Key Holder Research Articles

패션문화상품 디자인 개발을 위한 가야문화에 대한 인지도 조사

The 21st century directs designomics to achieve wealth by designing old beyond a simple recognition of the importance of culture. One of the representative local cultures of Gyeongnam is Gaya culture. The Gaya period had over 600 years history with rich and excellent iron manufacturing skill and advanced pottery culture. It is the very time to reevaluate the importance of Gaya equivalent to the Three Kingdoms in our ancient history which was has been so far ignored and isolated. In order to develop unique and excellent culture of Gaya as local fashion cutural goods, questionnaire survey on the recognition of Gaya culture and cultural goods purchasing status had been conducted to target visitors of Representative National Museum. Data Analysis Using SPSS 18.0 Win was performed with frequency analysis and t-test. As to the questionnaire survey, important criteria for purchasing in case of buying cultural goods could be found and the residents in Gyeongnam had higher recognition of developing cultural goods by the motif of Gaya relics. `Mounted vessel in the shape of warrior on horseback(12.4%)` and `Chariot wheel-shaped Pottery(10.8%)` were selected the most suitable motif, `Cellphone strap(11.0%)` and `key holder(10.2%), `cup (7.2%)`were selected the most suitable item of cutural goods. These will be actively reflected in the development of fashion cultural goods design applying Gaya relics.

Attribute-based encryption schemes with constant-size ciphertexts

Attribute-based encryption (ABE), as introduced by Sahai and Waters, allows for fine-grained access control on encrypted data. In its key-policy flavor (the dual ciphertext-policy scenario proceeds the other way around), the primitive enables senders to encrypt messages under a set of attributes and private keys are associated with access structures that specify which ciphertexts the key holder will be allowed to decrypt. In most ABE systems, the ciphertext size grows linearly with the number of ciphertext attributes and the only known exception only supports restricted forms of access policies. This paper proposes the first attribute-based encryption (ABE) schemes allowing for truly expressive access structures and with constant ciphertext size. Our first result is a ciphertext-policy attribute-based encryption (CP-ABE) scheme with O(1)-size ciphertexts for threshold access policies and where private keys remain as short as in previous systems. As a second result, we show that a certain class of identity-based broadcast encryption schemes generically yields monotonic key-policy attribute-based encryption (KP-ABE) systems in the selective set model. Our final contribution is a KP-ABE realization supporting non-monotonic access structures (i.e., that may contain negated attributes) with short ciphertexts. As an intermediate step toward this result, we describe a new efficient identity-based revocation mechanism that, when combined with a particular instantiation of our general monotonic construction, gives rise to the most expressive KP-ABE realization with constant-size ciphertexts. The downside of our second and third constructions is that private keys have quadratic size in the number of attributes. On the other hand, they reduce the number of pairing evaluations to a constant, which appears to be a unique feature among expressive KP-ABE schemes.

Shamir Threshold Based Encryption

This paper Shamir threshold scheme based on the protection of private keys, by constructing a Lagrange interpolating polynomial to achieve in the real environment using the key shared information systems, computation and communication in the case of less , the program can prevent the system key is lost, damaged, and from the enemy's attack, reduce the responsibility of the key holder, but also can reduce the success rate of an adversary to decipher the key. An example is the feasibility of the program.

Prêt à Voter with Paillier encryption

It is immensely challenging to devise a voting system that guarantees both the correct reflection of the will of the voters and the secrecy of the ballots, based solely on compelling, objective evidence. In response to this challenge, various voting protocols have been proposed, typically using cryptography, that seek to base the assurance of accuracy on transparency and auditability. This approach is neatly captured by the maxim “verify the election results, not the voting system!”. Such protocols strive to achieve a new requirement, that of voter-verifiability: voters are able to confirm that their vote is accurately counted while maintaining ballot secrecy. This paper describes the concept of voter-verifiability, and it outlines a particular voting protocol, the Prêt à Voter protocol, for achieving voter-verifiability. A new version of the protocol that exploits some special features of the Paillier encryption algorithm is presented. This gives a more elegant and robust implementation of Prêt à Voter than the previous versions. In particular, the fact that Paillier encryption allows the secret key holder to recover the randomisation as well as the plaintext, enables a simplified auditing of the ballot receipts and avoids the need to provide Zero-Knowledge Proofs. The use of Verified Random Functions is proposed as a way to prevent any manipulation undermining the secrecy requirements. Finally, a new construction of the ballot forms used in the Prêt à Voter protocol is presented that allows the ballot forms to carry full permutations of the candidates rather than simple cyclic shifts of earlier, re-encryption mix versions of this protocol.

Forecasting systems for e-government

The term e-government refers to the use by government agencies of information technologies that have the ability to upgrade relations with citizens, businesses, and other arms of government. So far, most e-government activity has focused on publishing information via the internet rather than actively interacting with citizens (G2C) or business enterprises (G2B). Forecasting is undoubtedly one of the key processes in operations management and is based on sufficient historic data. Government is the key holder of the majority of crucial databases in the market and projections of those data are pretty important. Thus, forecasting systems are more than necessary for an effective government. Sectors such as healthcare management, real estate market, and financial markets are in great need of adequate forecasts. In the 21st century, e-forecasting replaces traditional forecasting and evangelises an indispensable part of e-government in a rapidly changing cyber world. This study presents a survey on the available bibliography and applications of forecasting systems within the e-government framework and proposes the basic architectural elements of a forecasting system for e-government.

Self-locking drugs trolleys beneficial

I would like to reply to Sarah f Smithies letter ‘One way to safe medicines’ Oanuary 6). She suggests that a self-locking latch on the drugs trolley would prevent access by anyone except the key holder.

Quantum cryptography on multiuser optical fibre networks

To establish a secure communication channel, it is necessary to distribute between two users a key which allows safe encryption and decryption of messages. But because decryption is a simple task for any key holder, it is crucial that the key remains secret during distribution. Secrecy cannot be guaranteed if distribution occurs on the basis of classical physical mechanisms, as it is impossible to know whether the key has been intercepted during transmission. Quantum cryptography1–3 provides a fundamental solution to this problem. When quantum-mechanical processes are used to establish the key, any eavesdropping during transmission leads to an unavoidable and detectable disturbance in the received key information. Quantum cryptography has been demonstrated using standard telecommunication fibres linking single pairs of users4–8, but practical implementations will require communication networks with many users9. Here I introduce a practical scheme for multi-user quantum cryptography, and demonstrate its operation on an optical fibre network. The scheme enables a single controller on the network to establish, and regularly update, a distinct secret key with each network user. These keys can then be used to securely encrypt conventional data transmissions that are broadcast on the network.

Survey of Academic Branch Chemicstry Libraries Regarding Their Key Holder Policies

Results of a nation-wide survey of academic branch chemistry libraries show that the majority issue keys to non-library personnel to provide access to their collections during hours the library is cloased. These same libraries report losses to their collections that are average to excessive. Libraries that do not allow after hours access report losses minimal to average. Libraries that no longer issue keys to non-library personnel for after hours access said they they were able to change the policy based on high collection losses.