vendor: update all dependencies

vendor/github.com/youmark/pkcs8/kdf_scrypt.go

@@ -0,0 +1,62 @@
+package pkcs8
+
+import (
+	"encoding/asn1"
+
+	"golang.org/x/crypto/scrypt"
+)
+
+var (
+	oidScrypt = asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 11591, 4, 11}
+)
+
+func init() {
+	RegisterKDF(oidScrypt, func() KDFParameters {
+		return new(scryptParams)
+	})
+}
+
+type scryptParams struct {
+	Salt                     []byte
+	CostParameter            int
+	BlockSize                int
+	ParallelizationParameter int
+}
+
+func (p scryptParams) DeriveKey(password []byte, size int) (key []byte, err error) {
+	return scrypt.Key(password, p.Salt, p.CostParameter, p.BlockSize,
+		p.ParallelizationParameter, size)
+}
+
+// ScryptOpts contains options for the scrypt key derivation function.
+type ScryptOpts struct {
+	SaltSize                 int
+	CostParameter            int
+	BlockSize                int
+	ParallelizationParameter int
+}
+
+func (p ScryptOpts) DeriveKey(password, salt []byte, size int) (
+	key []byte, params KDFParameters, err error) {
+
+	key, err = scrypt.Key(password, salt, p.CostParameter, p.BlockSize,
+		p.ParallelizationParameter, size)
+	if err != nil {
+		return nil, nil, err
+	}
+	params = scryptParams{
+		BlockSize:                p.BlockSize,
+		CostParameter:            p.CostParameter,
+		ParallelizationParameter: p.ParallelizationParameter,
+		Salt:                     salt,
+	}
+	return key, params, nil
+}
+
+func (p ScryptOpts) GetSaltSize() int {
+	return p.SaltSize
+}
+
+func (p ScryptOpts) OID() asn1.ObjectIdentifier {
+	return oidScrypt
+}