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https://github.com/netbirdio/netbird.git
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32 lines
835 B
Go
32 lines
835 B
Go
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package messages
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import (
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"crypto/sha256"
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"encoding/base64"
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"fmt"
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)
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const (
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prefixLength = 4
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IDSize = prefixLength + sha256.Size
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)
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var (
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prefix = []byte("sha-") // 4 bytes
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)
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// HashID generates a sha256 hash from the peerID and returns the hash and the human-readable string
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func HashID(peerID string) ([]byte, string) {
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idHash := sha256.Sum256([]byte(peerID))
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idHashString := string(prefix) + base64.StdEncoding.EncodeToString(idHash[:])
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var prefixedHash []byte
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prefixedHash = append(prefixedHash, prefix...)
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prefixedHash = append(prefixedHash, idHash[:]...)
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return prefixedHash, idHashString
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}
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// HashIDToString converts a hash to a human-readable string
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func HashIDToString(idHash []byte) string {
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return fmt.Sprintf("%s%s", idHash[:prefixLength], base64.StdEncoding.EncodeToString(idHash[prefixLength:]))
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}
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