forked from spacemonkeygo/openssl
/
pbkdf2.go
44 lines (40 loc) · 1.51 KB
/
pbkdf2.go
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// Copyright (C) 2017. See AUTHORS.
//
// 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 openssl
// #include "shim.h"
import "C"
import (
"errors"
"unsafe"
)
func KeySHA1(password, salt []byte, iter, keyLen int) ([]byte, error) {
result := make([]byte, keyLen)
if 1 != C.X_PKCS5_PBKDF2_HMAC_SHA1(
(*C.char)(unsafe.Pointer(&password[0])), C.int(len(password)),
(*C.uchar)(unsafe.Pointer(&salt[0])), C.int(len(salt)), C.int(iter),
C.int(keyLen), (*C.uchar)(unsafe.Pointer(&result[0]))) {
return nil, errors.New("openssl: pbkdf2 sha1: cannot create key")
}
return result, nil
}
func KeySHA256(password, salt []byte, iter, keyLen int) ([]byte, error) {
result := make([]byte, keyLen)
if 1 != C.X_PKCS5_PBKDF2_HMAC(
(*C.char)(unsafe.Pointer(&password[0])), C.int(len(password)),
(*C.uchar)(unsafe.Pointer(&salt[0])), C.int(len(salt)), C.int(iter),
C.X_EVP_sha256(), C.int(keyLen), (*C.uchar)(unsafe.Pointer(&result[0]))) {
return nil, errors.New("openssl: pbkdf2 sha256: cannot create key")
}
return result, nil
}