Results 101 to 110 of about 377,166 (313)

On the Security of Dynamic Group Signatures: Preventing Signature Hijacking [PDF]

open access: yes, 2012
We identify a potential weakness in the standard security model for dynamic group signatures which appears to have been overlooked previously. More specifically, we highlight that even if a scheme provably meets the security requirements of the model, a malicious group member can potentially claim ownership of a group signature produced by an honest ...
Yusuke Sakai 0001   +4 more
openaire   +2 more sources

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

open access: yesMolecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen   +11 more
wiley   +1 more source

A Multi-policy Threshold Signature Scheme with Traceable Participant Cosigners

open access: yes, 2009
[[abstract]]In a (t, n) threshold scheme, the secret can be reconstructed by the cooperation of t or more users. With this basic concept, Lee devised a threshold signature scheme with multiple signing policies in 2001.
Chu, C. H.;Lin, H. F.;Chang, C. C.;Chen, C. Y.
core  

A New Type of Group Signature Scheme [PDF]

open access: yes, 2006
On the basis of BB short signature scheme, this paper derives a new signature scheme, from which we construct a new kind of group signature scheme. The security of the new group signature scheme is based on the q-Strong Diffie-Hellman assumption and the ...
Jun Zhong Dake He
core  

Interrogating the immune landscape of microsatellite stable RAS‐mutated colon cancer

open access: yesMolecular Oncology, EarlyView.
COLOSSUS project RAS‐mutated MSS colon cancer study explored transcriptomics and immune cell density by immunohistochemistry (IHC), Immunoscore (IS), ISIC/TuLIS scores, mutation counts, and detected different prevalences but similar microenvironment composition across immune markers with clinical relevance for future immunotherapy combination ...
Rodrigo Dienstmann   +61 more
wiley   +1 more source

A Light-Weight Group Signature Scheme for Wireless Networks Based-on BBS Short Group Signature

open access: yes
In the natural context of wireless network environment, the communications between wireless nodes are more easily observed for the goal of the network traffic analysis.
Amang, Sudarsono, Mike , Yuliana
core  

Key Words: Signature Group Signature Information Security

open access: yes, 2008
: On the basis of BB short signature scheme, this paper derives a new signature scheme, from which we construct a new kind of group signature scheme. The security of the new group signature scheme is based on the q-Strong Diffie-Hellman assumption and ...
Zhong Jun, Clc Tp, He Da-ke
core  

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

Group-Oriented Digital Signature and envelop with Java Card Implementation

open access: yes, 2007
隨著科技的發展,電子簽章與電子信封在現今的電子商務中越發重要。一個組織持有一組 密鑰/公鑰 來代表這個組織的情況也越來越普遍。對於這種情況,群體導向門檻理論提供了便利而安全的方法來產生群體簽章或是破解密文。任何群體以外的人可以傳送一份以這個群體公鑰加密過的文件給這個群體,而只要參與解密的群體成員人數大於或是等於門檻限制,就可以正確解密這份密文。 群體簽章的方面,只要參與簽章的群體成員人數大於或是等於門檻人數,就能夠產生有效的群體簽章,而任何群體以外的人都可以簡單的驗證這份簽章的有效性。在這份論文裡 ...
張靜雯, Chang, Chin-Wen
core  

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

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