DistOS-2011W Justice

Members

• Matthew Chou
• Mike Preston
• Thomas McMahon
• David Barrera

Note: research so far moved to Discussion section.

What is Justice?

To understand how justice can be incorporated into a distributed computer system it is critical to understand what justice is. In this section we discuss key concepts related to justice and provide some thoughts on how human justice theory can be related to justice in terms of computing.

Theory of Justice

For our purposes, we will discuss justice as it relates to punishment. From a philosophical point of view, there are 3 main categories of punishment; Teleologic, Retributive, and Teleologic Retributive. [3]

Teleologic:

The teleologic view of punishment is that any punishment should always be accompanied by some beneficial effect. Even though the act of punishing someone may itself be considered “evil”, the overall punishment will be considered “good” if it provides some form of social benefit to the society. For example, if a criminal is punished for a crime and this punishment serves to dissuade potential criminals from committing future crimes, then the overall social value of the punishment is positive.[3]

Punishment from this perspective provides a good model for computer systems as any criminal act will be handled such that punishment is beneficial for the system. A simple example of such a transaction can be visualized through the management of bandwidth. If there is a particular computer who is deemed to be a criminal bandwidth hog, using more resources than it is allowed, the perpetrator’s network connection may be throttled. This punishment would correct the deviant computer while free the resources for other computers in the system to utilize.

Retributive:

Retributive punishment is defined by the belief that punishment itself is either just or intrinsically valuable even if there is social benefit to the punishment. This view is probably best characterised by the phrase “eye for an eye”. Essentially punishment is dispensed because it is necessary to inflict harm on those who do bad things but society may not get any benefit from the punishment.[3] The point of view of retributive punishment is that it is better to punish someone who commits a crime regardless of the severity of the punishment.[2]

It is also important to discuss retributive punishment in comparison to retaliation. Although they both incorporate the concept punishment as a just, and necessary, act, they have very different goals. Retribution focuses on the wrongdoing of the criminal whereas retaliation is based on the right of the victim to seek punishment. Retaliation is based on the concept of deterrence; if you are convicted of a crime then someone will get to exact revenge and thus you will pay a price. Retribution requires a criminal to pay a price for the crime committed and thus he should internalize how the crime has a negative effect on society. [1]

Although the necessity of punishment is certainly true, it is hard to see a situation where truly retributive punishment is beneficial for a computer system. Since computers on a distributed system are sharing finite resources, inflicting punishment on criminal computers, without considering the benefit/harm to the society, may result in further negative effects on the system. If a crime has been committed, the effects of that crime have already had an effect on the computing system. Punishing the perpetrator of the criminal act will not reverse the effect of the act, and it may adversely affect the system.

For example, suppose a computer is caught conducting spam attacks on other computers and the punishment for this act is to remove the computer from the network. It may be the case that the criminal computer had previously provided a very efficient connection to some data set but now there is no way to communicate with this computer. As a result, members of the remaining network must use a less efficient connection to reach the same data, thus the punishment had a negative effect on the system.

Teleologic Retributive:

This third view of punishment combines the concept of the need to punish within the limits of what is considered reasonable punishment for the crime. From this perspective, punishment is necessary and provides a valuable service to society but it is only enforced within acceptable limits.

To illustrate this view of punishment, consider the spam attack example from the retributive section above. If the punishment is reduced from being removed from the network to simply blocking a specific type of communication originating from the criminal computer, then it would be considered a teleological retributive punishment. This new punishment would match the severity of the crime but also still allows the other computers on the network to utilize the efficient network path through the criminal computer.

Structure of Punishment

To maintain a stable and efficient distributed system, punishment requires structure, or more accurately, there needs to be some power imbalance designed within the system such that some computers can hand out punishments upon other, criminal computers. Here we will briefly discuss a few methods which may be used to implement a penal system into a society.

Sovereign Rule:

In the 1600s, Thomas Hobbes wrote a dissertation on how government and society should be structured. Within this work Hobbes discusses how punishment should be handled by a sovereign ruler. In this system, there is a known set of laws which originate from a single entity which exists above the law. This sovereign ruler is the highest authority of the law, but he may assign lesser judges who may carry out punishment in accordance to the laws.[4]

In this system, breaking the law is never excusable as the law is known to all members of the society. The exception to this are any members of society that are without reason, for example “children and madmen”. Punishment is a necessary evil and the sovereign has the right to punish any criminal in order to protect the “commonwealth”. The sovereign can even order other subjects to punish criminals but he may not order a criminal to punish himself as this violates the law of self preservation. To balance the system the sovereign may also reward individuals and thus the balance of punishment and reward are the “nerves and joints which move the limbs of a commonwealth.”[4]

Essentially, sovereign rule is one overall leader of justice who determines what is right and wrong in order to best serve the needs of a system.

