摘要21 世纪是信息的时代. 信息成为一种重要的战略资源, 信息的获取, 处理和安全保障能力
成为一个国家综合国力的重要组成部分. 信息安全事关国家安全, 事关社会稳定. 因此 …

Agriculture planning plays a significant role in economic growth and food security of agro-
based country. Se-lection of crop (s) is an important issue for agriculture planning. It …

Cryptographic computations are often carried out on insecure devices for which the threat of
key exposure represents a serious and realistic concern. In an effort to mitigate the damage …

This paper provides either security proofs or attacks for a large number of identity-based
identification and signature schemes defined either explicitly or implicitly in existing …

In this paper we describe a new identity-based signcryption (IBSC) scheme built upon
bilinear maps. This scheme turns out to be more efficient than all others proposed so far. We …

RFID-tags are becoming very popular tools for identification of products. As they have a
small microchip on board, they offer functionality that can be used for security purposes. This …

Identity-Based (IB) cryptography is a rapidly emerging approach to public-key cryptography
that does not require principals to pre-compute key pairs and obtain certificates for their …

The only known construction of identity-based signatures that can be proven secure in the
standard model is based on the approach of attaching certificates to non-identity-based …

In this work we revisit and formally study the notion of proxy cryptography. Intuitively, various
proxy functions allow two cooperating parties F (the “FBI”) and P (the “proxy”) to duplicate …

We aim to understand, formalize and provably achieve the goals underlying the core key-
ratcheting technique of Borisov, Goldberg and Brewer, extensions of which are now used in …