arduino code problem with 3des encypt decrypt - encryption

Question

Hello i have problem with my code in 3des enc/dec it work only with 8 byte for me
i got result only this
the problem is result give only for 8 byte first not for all 48 byte
B1 09 DA E1 B7 1B 63 8E 17 02 07 83 1A 0D 1A DF 36 1F E4 6D 41 28 35 25 02 00 00 14 00 00 43 77 3B 38 98 37 15 20 F7 0C 18 56 03 00 00 14 00 00
below i attach my example code
#include <DES.h>
DES des;
void setup() {
Serial.begin(9600);
Serial.println("Hello!");
}
void loop() {
tdesTest();
delay(2000);
}
void tdesTest()
{
byte out[48];
byte in[48] = { 0xda, 0x9f, 0xab, 0xbe, 0x85, 0x26, 0x6f, 0x53, 0x9c, 0x8c, 0xbb, 0x03, 0x7f, 0x54, 0x61, 0x27, 0x3d, 0xfa, 0xb9, 0xf5, 0xfe, 0xb0, 0x9a, 0x3b, 0x3b, 0xc6, 0xf8, 0xb5, 0xe0, 0x84, 0x4d, 0xe1, 0x58, 0xe7, 0x88, 0x83, 0xae, 0x0d, 0xae, 0xdf, 0x36, 0x0d, 0xd0, 0x68, 0x45, 0x2b, 0x37, 0x24 };
byte key[] = {
0x15, 0x2b, 0xd8, 0x96, 0x57, 0xe0, 0x3f, 0xdc,
0x73, 0x75, 0xa0, 0x0e, 0x1f, 0xb1, 0xa3, 0x8b,
0xab, 0x09, 0x7c, 0x10, 0x3b, 0x80, 0x38, 0x46,
};
Serial.println();
Serial.println("====== Triple-DES test ======");
//encrypt
Serial.print("Encrypt...");
unsigned long time = micros();
des.tripleEncrypt(out, in, key);
time = micros() - time;
Serial.print("done. (");
Serial.print(time);
Serial.println(" micros)");
printArray(out);
//decrypt
for (int i = 0; i < 48; i++)
{
in[i] = out[i];
}
Serial.print("Decrypt...");
time = micros();
des.tripleDecrypt(out, in, key);
time = micros() - time;
Serial.print("done. (");
Serial.print(time);
Serial.println(" micros)");
printArray(out);
}
void printArray(byte output[])
{
for (int i = 0; i < 48; i++)
{
if (output[i] < 0x10)
{
Serial.print("0");
}
Serial.print(output[i], HEX);
Serial.print(" ");
}
Serial.println();
}