Browsing by Subject "Xifratge (Informàtica)"
Now showing items 1-20 of 26
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Análisis Side-Channel mediante aprendizaje automático (machine learning): estudio de técnicas y aplicabilidad
(Universitat Politècnica de Catalunya, 2017-07-04)
Bachelor thesis
Restricted access - confidentiality agreement
Covenantee: Applus+ -
Analysis and implementation of a SSO solution for several web portal
(Universitat Politècnica de Catalunya / Aalto University, 2012-08)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Aalto-yliopisto. Sähkötekniikan korkeakouluAnalysis and implementation of a SSO solution for several web portal. -
Critical analysis and comparison of data protection techniques for genomics data sets
(Universitat Politècnica de Catalunya, 2016-07-04)
Master thesis
Open AccessThis work reviews the current literature on protecting genomic information. The goal is to provide insight on how to define a secure file format for such data. We compare the published ideas to the requirements defined by ... -
Cryptanalysis and improvement of chen-hsiang-shih's remote user authentication scheme using smart cards
(2013-09)
Article
Open AccessRecently, Chen-Hsiang-Shih proposed a new dynamic ID-based remote user authentication scheme. The authors claimed that their scheme was more secure than previous works. However, this paper demonstrates that theirscheme is ... -
Delegació verificable del càlcul de polinomis
(Universitat Politècnica de Catalunya, 2013-02-15)
Master thesis (pre-Bologna period)
Open Access[ANGLÈS] Algorithms to delegate the evaluation of some polynomial, private or not, at some point, private or not, to an untrusted entity. -
Efficient privacy preserving predicate encryption with fine-grained searchable capability for cloud storage
(2016-06-01)
Article
Open AccessWith the fast development in Cloud storage technologies and ever increasing use of Cloud data centres, data privacy and confidentiality has become a must. Indeed, Cloud data centres store each time more sensitive data such ... -
Energy-efficient secure outsourcing decryption of attribute based encryption for mobile device in cloud computation
(Springer, 2017-12-29)
Article
Open AccessIn this paper two new ways for efficient secure outsourcing the decryption of key-policy attribute-based encryption (KP-ABE) with energy efficiency are proposed. Based on an observation about the permutation property of ... -
Estudi i millora d'esquemes de clau pública de llindar
(Universitat Politècnica de Catalunya, 2012-06-18)
Master thesis (pre-Bologna period)
Open Access[ANGLÈS] Survey of different encryption schemes emphasizing the improvements on the efficiency and the security of each scheme. Study of Groth-Sahai zero-knowledge proofs. Proposal of a fully secure threshold public key ... -
ETSI EN 319 162-1 v1.1.1. Associated Signature Containers (ASiC). Part 1: Building blocks and ASiC baseline containers
(2016-04-01)
External research report
Open AccessEuropean standard that specifies a format for containers enclosing XAdES and CAdES digital signatures and detached signed documents. It also specifies a baseline profile that minimizes the degree of optionality in the ... -
ETSI EN 319 162-2 v1.1.1. Associated Signature Containers (ASiC). Part 2: Additional ASiC containers
(2016-04-01)
External research report
Open AccessPart 1 of the present multi-part deliverable, ETSI EN 319 162-1 [2] (ASiC part 1 henceforth) specifies the use of container structures for associating either detached CAdES [1] signatures or detached XAdES [i.7] ... -
Firmas digitales en Prisma
(Universitat Politècnica de Catalunya, 2007-07-05)
Master thesis (pre-Bologna period)
Open Access -
Identity based proxy re-encryption scheme (IBPRE+) for secure cloud data sharing
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Open AccessIn proxy re-encryption (PRE), a proxy with re-encryption keys can transfer aciphertext computed under Alice's public key into a new one, which can be decrypted by Bob only with his secret key. Recently, Wang et al. introduced ... -
Implementación del algoritmo AES en un microcontrolador PIC18F
(Universitat Politècnica de Catalunya, 2017-06-15)
Bachelor thesis
Open AccessActualmente, la criptografía tiene un importante papel en la vida cotidiana. Es la encargada de mantener la privacidad y la confidencialidad en los diferentes tipos de comunicaciones: correos electrónicos, compras, banca ... -
Information-theoretical Secret-key agreement and Bound information
(Universitat Politècnica de Catalunya, 2009-02-25)
Master thesis
Open AccessOne big problem of the communication between two parties is the secrecy. That means how much information a third party can obtain by intercepting the messages transmitted from one honest party to the other one. Therefore ... -
New efficient chosen ciphertext secure Elgamal encryption schemes for secure cloud storage service
(2017)
Article
Restricted access - publisher's policyNowadays Cloud computation has become a commonplace information service paradigm for all actors in ICT field, from individuals to big corporates. In particular, Cloud platforms and data centres are being used each time ... -
Non-transferable unidirectional proxy re-encryption scheme for secure social cloud storage sharing
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Open AccessProxy re-encryption (PRE), introduced by Blaze et al. in 1998, allows a semi-trusted proxy with the re-encryption key to translatea ciphertext under the delegator into another ciphertext, which can be decrypted by the ... -
On the self-similarity nature of the revocation data
(Springer, 2012)
Conference report
Restricted access - publisher's policyOne of the hardest tasks of a Public Key Infrastructure (PKI) is to manage revocation. Different revocation mechanisms have been proposed to invalidate the credentials of compromised or misbe- having users. All these ... -
On the use of error detecting and correcting codes to boost security in caches against side channel attacks
(2015)
Conference report
Open AccessMicroprocessor memory is sensitive to cold boot attacks. In this kind of attacks, memory remanence is exploited to download its content after the microprocessor has been struck by a hard boot. If just in this moment, a ... -
PRE+: dual of proxy re-encryption for secure cloud data sharing service
(2018-01)
Article
Open AccessWith the rapid development of very large, diverse, complex, and distributed datasets generated from internet transactions, emails, videos, business information systems, manufacturing industry, sensors and internet of things ... -
Reusable garbled gates for new fully homomorphic encryption service
(2017-02-06)
Article
Open AccessIn this paper, we propose a novel way to provide a fully homomorphic encryption service, namely by using garbled circuits. From a high level perspective, garbled circuits and fully homomorphic encryption, both aim at ...
