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In this paper, we propose a hybrid power model that includes the power consumption of not only the registers but also part of the combinational logic. By doing knownkey analysis with this hybrid model, power side-channel leakage caused by correct keys can be detected. In experiment, PRINTcipher and DES algorithms were chosen as analysis targets and combinational logic s-box unit was selected to build...
We present a more efficient differential fault analysis (DFA) attack on SOSEMANUK, a new synchronous software-oriented stream cipher, which is contained in the current eSTREAM Portfolio. In the previous study, it is required around 6144 faults, 248 SOSEMANUK iterations and 238.17 bytes storage to recovers the secret inner state of the cipher. We offer an improved attack and show that only around 4608...
In this paper we discuss correlation power analysis attack against stream cipher MICKEY v2. In such attacks, we use Hamming-Distance model to simulate the power consumption. Hamming-Distance model is a more accurate description to power consumption than other models such as Hamming-Weight, bit model etc. Generally, Hamming-Distance model is used to map the transitions that occur at the cells' outputs...
SMS4 is a 128-bit block cipher published by as released as the symmetric-key encryption standard of Wireless Local Area Network(WLAN) by China in 2006. On the differential analysis principle, we propose an extension of differential fault attack on the SMS4 cipher. Mathematical analysis shows that our attack can recover its secret key by introducing about 40 faulty ciphertexts. Our work expands the...
Web rootkits Trojan, which can download virus from remote control server and hide in BIOS, is very harmful to web security. Reverse assembly analysis on web rootkit Trojan can help virus analyzer to trace malicious code and find some immunization methods. The paper presents deeply reverse analysis methods of web rootkit Trojan according to malicious assembly codes. The MASM assembly instructions in...
Rootkits Trojan virus, which can control attacked computers, delete import files and even steal password, are much popular now. Interrupt Descriptor Table (IDT) hook is rootkit technology in kernel level of Trojan. The paper makes deeply analysis on the IDT hooks handle procedure of rootkit Trojan according to previous other researchers methods. We compare its IDT structure and programs to find how...
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