A Secure Certificateless Hybrid Signcryption Method Without Pairwise Operation
A certificate-free, symmetric encryption algorithm technology, applied in the field of certificate-free hybrid signcryption, can solve the problems of low efficiency, achieve the effects of improving computing efficiency, eliminating computing consumption, and improving security levels
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[0041] Glossary.
[0042] KGC: Key Generation Center;
[0043] Setup: system establishment;
[0044] Set-SV: secret value setting;
[0045] PPK-Gen: partial key generation;
[0046] UK-Gen: user key generation;
[0047] Signcrypt: sign encryption;
[0048] Unsigncrypt: decrypt signcryption;
[0049] k: system security parameters;
[0050] Z + : group of positive integers;
[0051] q: a k-bit prime number;
[0052] f q : a finite field containing q elements;
[0053] E / F q : In the finite field F q An elliptic curve E selected above;
[0054] G q : additive cyclic group;
[0055] Z q * : Integer multiplicative group modulo q;
[0056] P: additive cyclic group G q generator of
[0057] x 0 : The random number selected by KGC;
[0058] msk: system master key;
[0059] L: positive integer, indicating the length of the symmetric key space;
[0060] n: positive integer, indicating the length of the plaintext;
[0061] P pub : system master public key;
[0...
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