forked from sassoftware/relic
/
util.go
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/
util.go
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//
// Copyright (c) SAS Institute Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package p11token
import (
"crypto/rand"
"encoding/hex"
"math/big"
"strings"
)
func makeKeyID() []byte {
keyID := make([]byte, 20)
if n, err := rand.Reader.Read(keyID); err != nil || n != 20 {
return nil
}
return keyID
}
func parseKeyID(value string) ([]byte, error) {
return hex.DecodeString(strings.Replace(value, ":", "", -1))
}
func bytesToBig(val []byte) *big.Int {
return new(big.Int).SetBytes(val)
}