fix(ssh): support ed25519 SSH keys

Author: seanknox

pkg/ssh/ssh.go

@@ -6,7 +6,7 @@ import (
 )
 
 var (
-	pubKeyRegex = regexp.MustCompile("^(ssh-...|ecdsa-[^ ]+) ([^ ]+) ?(.*)")
+	pubKeyRegex = regexp.MustCompile("^(ssh-rsa|ssh-dss|ssh-ed25519|ecdsa-[^ ]+) ([^ ]+) ?(.*)")
 )
 
 // PubKeyInfo contains the information on an SSH public key

pkg/ssh/ssh_test.go

@@ -4,20 +4,48 @@ import (
 	"testing"
 )
 
-const (
-	pubKey      = `ssh-rsa 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 arschles@gmail.com`
-	backupKeyID = "mybackup"
-)
+type pubKey struct {
+	key string
+	id	string
+}
+
+var validKeys = []pubKey {
+	{ "ssh-rsa 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 arschles@gmail.com", "rsaId" },
+	{ "ssh-dss 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 arschles@gmail.com", "dsaId" },
+	{ "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBMQ/isNQFn2x7g9dIK1N4+mvEa+a01hj2LnZFBad7W+os+wc+UurVxWVoGopc/mjzqezr6vk9jgOjLdYek9T/2w= arschles@gmail.com", "ecdsaId" },
+	{ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIORIdG868fEBUKoEqSQZFKfSLoHkSBmW2uXXGaZKEuus arschles@gmail.com", "ed25519Id" },
+}
+
+var invalidKeys = []pubKey {
+	{ "bad-key-type 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 arschles@gmail.com", "rsaId" },
+}
+
+func TestParseValidSSHPubKey(t *testing.T) {
+	for _, keyAndId := range validKeys {
+		key := keyAndId.key
+		id := keyAndId.id
+		info, err := ParsePubKey(id, []byte(key))
+		if err != nil {
+			t.Fatalf("Error parsing well formed key (%s)", err)
+		}
+		if info.ID != "arschles@gmail.com" {
+			t.Fatalf("expected key ID arschles@gmail.com, got %s", info.ID)
+		}
+		if info.Public != key {
+			t.Fatalf("expected key contents %s, got %s", key, info.Public)
+		}
 
-func TestParseSSHPubKey(t *testing.T) {
-	info, err := ParsePubKey(backupKeyID, []byte(pubKey))
-	if err != nil {
-		t.Fatalf("Error parsing well formed key (%s)", err)
-	}
-	if info.ID != "arschles@gmail.com" {
-		t.Fatalf("expected key ID arschles@gmail.com, got %s", info.ID)
 	}
-	if info.Public != pubKey {
-		t.Fatalf("expected key contents %s, got %s", pubKey, info.Public)
+
+}
+
+func TestParseInvalidSSHPubKey(t *testing.T) {
+	for _, keyAndId := range invalidKeys {
+		key := keyAndId.key
+		id := keyAndId.id
+		_, err := ParsePubKey(id, []byte(key))
+		if err == nil {
+			t.Fatalf("Key should be invalid but was not: (%s)", key)
+		}
 	}
 }