Results 241 to 250 of about 3,277,699 (285)

Private-Key Hidden Vector Encryption with Key Confidentiality

2009
Predicate encryption is an important cryptographic primitive that has been recently studied [BDOP04, BW07, GPSW06, KSW08] and that has found wide applications. Roughly speaking, in a predicate encryption scheme the owner of the master secret key K can derive secret key $\tilde K$, for any pattern vector k .
BLUNDO, Carlo, V. IOVINO, PERSIANO, Giuseppe   +2 more
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Single Private-Key Generator Security Implies Multiple Private-Key Generators Security

2018
This paper discusses the security of identity-based cryptography with multiple private-key generators (mPKG-IBC). Most mPKG-IBC schemes and protocols are statically secure where private-key generators (PKGs) cannot control a binding between a party and its PKG.
Atsushi Fujioka, Kazuki Yoneyama
openaire   +1 more source

Forward-Security in Private-Key Cryptography

2003
This paper provides a comprehensive treatment of forwardsecurity in the context of shared-key based cryptographic primitives, as a practical means to mitigate the damage caused by key-exposure. We provide definitions of security, practical proven-secure constructions, and applications for the main primitives in this area.
Mihir Bellare, Bennet S. Yee
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Private-Key Encryption

1999
Encryption techniques can use either public keys or secret keys. Secret-key encryption techniques use a secret key which is only known by the two communicating parities, as illustrated in Figure 18.1. This key can be fixed or can be passed from the two parties over a secure communications link (for example over the postal network or a leased line). The
openaire   +1 more source

A Signature Scheme with a Fuzzy Private Key

2015
In this paper, we introduce a new concept that we call fuzzy signature, which is a signature scheme that uses a noisy string such as biometric data as a private key, but does not require auxiliary data (which is also called helper string in the context of fuzzy extractors), for generating a signature.
Kenta Takahashi, Takahiro Matsuda 0002, Takao Murakami, Goichiro Hanaoka, Masakatsu Nishigaki   +4 more
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Key role for private health sector

Nursing Standard, 1988
The private health care sector has a key role to play in caring for elderly people, the Commons Select Committee on Social Services has been told.
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Private-Key Encryption

2012
In this chapter we introduce the basic ideas and concepts underlying private-key encryption (also called symmetric encryption). Particularly important is the concept of security, which for the classical ciphers studied in the first chapter was not precisely defined.
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Private key and public key quantum cryptography

Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 2003
Summary form only given. Information has always been valuable, never more so than in recent decades, and throughout history people have turned to cryptography in an attempt to keep important information secret. Coherent manipulation of quantum states promises to rearrange the lists of possible and impossible cryptographic tasks.
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On the Difficulty of Protecting Private Keys in Software

2002
This paper makes simple observation on security of the networked cryptographic device resilient to capture that was developed to protect user's private keys by software-only techniques. That scheme provided valuable features for secure generation of digital signatures or decryption of messages in a way of retaining a password-protected private key in a
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The Future of Private Labels: Towards a Smart Private Label Strategy

Journal of Retailing, 2021
Katrijn Gielens, Aidin Namin, Raj Sethuraman   +2 more
exaly