Add support for "pgp-tokens" parameters to init.

There are thorough unit tests that read the returned
encrypted tokens, seal the vault, and unseal it
again to ensure all works as expected.
This commit is contained in:
Jeff Mitchell 2015-08-25 09:32:45 -07:00
parent 07b4091cae
commit 2f3e245b0b
5 changed files with 528 additions and 6 deletions

View File

@ -19,6 +19,10 @@ func (c *Sys) Init(opts *InitRequest) (*InitResponse, error) {
"secret_threshold": opts.SecretThreshold,
}
if len(opts.SecretPGPKeys) != 0 {
body["secret_pgp_keys"] = opts.SecretPGPKeys
}
r := c.c.NewRequest("PUT", "/v1/sys/init")
if err := r.SetJSONBody(body); err != nil {
return nil, err
@ -38,6 +42,7 @@ func (c *Sys) Init(opts *InitRequest) (*InitResponse, error) {
type InitRequest struct {
SecretShares int
SecretThreshold int
SecretPGPKeys []string
}
type InitStatusResponse struct {

View File

@ -1,7 +1,11 @@
package command
import (
"bytes"
"encoding/base64"
"errors"
"fmt"
"os"
"strings"
"github.com/hashicorp/vault/api"
@ -12,12 +16,41 @@ type InitCommand struct {
Meta
}
type pgpkeys []string
func (g *pgpkeys) String() string {
return fmt.Sprint(*g)
}
func (g *pgpkeys) Set(value string) error {
if len(*g) > 0 {
return errors.New("pgp-keys can only be specified once")
}
for _, keyfile := range strings.Split(value, ",") {
f, err := os.Open(keyfile)
if err != nil {
return err
}
defer f.Close()
buf := bytes.NewBuffer(nil)
_, err = buf.ReadFrom(f)
if err != nil {
return err
}
*g = append(*g, base64.StdEncoding.EncodeToString(buf.Bytes()))
}
return nil
}
func (c *InitCommand) Run(args []string) int {
var shares, threshold int
var threshold, shares int
var pgpKeys pgpkeys
flags := c.Meta.FlagSet("init", FlagSetDefault)
flags.Usage = func() { c.Ui.Error(c.Help()) }
flags.IntVar(&shares, "key-shares", 5, "")
flags.IntVar(&shares, "key-shares", 0, "")
flags.IntVar(&threshold, "key-threshold", 3, "")
flags.Var(&pgpKeys, "pgp-keys", "")
if err := flags.Parse(args); err != nil {
return 1
}
@ -29,9 +62,16 @@ func (c *InitCommand) Run(args []string) int {
return 1
}
if shares == 0 && len(pgpKeys) == 0 {
shares = 5
}
c.Ui.Warn(fmt.Sprintf("Number of shares: %d, length of pgp-keys: %d", shares, len(pgpKeys)))
resp, err := client.Sys().Init(&api.InitRequest{
SecretShares: shares,
SecretThreshold: threshold,
SecretPGPKeys: pgpKeys,
})
if err != nil {
c.Ui.Error(fmt.Sprintf(
@ -90,6 +130,16 @@ Init Options:
-key-threshold=3 The number of key shares required to reconstruct
the master key.
-pgp-keys If provided, must be a comma-separated list of
files on disk containing binary-format public PGP
keys. The number of files must match 'key-shares',
or you can omit 'key-shares' if using this option.
The output unseal keys will be hex-encoded and
encrypted, in order, with the given public keys.
If you want to use them with the 'vault unseal'
command, you will need to hex decode, decrypt, and
hex encode the result; this will be the plaintext
unseal key.
`
return strings.TrimSpace(helpText)
}

