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Ecole normale superieure
(15 results)-
White Papers
On the Security of Three Versions of the WAI Protocol in Chinese WLAN Implementation Plan
April 3, 2007, 12:00am PDT
This paper investigates the security properties of three versions of the WAI protocol in Chinese WLAN implementation plan. The authors first revisit the security analysis that has been done to the...
Provided by Ecole normale superieure
-
White Papers
Security Analysis of SIMD
June 1, 2010, 12:00am PDT
In this paper the authors study the security of the SHA-3 candidate SIMD. They first show a new free-start distinguisher based on symmetry relations. It allows distinguishing the compression...
Provided by Ecole normale superieure
-
White Papers
Differential Attack on Five Rounds of the SC2000 Block Cipher
December 4, 2010, 12:00am PST
SC2000 is a 128-bit block cipher with a user key of 128, 192 or 256 bits, which employs a total of 6.5 rounds for a 128-bit user key, and a total of 7.5 rounds for a 192 or 256-bit key. It was...
Provided by Ecole normale superieure
-
White Papers
Relational Abstract Domains for the Detection of Floating-Point Run-Time Errors
March 16, 2007, 12:00am PDT
The authors present a new idea to adapt relational abstract domains to the analysis of IEEE 754-compliant floating-point numbers in order to statically detect, through Abstract...
Provided by Ecole normale superieure
-
White Papers
Fault Attacks Against EMV Signatures
October 18, 2009, 12:00am PDT
At CHES 2009, Coron, Joux, Kizhvatov, Naccache and Paillier (CJKNP) exhibited a fault attack against RSA signatures with partially known messages. This attack allows factoring the public modulus...
Provided by Ecole normale superieure
-
White Papers
Divisibility, Smoothness and Cryptographic Applications
October 17, 2008, 12:00am PDT
This paper deals with products of moderate-size primes, familiarly known as smooth numbers. Smooth numbers play a crucial role in information theory, signal processing and cryptography. The...
Provided by Ecole normale superieure
-
White Papers
Encrypting Proofs on Pairings and Its Application to Anonymity for Signatures
December 17, 2008, 12:00am PST
The authors give a generic methodology to unlinkably anonymize cryptographic schemes in bilinear groups using the Boneh-Goh-Nissim cryptosystem and nizk proofs in the line of Groth, Ostrovsky and...
Provided by Ecole normale superieure
-
White Papers
Practical Key-Recovery for All Possible Parameters of SFLASH
May 27, 2011, 12:00am PDT
In this paper, the authors present a new practical key-recovery attack on the SFLASH signature scheme. SFLASH is a derivative of the older C encryption and signature scheme that was broken in 1995...
Provided by Ecole normale superieure
-
White Papers
Generalized Key Delegation for Hierarchical Identity-Based Encryption
June 1, 2007, 12:00am PDT
In this paper, the authors introduce a new primitive called Identity-Based Encryption with Wild-card Key Derivation (WKD-IBE, or "Wicked IBE") that enhances the concept of Hierarchical...
Provided by Ecole normale superieure
-
White Papers
Patterns and Types for Querying XML Documents
January 1, 2008, 12:00am PST
Among various proposals for primitives for deconstructing XML data two approaches seem to clearly stem from practise: path expressions, widely adopted by the database community, and regular...
Provided by Ecole normale superieure
-
White Papers
New Anonymity Notions for Identity-Based Encryption
September 12, 2008, 12:00am PDT
Identity-based encryption is a very convenient tool to avoid key management. Recipient-privacy is also a major concern nowadays. To combine both, anonymous identity-based encryption has been...
Provided by Ecole normale superieure
-
White Papers
An Application of the Goldwasser-Micali Cryptosystem to Biometric Authentication
July 4, 2007, 12:00am PDT
This paper deals with the security challenges in authentication protocols employing volatile biometric features, where the authentication is indeed a comparison between a fresh biometric template...
Provided by Ecole normale superieure
-
White Papers
Round-Optimal Privacy-Preserving Protocols With Smooth Projective Hash Functions
February 22, 2012, 12:00am PST
In 2008, Groth and Sahai proposed a powerful suite of techniques for constructing non-interactive zero-knowledge proofs in bilinear groups. Their proof systems have found numerous applications,...
Provided by Ecole normale superieure
-
White Papers
All-in-One Graphical Tool for the Management of Diet a GridRPC Middleware
May 26, 2008, 12:00am PDT
Grid middleware are the link between large scale (and distributed) platforms and applications. Managing such a software system and the grid environment itself can be a hard task when no dedicated...
Provided by Ecole normale superieure de Lyon
-
White Papers
A Computationally Sound Mechanized Prover for Security Protocols
May 25, 2007, 12:00am PDT
The authors present a new mechanized prover for secrecy properties of security protocols. In contrast to most previous provers, their tool does not rely on the Dolev-Yao model, but on the...
