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Privacy for Private Key in Signatures
2009One of the important applications of digital signature is anonymous credential or pseudonym system. In these scenarios, it is essential that the identity of the signer is kept secret from any third party, except the trusted authority. The identity in such a system is uniquely identified by the secret key (or the signing key) rather than the public key,
Qianhong Wu +3 more
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Encoding Private Key in Fingerprint
2005Electronic transactions require secure electronic signature techniques, which can provide the authentication of the signing individual, non-repudiation of the signature and protection of the integrity of the document using strong cryptographic methods.
Ernö Jeges +2 more
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On Storing Private Keys in the Cloud
2014Many future applications, such as distributed social networks, will rely on public-key cryptography, and users will want to access them from many locations. Currently, there is no way to store private keys “in the cloud” without placing complete faith in a centralised operator.
Jonathan Anderson, Frank Stajano
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2017
Multi-key fully homomorphic encryption MFHE schemes allow polynomially many users without trusted setup assumptions to send their data encrypted under different FHE keys chosen by users independently of each other to an honest-but-curious server that can compute the output of an arbitrary polynomial-time computable function on this joint data and issue
Wutichai Chongchitmate, Rafail Ostrovsky
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Multi-key fully homomorphic encryption MFHE schemes allow polynomially many users without trusted setup assumptions to send their data encrypted under different FHE keys chosen by users independently of each other to an honest-but-curious server that can compute the output of an arbitrary polynomial-time computable function on this joint data and issue
Wutichai Chongchitmate, Rafail Ostrovsky
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Private-key algebraic-code encryptions
IEEE Transactions on Information Theory, 1989Summary: Public-key cryptosystems using very large distance algebraic codes were studied in the past. Private-key cryptosystems using simpler codes have also been the subject of a recent study. A new approach to the private- key cryptosystems is proposed which allows use of very simple codes of distance \(\leq 6\) and length of 250 bits or less.
Thammavarapu R. N. Rao, Kil-Hyun Nam
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2003
Section 3.1 presents some classical ciphers for which both plaintext and cipher-text are characters or strings of characters. Section 3.2 covers the theory of modern cryptosystems and describes two early ciphers: Lucifer and DES. Section 3.3 presents five private-key block ciphers: FEAL, IDEA, RC6, Rijndael, and Serpent, of which the last three took ...
Josef Pieprzyk +2 more
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Section 3.1 presents some classical ciphers for which both plaintext and cipher-text are characters or strings of characters. Section 3.2 covers the theory of modern cryptosystems and describes two early ciphers: Lucifer and DES. Section 3.3 presents five private-key block ciphers: FEAL, IDEA, RC6, Rijndael, and Serpent, of which the last three took ...
Josef Pieprzyk +2 more
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Private-Key Fully Homomorphic Encryption for Private Classification
2018Fully homomophic encryption enables private computation over sensitive data, such as medical data, via potentially quantum-safe primitives. In this extended abstract we provide an overview of an implementation of a private-key fully homomorphic encryption scheme in a protocol for private Naive Bayes classification.
Alexander Wood +4 more
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