View File

@ -1,9 +1,18 @@
package command
import (
"bytes"
"encoding/base64"
"encoding/hex"
"io/ioutil"
"os"
"reflect"
"strings"
"testing"
"golang.org/x/crypto/openpgp"
"golang.org/x/crypto/openpgp/packet"
"github.com/hashicorp/vault/http"
"github.com/hashicorp/vault/vault"
"github.com/mitchellh/cli"
@ -104,3 +113,398 @@ func TestInit_custom(t *testing.T) {
t.Fatalf("bad: %#v", sealConf)
}
}
func TestInit_PGP(t *testing.T) {
ui := new(cli.MockUi)
c := &InitCommand{
Meta: Meta{
Ui: ui,
},
}
core := vault.TestCore(t)
ln, addr := http.TestServer(t, core)
defer ln.Close()
init, err := core.Initialized()
if err != nil {
t.Fatalf("err: %s", err)
}
if init {
t.Fatal("should not be initialized")
}
tempDir, err := ioutil.TempDir("", "vault-test")
if err != nil {
t.Fatalf("Error creating temporary directory: %s", err)
}
defer os.RemoveAll(tempDir)
decoder := base64.StdEncoding
pub1Bytes, err := decoder.DecodeString(pubKey1)
if err != nil {
t.Fatalf("Error decoding bytes for public key 1: %s", err)
}
err = ioutil.WriteFile(tempDir+"/pubkey1", pub1Bytes, 0755)
if err != nil {
t.Fatalf("Error writing pub key 1 to temp file: %s", err)
}
pub2Bytes, err := decoder.DecodeString(pubKey2)
if err != nil {
t.Fatalf("Error decoding bytes for public key 2: %s", err)
}
err = ioutil.WriteFile(tempDir+"/pubkey2", pub2Bytes, 0755)
if err != nil {
t.Fatalf("Error writing pub key 2 to temp file: %s", err)
}
pub3Bytes, err := decoder.DecodeString(pubKey3)
if err != nil {
t.Fatalf("Error decoding bytes for public key 3: %s", err)
}
err = ioutil.WriteFile(tempDir+"/pubkey3", pub3Bytes, 0755)
if err != nil {
t.Fatalf("Error writing pub key 3 to temp file: %s", err)
}
args := []string{
"-address", addr,
"-key-shares", "2",
"-pgp-keys", tempDir + "/pubkey1," + tempDir + "/pubkey2," + tempDir + "/pubkey3",
"-key-threshold", "2",
}
// This should fail, as key-shares does not match pgp-keys size
if code := c.Run(args); code == 0 {
t.Fatalf("bad (command should have failed): %d\n\n%s", code, ui.ErrorWriter.String())
}
args = []string{
"-address", addr,
"-pgp-keys", tempDir + "/pubkey1," + tempDir + "/pubkey2," + tempDir + "/pubkey3",
"-key-threshold", "2",
}
c.Ui.(*cli.MockUi).OutputWriter.Reset()
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
init, err = core.Initialized()
if err != nil {
t.Fatalf("err: %s", err)
}
if !init {
t.Fatal("should be initialized")
}
sealConf, err := core.SealConfig()
if err != nil {
t.Fatalf("err: %s", err)
}
expected := &vault.SealConfig{
SecretShares: 3,
SecretThreshold: 2,
SecretPGPKeys: []string{
strings.Replace(pubKey1, "\n", "", -1),
strings.Replace(pubKey2, "\n", "", -1),
strings.Replace(pubKey3, "\n", "", -1),
},
}
if !reflect.DeepEqual(expected, sealConf) {
t.Fatalf("bad:\nexpected: %#v\ngot: %#v", expected, sealConf)
}
// Hacky, yes, but it works
keysAndRoot := strings.Split(c.Ui.(*cli.MockUi).OutputWriter.String(), "\n")
priv1Bytes, err := decoder.DecodeString(privKey1)
if err != nil {
t.Fatalf("Error decoding bytes for private key 1: %s", err)
}
priv2Bytes, err := decoder.DecodeString(privKey2)
if err != nil {
