Chris Hall, Marleen Iannucci Mcclell, Roberta G. S
This book provides a fascinating insight into professional practice in a centre for assessing children with developmental difficulties. Rather than offering another treatise on how child assessment...
Galea, Sandro, Hall, Chris, Kaplan, George A
Peer Reviewed
Non-simple abelian varieties in a family: geometric and analytic approaches (2009)
Ellenberg, Jordan S., Elsholtz, Christian, Hall, Chris, Kowalski, Emmanuel
We consider, in the special case of certain one-parameter families of Jacobians of curves defined over a number field, the problem of how the property that the generic fiber of such a family is...
An open image theorem for a general class of abelian varieties (2008)
Let K be a number field and A/K be a polarized abelian variety with absolutely trivial endomorphism ring. We show that if the Neron model of A/K has at least one fiber with potential toric dimension...
Monodromy Groups of Hurwitz-type Problems (2008)
We solve the Hurwitz monodromy problem for degree-4 covers. That is, the Hurwitz space H_{4,g} of all simply branched covers of P^1 of degree 4 and genus g is an unramified cover of the space...
Towards Lang-Trotter for Elliptic Curves over Function Fields (2008)
Chris Hall And, Chris Hall, José Felipe Voloch
Introduction Let K be a global field of char p and let F q K denote the algebraic closure of F p in K. We fix an elliptic curve E/K with non-constant j-invariant and a torsion-free subgroup E(K) of...
The zebrafish lysozyme Cpromoter drives myeloid-specific expression in transgenic fish (2007)
Hall, Chris, Flores, Maria, Storm, Thilo, Crosier, Kathy, Crosier, Phil
Abstract Background How different immune cell compartments contribute to a successful immune response is central to fully understanding the mechanisms behind normal processes such as tissue repair...
VITAL and the ARROW Solution (2007)
Groenewegen, David, Hall, Chris
Powerpoint presentation (as PDF) by David Groenewegen (ARROW Project Manager) and Chris Hall (VTLS), at the APSR-ARROW Repository Market Day, 4 May 2007, Sydney.
The zebrafish lysozyme C promoter drives myeloid-specific expression in transgenic fish (2007)
Hall, Chris, Flores, Maria, Storm, Thilo, Crosier, Kathy, Crosier, Phil
An open access copy of this article is available and complies with the copyright holder/publisher conditions.
When the dragon awakes : internationalisation of SMEs in China and implications for Europe (2007)
Napoleon is sometimes quoted as saying “When China awakes, the world will tremble” or, as a variant, “When the sleeping dragon awakes, it will shake the world”. China is well and truly awake,...
Big symplectic or orthogonal monodromy modulo l (2006)
Let k be a field not of characteristic two and L be a set of almost all rational primes invertible in k. Suppose we have a variety X/k and strictly compatible system {M_ell -> X : ell in L} of...
Bipartisan redistricting commissions : a way to slay the gerrymander? / (2005)
Thesis (M.A.)--Georgetown University, 2005
Uniform results for Serre's theorem for elliptic curves (2005)
Cojocaru, Alina Carmen, Hall, Chris
A celebrated theorem of Serre from 1972 asserts that if E is an elliptic curve defined over ℚ and without complex multiplication, then its associated mod ℓ representation is surjective for...
Partysafe Project Evaluation Report (2001)
Cooper, Martin, Midford, Richard, Jaeger, Julie-Anne, Hall, Chris
No abstract available
Partysafe Project Evaluation Report (2001)
Cooper, Martin, Midford, Richard, Jaeger, Julie-Anne, Hall, Chris
No abstract available
Partysafe Project Evaluation Report (2001)
Cooper, Martin, Midford, Richard, Jaeger, Julie-Anne, Hall, Chris
No abstract available
Satellite Attitude Control and Power Tracking with Energy/Momentum Wheels (2001)
Panagiotis Tsiotras, Haijun Shen, Chris Hall
this paper. Four or more energy/momentum wheels in an arbitrary non-coplanar configuration and a set of three
The Twofish Team's Final Comments on AES Selection (2000)
Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, Niels Ferguson, ...
