Safety Analysis of Various Padding Techniques on Padding Oracle Attack
نویسندگان
چکیده
منابع مشابه
Practical Padding Oracle Attacks
At Eurocrypt 2002, Vaudenay introduced a powerful side-channel attack, which is called padding oracle attack, against CBC-mode encryption with PKCS#5 padding (See [6]). If there is an oracle which on receipt of a ciphertext, decrypts it and then replies to the sender whether the padding is correct or not, Vaudenay shows how to use that oracle to e ciently decrypt data without knowing the encryp...
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For the security of communication channels in today’s networks and encryption of messages therein, applications and their users rely on cryptographic protocols. These are supposed to provide confidentiality and integrity of message contents. They are relied upon by online shopping, banking, communication, scientific applications, and many others. Design errors in standard definition documents o...
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We show how to exploit the encrypted key import functions of a variety of different cryptographic devices to reveal the imported key. The attacks are padding oracle attacks, where error messages resulting from incorrectly padded plaintexts are used as a side channel. In the asymmetric encryption case, we modify and improve Bleichenbacher’s attack on RSA PKCS#1v1.5 padding, giving new cryptanaly...
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In [8] Vaudenay presented an attack on block cipher CBCmode encryption when a particular padding method is used. In this paper, we employ a similar approach to analyse the padding methods of the ISO CBC-mode encryption standard. We show that, for several of the padding methods referred to by this standard, we can exploit an oracle returning padding correctness information to efficiently extract...
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This paper presents a non-technical overview of the the recent attacks against RSA encryption and signature standards. It is intended as both a system design aid and a temporary reference text beginning at a level suitable for engineers, risk managers and system architects with no or little previous exposure to padding attacks. We have used a straightforward approach to the essential consequenc...
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ژورنال
عنوان ژورنال: Journal of the Korea Institute of Information Security and Cryptology
سال: 2015
ISSN: 1598-3986
DOI: 10.13089/jkiisc.2015.25.2.271