Whether or not you use a computer, you probably use a telephone, electric power, and a bank. Although you may not be aware of their presence, networked computer systems are increasingly becoming an integral part of your daily life. Yet, if such systems perform poorly or don''t work at all, then they can put life, liberty, and property at tremendous risk. Is the trust that we—as individuals and as a society—are placing in networked computer systems justified? And if it isn''t, what can we do to make such systems more trustworthy?

This book provides an assessment of the current state of the art procedures for building trustworthy networked information systems. It proposes directions for research in computer and network security, software technology, and system architecture. In addition, the book assesses current technical and market trends in order to better inform public policy as to where progress is likely and where incentives could help. Trust in Cyberspace offers insights into:

The strengths and vulnerabilities of the telephone network and Internet, the two likely building blocks of any networked information system. The interplay between various dimensions of trustworthiness: environmental disruption, operator error, "buggy" software, and hostile attack. The implications for trustworthiness of anticipated developments in hardware and software technology, including the consequences of mobile code. The shifts in security technology and research resulting from replacing centralized mainframes with networks of computers. The heightened concern for integrity and availability where once only secrecy mattered. The way in which federal research funding levels and practices have affected the evolution and current state of the science and technology base in this area.

You will want to read this book if your life is touched in any way by computers or telecommunications. But then, whose life isn''t?

Whether or not you use a computer, you probably use a telephone, electric power, and a bank. Although you may not be aware of their presence, networked computer systems are increasingly becoming an integral part of your daily life. Yet, if such systems perform poorly or don''t work at all, then they can put life, liberty, and property at tremendous risk. Is the trust that we—as individuals and as a society—are placing in networked computer systems justified? And if it isn''t, what can we do to make such systems more trustworthy?

This book provides an assessment of the current state of the art procedures for building trustworthy networked information systems. It proposes directions for research in computer and network security, software technology, and system architecture. In addition, the book assesses current technical and market trends in order to better inform public policy as to where progress is likely and where incentives could help. Trust in Cyberspace offers insights into:

The strengths and vulnerabilities of the telephone network and Internet, the two likely building blocks of any networked information system. The interplay between various dimensions of trustworthiness: environmental disruption, operator error, "buggy" software, and hostile attack. The implications for trustworthiness of anticipated developments in hardware and software technology, including the consequences of mobile code. The shifts in security technology and research resulting from replacing centralized mainframes with networks of computers. The heightened concern for integrity and availability where once only secrecy mattered. The way in which federal research funding levels and practices have affected the evolution and current state of the science and technology base in this area.

You will want to read this book if your life is touched in any way by computers or telecommunications. But then, whose life isn''t?

This text attempts to change the way we teach logic to beginning students. Instead of teaching logic as a subject in isolation, we regard it as a basic tool and show how to use it. We strive to give students a skill in the propo­ sitional and predicate calculi and then to exercise that skill thoroughly in applications that arise in computer science and discrete mathematics. We are not logicians, but programming methodologists, and this text reflects that perspective. We are among the first generation of scientists who are more interested in using logic than in studying it. With this text, we hope to empower further generations of computer scientists and math­ ematicians to become serious users of logic. Logic is the glue Logic is the glue that binds together methods of reasoning, in all domains. The traditional proof methods -for example, proof by assumption, con­ tradiction, mutual implication, and induction- have their basis in formal logic. Thus, whether proofs are to be presented formally or informally, a study of logic can provide understanding.

Concurrent computing is gaining ground in interest as it becomes increasingly feasible to implement distributed computing across networks of workstations. This book, by one of the subject's leading figures, provides a comprehensive survey of the subject beginning with proposotional logic and concluding with concurrent programming. It is based on graduate courses taught at Cornell University and is designed to be used as a graduate text. There are exercises at the end of each chapter to extend and illustrate the main themes covered. Professor Schneier emphasizes the use of formal methods and assertional reasoning using notation and paradigms drawn from programming to drive the exposition. As a result, all those interested in studying concurrent computing will find this to be an invaluable approach to the subject.

This text attempts to change the way we teach logic to beginning students. Instead of teaching logic as a subject in isolation, we regard it as a basic tool and show how to use it. We strive to give students a skill in the propo­ sitional and predicate calculi and then to exercise that skill thoroughly in applications that arise in computer science and discrete mathematics. We are not logicians, but programming methodologists, and this text reflects that perspective. We are among the first generation of scientists who are more interested in using logic than in studying it. With this text, we hope to empower further generations of computer scientists and math­ ematicians to become serious users of logic. Logic is the glue Logic is the glue that binds together methods of reasoning, in all domains. The traditional proof methods -for example, proof by assumption, con­ tradiction, mutual implication, and induction- have their basis in formal logic. Thus, whether proofs are to be presented formally or informally, a study of logic can provide understanding.