t.Fatalf("Error decoding bytes for private key 2: %s", err)
}
priv3Bytes, err := decoder.DecodeString(privKey3)
if err != nil {
t.Fatalf("Error decoding bytes for private key 3: %s", err)
}
privBytes := [][]byte{
priv1Bytes,
priv2Bytes,
priv3Bytes,
}
unsealKeys := []string{}
ptBuf := bytes.NewBuffer(nil)
for i, keyHex := range privBytes {
if i > 2 {
break
}
ptBuf.Reset()
entity, err := openpgp.ReadEntity(packet.NewReader(bytes.NewBuffer(keyHex)))
if err != nil {
t.Fatalf("Error parsing private key %d: %s", i, err)
}
keyBytes, err := hex.DecodeString(strings.Split(keysAndRoot[i], " ")[2])
if err != nil {
t.Fatalf("Error hex-decoding key %d: %s", i, err)
}
entityList := &openpgp.EntityList{entity}
md, err := openpgp.ReadMessage(bytes.NewBuffer(keyBytes), entityList, nil, nil)
if err != nil {
t.Fatalf("Error decrypting with key %d: %s", i, err)
}
ptBuf.ReadFrom(md.UnverifiedBody)
unsealKeys = append(unsealKeys, hex.EncodeToString(ptBuf.Bytes()))
}
// Let's make sure the decrypted keys are actually valid
rootToken := strings.Split(keysAndRoot[3], " ")[2]
err = core.Seal(rootToken)
if err != nil {
t.Fatalf("Error sealing vault with returned root token: %s", err)
}
for i, unsealKey := range unsealKeys {
unsealBytes, err := hex.DecodeString(unsealKey)
if err != nil {
t.Fatalf("Error decoding hex string %s: %s", unsealKey, err)
}
unsealed, err := core.Unseal(unsealBytes)
if err != nil {
t.Fatalf("Error using unseal key %s: %s", unsealKey, err)
}
if i >= 2 && !unsealed {
t.Fatalf("Error: Provided two unseal keys but core is not unsealed")
}
}
}
const privKey1 = `lQOYBFXbjPUBCADjNjCUQwfxKL+RR2GA6pv/1K+zJZ8UWIF9S0lk7cVIEfJiprzzwiMwBS5cD0da
rGin1FHvIWOZxujA7oW0O2TUuatqI3aAYDTfRYurh6iKLC+VS+F7H+/mhfFvKmgr0Y5kDCF1j0T/
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oDgt766Key1Kthe8nbEs5dOXIsP7OR7ZPcnE2hy6gftgVFnBGEZnWVN70vmJd6Z5y9d1mI+GecXj
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const privKey2 = `lQOYBFXbkJEBCADKb1ZvlT14XrJa2rTOe5924LQr2PTZlRv+651TXy33yEhelZ+V4sMrELN8fKEG
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dXlg3mimA+iK7tABQfG0RJ9YzWs=`
const privKey3 = `lQOXBFXbkiMBCACiHW4/VI2JkfvSEINddS7vE6wEu5e1leNQDaLUh6PrATQZS2a4Q6kRE6WlJumj
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AAoJEAUj/03Hcrkg84UIAKxn9nizYtwSgDnVNb5PnD5h6+Ui6r7ffYm2o0im4YhakbFTHIPI9PRh
BavRI5sE5Fg2vtE/x38jattoUrJoNoq9Gh9iv5PBfL3amEGjul0RRqYGl+ub+yv7YGAAHbHcdZen
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KFIzGEPKVoBF9U7VBXpyxpsz+A==`
const pubKey1 = `mQENBFXbjPUBCADjNjCUQwfxKL+RR2GA6pv/1K+zJZ8UWIF9S0lk7cVIEfJiprzzwiMwBS5cD0da
rGin1FHvIWOZxujA7oW0O2TUuatqI3aAYDTfRYurh6iKLC+VS+F7H+/mhfFvKmgr0Y5kDCF1j0T/
063QZ84IRGucR/X43IY7kAtmxGXH0dYOCzOe5UBX1fTn3mXGe2ImCDWBH7gOViynXmb6XNvXkP0f
sF5St9jhO7mbZU9EFkv9O3t3EaURfHopsCVDOlCkFCw5ArY+DUORHRzoMX0PnkyQb5OzibkChzpg
8hQssKeVGpuskTdz5Q7PtdW71jXd4fFVzoNH8fYwRpziD2xNvi6HABEBAAG0EFZhdWx0IFRlc3Qg
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cRaOB6e79fj65Fg6HgSahDUtKJbGxj/lWzmaBuTzlN3CEe8cMwIPqPT2kajJVdOyrvkyuFOdPFOE
A7bdCH0MqgIdM2SdF8t40k/ATfuD2K1ZmumJ508I3gF39jgTnPzD4C8quswrMQ3bzfvKC3klXRlB
