发明名称 |
METHOD AND APPARATUS FOR GENERATING SHORTER SIGNATURES ALMOST TIGHTLY RELATED TO STANDARD ASSUMPTIONS |
摘要 |
<p>The present principles use the message to be signed as a label - of the private key augmented with a QA-NIZK proof that the encrypted value is a persistent hidden secret. One-time homomorphic signatures are used to generate the signature and the public key. The private key for the one-time homomorphic signatures is included in the private key for signing the message, and the public key for the one-time homomorphic signatures is included in the public key for verifying the signature. Consequently, we obtain DLIN-based signatures comprised of only 6 group elements. The security proof uses a sequence of hybrid games, gradually moves to a game where all signatures contain an encryption of a random value while the QA-NIZK proofs are simulated proofs for false statements.</p> |
申请公布号 |
WO2015175365(A1) |
申请公布日期 |
2015.11.19 |
申请号 |
WO2015US30065 |
申请日期 |
2015.05.11 |
申请人 |
THOMSON LICENSING |
发明人 |
JOYE, MARC;LIBERT, BENOIT |
分类号 |
H04L9/00;H04L9/30;H04L9/32 |
主分类号 |
H04L9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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