Results 271 to 280 of about 906,870 (314)
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2017
At PQCRYPTO 2014, Porras, Baena and Ding introduced ZHFE, an interesting new technique for multivariate post-quantum encryption. The scheme is a generalization of HFE in which a single low degree polynomial in the central map is replaced by a pair of high degree polynomials with a low degree cubic polynomial contained in the ideal they generate.
Daniel Cabarcas +2 more
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At PQCRYPTO 2014, Porras, Baena and Ding introduced ZHFE, an interesting new technique for multivariate post-quantum encryption. The scheme is a generalization of HFE in which a single low degree polynomial in the central map is replaced by a pair of high degree polynomials with a low degree cubic polynomial contained in the ideal they generate.
Daniel Cabarcas +2 more
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On the Difficulty of Key Recovery Systems
1999Key escrow cryptography has been becoming popular recently. A key escrow system bridges the gap between users' privacy and social need for protection against criminal behavior. However, there are some disadvantages and controversies regarding the system. In this paper we review and analyze the weaknesses of several recent protocols.
Seungjoo Kim +3 more
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Key Recovery Attack on a Knapsack Public Key Cryptosystem
2012 Fourth International Conference on Intelligent Networking and Collaborative Systems, 2012A new knapsack public key cryptosystem is crypt analyzed. The cryptanalytic attack uses the Euclidean algorithm to obtain the greatest common divisor of some integers, and thus recovers the modulus. Then the attack reconstructs the multiplier by solving a linear congruence. Therefore, all the secret keys can be retrieved in polynomial time.
Chunfei Ju, Hui Yuan
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Key Recovery — Möglichkeiten und Risiken
Informatik-Spektrum, 1998Dieser Beitrag untersucht verschiedene Moglichkeiten zur Wiederherstellung verschlusselter Daten, ohne das ein direkter Zugriff auf den vom intendierten Nutzer zur Entschlusselung verwendeten Schlussel besteht, und vergleicht sie hinsichtlich ihrer sicherheitstechnischen Eigenschaften.
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Cryptographic Information Recovery Using Key Recovery
Computers & Security, 2000A note to readers: the authors consider that all techniques for key recovery may be viewed as having a position on a broad continuum. The only way to avoid misunderstanding is to identify particular techniques by listing their specific characteristics, rather than using multiply-defined terms.
Michael Smith 0022 +2 more
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Practical Key Recovery Schemes
2001In this paper,the Bell Labs key recovery scheme is extensively modified to enable a user to request on-line key recovery service when the file decryption key is forgotten or lost. New practical and important requirements of key recovery are also considered in the proposed schemes, for example, the key recovery server and any intruder over the ...
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Transformation: The Key to Recovery
Journal of Ministry in Addiction & Recovery, 1997ABSTRACT Transformation from a theological perspective is a key conceptual framework within which to understand the recovery process from addiction. It is a gift of grace and is a processive phenomenon incorporating the reality of the past, the actuality of the present and the potentiality of the future.
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A Key Recovery Mechanism for Reliable Group Key Management
2003Secret group communication can be achieved by encryption messages with a group key. Dynamic groups face the problem of changing the group key whenever members join or leave. One of the solutions to this problem is to send the updated group key to members via rekey messages in a secure manner.
Taenam Cho, Sang-Ho Lee
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A Secure Re-keying Scheme with Key Recovery Property
2002A commonly used solution for controlling access to information in a multicast group is to encrypt the data using a group key (session key). The group key is only known by users in the group, but not others. A multicast group is dynamic in the sense that group memberships changes in each session.
Hartono Kurnio +2 more
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