Broadcast and Group Key Agreement Generated Phase Clause Samples

Broadcast and Group Key Agreement Generated Phase. Each group participant Ui computes Xi = Bi−1 ⊕ Bi = H(SK , ID )⊕H(SK , ID ) and broadcasts X to ri A random number generated by Ui EK[.]/DK[.] A pair of symmetric encryption/decryption functions with key K A chaotic maps-based one-way hash function [21] the group, where IDsession is the public ephemeral information that consists of all participants’ identities and a nonce. After getting all the X , each U judges whether X ⊕X ⊕…, ⊕X SK The session key, which is established between user Ui and user Ui+1 The group session key, which is established between U Message concatenation A bitwise exclusive OR operation The comparison operation, judge whether two values are identical or not ⊕Xn ? = 0. If not, Ui outputs an error symbol ⊥ and aborts this phase. Otherwise, Ui can use Bi and Xi to get all Bj(j = 1, …, n) by using continuous XOR method. For example, U1 uses its B1 = H(SK1,2, IDsession) to get U2’s B2 = H(SK2,3, IDsession) by computing X2⊕B1, where X2 = B1⊕B2. After getting B2, U1 can further use it to get U3’s B3 = H(SK3,4,
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Related to Broadcast and Group Key Agreement Generated Phase

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