In this paper, we present the first certificateless undeniable signature scheme. The scheme does not suffer from the key escrow problem, which is inherent in identity based cryptosystems. Also it can avoid the onerous management of certificates. Particularly, by using some cryptographic and mathematical techniques, we guarantee that the scheme’s two component protocols satisfy the properties of...

BACKGROUND A sense of security is important for experiences of parenthood in the early postpartum period. The objectives of this study were to evaluate two models of postnatal care using a questionnaire incorporating the Parents' Postpartum Sense of Security (PPSS) instrument and to test the validity of the PPSS instrument. METHODS Postal surveys were sent to 234 mothers who had experienced t...

Over the past decade, there has been an explosion of interest in clinical applications of attachment theory. In the present article, we briefly describe John Bowlby's model of therapeutic change, the therapeutic relationship, and the therapist's role in emotional healing. We then review empirical evidence for three key propositions in Bowlby's model. First, a client's sense of security during t...

The purpose of this study was to evaluate the impact a cybercrime prevention campaign that run by Canadian financial institution. More specifically, we examined how participants/clients perceived institution’s initiative inform them about cybercrimes. also explored whether or not had desired effect, which reinforce clients’ sense security. This took place on October 2018 and 1452 adults (831 ma...