aboutsummaryrefslogtreecommitdiff
path: root/cmd/sigsum-debug/key
diff options
context:
space:
mode:
authorLinus Nordberg <linus@nordberg.se>2022-04-28 15:46:01 +0200
committerLinus Nordberg <linus@nordberg.se>2022-04-28 15:46:01 +0200
commit47490448be1b7006641e6badc6a84b1441b27698 (patch)
treefb386e9e6ccb90b368da63d0a8085d114fd8431c /cmd/sigsum-debug/key
parent2dcd7bca2f3e69fb6f1770ec0bf740d8956978ca (diff)
parentb270a4c0d10947fe480bad7330b31bb793225968 (diff)
Merge branch 'merge/sigsum-debug'
Diffstat (limited to 'cmd/sigsum-debug/key')
-rw-r--r--cmd/sigsum-debug/key/hash/hash.go29
-rw-r--r--cmd/sigsum-debug/key/key.go51
-rw-r--r--cmd/sigsum-debug/key/private/private.go29
-rw-r--r--cmd/sigsum-debug/key/public/public.go32
4 files changed, 141 insertions, 0 deletions
diff --git a/cmd/sigsum-debug/key/hash/hash.go b/cmd/sigsum-debug/key/hash/hash.go
new file mode 100644
index 0000000..0431dfc
--- /dev/null
+++ b/cmd/sigsum-debug/key/hash/hash.go
@@ -0,0 +1,29 @@
+package hash
+
+import (
+ "fmt"
+ "strings"
+
+ "git.sigsum.org/sigsum-go/internal/fmtio"
+ "git.sigsum.org/sigsum-go/pkg/hex"
+ "git.sigsum.org/sigsum-go/pkg/types"
+)
+
+func Main(args []string) error {
+ if len(args) != 0 {
+ return fmt.Errorf("trailing arguments: %s", strings.Join(args, ", "))
+ }
+ s, err := fmtio.StringFromStdin()
+ if err != nil {
+ return fmt.Errorf("read stdin: %w", err)
+ }
+ pub, err := fmtio.PublicKeyFromHex(s)
+ if err != nil {
+ return fmt.Errorf("parse key: %w", err)
+ }
+
+ keyHash := types.HashFn(pub[:])
+
+ fmt.Printf("%s\n", hex.Serialize(keyHash[:]))
+ return nil
+}
diff --git a/cmd/sigsum-debug/key/key.go b/cmd/sigsum-debug/key/key.go
new file mode 100644
index 0000000..88973f2
--- /dev/null
+++ b/cmd/sigsum-debug/key/key.go
@@ -0,0 +1,51 @@
+package key
+
+import (
+ "flag"
+ "fmt"
+ "log"
+
+ "git.sigsum.org/sigsum-go/cmd/sigsum-debug/key/hash"
+ "git.sigsum.org/sigsum-go/cmd/sigsum-debug/key/private"
+ "git.sigsum.org/sigsum-go/cmd/sigsum-debug/key/public"
+ "git.sigsum.org/sigsum-go/internal/options"
+)
+
+const usage = `
+sigsum-debug key generates private keys, public keys, and key hashes.
+
+Usage:
+
+ sigsum-debug key help Outputs a usage message
+ sigsum-debug key private Outputs a new private key
+ sigsum-debug key public Outputs a public key for a private key on stdin
+ sigsum-debug key hash Outputs a key hash for a public key on stdin
+
+`
+
+func Main(args []string) error {
+ var err error
+
+ opt := options.New(args, func() { log.Printf(usage[1:]) }, func(_ *flag.FlagSet) {})
+ switch opt.Name() {
+ case "help":
+ opt.Usage()
+ case "private":
+ err = private.Main(opt.Args())
+ case "public":
+ err = public.Main(opt.Args())
+ case "hash":
+ err = hash.Main(opt.Args())
+ default:
+ err = fmt.Errorf("invalid command %q, try \"help\"", opt.Name())
+ }
+ if err != nil {
+ format := " %s: %w"
+ if len(opt.Name()) == 0 {
+ format = "%s: %w"
+ }
+ err = fmt.Errorf(format, opt.Name(), err)
+ }
+
+ return err
+}
diff --git a/cmd/sigsum-debug/key/private/private.go b/cmd/sigsum-debug/key/private/private.go
new file mode 100644
index 0000000..3928f56
--- /dev/null
+++ b/cmd/sigsum-debug/key/private/private.go
@@ -0,0 +1,29 @@
+package private
+
+import (
+ "crypto/ed25519"
+ "crypto/rand"
+ "fmt"
+ "strings"
+
+ "git.sigsum.org/sigsum-go/pkg/hex"
+)
+
+const privateKeySize = 64
+
+func Main(args []string) error {
+ if len(args) != 0 {
+ return fmt.Errorf("trailing arguments: %s", strings.Join(args, ", "))
+ }
+
+ _, priv, err := ed25519.GenerateKey(rand.Reader)
+ if err != nil {
+ return fmt.Errorf("generate key: %w", err)
+ }
+ if len(priv) != privateKeySize {
+ return fmt.Errorf("invalid key size %d", len(priv))
+ }
+
+ fmt.Printf("%s\n", hex.Serialize(priv[:]))
+ return nil
+}
diff --git a/cmd/sigsum-debug/key/public/public.go b/cmd/sigsum-debug/key/public/public.go
new file mode 100644
index 0000000..b03d0b9
--- /dev/null
+++ b/cmd/sigsum-debug/key/public/public.go
@@ -0,0 +1,32 @@
+package public
+
+import (
+ "crypto/ed25519"
+ "fmt"
+ "strings"
+
+ "git.sigsum.org/sigsum-go/internal/fmtio"
+ "git.sigsum.org/sigsum-go/pkg/hex"
+)
+
+func Main(args []string) error {
+ if len(args) != 0 {
+ return fmt.Errorf("trailing arguments: %s", strings.Join(args, ", "))
+ }
+ s, err := fmtio.StringFromStdin()
+ if err != nil {
+ return fmt.Errorf("read stdin: %w", err)
+ }
+
+ priv, err := fmtio.SignerFromHex(s)
+ if err != nil {
+ return fmt.Errorf("parse key: %w", err)
+ }
+ pub, ok := priv.Public().(ed25519.PublicKey)
+ if !ok {
+ return fmt.Errorf("not an ed25519 key")
+ }
+
+ fmt.Printf("%s\n", hex.Serialize(pub[:]))
+ return nil
+}