A quantum string seal encodes the value of a (bit) string as a quantum state in such a way that everyone can extract a non-negligible amount of available information on the string by a suitable measurement. Moreover, such measurement must disturb the quantum state and is likely to be detected by an authorized verifier. In this way, the intactness of the encoded quantum state plays the role of a...

Security warnings seem to be a predominant way to bridge the gap of providing rich, but potentially insecure, functionality and providing security. In this study, we investigate the effectiveness of so-called security by admonition. We present users with a web-based survey that requests the installation of a potentially insecure ActiveX component. We show that the security warning deters users ...

Computer networks today typically do not provide any mechanisms to the users to learn, in a reliable manner, which paths have (and have not!) been taken by their packets. Rather, it seems inevitable that as soon as a packet leaves the network card, the user is forced to trust the network provider to forward the packets as expected or agreed upon. This can be undesirable, especially in the light...

Security warnings seem to be a predominant way to bridge the gap of providing rich, but potentially insecure, functionality and providing security. In this study, we investigate the effectiveness of so-called security by admonition. We present users with a web-based survey that requests the installation of a potentially insecure ActiveX component. We show that the security warning deters users ...

OBJECTIVE To study the processes by which donor-conceived children incorporate donor conception into their subjective sense of identity. DESIGN Cross-sectional. SETTING Family homes. PATIENT(S) Nineteen donor-conceived adolescents. INTERVENTION(S) Administration of an interview and questionnaire. MAIN OUTCOME MEASURE(S) The mother-child relationship was assessed through the Friends an...