JoongHyo Oh

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In identity-based cryptography, a user’s public key is easily derived from the user’s identity and a corresponding private key is generated for the user by a trusted third party, known as a Key Generation Center (KGC). The direct derivation of public keys in identity-based cryptography can eliminate the need for certificates and can solve certain public key(More)
This paper addresses the problem of making signatures of one domain (an ad-hoc network) available in another domain (the Internet). Universal verifiability is a highly desirable property when signed documents need to be permanently non-repudiable so as to prevent dishonest signers from disavowing signatures they have produced. As a practical solution, we(More)
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