On the Security of Tag-KEM for Signcryption | Zendy

Maki Yoshida | Zendy; Toru Fujiwara | Zendy

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On the Security of Tag-KEM for Signcryption

Author(s) -

Maki Yoshida,

Toru Fujiwara

Publication year - 2007

Publication title -

electronic notes in theoretical computer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.242

H-Index - 60

ISSN - 1571-0661

DOI - 10.1016/j.entcs.2006.11.011

Subject(s) - signcryption , communication source , computer science , key encapsulation , key (lock) , public key cryptography , computer security , computer network , encryption , symmetric key algorithm

igncryption tag-KEM (Key Encapsulation Mechanism with a tag) is an authenticated tag-KEM for generic construction of hybrid signcryption. Signcryption tag-KEM allows the sender to encapsulate a symmetric key along with a tag so that the receiver can authenticate the sender, the key, and the tag. We present a definition for the security of signcryption tag-KEM which is suitable for a recent signcryption setting. We also present a proof of security for the previous generic construction of hybrid signcryption according to the given definition

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