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INFORMATICALT
2007
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13 years 4 months ago
Security Flaw in Simple Generalized Group-Oriented Cryptosystem Using ElGamal Cryptosystem
A generalized group-oriented cryptosystem (GGOC) based on ElGamal cryptosystem was proposed by Yang et al. in 2003. This study shows that if the authorized decryption sets of users...
Chuan-Ming Li, Tzonelih Hwang, Narn-Yih Lee