Concurrent computing is gaining ground in interest as it becomes increasingly feasible to implement distributed computing across networks of workstations. This book, by one of the subject''s leading figures, provides a comprehensive survey of the subject beginning with proposotional logic and concluding with concurrent programming. It is based on graduate courses taught at Cornell University and is designed to be used as a graduate text. There are exercises at the end of each chapter to extend and illustrate the main themes covered. Professor Schneier emphasizes the use of formal methods and assertional reasoning using notation and paradigms drawn from programming to drive the exposition. As a result, all those interested in studying concurrent computing will find this to be an invaluable approach to the subject.

Concurrent computing is gaining ground in interest as it becomes increasingly feasible to implement distributed computing across networks of workstations. This book, by one of the subject's leading figures, provides a comprehensive survey of the subject beginning with proposotional logic and concluding with concurrent programming. It is based on graduate courses taught at Cornell University and is designed to be used as a graduate text. There are exercises at the end of each chapter to extend and illustrate the main themes covered. Professor Schneier emphasizes the use of formal methods and assertional reasoning using notation and paradigms drawn from programming to drive the exposition. As a result, all those interested in studying concurrent computing will find this to be an invaluable approach to the subject.

This text attempts to change the way we teach logic to beginning students. Instead of teaching logic as a subject in isolation, we regard it as a basic tool and show how to use it. We strive to give students a skill in the propo­ sitional and predicate calculi and then to exercise that skill thoroughly in applications that arise in computer science and discrete mathematics. We are not logicians, but programming methodologists, and this text reflects that perspective. We are among the first generation of scientists who are more interested in using logic than in studying it. With this text, we hope to empower further generations of computer scientists and math­ ematicians to become serious users of logic. Logic is the glue Logic is the glue that binds together methods of reasoning, in all domains. The traditional proof methods -for example, proof by assumption, con­ tradiction, mutual implication, and induction- have their basis in formal logic. Thus, whether proofs are to be presented formally or informally, a study of logic can provide understanding.

Whether or not you use a computer, you probably use a telephone, electric power, and a bank. Although you may not be aware of their presence, networked computer systems are increasingly becoming an integral part of your daily life. Yet, if such systems perform poorly or don''t work at all, then they can put life, liberty, and property at tremendous risk. Is the trust that we—as individuals and as a society—are placing in networked computer systems justified? And if it isn''t, what can we do to make such systems more trustworthy?

This book provides an assessment of the current state of the art procedures for building trustworthy networked information systems. It proposes directions for research in computer and network security, software technology, and system architecture. In addition, the book assesses current technical and market trends in order to better inform public policy as to where progress is likely and where incentives could help. Trust in Cyberspace offers insights into:

The strengths and vulnerabilities of the telephone network and Internet, the two likely building blocks of any networked information system. The interplay between various dimensions of trustworthiness: environmental disruption, operator error, "buggy" software, and hostile attack. The implications for trustworthiness of anticipated developments in hardware and software technology, including the consequences of mobile code. The shifts in security technology and research resulting from replacing centralized mainframes with networks of computers. The heightened concern for integrity and availability where once only secrecy mattered. The way in which federal research funding levels and practices have affected the evolution and current state of the science and technology base in this area.

You will want to read this book if your life is touched in any way by computers or telecommunications. But then, whose life isn''t?

Whether or not you use a computer, you probably use a telephone, electric power, and a bank. Although you may not be aware of their presence, networked computer systems are increasingly becoming an integral part of your daily life. Yet, if such systems perform poorly or don''t work at all, then they can put life, liberty, and property at tremendous risk. Is the trust that we—as individuals and as a society—are placing in networked computer systems justified? And if it isn''t, what can we do to make such systems more trustworthy?

This book provides an assessment of the current state of the art procedures for building trustworthy networked information systems. It proposes directions for research in computer and network security, software technology, and system architecture. In addition, the book assesses current technical and market trends in order to better inform public policy as to where progress is likely and where incentives could help. Trust in Cyberspace offers insights into:

The strengths and vulnerabilities of the telephone network and Internet, the two likely building blocks of any networked information system. The interplay between various dimensions of trustworthiness: environmental disruption, operator error, "buggy" software, and hostile attack. The implications for trustworthiness of anticipated developments in hardware and software technology, including the consequences of mobile code. The shifts in security technology and research resulting from replacing centralized mainframes with networks of computers. The heightened concern for integrity and availability where once only secrecy mattered. The way in which federal research funding levels and practices have affected the evolution and current state of the science and technology base in this area.

