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Weizmann Institute of Science
(16 results)-
White Papers
The Topology of Wireless Communication
March 25, 2011, 12:00am PDT
In This Paper the authors topological Properties of Wireless Communication Maps and Their Usability in Algorithmic Design. They consider the SINR Model, Which Compares the Received Power of a...
Provided by Weizmann Institute of Science
-
White Papers
Tight Bounds for Unconditional Authentication Protocols in the Manual Channel and Shared Key Models
April 7, 2008, 12:00am PDT
The problem of authentication of message in two very different models of communication is a proposition that calls for some examination. The first model proposed is tried out in a setting where...
Provided by Weizmann Institute of Science
-
White Papers
A Practical-Time Attack on the A5/3 Cryptosystem Used in Third Generation GSM Telephony
January 10, 2010, 12:00am PST
The privacy and security of GSM cellular telephony is protected by the A5 family of cryptosystems. The first two members of this family, A5/1 (Developed primarily for European markets) and A5/2...
Provided by Weizmann Institute of Science
-
White Papers
ALRED Blues: New Attacks on AES-Based MAC's
February 24, 2011, 12:00am PST
The ALRED family of Message Authentication Codes (MAC's) is based on three principles: Using a keyless block cipher in CBC mode to process the message, choosing AES-128 as this cipher, and...
Provided by Weizmann Institute of Science
-
White Papers
A Framework for Efficient Signatures, Ring Signatures and Identity Based Encryption in the Standard Model
September 7, 2010, 12:00am PDT
In this paper, the authors present a generic framework for constructing efficient signature schemes, ring signature schemes, and identity based encryption schemes, all in the standard model...
Provided by Weizmann Institute of Science
-
White Papers
An Improved Algebraic Attack on Hamsi-256
January 19, 2011, 12:00am PST
Hamsi is one of the 14 second-stage candidates in NIST's SHA-3 competition. The only previous attack on this hash function was a very marginal attack on its 256-bit version published by Thomas...
Provided by Weizmann Institute of Science
-
White Papers
Breaking Grain-128 With Dynamic Cube Attacks
March 16, 2011, 12:00am PDT
A well designed cipher is expected to resist all known cryptanalytic attacks, including distinguishing attacks and key recovery attacks. These two types of attacks are closely related since in...
Provided by Weizmann Institute of Science
-
White Papers
Public-Key Encryption in the Bounded-Retrieval Model
October 28, 2009, 12:00am PDT
The authors construct the first public-key encryption scheme in the Bounded-Retrieval Model (BRM), providing security against various forms of adversarial "Key leakage" attacks. In this model, the...
Provided by Weizmann Institute of Science
-
White Papers
Un-Trusted-HB: Security Vulnerabilities of Trusted-HB
January 27, 2009, 12:00am PST
With increased use of passive RFID tags, the need for secure lightweight identification protocols arose. HB+ is one such protocol, which was proven secure in the detection-based model, but shown...
Provided by Weizmann Institute of Science
-
White Papers
A Linear Lower Bound on the Communication Complexity of Single-Server Private Information Retrieval
December 12, 2007, 12:00am PST
The authors study the communication complexity of single-server Private Information Retrieval (PIR) protocols that are based on fundamental cryptographic primitives in a black-box manner. In this...
Provided by Weizmann Institute of Science
-
White Papers
Efficient Ring Signatures Without Random Oracles
August 24, 2006, 12:00am PDT
Ring signatures were introduced by Rivest, Shamir, and Tauman. Each user in the system generates and publishes a public key. (This key can be, for example, the description of an RSA permutation.)...
Provided by Weizmann Institute of Science
-
White Papers
An Experimentally Verified Attack on Full Grain-128 Using Dedicated Recon figurable Hardware
May 30, 2011, 12:00am PDT
In this paper, the authors describe the first single-key attack which can break the full version of Grain-128 for arbitrary keys by an algorithm which is considerably faster than exhaustive...
Provided by Weizmann Institute of Science
-
White Papers
Planned and Traversable Play-Out: A Flexible Method for Executing Scenario-Based Programs
January 3, 2007, 12:00am PST
The authors introduce a novel approach to the smart execution of scenario-based models of reactive systems, such as those resulting from the multi-modal inter-object language of Live Sequence...
Provided by Weizmann Institute of Science
-
White Papers
S2A: A Compiler for Multi-Modal UML Sequence Diagrams
January 5, 2007, 12:00am PST
The authors report on S2A, a compiler that translates Modal UML Sequence Diagrams (MSDs), a UML-compliant version of Live Sequence Charts (LSCs), into AspectJ code. It thus provides full code...
Provided by Weizmann Institute of Science
-
White Papers
Object Composition in Scenario-Based Programming
December 26, 2007, 12:00am PST
The authors investigate the classical notion of object composition in the framework of scenario-based specification and programming. They concentrate on Live Sequence Charts (LSC), which extend...
Provided by Weizmann Institute of Science
-
White Papers
On the Circular Security of Bit-Encryption
March 7, 2012, 12:00am PST
Motivated by recent developments in fully homomorphic encryption, the authors consider the folklore conjecture that every semantically-secure bit-encryption scheme is circular secure, or in other...