C0yoArn+0QA3cf2B9T4zJ2qnvgotVbeK/b1OJRNj6Poeo+SsWNc/A5mw7lGScnDgL3yfwCm1gQXa
QKfOt5x+7GqhWDw10q+bJpJlI10FfzAnhMF9etSqSeURBRW5AQ0EVduM9QEIAL53hJ5bZJ7oEDCn
aY+SCzt9QsAfnFTAnZJQrvkvusJzrTQ088eUQmAjvxkfRqnv981fFwGnh2+I1Ktm698UAZS9Jt8y
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AQIABgUCVduM9QAKCRAID0JGyHtSGmqYB/4m4rJbbWa7dBJ8VqRU7ZKnNRDR9CVhEGipBmpDGRYu
lEimOPzLUX/ZXZmTZzgemeXLBaJJlWnopVUWuAsyjQuZAfdd8nHkGRHG0/DGum0l4sKTta3OPGHN
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OIu60YPNE4+h7u2CfYyFPu3AlUaGNMBlvy6PEpU=`
const pubKey2 = `mQENBFXbkJEBCADKb1ZvlT14XrJa2rTOe5924LQr2PTZlRv+651TXy33yEhelZ+V4sMrELN8fKEG
Zy1kNixmbq3MCF/671k3LigHA7VrOaH9iiQgr6IIq2MeIkUYKZ27C992vQkYLjbYUG8+zl5h69S4
0Ixm0yL0M54XOJ0gm+maEK1ZESKTUlDNkIS7l0jLZSYwfUeGXSEt6FWs8OgbyRTaHw4PDHrDEE9e
Q67K6IZ3YMhPOL4fVk4Jwrp5R/RwiklT+lNozWEyFVwPFH4MeQMs9nMbt+fWlTzEA7tI4acI9yDk
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S2V5IDKJATgEEwECACIFAlXbkJECGy8GCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEOuDLGfr
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2kaLkRPFhO0hRxbtI6VuZYLgG3QCaXhxW6GyFa5zKABqhb5ojexdnAYRswaHV201ZCclj9rnJN1P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`
const pubKey3 = `mQENBFXbkiMBCACiHW4/VI2JkfvSEINddS7vE6wEu5e1leNQDaLUh6PrATQZS2a4Q6kRE6WlJumj
6wCeN753Cm93UGQl2Bi3USIEeArIZnPTcocrckOVXxtoLBNKXgqKvEsDXgfw8A+doSfXoDm/3Js4
Wy3WsYKNR9LaPuJZHnpjsFAJhvRVyhH4UFD+1RTSSefq1mozPfDdMoZeZNEpfhwt3DuTJs7RqcTH
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resmxvlBWZ1zWwqGIrV9b0uwYvGrh2hOd5C5+5oGaA2MGcjxwaLBABEBAAG0EFZhdWx0IFRlc3Qg
S2V5IDOJATgEEwECACIFAlXbkiMCGy8GCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEPR5S1b8
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pxwKHzOv02YM14NWC6bvKw2CQETLDPG4Cv8YMUmpho5tnMDdttIzp8HjyJRtHazU1uTes2/yuqh6
LHCejVJI0uST3RibquwdG3QjPP8Umxu+YC9+FOW2Kit/AQ8JluFDJdq3/wSX8VfYZrGdgmreE7KY
MolhCkzGSPj7oFygw8LqKoJvt9tCuBKhZMBuMv1sB5CoJIWdPoqOZc4U7L1XdqfKvFZR/RhuXgN1
lkI9MqrnLDpikL3Lk+ctLxWOjUCW8roqKoHZYBF7XPqdAfm5AQ0EVduSIwEIAOPcjd4QgbLlqIk3
s6BPRRyVzglTgUdf+I0rUDybaDJfJobZd8U6e4hkPvRoQ8tJefnz/qnD/63watAbJYcVTme40I3V
KDOmVGcyaDxiKP1disKqcEJd7XQiI72oAiXmEH0y+5UwnOMks/lwaAGDMGVRjHEXI6fiRPFsfTr8
7qvMJ3pW1OiOXVSezuBNTlmyJC7srQ1/nwxL337ev6D1zQZd3JuhcxLkHrUELLNwzhvcZ70vg645
jAmz8EdmvvoqEPPoHqKgP5AeHACOsTm953KHhgx3NYuGPU/RoIvugKt4Iq5nw7TWFTjPHGVF3GTQ
ry5CZ/AzXiL57hVEhDvmuT8AEQEAAYkCPgQYAQIACQUCVduSIwIbLgEpCRD0eUtW/C3G3cBdIAQZ
AQIABgUCVduSIwAKCRAFI/9Nx3K5IPOFCACsZ/Z4s2LcEoA51TW+T5w+YevlIuq+332JtqNIpuGI
WpGxUxyDyPT0YQWr0SObBORYNr7RP8d/I2rbaFKyaDaKvRofYr+TwXy92phBo7pdEUamBpfrm/sr
+2BgAB2x3HWXp+IMdeVVhqQe8t4cnFm3c1fIdxADyiJuV5ge2Ml5gK5yNwqCQPh7U2RqC+lmVlMJ
GvWInIRn2mf6A7phDYNZfOz6dkar4yyh5r9rRgrZw88r/yIlrq/c6KRUIgnPMrFYEauggOceZ827
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AJ37tEwC58Fboynly6OGOzgPS0xKnzkXMOtquTo0qEH/1bEUsBknn795BmZOTf4oBC5blN6qRv7c
GSP00i+sxql1NhTjJcjJtfOPUzgfW+Af/+HR648z4c7c6MCjDFKnk8ZkoGLRU7ISjenkNFzvu2bj
lxJkil0uJDlLPbbX80ojzV1GS9g+ZxVPR+68N1QLl2FU6zsfg34upmLLHG8VG4vExzgyNkOwfTYv
dgyRNTjnuPue6H12fZZ9uCNeG52v7lR3eoQcCxBOniwgipB8UJ52RWXblwxzCtGtDi/EWB3zLTUn
puKcgucA0LotbihSMxhDylaARfVO1QV6csabM/g=`

