An important missing link in the construction of secure systems is finding a practical way to establish a correspondence between a software specification and its implementation. In this paper, we show to make use of interface specifications to address this problem for the case of crypto-based Java

step towards a probabilistic climate prediction system we have carried out a grand ensemble (an ensemble of ensembles) exploring uncertainty in a state-of-the-art model. Uncertainty in model response is investigated using a perturbed physics ensemble 4 in which model parameters are set to alternative

constraintsystem, with only a linear blowup in the size of the system. The amplification step causes an increase in alphabet-size that is corrected by a (standard) PCP composition step. Iterative application of these two steps yields a proof for the PCP theorem. The amplification lemma relies on a new notion

provable secure protocols often have complex and obscure design, which leads to inefficiency and mistakes. To bridge the gap between cryptographic theory and practice, the Random Oracle Hypothesis was developed. This hypothesis allows to yield crypto protocols much more efficient than standard ones

Over the last years there has been an increasing research effort directed towards the automatic verification of infinite state systems, such as timed automata, hybrid automata, data-independent systems, relational automata, Petri nets, and lossy channel systems. We present a method for deciding

hash of data and hence integrity of data is verified, encryption and decryption service as provided by the same cloud storage provider, hence the data compromise could not be ruled out because same provider has access to both the security services as well as storage. Divide and rule technique can also

and authentication schemes in a code and area effective way. A simple assembler code is written and tested on the processor in order to verify the functionality of the processor core and coprocessors. The code implements a Davies-Meyer coding scheme and uses the Klein block cipher as a hash function. The GCC toolset

new logics. Since TAMTAM is programmed in the ISO-standard for Prolog [3], one has to define logics based on Prolog-style predicates, thus a basic knowledge of Prolog is absolutely necessary. Our aim is a generic tool that is specified and verified in a formal way. A lot of prooftools are available

Abstract. At Crypto’99, Fujisaki and Okamoto [8] presented a nice generic transformation from weak asymmetric and symmetric schemes into an IND-CCA hybrid encryption scheme in the Random Oracle Model. Two specific candidates for standardization were designed from this transformation: PSEC-2 [14

Abstract—TLS is possibly the most used protocol for secure communications, with a 18-year history of flaws and fixes, ranging from its protocol logic to its cryptographic design, and from the Internet standard to its diverse implementations. We develop a verified reference implementation of TLS 1