Practical Identity, Obligation, and Sociality

Universalizability and Practical Identity

universalizability and practical identity

a familiar criticism of kant, made by hegel and his followers, j .s. mill and others, is that there are no maxims that are in fact contradictory, as required for morality on kant's view. in this paper, i discuss the suggestion that our capacity for rational reflection itself implies universality, and that it is this universality that obliges us to act morally. i consider the idea that self...

Personal Identity and Practical Concerns

Many philosophers have taken there to be an important relation between personal identity and several of our practical concerns (among them moral responsibility, compensation, and self-concern). I articulate four natural methodological assumptions made by those wanting to construct a theory of the relation between identity and practical concerns, and I point out powerful objections to each assum...

Secure and practical identity-based encryption

In this paper, we present a variant of Waters’ Identity-Based Encryption scheme with a much smaller public-key size (only a few kilobytes). We show that this variant is semantically secure against passive adversaries in the standard model. In essence, the new scheme divides Waters’ public key size by a factor ` at the cost of (negligibly) reducing security by ` bits. Therefore, our construction...

Secure and {\sl Practical} Identity-Based Encryption

In this paper, we present a variant of Waters’ Identity-Based Encryption scheme with a much smaller public-key size (only a few kilobytes). We show that this variant is semantically secure against passive adversaries in the standard model. In essence, the new scheme divides Waters’ public key size by a factor l at the cost of (negligibly) reducing security by l bits. Therefore, our construction...