From the Publisher:
A valuable reference for the novice as well as for the expert who needs a wider scope of coverage within the area of cryptography, this book provides easy and rapid access of information and includes more than 200 algorithms and protocols; more than 200 tables and figures; more than 1,000 numbered definitions, facts, examples, notes, and remarks; and over 1,250 significant references, including brief comments on each paper.

Handbook of Applied Cryptography

Cryptosystem designers frequently assume that secrets will be manipulated in closed, reliable computing environments. Unfortunately, actual computers and microchips leak information about the operations they process. This paper examines specific methods for analyzing power consumption measurements to find secret keys from tamper resistant devices. We also discuss approaches for building cryptosystems that can operate securely in existing hardware that leaks information.

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Differential Power Analysis

1. The Advanced Encryption Standard Process.- 2. Preliminaries.- 3. Specification of Rijndael.- 4. Implementation Aspects.- 5. Design Philosophy.- 6. The Data Encryption Standard.- 7. Correlation Matrices.- 8. Difference Propagation.- 9. The Wide Trail Strategy.- 10. Cryptanalysis.- 11. Related Block Ciphers.- Appendices.- A. Propagation Analysis in Galois Fields.- A.1.1 Difference Propagation.- A.l.2 Correlation.- A. 1.4 Functions that are Linear over GF(2).- A.2.1 Difference Propagation.- A.2.2 Correlation.- A.2.4 Functions that are Linear over GF(2).- A.3.3 Dual Bases.- A.4.2 Relationship Between Trace Patterns and Selection Patterns.- A.4.4 Illustration.- A.5 Rijndael-GF.- B. Trail Clustering.- B.1 Transformations with Maximum Branch Number.- B.2 Bounds for Two Rounds.- B.2.1 Difference Propagation.- B.2.2 Correlation.- B.3 Bounds for Four Rounds.- B.4 Two Case Studies.- B.4.1 Differential Trails.- B.4.2 Linear Trails.- C. Substitution Tables.- C.1 SRD.- C.2 Other Tables.- C.2.1 xtime.- C.2.2 Round Constants.- D. Test Vectors.- D.1 KeyExpansion.- D.2 Rijndael(128,128).- D.3 Other Block Lengths and Key Lengths.- E. Reference Code.

The Design of Rijndael: AES - The Advanced Encryption Standard

A network-based sales system includes at least one buyer computer for operation by a user desiring to buy a product, at least one merchant computer, and at least one payment computer. The buyer computer, the merchant computer, and the payment computer are interconnected by a computer network. The buyer computer is programmed to receive a user request for purchasing a product, and to cause a payment message to be sent to the payment computer that comprises a product identifier identifying the product. The payment computer is programmed to receive the payment message, to cause an access message to be created that comprises the product identifier and an access message authenticator based on a cryptographic key, and to cause the access message to be sent to the merchant computer. The merchant computer is programmed to receive the access message, to verify the access message authenticator to ensure that the access message authenticator was created using the cryptographic key, and to cause the product to be sent to the user desiring to buy the product.

Network sales system

A bill pay system (figure 4) wherein participating consumers (12) pay bills (30) to participating billers (14) through a payment network (102) operating according to preset rules (104). The participating consumers (12) receive bills (3) from participating billers (14) (paper/mail bills, e-mail notices, implied bills for automatic debts) which indicate an amount, and a unique biller identification number (120). To authorize a remittance, a consumer (12) transmits (2) to its participating bank (16) a bill pay order (122) indicating a payment date, a payment amount, the consumer's account number with the biller (14), a source of funds (232) and the biller's (14) biller identification number, either directly or by reference to static data containing those data elements. Bank C (16) then submits a payment message (124) to a payment network (102), and the payment network (102), which assigns the biller reference numbers, forwards (268) the payment message to the biller's bank (18). For settlement, the consumer's bank (16) debits the consumer's (12) account and is obligated to a net position with the payment network (102); likewise, the biller's bank (18) receives a net position from the payment network (102) and credits the biller's bank account (268). If the consumer's bank (16) agrees to send non-reversible payment messages (124), the consumer's bank (16) does not submit the transaction until funds are good unless the consumer's bank (16) is willing to take the risk of loss if funds are not good, in the case of a guaranteed payment network (102).

Electronic bill pay system

Data security ciphers and their properties the data encryption standard using block cipher in practice authentication and integrity key management identity verification public key ciphers digital signatures electronic funds transfer and the intelligent token data security standards.

Security for Computer Networks: An Introduction to Data Security in Teleprocessing and Electronic Funds Transfer

Computer Networks and Their Protocols

Preparing the books to read every day is enjoyable for many people. However, there are still many people who also don't like reading. This is a problem. But, when you can support others to start reading, it will be better. One of the books that can be recommended for new readers is communication networks for computers. This book is not kind of difficult book to read. It can be read and understand by the new readers.

Communication Networks for Computers

A cipher function y = E(k,x) should appear to be a random function of both the key k and the plaintext x Any regular behaviour is of interest to the users In the extreme case regular properties might point to a weakness of the cipher Precautions are needed in the use of a cipher that has regular features This note describes five regular properties of the ‘Data Encryption Standard’ or DES, two of which have been described elsewhere, are included for completeness

Some Regular Properties of the ‘Data Encryption Standard’ Algorithm

Authenticators are widely used to protect payment messages againts active attack. They produce a number, sometimes called a ‘MAC’ which is a function of the whole message and a secrety key. the earlier name for them in banking was ‘test-key’, but this obsolescent term is confusing to cryptographers.

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Donald W. Davies

Papers

Security for Computer Networks: An Introduction to Data Security in Teleprocessing and Electronic Funds Transfer

Computer Networks and Their Protocols

Communication Networks for Computers

Some Regular Properties of the ‘Data Encryption Standard’ Algorithm

A message authenticator algorithm suitable for a mainframe computer