46 lines
934 B
Go
46 lines
934 B
Go
package shared
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import (
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"crypto/ed25519"
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"crypto/rand"
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"encoding/pem"
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"log/slog"
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"os"
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"golang.org/x/crypto/ssh"
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)
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type Keypair struct {
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Public string
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Private string
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}
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func GenerateSSHKeypair() Keypair {
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publicKey, privateKey, err := ed25519.GenerateKey(rand.Reader)
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if err != nil {
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slog.Error("Failed to generate an ssh keypair.", slog.Any("propagatedError", err));
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os.Exit(42);
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}
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privBlock, err := ssh.MarshalPrivateKey(privateKey, "")
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if err != nil {
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slog.Error("Failed to marshal private key", slog.Any("propagatedError", err));
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os.Exit(42);
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}
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privPem := pem.EncodeToMemory(privBlock)
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sshPubKey, err := ssh.NewPublicKey(publicKey)
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if err != nil {
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slog.Error("Failed deriving public ssh key from a private one.", slog.Any("propagatedError", err));
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os.Exit(42);
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}
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pubBytes := ssh.MarshalAuthorizedKey(sshPubKey)
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return Keypair{
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Private: string(privPem),
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Public: string(pubBytes),
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}
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}
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