mirror of https://github.com/status-im/go-waku.git
33 lines
891 B
Go
33 lines
891 B
Go
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package static
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import (
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"errors"
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"github.com/waku-org/go-zerokit-rln/rln"
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)
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func Setup(index rln.MembershipIndex) ([]rln.IDCommitment, rln.IdentityCredential, error) {
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// static group
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groupKeys := rln.STATIC_GROUP_KEYS
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groupSize := rln.STATIC_GROUP_SIZE
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// validate the user-supplied membership index
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if index >= rln.MembershipIndex(groupSize) {
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return nil, rln.IdentityCredential{}, errors.New("wrong membership index")
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}
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// create a sequence of MembershipKeyPairs from the group keys (group keys are in string format)
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credentials, err := rln.ToIdentityCredentials(groupKeys)
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if err != nil {
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return nil, rln.IdentityCredential{}, errors.New("invalid data on group keypairs")
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}
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// extract id commitment keys
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var groupOpt []rln.IDCommitment
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for _, c := range credentials {
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groupOpt = append(groupOpt, c.IDCommitment)
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}
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return groupOpt, credentials[index], nil
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}
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