White Box Cryptography
نویسنده
چکیده
This paper discusses white box cryptography, which is used to protect the key from white box attack. Previously white box cryptography was applied to symmetric key encryption, which does provide protection mechanism to the key, but affects the performance and is considered difficult to update the key. The scheme proposed by the researcher mentions White Box AES and improves its low performance and key update problem by adopting a composite mode using White Box AES and Standard AES. The end result shows similar performance with AES and provides a dynamic key approach effect. [1]
منابع مشابه
An Introduction to Differential Computation Analysis (DCA) on the withe-box cryptography algorithms
Advances in information and communication technologies lead to use of some new devices such as smart phones. The new devices provide more advantages for the adversaries hence with respect to them, one can define with-box cryptography. In this new model of cryptography, designers try to hide the key using as a kind of implementation. The Differential Computation Analysis (DCA) is a side channel ...
متن کاملWhite-Box Cryptography: Formal Notions and (Im)possibility Results
A key research question in computer security is whether one can implement software that offers some protection against software attacks from its execution platform. While code obfuscation attempts to hide certain characteristics of a program P , white-box cryptography specifically focusses on software implementations of cryptographic primitives (such as encryption schemes); the goal of a white-...
متن کاملWhite-Box Security Notions for Symmetric Encryption Schemes
White-box cryptography has attracted a growing interest from researchers in the last decade. Several white-box implementations of standard block-ciphers (DES, AES) have been proposed but they have all been broken. On the other hand, neither evidence of existence nor proofs of impossibility have been provided for this particular setting. This might be in part because it is still quite unclear wh...
متن کاملOn White-Box Cryptography
White-box cryptography techniques are aimed at protecting software implementations of cryptographic algorithms against key recovery. They are primarily used in DRM-like applications as a cost-effective alternative to token-based protections. This paper discusses the relevance of white-box implementations in such contexts as a series of questions
متن کاملWhite Box Cryptography: Another Attempt
At CMS 2006 Bringer et al. show how to conceal the algebraic structure of a “traceable block cipher” by adding perturbations to its description. We here exploit and strengthen their ideas by further perturbing the representation of a cipher towards a white box implementation. Our technique is quite general, and we apply it – as a challenging example in the domain of white box cryptography – to ...
متن کامل