Provided by Weizmann Institute of Science
-
White Papers
On the Circular Security of Bit-Encryption
March 7, 2012, 12:00am PST
Motivated by recent developments in fully homomorphic encryption, the authors consider the folklore conjecture that every semantically-secure bit-encryption scheme is circular secure, or in other...
Provided by Weizmann Institute of Science
-
White Papers
Object Composition in Scenario-Based Programming
December 26, 2007, 12:00am PST
The authors investigate the classical notion of object composition in the framework of scenario-based specification and programming. They concentrate on Live Sequence Charts (LSC), which extend...
Provided by Weizmann Institute of Science
-
White Papers
S2A: A Compiler for Multi-Modal UML Sequence Diagrams
January 5, 2007, 12:00am PST
The authors report on S2A, a compiler that translates Modal UML Sequence Diagrams (MSDs), a UML-compliant version of Live Sequence Charts (LSCs), into AspectJ code. It thus provides full code...
Provided by Weizmann Institute of Science
-
White Papers
Planned and Traversable Play-Out: A Flexible Method for Executing Scenario-Based Programs
January 3, 2007, 12:00am PST
The authors introduce a novel approach to the smart execution of scenario-based models of reactive systems, such as those resulting from the multi-modal inter-object language of Live Sequence...
Provided by Weizmann Institute of Science
-
White Papers
An Experimentally Verified Attack on Full Grain-128 Using Dedicated Recon figurable Hardware
May 30, 2011, 12:00am PDT
In this paper, the authors describe the first single-key attack which can break the full version of Grain-128 for arbitrary keys by an algorithm which is considerably faster than exhaustive...
Provided by Weizmann Institute of Science
-
White Papers
Efficient Ring Signatures Without Random Oracles
August 24, 2006, 12:00am PDT
Ring signatures were introduced by Rivest, Shamir, and Tauman. Each user in the system generates and publishes a public key. (This key can be, for example, the description of an RSA permutation.)...
Provided by Weizmann Institute of Science
-
White Papers
A Linear Lower Bound on the Communication Complexity of Single-Server Private Information Retrieval
December 12, 2007, 12:00am PST
The authors study the communication complexity of single-server Private Information Retrieval (PIR) protocols that are based on fundamental cryptographic primitives in a black-box manner. In this...
Provided by Weizmann Institute of Science
-
White Papers
Un-Trusted-HB: Security Vulnerabilities of Trusted-HB
January 27, 2009, 12:00am PST
With increased use of passive RFID tags, the need for secure lightweight identification protocols arose. HB+ is one such protocol, which was proven secure in the detection-based model, but shown...
Provided by Weizmann Institute of Science
-
White Papers
Public-Key Encryption in the Bounded-Retrieval Model
October 28, 2009, 12:00am PDT
The authors construct the first public-key encryption scheme in the Bounded-Retrieval Model (BRM), providing security against various forms of adversarial "Key leakage" attacks. In this model, the...
Provided by Weizmann Institute of Science
-
White Papers
Breaking Grain-128 With Dynamic Cube Attacks
March 16, 2011, 12:00am PDT
A well designed cipher is expected to resist all known cryptanalytic attacks, including distinguishing attacks and key recovery attacks. These two types of attacks are closely related since in...
Provided by Weizmann Institute of Science
-
White Papers
An Improved Algebraic Attack on Hamsi-256
January 19, 2011, 12:00am PST
Hamsi is one of the 14 second-stage candidates in NIST's SHA-3 competition. The only previous attack on this hash function was a very marginal attack on its 256-bit version published by Thomas...
Provided by Weizmann Institute of Science
-
White Papers
A Framework for Efficient Signatures, Ring Signatures and Identity Based Encryption in the Standard Model
September 7, 2010, 12:00am PDT
In this paper, the authors present a generic framework for constructing efficient signature schemes, ring signature schemes, and identity based encryption schemes, all in the standard model...
Provided by Weizmann Institute of Science
-
White Papers
ALRED Blues: New Attacks on AES-Based MAC's
February 24, 2011, 12:00am PST
The ALRED family of Message Authentication Codes (MAC's) is based on three principles: Using a keyless block cipher in CBC mode to process the message, choosing AES-128 as this cipher, and...
Provided by Weizmann Institute of Science
-
White Papers
The Topology of Wireless Communication
March 25, 2011, 12:00am PDT
In This Paper the authors topological Properties of Wireless Communication Maps and Their Usability in Algorithmic Design. They consider the SINR Model, Which Compares the Received Power of a...
Provided by Weizmann Institute of Science
-
White Papers
A Practical-Time Attack on the A5/3 Cryptosystem Used in Third Generation GSM Telephony
January 10, 2010, 12:00am PST
The privacy and security of GSM cellular telephony is protected by the A5 family of cryptosystems. The first two members of this family, A5/1 (Developed primarily for European markets) and A5/2...
Provided by Weizmann Institute of Science
-
White Papers
Tight Bounds for Unconditional Authentication Protocols in the Manual Channel and Shared Key Models
April 7, 2008, 12:00am PDT
The problem of authentication of message in two very different models of communication is a proposition that calls for some examination. The first model proposed is tried out in a setting where...
Provided by Weizmann Institute of Science
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