Results 11 to 20 of about 412,934 (237)

Practical Symmetric On-Line Encryption [PDF]

open access: yes, 2003
This paper addresses the security of symmetric cryptosystems in the blockwise adversarial model. At Crypto 2002, Joux, Martinet and Valette have proposed a new kind of attackers against several symmetric encryption schemes. In this paper, we first show a generic technique to thwart blockwise adversaries for a specific class of encryption schemes.
Pierre-Alain Fouque   +2 more
openaire   +3 more sources

Nonce-Based Symmetric Encryption [PDF]

open access: yes, 2004
Symmetric encryption schemes are usually formalized so as to make the encryption operation a probabilistic or state-dependent function e of the message M and the key K: the user supplies M and K and the encryption process does the rest, flipping coins or modifying internal state in order to produce a ciphertext C.
Phillip Rogaway
core   +4 more sources

Symmetric Public-Key Encryption [PDF]

open access: yes, 2007
Public-key encryption would seem to be inherently asymmetric. in that only messages sent to a user can be encrypted using his public key. We demonstrate that the use of interactive protocols for sending encrypted messages enables a symmetric use of public keys; we give cryptographic protocols for the following tasks: 1.
Galil, Zvi, Landau, Gad M., Yung, Moti
openaire   +5 more sources

Substring-Searchable Symmetric Encryption [PDF]

open access: yesProceedings on Privacy Enhancing Technologies, 2015
Abstract In this paper, we consider a setting where a client wants to outsource storage of a large amount of private data and then perform substring search queries on the data – given a data string s and a search string p, find all occurrences of p as a substring of s.
Melissa Chase, Emily Shen
core   +5 more sources

Property Preserving Symmetric Encryption Revisited [PDF]

open access: yes, 2015
At EUROCRYPTi¾?2012 Pandey and Rouselakis introduced the notion of property preserving symmetric encryption which enables checking for a property on plaintexts by running a public test on the corresponding ciphertexts. Their primary contributions are: i a separation between 'find-then-guess' and 'left-or-right' security notions; ii a concrete ...
Sanjit Chatterjee, M. Prem Laxman Das
openaire   +4 more sources

Symmetrical Disguise: Realizing Homomorphic Encryption Services from Symmetric Primitives [PDF]

open access: yes, 2023
Homomorphic Encryption (HE) is a modern cryptographic technique that allows direct computations on encrypted data. While relatively new to the mainstream debate, HE has been a solid topic in research for decades.
Frimpong, E., Michalas, A., Bakas, A.
core   +1 more source

Intelligent Banking XML Encryption Using Effective Fuzzy Classification [PDF]

open access: yes, 2014
In this chapter we present a novel approach for securing financial XML transactions using an effective and intelligent fuzzy classification technique. Our approach defines the process of classifying XML content using a set of fuzzy variables.
Lu, Joan   +2 more
core   +3 more sources

Rethinking Searchable Symmetric Encryption

open access: yes2023 IEEE Symposium on Security and Privacy (SP), 2023
ISBN:978-1-6654-9336 ...
Zichen Gui   +2 more
openaire   +2 more sources

Hybridized Cryptographic Encryption and Decryption Using Advanced Encryption Standard and Data Encryption Standard

open access: yesCybernetics and Information Technologies, 2023
This research proposes an efficient hybridized approach for symmetrical encryption of image files in bitmap formats. Due to the heavy use of lightweight encryption in fields such as military and corporate workplaces, intruders try to intercept ...
Kanshi Avaneesh   +3 more
doaj   +1 more source

Symmetric and Asymmetric Encryption [PDF]

open access: yesACM Computing Surveys, 1979
All cryptosystems currently m use are symmetrm m the sense that they require the transmitter and receiver to share, m secret, either the same pmce of reformation (key) or one of a paLr of related keys easdy computed from each other, the key is used m the encryption process to introduce uncertainty to an unauthorized receiver.
openaire   +3 more sources

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