Corporal Punishment. Economic Punishment, and Prison:

Human punishment commonly falls into three overlapping categories; corporal punishment, economic punishment, and prison. Corporal punishment involves inflicting pain or possibly disfiguring a criminal in response to the crime committed. The main idea is that the criminal should serve as a demonstration of the terrible things that befall those who break the law. Furthermore, any criminal who is disfigured must live with a visual reminder of the act they committed, thus imparting shame upon the perpetrator and allowing others in society to form a conceptual model of the type of person that individual is.[5]

Economic punishment is forcing a criminal to pay a fine for the act committed. The main idea is to make criminals internalize the social costs of the crime they committed. The penalty fine imposed upon the criminal may not be equal to the social cost of the crime committed but it should cause the criminal the same amount of distress as the crime that was committed. [1] Prison is a modern method of punishment by which criminals are forced to exist under the watch of professionals and it is up to the discretion of the professionals as to when the punishment is complete. For example, it is up to lawyers, judges, psychologists and prison guards determine when a criminal’s prison sentence has ended.[5]

These three methods are not mutually exclusive as commonly criminals may be asked to pay a penalty fine as well as serve a prison sentence; however they all serve different purposes. All three punishment types serve as a deterrent to future criminals but each method has a different active agent; corporal punishment uses shame, economic punishment uses monetary handicapping, and prison focuses on reducing personal freedoms. These three concepts may be very useful to a distributed computer justice system.

Addition Concepts Related to Justice

Purpose of Justice:

John Rawls provides a definition of the purpose of justice as providing two primary functions; first, justice assigns rights and duties for the basic institutions of society, and second, justice describes the best way to distribute the benefits and burdens of society. [1] This view fits well within the scope of justice for a distributed computing system as there are very clear roles which can be assigned and there are finite resources which can be used to manage the “benefits and burdens” of society. These roles will be further discussed later in this article.

Morality

For a system of justice to be effective, a known moral code must exist within the society. Friedrich Nietzsche provides one interpretation of morality based on social position which is divided into two categories; “master-morality” and “slave-morality”. Master-morality is split based on good vs. bad, for example, good would be things like wealth, strength, health, and power, while bad is associated terms like poor, weak, sick, and pathetic. Slave-morality, on the other hand, is based on good vs. evil, for example, good would be terms like charity, piety, restraint, meekness, submission, while evil terms are worldly, cruel, selfish, wealthy, and aggressive.[6]

Although some of these terms make no sense in the realm of computers, others certainly could work as a basis for computer morality. For example, if there were measure of strength, health, wealth based on network and data concepts like bandwidth, latency, data integrity, etc. than certain computers could be more "good" than others. Similarly, if computers were acting selfishly, cruelly or aggressively (say DoS or spam attacks) then those computers would be considered as morally "bad". Based on these moral evaluations, computers could have relationships created or destroyed. Moreover, relationship parameters could be given to computers so that if you don't care how something gets accomplished (whether it is morally good or not) then you could tell your computer to allow less moral interactions to occur.

If morality was introduced to a distributed computer system that already has a reliable reputation mechanism, then all computers would be able to know how other computers behave "socially”. This would further allow punishment methods based on shame, to be exacted based on how "bad" a computer’s moral code is. An offending would then have to rebuild a positive moral reputation before it could participate in more trusted social interactions.

Justice Involving Computers

How Justice applies to the realm of computers. This includes how a computer can be exposed to Justice vs. how the user would be involved in the Justice applied.

Crime and Punishment

A broad description of possible crimes committed within the scope of the class, and punishments for those within the system and attackers from without.

Concept: Justice Web

The Justice Web is a possible implementation that uses the research we have done so far. It is essentially an incrementally-deployable network system that shares resources with users within the same Justice Web, based on a morality rating. Evidence is logged so that those within the Web may be held accountable, and those without may be recorded and watched for future misbehaviour.

What it is

The Justice Web is an implementation that treats a network as a distributed system. Resources are shared among the users, based on some measure of trust. As the web grows, more computers become linked to each other within the web, making it harder to manage trust given to each member of the Web. Also, the Web should provide some shared protection for those within the network against external attacks.

Because of this, some sort of Justice System is needed to process evidence and sentence malicious computers. The Justice Web would need a computer or computers to act as the judge. After the judgement, the Justice Web would then need to enforce a penalty on the offender.

Resources

[1] Posner, Richard A., Retirbution and Related Concepts of Punishment, The Journal of Legal Studies Vol. 9 No. 1, University of Chicago Press, 1980. PDF

[2] Rawls, John, A Theory of Justice: Revised Edition, Harvard University Press, 2003. PDF (preview copy)

[3] Ezorsky, Gertrude, Philosophical Perspectives on Punishment, State University of New York Press, 1972. HTML (preview copy)

[4] Hobbes, Thomas, The Leviathon, first published 1651, republished by Forgotten Books, 2008. HTML

[5] Foucault, Michel, Discipline & Punish: The Birth of the Prison, Random House, New York, 1995. PDF (preview copy)

[6] Nietzsche, Friedrich, Ecce Homo & The Anarchist translated by Thomas Wayne, New York, 2004. PDF (preview copy)