Secure Broadcasting Using the Secure Lock

  • Authors:
  • Guang-huei Chiou;Wen-Tsuen Chen

  • Affiliations:
  • National Tsing-Hua Univ., Taiwan, Republic of China;National Tsing-Hua Univ., Taiwan, Republic of China

  • Venue:
  • IEEE Transactions on Software Engineering
  • Year:
  • 1989

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Abstract

The authors discuss secure broadcasting, effected by means of a secure lock, on broadcast channels, such as satellite, radio, etc. This lock is implemented by using the Chinese Remainder theorem (CRT). The secure lock offers the following advantages: only one copy of the ciphertext is sent; the deciphering operation is efficient; and the number of secret keys held by each user is minimized. Protocols for secure broadcasting using the secure lock, based on the public-key cryptosystem as well as the private-key cryptosystem, are presented.