Provided by Ecole normale superieure
-
White Papers
A Computationally Sound Mechanized Prover for Security Protocols
May 25, 2007, 12:00am PDT
The authors present a new mechanized prover for secrecy properties of security protocols. In contrast to most previous provers, their tool does not rely on the Dolev-Yao model, but on the...
Provided by Ecole normale superieure
-
White Papers
Round-Optimal Privacy-Preserving Protocols With Smooth Projective Hash Functions
February 22, 2012, 12:00am PST
In 2008, Groth and Sahai proposed a powerful suite of techniques for constructing non-interactive zero-knowledge proofs in bilinear groups. Their proof systems have found numerous applications,...
Provided by Ecole normale superieure
-
White Papers
An Application of the Goldwasser-Micali Cryptosystem to Biometric Authentication
July 4, 2007, 12:00am PDT
This paper deals with the security challenges in authentication protocols employing volatile biometric features, where the authentication is indeed a comparison between a fresh biometric template...
Provided by Ecole normale superieure
-
White Papers
New Anonymity Notions for Identity-Based Encryption
September 12, 2008, 12:00am PDT
Identity-based encryption is a very convenient tool to avoid key management. Recipient-privacy is also a major concern nowadays. To combine both, anonymous identity-based encryption has been...
Provided by Ecole normale superieure
-
White Papers
Generalized Key Delegation for Hierarchical Identity-Based Encryption
June 1, 2007, 12:00am PDT
In this paper, the authors introduce a new primitive called Identity-Based Encryption with Wild-card Key Derivation (WKD-IBE, or "Wicked IBE") that enhances the concept of Hierarchical...
Provided by Ecole normale superieure
-
White Papers
Practical Key-Recovery for All Possible Parameters of SFLASH
May 27, 2011, 12:00am PDT
In this paper, the authors present a new practical key-recovery attack on the SFLASH signature scheme. SFLASH is a derivative of the older C encryption and signature scheme that was broken in 1995...
Provided by Ecole normale superieure
-
White Papers
Encrypting Proofs on Pairings and Its Application to Anonymity for Signatures
December 17, 2008, 12:00am PST
The authors give a generic methodology to unlinkably anonymize cryptographic schemes in bilinear groups using the Boneh-Goh-Nissim cryptosystem and nizk proofs in the line of Groth, Ostrovsky and...
Provided by Ecole normale superieure
-
White Papers
Divisibility, Smoothness and Cryptographic Applications
October 17, 2008, 12:00am PDT
This paper deals with products of moderate-size primes, familiarly known as smooth numbers. Smooth numbers play a crucial role in information theory, signal processing and cryptography. The...
Provided by Ecole normale superieure
-
White Papers
Fault Attacks Against EMV Signatures
October 18, 2009, 12:00am PDT
At CHES 2009, Coron, Joux, Kizhvatov, Naccache and Paillier (CJKNP) exhibited a fault attack against RSA signatures with partially known messages. This attack allows factoring the public modulus...
Provided by Ecole normale superieure
-
White Papers
Relational Abstract Domains for the Detection of Floating-Point Run-Time Errors
March 16, 2007, 12:00am PDT
The authors present a new idea to adapt relational abstract domains to the analysis of IEEE 754-compliant floating-point numbers in order to statically detect, through Abstract...
Provided by Ecole normale superieure
-
White Papers
Differential Attack on Five Rounds of the SC2000 Block Cipher
December 4, 2010, 12:00am PST
SC2000 is a 128-bit block cipher with a user key of 128, 192 or 256 bits, which employs a total of 6.5 rounds for a 128-bit user key, and a total of 7.5 rounds for a 192 or 256-bit key. It was...
Provided by Ecole normale superieure
-
White Papers
Security Analysis of SIMD
June 1, 2010, 12:00am PDT
In this paper the authors study the security of the SHA-3 candidate SIMD. They first show a new free-start distinguisher based on symmetry relations. It allows distinguishing the compression...
Provided by Ecole normale superieure
-
White Papers
On the Security of Three Versions of the WAI Protocol in Chinese WLAN Implementation Plan
April 3, 2007, 12:00am PDT
This paper investigates the security properties of three versions of the WAI protocol in Chinese WLAN implementation plan. The authors first revisit the security analysis that has been done to the...
Provided by Ecole normale superieure
-
White Papers
All-in-One Graphical Tool for the Management of Diet a GridRPC Middleware
May 26, 2008, 12:00am PDT
Grid middleware are the link between large scale (and distributed) platforms and applications. Managing such a software system and the grid environment itself can be a hard task when no dedicated...
Provided by Ecole normale superieure de Lyon
-
White Papers
Patterns and Types for Querying XML Documents
January 1, 2008, 12:00am PST
Among various proposals for primitives for deconstructing XML data two approaches seem to clearly stem from practise: path expressions, widely adopted by the database community, and regular...
Provided by Ecole normale superieure
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