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23 lines
355 B
Go
23 lines
355 B
Go
package dnssec
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import (
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"hash/fnv"
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"github.com/miekg/dns"
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)
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// hash serializes the RRset and returns a signature cache key.
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func hash(rrs []dns.RR) uint64 {
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h := fnv.New64()
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buf := make([]byte, 256)
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for _, r := range rrs {
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off, err := dns.PackRR(r, buf, 0, nil, false)
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if err == nil {
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h.Write(buf[:off])
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}
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}
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i := h.Sum64()
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return i
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}
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