Abstract
We show that the Zhang-Yang-Zhu-Zhang identity-based authenticatable ring signcryption scheme is not secure against chosen plaintext attacks. Furthermore, we propose an improved scheme that remedies the weakness of the Zhang-Yang-Zhu-Zhang scheme. The improved scheme has shorter ciphertext size than the Zhang-Yang-Zhu-Zhang scheme. We then prove that the improved scheme satisfies confidentiality, unforgeability, anonymity and authenticatability. Copyright.
| Original language | English |
|---|---|
| Pages (from-to) | 679-683 |
| Number of pages | 5 |
| Journal | Journal of Shanghai Jiaotong University (Science) |
| Volume | 13 E |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 1 2008 |
All Science Journal Classification (ASJC) codes
- General
Cite this
Analysis and improvement of authenticatable ring signcryption scheme. / Li, Fa Gen; Masaaki, Shirase; Tsuyoshi, Takagi.
In: Journal of Shanghai Jiaotong University (Science), Vol. 13 E, No. 6, 01.12.2008, p. 679-683.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Analysis and improvement of authenticatable ring signcryption scheme
AU - Li, Fa Gen
AU - Masaaki, Shirase
AU - Tsuyoshi, Takagi
PY - 2008/12/1
Y1 - 2008/12/1
N2 - We show that the Zhang-Yang-Zhu-Zhang identity-based authenticatable ring signcryption scheme is not secure against chosen plaintext attacks. Furthermore, we propose an improved scheme that remedies the weakness of the Zhang-Yang-Zhu-Zhang scheme. The improved scheme has shorter ciphertext size than the Zhang-Yang-Zhu-Zhang scheme. We then prove that the improved scheme satisfies confidentiality, unforgeability, anonymity and authenticatability. Copyright.
AB - We show that the Zhang-Yang-Zhu-Zhang identity-based authenticatable ring signcryption scheme is not secure against chosen plaintext attacks. Furthermore, we propose an improved scheme that remedies the weakness of the Zhang-Yang-Zhu-Zhang scheme. The improved scheme has shorter ciphertext size than the Zhang-Yang-Zhu-Zhang scheme. We then prove that the improved scheme satisfies confidentiality, unforgeability, anonymity and authenticatability. Copyright.
UR - http://www.scopus.com/inward/record.url?scp=57949099353&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=57949099353&partnerID=8YFLogxK
U2 - 10.1007/s12204-008-0679-2
DO - 10.1007/s12204-008-0679-2
M3 - Article
AN - SCOPUS:57949099353
VL - 13 E
SP - 679
EP - 683
JO - Journal of Shanghai Jiaotong University (Science)
JF - Journal of Shanghai Jiaotong University (Science)
SN - 1007-1172
IS - 6
ER -