The Subliminal Channel and Its Capacity in Proxy Signatures

• 作者: BAIEnjian DONGQingkuan XIAOGuozhen
• 来源期刊: 电子学报(英文版)
• 学科: 工学
• 关键词: 阈下信道 信道容量 信息隐藏 代理签名 系统结构
• 年，卷（期）: 2004,（1）
• 页码范围: 66-68
• 页数: 3页
• 分类号: TN918
• 语种: 中文

摘要

A type of new broadband subliminal channel in proxy signatures is constructed. In proxy signatures the proxy signer signs a message on behalf of the original signer, so it is no sense that the original signer (the subliminal receiver in our construction) abuses the signing power.And the original signer can limit the signing power of the proxy signer, so our construction avoids the defect existing in the traditional broadband subliminal channel. Finally,other types of subliminal channels in proxy signature and their capacity are also briefly discussed.