27 lines
702 B
Go
27 lines
702 B
Go
// auth9p.go - Authentication helpers for 9P toolsrv
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package toolsrv
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import (
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"crypto/hmac"
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"crypto/rand"
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"crypto/sha256"
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"encoding/hex"
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)
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// GenerateSecret generates a random shared secret for toolsrv auth.
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func GenerateSecret() ([]byte, error) {
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secret := make([]byte, 32)
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if _, err := rand.Read(secret); err != nil {
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return nil, err
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}
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return secret, nil
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}
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// ComputeRegistrationSig computes the HMAC signature for agent registration.
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// This is used by olliesrv to sign agent registration requests.
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func ComputeRegistrationSig(secret []byte, agentID, cwd string) string {
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h := hmac.New(sha256.New, secret)
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h.Write([]byte(agentID + "|" + cwd))
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return hex.EncodeToString(h.Sum(nil))
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}
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