Title
A method for secure and efficient block cipher using white-box cryptography
Abstract
Nowadays many information should be protected securely. Generally, they are encrypted by cryptographic algorithm. A secret value is used as encryption key which must not be exposed as public. However, the key can be extracted by adversary using white box attack. In the white box attack, the adversary is supposed to have full control of the target program's execution environment. A White-Box Cryptography is introduced to protect key from white box attack. In the previous research, white box cryptography is applied to symmetric key encryption. Although they provide protection mechanism from extracting key, they have disadvantages that are low performance and difficulty of key update. In this paper, we mentioned White-Box AES proposed by Chow et al. and improve its low performance and key update problem. We adopted composite mode using White-Box AES and Standard AES. Our scheme shows almost same performance with Standard AES and provides dynamic key approach effect. Moreover, it has a CPA-secure property and can be constructed for CCA-secure scheme with Message Authentication Code.
Year
DOI
Venue
2012
10.1145/2184751.2184856
ICUIMC
Keywords
Field
DocType
white box attack,white-box cryptography,efficient block cipher,key encryption,white-box aes,white box cryptography,key update,key update problem,encryption key,standard aes,dynamic key approach effect,low performance,block cipher,message authentication code
Key space,Key distribution,Key generation,Key exchange,Computer science,Computer security,Computer network,Key encapsulation,Key whitening,Key (cryptography),Key size
Conference
Citations 
PageRank 
References 
0
0.34
7
Authors
3
Name
Order
Citations
PageRank
Jaesung Yoo100.68
Hanjae Jeong2112.31
Dongho Won31262154.14