43 lines
1.7 KiB
Java
43 lines
1.7 KiB
Java
package sega.a7;
|
|
|
|
import javacard.security.MessageDigest;
|
|
|
|
public class PrivkeyModulusWrite extends AuthCommand {
|
|
private static final short RECV_PACKET_SIZE = 302;
|
|
private static final byte AUTH_LEVEL = 2;
|
|
private static final short PARAM_SIZE = 46;
|
|
|
|
public PrivkeyModulusWrite(short cmd, AppData data, MakePacket packet, MessageDigest sha1, HmacSha1 hmacSha1,
|
|
Crypt crypt) {
|
|
super(cmd, RECV_PACKET_SIZE, PARAM_SIZE, AUTH_LEVEL, data, packet, sha1, hmacSha1, crypt);
|
|
}
|
|
|
|
public short core(byte[] data, short dataOffset, short dataLength) {
|
|
if (this.m_ee_data.getSflag_ee())
|
|
return AppConfig.A7_EEPWRITE_DISABLE;
|
|
|
|
short ramD_dataSize = (short) 256;
|
|
byte[] ramD_newRSAKey = this.m_ee_data.getGeneralBuffer_ramD();
|
|
if (ramD_newRSAKey.length < ramD_dataSize)
|
|
return AppConfig.A7_FAIL;
|
|
|
|
short ramD_decSize = decData(data, (short) (6 + dataOffset), ramD_dataSize, ramD_newRSAKey, (short) 0);
|
|
if (ramD_dataSize > ramD_decSize)
|
|
return AppConfig.A7_FAIL;
|
|
|
|
if (!this.m_ee_data.setRsaPriKeyModulus_ee(ramD_newRSAKey, (short) 0, (short) 256))
|
|
return AppConfig.A7_EEP_WRITEFAIL;
|
|
|
|
this.m_ee_data.activeRssaModulusUpdate_ramD();
|
|
if (this.m_ee_data.getRsaExponentUpdate_ramD()) {
|
|
byte[] exponent = this.m_ee_data.getRsaPriExponent_ee();
|
|
byte[] modulus = this.m_ee_data.getRsaPriModulus_ee();
|
|
if (!changeRsaKey_ee(modulus, (short) 0, (short) modulus.length, exponent, (short) 0,
|
|
(short) exponent.length))
|
|
return AppConfig.A7_FAIL;
|
|
}
|
|
|
|
return AppConfig.A7_SUCCESS;
|
|
}
|
|
}
|