View File

@ -2,6 +2,7 @@ package http
import (
"encoding/hex"
"fmt"
"net/http"
"github.com/hashicorp/vault/vault"
@ -40,10 +41,19 @@ func handleSysInitPut(core *vault.Core, w http.ResponseWriter, r *http.Request)
return
}
switch {
case req.SecretShares > 0 && len(req.SecretPGPKeys) > 0 && len(req.SecretPGPKeys) != req.SecretShares:
respondError(w, http.StatusBadRequest, fmt.Errorf("Mismatch between key-shares and length of pgp-keys (you can specify pgp-keys alone)"))
return
case req.SecretShares == 0 && len(req.SecretPGPKeys) > 0:
req.SecretShares = len(req.SecretPGPKeys)
}
// Initialize
result, err := core.Initialize(&vault.SealConfig{
SecretShares: req.SecretShares,
SecretThreshold: req.SecretThreshold,
SecretPGPKeys: req.SecretPGPKeys,
})
if err != nil {
respondError(w, http.StatusBadRequest, err)
@ -63,8 +73,9 @@ func handleSysInitPut(core *vault.Core, w http.ResponseWriter, r *http.Request)
}
type InitRequest struct {
SecretShares int `json:"secret_shares"`
SecretThreshold int `json:"secret_threshold"`
SecretShares int `json:"secret_shares"`
SecretThreshold int `json:"secret_threshold"`
SecretPGPKeys []string `json:"secret_pgp_keys"`
}
type InitResponse struct {

