A Topologic Approach to User-Dependent Key Extraction from Fingerprints

2010 ◽  
Author(s):  
Vladimir Yu. Gudkov ◽  
Oleg Ushmaev
Keyword(s):  
Key Extraction

Secret Key Extraction from Wireless Signal Strength in Real Environments

2013 ◽  
Vol 12 (5) ◽  
pp. 917-930 ◽  
Author(s):  
Sriram Nandha Premnath ◽  
Suman Jana ◽  
Jessica Croft ◽  
Prarthana Lakshmane Gowda ◽  
Mike Clark ◽  
...  
Keyword(s):  
Signal Strength ◽  
Secret Key ◽  
Wireless Signal ◽  
Key Extraction ◽  
Secret Key Extraction ◽  
Wireless Signal Strength

Leakage-free ID-Based Signature, Revisited

2020 ◽  
Vol 63 (8) ◽  
pp. 1263-1270
Author(s):  
Xi-Jun Lin ◽  
Lin Sun ◽  
Haipeng Qu
Keyword(s):  
Extraction Procedure ◽  
Key Generation ◽  
Private Key ◽  
Identity Based ◽  
Key Extraction ◽  
Security Notion

Abstract Recently, Tseng et al. proposed a new notion for identity-based signature (IBS) scheme to resist ephemeral secret leakage (ESL) attacks, called leakage-free identity-based signature (leakage-free IBS), and devised the first secure leakage-free IBS scheme. However, they only considered the situation of the leakage of ephemeral secrets used for generating the signatures. Notice that the private key extraction procedure is probabilistic as well in their scheme, that is, there are ephemeral secrets used by the key generation center to generate the signers’ private keys. It is practical to consider that if the adversary comprises these ephemeral secrets, then he can reveal the master key of the system. Therefore, it is desired to introduce a new security notion for the leakage-free IBS schemes to consider the ESL attacks on both private key extraction and signing procedures. In this paper, we present such security notion. Moreover, we propose two IBS schemes that are proved to be secure under the new security notion.

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