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token: move nonce generation to a shared space

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This commit is contained in:
Michael Muré
2024-11-12 10:38:25 +01:00
parent 3c705ca150
commit 633b3d210a
3 changed files with 18 additions and 26 deletions
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15
token/delegation/delegation.go
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@@ -10,7 +10,6 @@ package delegation
// TODO: change the "delegation" link above when the specification is merged
import (
"crypto/rand"
"errors"
"fmt"
"time"
@@ -21,6 +20,7 @@ import (
"github.com/ucan-wg/go-ucan/pkg/command"
"github.com/ucan-wg/go-ucan/pkg/meta"
"github.com/ucan-wg/go-ucan/pkg/policy"
"github.com/ucan-wg/go-ucan/token/internal/nonce"
"github.com/ucan-wg/go-ucan/token/internal/parse"
)
@@ -74,7 +74,7 @@ func New(privKey crypto.PrivKey, aud did.DID, cmd command.Command, pol policy.Po
}
if len(tkn.nonce) == 0 {
tkn.nonce, err = generateNonce()
tkn.nonce, err = nonce.Generate()
if err != nil {
return nil, err
}
@@ -217,14 +217,3 @@ func tokenFromModel(m tokenPayloadModel) (*Token, error) {
return &tkn, nil
}
// generateNonce creates a 12-byte random nonce.
// TODO: some crypto scheme require more, is that our case?
func generateNonce() ([]byte, error) {
res := make([]byte, 12)
_, err := rand.Read(res)
if err != nil {
return nil, err
}
return res, nil
}