Introduction In 1996, the National Institute of Standards and Technology initiated a program to choose an Advanced Encryption Standard (AES) to replace DES [NIST97a]. In 1997, after soliciting public...
The Twofish Team's Final Comments on AES Selection (2000)
Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, Niels Ferguson, ...
to choose an Advanced Encryption Standard (AES) to replace DES [NIST97a].
Performance Comparison of the AES Submissions (1999)
Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, Niels Ferguson
The principal goal guiding the design of any encryption algorithm must be security. In the real world, however, performance and implementation cost are always of concern. Making the assumption that...
Further Observations on the Key Schedule of Twofish (1999)
Doug Whiting, John Kelsey, Bruce Schneier, David Wagner, Niels Ferguson, Chris Hall
Twofish is a 128-bit block cipher submitted as an AES candidate [SKW+98]. Mirza and Murphy [MM99] recently noted two interesting properties in the Twofish key schedule for 128-bit keys: there is a...
Further Observations on the Key Schedule of Twofish (1999)
Doug Whiting, John Kelsey, Bruce Schneier, David Wagner, Niels Ferguson, Chris Hall
Two sh is a 128-bit block cipher submitted as an AES candidate [SKW+98]. Mirza and Murphy [MM99] recently noted two interesting properties in the Two sh key schedule for 128-bit keys: there is a...
New Results on the Twofish Encryption Algorithm (1999)
Bruce Schneier, Johnn Kelsey, Doug Whiting, David Wagner, Chris Hall, Niels Ferguson
TwoFIsh is a 128-bit block cipher submitted as an AES candidate. We provide several new results, continuing the research in [SKW+98a, SKW+99b]. 1) We provide new performance numbers, including:...
Protecting Secret Keys with Personal Entropy (1999)
Carl Ellison, Chris Hall, Randy Milbert, Bruce Schneier
Conventional encryption technology often requires users to protect a secret key by selecting a password or passphrase. While a good passphrase will only be known to the user, it also has the flaw...
New Results on the Twofish Encryption Algorithm (1999)
Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, Niels Ferguson
Twofish is a 128-bit block cipher submitted as an AES candidate. We provide several new results, continuing the research in [SKW+98a, SKW+99b]. 1) We provide new performance numbers, including:...
Protecting Secret Keys with Personal Entropy (1999)
Carl Ellison, Chris Hall, Randy Milbert, Bruce Schneier
Conventional encryption technology often requires users to protect a secret key by selecting a password or passphrase. While a good passphrase will only be known to the user, it also has the aw that...
Reaction Attacks against Several Public-Key Cryptosystems (1999)
Chris Hall, Ian Goldberg, Bruce Schneier
Abstract. We present attacks against the McEliece Public-Key Cryptosystem, the Atjai-Dwork Public-Key Cryptosystem, and variants of those systems. Most of these systems base their security on the...
An Investigation of the Effects of Opiate Withdrawal Syndrome on Interrogative Suggestibility (1998)
Cryptanalytic attacks on pseudorandom number generators (1998)
John Kelsey, Bruce Schneier, David Wagner, Chris Hall, Counterpane Systems
Abstract. In this paper we discuss PRNGs: the mechanisms used by real-world secure systems to generate cryptographic keys, initialization vectors, “random ” nonces, and other values assumed to be...
Cryptanalytic attacks on pseudorandom number generators (1998)
John Kelsey, Bruce Schneier, David Wagner, Chris Hall, Counterpane Systems
Abstract. In this paper we discuss PRNGs: the mechanisms used by real-world secure systems to generate cryptographic keys, initialization vectors, \random " nonces, and other values assumed...
Secure Applications of Low-Entropy Keys (1998)
John Kelsey, Bruce Schneier, Chris Hall, David Wagner
Abstract. We introduce the notion of key stretching, a mechanism to convert short s-bit keys into longer keys, such that the complexity required to brute-force search a s + t-bit keyspace is the same...