View File

@ -2,6 +2,7 @@ package vault
import (
"bytes"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
@ -12,6 +13,9 @@ import (
"sync"
"time"
"golang.org/x/crypto/openpgp"
"golang.org/x/crypto/openpgp/packet"
"github.com/armon/go-metrics"
"github.com/hashicorp/vault/audit"
"github.com/hashicorp/vault/helper/mlock"
@ -78,9 +82,15 @@ var (
// SealConfig is used to describe the seal configuration
type SealConfig struct {
// SecretShares is the number of shares the secret is
// split into. This is the N value of Shamir
// split into. This is the N value of Shamir.
SecretShares int `json:"secret_shares"`
// SecretPGPKeys is the array of public PGP keys used,
// if requested, to encrypt the output unseal tokens. If
// provided, it sets the value of SecretShares. Ordering
// is important.
SecretPGPKeys []string `json:"secret_pgp_keys"`
// SecretThreshold is the number of parts required
// to open the vault. This is the T value of Shamir
SecretThreshold int `json:"secret_threshold"`
@ -106,6 +116,21 @@ func (s *SealConfig) Validate() error {
if s.SecretThreshold > s.SecretShares {
return fmt.Errorf("secret threshold cannot be larger than secret shares")
}
if len(s.SecretPGPKeys) > 0 && len(s.SecretPGPKeys) != s.SecretShares {
return fmt.Errorf("count mismatch between number of provided PGP keys and number of shares")
}
if len(s.SecretPGPKeys) > 0 {
for _, keystring := range s.SecretPGPKeys {
data, err := base64.StdEncoding.DecodeString(keystring)
if err != nil {
return fmt.Errorf("Error decoding given PGP key: %s", err)
}
_, err = openpgp.ReadEntity(packet.NewReader(bytes.NewBuffer(data)))
if err != nil {
return fmt.Errorf("Error parsing given PGP key: %s", err)
}
}
}
return nil
}
@ -703,7 +728,6 @@ func (c *Core) Initialize(config *SealConfig) (*InitResult, error) {
results := new(InitResult)
if config.SecretShares == 1 {
results.SecretShares = append(results.SecretShares, masterKey)
} else {
// Split the master key using the Shamir algorithm
shares, err := shamir.Split(masterKey, config.SecretShares, config.SecretThreshold)
@ -714,6 +738,33 @@ func (c *Core) Initialize(config *SealConfig) (*InitResult, error) {
results.SecretShares = shares
}
if len(config.SecretPGPKeys) > 0 {
if len(results.SecretShares) != len(config.SecretPGPKeys) {
return nil, fmt.Errorf("Mismatch between number of generated shares and number of PGP keys")
}
for i, keystring := range config.SecretPGPKeys {
data, err := base64.StdEncoding.DecodeString(keystring)
if err != nil {
return nil, fmt.Errorf("Error decoding given PGP key: %s", err)
}
entity, err := openpgp.ReadEntity(packet.NewReader(bytes.NewBuffer(data)))
if err != nil {
return nil, fmt.Errorf("Error parsing given PGP key: %s", err)
}
ctBuf := bytes.NewBuffer(nil)
pt, err := openpgp.Encrypt(ctBuf, []*openpgp.Entity{entity}, nil, nil, nil)
if err != nil {
return nil, fmt.Errorf("Error setting up encryption for PGP message: %s", err)
}
_, err = pt.Write(results.SecretShares[i])
if err != nil {
return nil, fmt.Errorf("Error encrypting PGP message: %s", err)
}
pt.Close()
results.SecretShares[i] = ctBuf.Bytes()
}
}
// Initialize the barrier
if err := c.barrier.Initialize(masterKey); err != nil {
c.logger.Printf("[ERR] core: failed to initialize barrier: %v", err)
@ -849,6 +900,7 @@ func (c *Core) SealConfig() (*SealConfig, error) {
c.logger.Printf("[ERR] core: invalid seal configuration: %v", err)
return nil, fmt.Errorf("seal validation failed: %v", err)
}
return &conf, nil
}