def Decrypt(ctxt, prikey):
ptxt = fhe.Ptxt()
if isinstance(ctxt, Ctxt):
fhe.Decrypt(ptxt, ctxt.ctxt_, prikey)
return ptxt.message
if isinstance(ctxt, CtxtList):
ptxt_list = ""
for c in reversed(ctxt.ctxts_):
fhe.Decrypt(ptxt, c.ctxt_, prikey)
ptxt_list += str(ptxt.message)
return int(ptxt_list, 2)
def Encrypt(ptxt, prikey, count=1, pubkey=None):
if pubkey is None:
pubkey = PubKeyGen(prikey)
if isinstance(ptxt, (int, long)):
msg = ptxt
ptxt = fhe.Ptxt()
if count == 1:
ptxt.message = msg
ctxt = Ctxt(pubkey)
fhe.Encrypt(ctxt.ctxt_, ptxt, prikey)
return ctxt
msg_bin = bin(msg)[2:].zfill(count)
msg_list = []
ct = CtxtList(count, pubkey)
for i in range(count):
ptxt.message = int(msg_bin[i], 2)
fhe.Encrypt(ct.ctxts_[count - i - 1].ctxt_, ptxt, prikey)
return ct
kNumTests = 3000
# Keys
pubkey = fhe.PubKey()
prikey = fhe.PriKey()
fhe.KeyGen(pubkey, prikey)
fhe.Initialize(pubkey)
# Plaintexts & Ciphertexts & Cuda Stream
ptxts1 = []
ptxts2 = []
ctxts1 = []
ctxts2 = []
st = []
for i in range(kNumTests):
ptxts1.append(fhe.Ptxt())
ptxts2.append(fhe.Ptxt())
ptxts1[i].message = random.randint(0, 1)
ptxts2[i].message = random.randint(0, 1)
ctxts1.append(fhe.Ctxt())
ctxts2.append(fhe.Ctxt())
fhe.Encrypt(ctxts1[i], ptxts1[i], prikey)
fhe.Encrypt(ctxts2[i], ptxts2[i], prikey)
st.append(fhe.Stream())
st[i].Create()
fhe.Synchronize()
start_time = timeit.default_timer()
for i in range(kNumTests):
def PtxtMod():
return fhe.Ptxt().PtxtSpace