51 lines
975 B
Go
51 lines
975 B
Go
package main
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import (
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"crypto"
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"encoding/base64"
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"flag"
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"io"
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"io/ioutil"
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)
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func SignInput(args []string) error {
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fs := flag.NewFlagSet("pkictl sign-input", flag.ExitOnError)
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flagPrivate := fs.String("private-key", "", "path to the private key or read from stdin")
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flagInput := fs.String("input", "stdin", "path to the message to sign or stdin")
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flagOutput := fs.String("output", "stdout", "write private key to file")
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fs.Parse(args)
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pk, err := loadPrivateKey(*flagPrivate)
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if err != nil {
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return err
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}
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out, err := openOutput(*flagOutput)
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if err != nil {
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return err
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}
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defer out.Close()
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in, err := openInput(*flagInput)
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if err != nil {
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return err
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}
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defer in.Close()
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message, err := ioutil.ReadAll(in)
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if err != nil {
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return err
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}
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signature, err := pk.Sign(message, crypto.SHA256)
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if err != nil {
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return err
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}
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_, err = io.WriteString(out, base64.StdEncoding.EncodeToString(signature))
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if err != nil {
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return err
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}
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return nil
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}
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