Group-oriented setting's multisigncryption scheme with threshold designcryption

Mingwu Zhang, Bo Yang, Tsuyoshi Takagi

研究成果: ジャーナルへの寄稿学術誌査読

6 被引用数 (Scopus)


Signcryption supports the authenticity and confidently in a single logic step and it has more efficient cost than the signature-then-encryption approach. Currently signcryption schemes only support a peer to peer secure message transfer between single users, and thus it cannot be adapted to the group users in multiple senders and receivers. In this paper, we propose a group-oriented multisigncryption scheme with threshold designcryption in multi-users setting, which combines the threshold secret sharing technology, zero knowledge proof for the bilinear map equality of two discrete logarithms, multi-signature and identity-based signcryption schemes. The ciphertext in the proposed scheme is computed by all the m members in sender group, and it can be decrypted only by t-out-of-n members in receiver group. We prove the security of the proposed scheme in several models including semantic security, unforgeability, public ciphertext authenticity and verifiability.

ジャーナルInformation sciences
出版ステータス出版済み - 9月 15 2011

!!!All Science Journal Classification (ASJC) codes

  • ソフトウェア
  • 制御およびシステム工学
  • 理論的コンピュータサイエンス
  • コンピュータ サイエンスの応用
  • 情報システムおよび情報管理
  • 人工知能


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