPEG2000 without generating marker codes

Cited by 39 publications

References 5 publications

Assessing JPEG2000 encryption with key-dependent wavelet packets

Assessing JPEG2000 encryption with key-dependent wavelet packets

An Efficient Encryption and Key Management Scheme for Layered Access Control of H.264/Scalable Video Coding

Efficient Transparent JPEG2000 Encryption with Format-Compliant Header Protection

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