Twofish: A 128-Bit Block Cipher (1998)
Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, Niels Ferguson
Twofish is a 128-bit block cipher that accepts a variable-length key up to 256 bits. The cipher is a 16-round Feistel network with a bijective F function made up of four key-dependent 8-by-8-bit...
Building PRFs from PRPs (1998)
Chris Hall, David Wagner, John Kelsey, Bruce Schneier
. We evaluate constructions for building pseudo-random functions (PRFs) from pseudo-random permutations (PRPs). We present two constructions: a slower construction which preserves the security of the...
Twofish: A 128-Bit Block Cipher (1998)
Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, Niels Ferguson
Twofish is a 128-bit block cipher that accepts a variable-length key up to 256 bits. The cipher is a 16-round Feistel network with a bijective F function made up of four key-dependent 8-by-8-bit...
Side Channel Cryptanalysis of Product Ciphers (1998)
John Kelsey, Bruce Schneier, David Wagner, Chris Hall
Building on the work of Kocher[Koc96], Jaffe, and Yun [KJY98], we discuss the notion of side-channel cryptanalysis: cryptanalysis using implementation data. We discuss the notion of side-channel...
Secure Applications of Low-Entropy Keys (1998)
John Kelsey, Bruce Schneier, Chris Hall, David Wagner
We introduce the notion of key stretching, a mechanism to convert short s-bit keys into longer keys, such that the complexity required to brute-force search a s + t-bit keyspace is the same as the...
On the Twofish Key Schedule (1998)
Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, Niels Ferguson
Twofish is a new block cipher with a 128 bit block, and a key length of 128, 192, or 256 bits, which has been submitted as an AES candidate. In this paper, we briefly review the structure of Twofish,...
On The Twofish Key Schedule (1998)
Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, Niels Ferguson
Twofish is a new block cipher with a 128 bit block, and a key length of 128, 192, or 256 bits, which has been submitted as an AES candidate. In this paper, we briefly review the structure of Twofish,...
Building PRFs from PRPs (1998)
Chris Hall, David Wagner, John Kelsey, Bruce Schneier
. We evaluate constructions for building pseudo-random functions (PRFs) from pseudo-random permutations (PRPs). We present two constructions: a slower construction which preserves the security of the...
Twofish: A 128-Bit Block Cipher (1998)
Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, Niels Ferguson
Twofish is a 128-bit block cipher that accepts a variable-length key up to 256 bits. The cipher is a 16-round Feistel network with a bijective F function made up of four key-dependent 8-by-8-bit...
Side Channel Cryptanalysis of Product Ciphers (1998)
John Kelsey, Bruce Schneier, David Wagner, Chris Hall
Building on the work of Kocher [Koc96], we introduce the notion of em side-channel cryptanalysis: cryptanalysis using implementation data. We discuss the notion of side-channel attacks and the...
Side Channel Cryptanalysis of Product Ciphers (1998)
John Kelsey, Bruce Schneier, David Wagner, Chris Hall
Building on the work of Kocher [Koc96], Jaffe, and Yun [KJY98], we discuss the notion of side-channel cryptanalysis: cryptanalysis using implementation data. We discuss the notion of side-channel...
Side Channel Cryptanalysis of Product Ciphers (1998)
John Kelsey, Bruce Schneier, David Wagner, Chris Hall
. Building on the work of Kocher [Koc96], we introduce the notion of side-channel cryptanalysis: cryptanalysis using implementation data. We discuss the notion of side-channel attacks and the...
Secure Applications of Low-Entropy Keys (1998)
John Kelsey, Bruce Schneier, Chris Hall, David Wagner
. We introduce the notion of key stretching, a mechanism to convert short s-bit keys into longer keys, such that the complexity required to brute-force search a s + t-bit keyspace is the same as the...
Building PRFs from PRPs (1998)
Chris Hall, David Wagner, John Kelsey, Bruce Schneier
. We evaluate constructions for building pseudo-random functions (PRFs) from pseudo-random permutations (PRPs). We present two constructions: a slower construction which preserves the security of the...