You will want to read this book if your life is touched in any way by computers or telecommunications. But then, whose life isn''t?

This text attempts to change the way we teach logic to beginning students. Instead of teaching logic as a subject in isolation, we regard it as a basic tool and show how to use it. We strive to give students a skill in the propo­ sitional and predicate calculi and then to exercise that skill thoroughly in applications that arise in computer science and discrete mathematics. We are not logicians, but programming methodologists, and this text reflects that perspective. We are among the first generation of scientists who are more interested in using logic than in studying it. With this text, we hope to empower further generations of computer scientists and math­ ematicians to become serious users of logic. Logic is the glue Logic is the glue that binds together methods of reasoning, in all domains. The traditional proof methods -for example, proof by assumption, con­ tradiction, mutual implication, and induction- have their basis in formal logic. Thus, whether proofs are to be presented formally or informally, a study of logic can provide understanding.

Concurrent computing is gaining ground in interest as it becomes increasingly feasible to implement distributed computing across networks of workstations. This book, by one of the subject's leading figures, provides a comprehensive survey of the subject beginning with proposotional logic and concluding with concurrent programming. It is based on graduate courses taught at Cornell University and is designed to be used as a graduate text. There are exercises at the end of each chapter to extend and illustrate the main themes covered. Professor Schneier emphasizes the use of formal methods and assertional reasoning using notation and paradigms drawn from programming to drive the exposition. As a result, all those interested in studying concurrent computing will find this to be an invaluable approach to the subject.

This text attempts to change the way we teach logic to beginning students. Instead of teaching logic as a subject in isolation, we regard it as a basic tool and show how to use it. We strive to give students a skill in the propo­ sitional and predicate calculi and then to exercise that skill thoroughly in applications that arise in computer science and discrete mathematics. We are not logicians, but programming methodologists, and this text reflects that perspective. We are among the first generation of scientists who are more interested in using logic than in studying it. With this text, we hope to empower further generations of computer scientists and math­ ematicians to become serious users of logic. Logic is the glue Logic is the glue that binds together methods of reasoning, in all domains. The traditional proof methods -for example, proof by assumption, con­ tradiction, mutual implication, and induction- have their basis in formal logic. Thus, whether proofs are to be presented formally or informally, a study of logic can provide understanding.

Concurrent computing is gaining ground in interest as it becomes increasingly feasible to implement distributed computing across networks of workstations. This book, by one of the subject''s leading figures, provides a comprehensive survey of the subject beginning with proposotional logic and concluding with concurrent programming. It is based on graduate courses taught at Cornell University and is designed to be used as a graduate text. There are exercises at the end of each chapter to extend and illustrate the main themes covered. Professor Schneier emphasizes the use of formal methods and assertional reasoning using notation and paradigms drawn from programming to drive the exposition. As a result, all those interested in studying concurrent computing will find this to be an invaluable approach to the subject.

Concurrent computing is gaining ground in interest as it becomes increasingly feasible to implement distributed computing across networks of workstations. This book, by one of the subject's leading figures, provides a comprehensive survey of the subject beginning with proposotional logic and concluding with concurrent programming. It is based on graduate courses taught at Cornell University and is designed to be used as a graduate text. There are exercises at the end of each chapter to extend and illustrate the main themes covered. Professor Schneier emphasizes the use of formal methods and assertional reasoning using notation and paradigms drawn from programming to drive the exposition. As a result, all those interested in studying concurrent computing will find this to be an invaluable approach to the subject.

This text attempts to change the way we teach logic to beginning students. Instead of teaching logic as a subject in isolation, we regard it as a basic tool and show how to use it. We strive to give students a skill in the propo­ sitional and predicate calculi and then to exercise that skill thoroughly in applications that arise in computer science and discrete mathematics. We are not logicians, but programming methodologists, and this text reflects that perspective. We are among the first generation of scientists who are more interested in using logic than in studying it. With this text, we hope to empower further generations of computer scientists and math­ ematicians to become serious users of logic. Logic is the glue Logic is the glue that binds together methods of reasoning, in all domains. The traditional proof methods -for example, proof by assumption, con­ tradiction, mutual implication, and induction- have their basis in formal logic. Thus, whether proofs are to be presented formally or informally, a study of logic can provide understanding.