62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
package tscipher
|
|
|
|
/*
|
|
#cgo CFLAGS: -O3
|
|
#include <stdlib.h>
|
|
char* decrypt(char* inBuff,char* buff,int buffLen,char* key,int keyLen){
|
|
for(int i=0;i<buffLen;i++){
|
|
inBuff[i]=buff[buffLen-i-1]^key[i%keyLen];
|
|
}
|
|
return inBuff;
|
|
}
|
|
char* encrypt(char* inBuff,char* buff,int buffLen,char* key,int keyLen){
|
|
for(int i=0;i<buffLen;i++){
|
|
inBuff[buffLen-i-1]=buff[i]^key[i%keyLen];
|
|
}
|
|
return inBuff;
|
|
}
|
|
*/
|
|
import "C"
|
|
|
|
import "unsafe"
|
|
|
|
type XOR struct {
|
|
key []byte
|
|
}
|
|
|
|
func (this *XOR) Decrypt(data []byte) (decrypted []byte, err error) {
|
|
// decrypted = data
|
|
// err = nil
|
|
// return
|
|
decrypted = make([]byte, len(data))
|
|
// for i := 0; i < len(data); i++ {
|
|
// decrypted[i] = data[len(data)-i-1] ^ this.key[i%len(this.key)]
|
|
// // decrypted[i] = data[i]
|
|
// }
|
|
key := this.key
|
|
C.decrypt((*C.char)(unsafe.Pointer(&decrypted[0])), (*C.char)(unsafe.Pointer(&data[0])), C.int(len(data)), (*C.char)(unsafe.Pointer(&key[0])), C.int(len(key)))
|
|
err = nil
|
|
return
|
|
}
|
|
|
|
func (this *XOR) Encrypt(data []byte) (encryped []byte, err error) {
|
|
// encryped = data
|
|
// err = nil
|
|
// return
|
|
encryped = make([]byte, len(data))
|
|
// for i := 0; i < len(data); i++ {
|
|
// encryped[len(data)-i-1] = data[i] ^ this.key[i%len(this.key)]
|
|
// // encryped[i] = data[i]
|
|
// }
|
|
key := this.key
|
|
C.encrypt((*C.char)(unsafe.Pointer(&encryped[0])), (*C.char)(unsafe.Pointer(&data[0])), C.int(len(data)), (*C.char)(unsafe.Pointer(&key[0])), C.int(len(key)))
|
|
err = nil
|
|
return
|
|
}
|
|
|
|
func NewXOR(key []byte) (cipher Cipher) {
|
|
return &XOR{
|
|
key: key,
|
|
}
|
|
}
|