Building PRFs from PRPs (1998)
Chris Hall, David Wagner, John Kelsey, Bruce Schneier
We evaluate constructions for building pseudo-random functions (PRFs) from pseudo-random permutations (PRPs). We present two constructions: a slower construction which preserves the security of the...
Remote Electronic Gambling (1997)
We examine the problem of putting a casino on the Internet. We discuss fairly generating random bits and permutations for use in casino games, protecting against player/player and player/dealer...
Reaction Attacks Against Several Public-Key Cryptosystem (1997)
Chris Hall, Ian Goldberg, Bruce Schneier
. We present attacks against the McEliece Public-Key Cryptosystem, the Atjai-Dwork Public-Key Cryptosystem, and variants of those systems. Most of these systems base their security on the apparent...
An authenticated camera (1996)
John Kelsey, Bruce Schneier, Chris Hall
We develop protocols for an authenticated camera that allows people to verify that a given digital image was taken by a specific camera at a specific time and specific place. These protocols require...
Reaction Attacks Against Several Public-Key Cryptosystems (1996)
Chris Hall, Ian Goldberg, Bruce Schneier
We present attacks against the McEliece Public-Key Cryptosystem, the Atjai-Dwork Public-Key Cryptosystem, and variants of those systems. Most of these systems base their security on the apparent...
An Improved E-Mail Security Protocol (1991)
Bruce Schneier Chris, Chris Hall
Current e-mail security systems base their security on the secrecy of the long-term private key. If this private key is ever compromised, an attacker can decrypt any messages--- past, present, or...
Cryptanalytic Attacks on Pseudorandom Number Generators (1988)
John Kelsey Bruce, Bruce Schneier, David Wagner, Chris Hall
. In this paper we discuss PRNGs: the mechanisms used by real-world secure systems to generate cryptographic keys, initialization vectors, "random" nonces, and other values assumed to be...
The zebrafish lysozyme C promoter drives myeloid-specific expression in transgenic fish
Hall, Chris, Flores, Maria Vega, Storm, Thilo, Crosier, Kathy, Crosier, Phil
A Comparison of the Performance of SMEs in Korea and Taiwan: Policy Implications for Turbulent Times
A comparison of the role and performance of SMEs in Korea and Taiwan during the 1990s and early 2000s shows that the reputation for SMEs to be flexible in the face of adversity is well deserved, but...
Chris Hall, John Kelsey, Vincent Rijmen, Bruce Schneier, David Wagner
. The cipher family SPEED (and an associated hashing mode) was recently proposed in Financial Cryptography '97. This paper cryptanalyzes that proposal, in two parts: First, we discuss several...
Chris Hall, John Kelsey, Bruce Schneier, David Wagner
) Chris Hall 1 , John Kelsey 1 , Bruce Schneier 1 , and David Wagner 2 1 Counterpane Systems 101 E. Minnehaha Pkwy Minneapolis, MN 55419 (612) 823-1098 {hall,kelsey,schneier}@counterpane.com 2 U.C....
Chris Hall, John Kelsey, Vincent Rijmen, Bruce Schneier, David Wagner
. The cipher family SPEED (and an associated hashing mode) was recently proposed in Financial Cryptography '97. This paper cryptanalyzes that proposal, in two parts: First, we discuss several...
Performance Comparison of the AES Submissions
Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall
The principal goal guiding the design of any encryption algorithm must be security. In the real world, however, performance and implementation cost are always of concern. Making the assumption that...
Chris Hall, John Kelsey, Vincent Rijmen, Bruce Schneier, David Wagner
The cipher family SPEED (and an associated hashing mode) was recently proposed in Financial Cryptography '97. This paper cryptanalyzes that proposal, in two parts: First, we discuss several...
When the dragon awakes: Internationalisation of SMEs in China and implications for Europe
Klein- und Mittelunternehmen, Wirtschaftsstruktur, Branchenentwicklun, China, Small and medium-sized enterprises, Economic structure, Sectoral development