def __init__(self, bArray, bOffset, bLength):
self.rsa_KeyPair = KeyPair( KeyPair.ALG_RSA, KeyBuilder.LENGTH_RSA_1024 )
self.rsa_KeyPair.genKeyPair();
self.rsa_PublicKey = self.rsa_KeyPair.getPublic();
self.rsa_PrivateKey = self.rsa_KeyPair.getPrivate();
self.cipherRSA = Cipher.getInstance(Cipher.ALG_RSA_PKCS1, False);
self.register(bArray, bOffset + 1, bArray[bOffset]);
def testRSASignVerify(self):
kp = KeyPair(KeyPair.ALG_RSA, KeyBuilder.LENGTH_RSA_1024)
kp.genKeyPair()
pubk = kp.getPublic()
self.assertEquals(1024, pubk.getSize())
privk = kp.getPrivate()
self.assertEquals(1024, privk.getSize())
c = Cipher.getInstance(Cipher.ALG_RSA_PKCS1, False)
c.init(privk, Cipher.MODE_ENCRYPT)
res = [0]*1024
l = c.doFinal([0,1,2,3,4,5], 0, 6, res, 0)
c.init(pubk, Cipher.MODE_DECRYPT)
res2 = [0]*1024
l = c.doFinal(res, 0, l, res2, 0)
self.assertEquals([0,1,2,3,4,5], res2[:l])
class HandsonRSA2048EncryptDecrypt (Applet):
""" actually 1024 ... we are testing not waiting ... """
rsa_PrivateKey = None
rsa_PublicKey = None
rsa_KeyPair = None
cipherRSA = None
dataOffset = ISO7816.OFFSET_CDATA
def __init__(self, bArray, bOffset, bLength):
self.rsa_KeyPair = KeyPair( KeyPair.ALG_RSA, KeyBuilder.LENGTH_RSA_1024 )
self.rsa_KeyPair.genKeyPair();
self.rsa_PublicKey = self.rsa_KeyPair.getPublic();
self.rsa_PrivateKey = self.rsa_KeyPair.getPrivate();
self.cipherRSA = Cipher.getInstance(Cipher.ALG_RSA_PKCS1, False);
self.register(bArray, bOffset + 1, bArray[bOffset]);
@staticmethod
def install(bArray, bOffset, bLength):
HandsonRSA2048EncryptDecrypt(bArray, bOffset, bLength);
def process(self, apdu):
if self.selectingApplet():
return
buf = apdu.getBuffer();
if buf[ISO7816.OFFSET_CLA] != 0:
ISOException.throwIt(framework.ISO7816.SW_CLA_NOT_SUPPORTED)
if buf[ISO7816.OFFSET_INS] != 0xAA:
ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED)
try:
action = {0x01: self.encryptRSA,
0x02: self.decryptRSA}
action[buf[ISO7816.OFFSET_P1]](apdu)
return
except KeyError:
ISOException.throwIt(ISO7816.SW_WRONG_P1P2)
def encryptRSA(self, apdu):
a = apdu.getBuffer()
byteRead = apdu.setIncomingAndReceive()
assert(self.rsa_PrivateKey.isInitialized())
self.cipherRSA.init(self.rsa_PublicKey, Cipher.MODE_ENCRYPT)
cyphertext = self.cipherRSA.doFinal(a, self.dataOffset, byteRead, a, self.dataOffset)
apdu.setOutgoing();
apdu.setOutgoingLength(cyphertext);
apdu.sendBytesLong(a, self.dataOffset, cyphertext);
def decryptRSA(self, apdu):
a = apdu.getBuffer()
byteRead = apdu.setIncomingAndReceive()
self.cipherRSA.init(self.rsa_PrivateKey, Cipher.MODE_DECRYPT)
textlength = self.cipherRSA.doFinal(a, self.dataOffset, byteRead, a, self.dataOffset)
apdu.setOutgoing()
apdu.setOutgoingLength(textlength )
apdu.sendBytesLong(a, self.dataOffset, textlength )
