def file_decrypt(encrypted_filepath, key_encrypted, iv_encrypted):
"""
对文件进行解密
:param encrypted_file_path: 加密文件的路径
:param key_encrypted: 加密的密钥
:param iv_encrypted: 加密的iv
:return: 解密后文件路径, 解密后文件的md5
"""
# 先用server的私钥对key和iv进行解密
key = RSA.Decrypto(key_encrypted, client_d, client_n)
iv = RSA.Decrypto(iv_encrypted, client_d, client_n)
# 打开并读取加密文件
encrypted_file = open(encrypted_filepath, 'rb')
encrypted_filedata = encrypted_file.read().decode('latin')
# 去掉.crypted后缀
origin_filepath = ".".join(encrypted_filepath.split('.')[:-1])
# 将解密后的内容写入新文件
origin_file = open(origin_filepath, 'wb')
origin_file.write(
DES.des_cbc_decrypt(encrypted_filedata, libnum.n2s(key),
libnum.n2s(iv)).encode('latin'))
# 关闭文件指针
encrypted_file.close()
origin_file.close()
# 计算解密后文件的md5消息摘要
origin_file_digest = get_file_md5(origin_filepath)
return origin_filepath, origin_file_digest
def calc(j):
# print j
a, b = gmpy.root(cipher + j * n, 3)
if b > 0:
m = a
#print '{:x}'.format(int(m)).decode('hex')
print j
print n2s(m)
def enc(m, pk):
m = s2n(m)
e, v = getrandbits(256), getrandbits(256)
E, V = pow(g, e, p), pow(g, v, p)
s = v + e * h2(n2s(E) + n2s(V))
c = m * pow(pk, e + v, p) % p
cap = (E, V, s)
return c, cap
def test_s2n_n2s():
s = b"long string to test"
val = 2418187513319072758194084480823884981773628276
assert s2n(s) == val
assert n2s(val) == s
with pytest.raises(TypeError):
s2n(100)
with pytest.raises(TypeError):
n2s("qwe")
def decrypt(dp, dq, p, q, c):
# InvQ = gmpy2.invert(q, p)
mp = pow(c, dp, p)
mq = pow(c, dq, q)
# m = (mp-mq)*InvQ*q+mq
n = [p, q]
c = [mp, mq]
# m = chinese_remainder(n,c)
m = (mp * pow(q, p - 1, p * q) + mq * pow(p, q - 1, p * q)) % (p * q)
print libnum.n2s(m)
def callE3SameNLinearM():
id1 = 1002
id2 = 2614
c1 = 0x547995f4e2f4c007e6bb2a6913a3d685974a72b05bec02e8c03ba64278c9347d8aaaff672ad8460a8cf5bffa5d787c5bb724d1cee07e221e028d9b8bc24360208840fbdfd4794733adcac45c38ad0225fde19a6a4c38e4207368f5902c871efdf1bdf4760b1a98ec1417893c8fce8389b6434c0fee73b13c284e8c9fb5c77e420a2b5b1a1c10b2a7a3545e95c1d47835c2718L
c2 = 0x547995f4e2f4c007e6bb2a6913a3d685974a72b05bec02e8c03ba64278c9347d8aaaff672ad8460a8cf5bffa5d787c72722fe4fe5a901e2531b3dbcb87e5aa19bbceecbf9f32eacefe81777d9bdca781b1ec8f8b68799b4aa4c6ad120506222c7f0c3e11b37dd0ce08381fabf9c14bc74929bf524645989ae2df77c8608d0512c1cc4150765ab8350843b57a2464f848d8e08L
n = 25357901189172733149625332391537064578265003249917817682864120663898336510922113258397441378239342349767317285221295832462413300376704507936359046120943334215078540903962128719706077067557948218308700143138420408053500628616299338204718213283481833513373696170774425619886049408103217179262264003765695390547355624867951379789924247597370496546249898924648274419164899831191925127182066301237673243423539604219274397539786859420866329885285232179983055763704201023213087119895321260046617760702320473069743688778438854899409292527695993045482549594428191729963645157765855337481923730481041849389812984896044723939553
a = 1
b = id1 - id2
m2 = e3SameNLinearM(a, b, c1, c2, n) - id2
print libnum.n2s(m2)
def pqec(p, q, e, c):
n = p * q
phi = (p - 1) * (q - 1)
d = gmpy2.invert(e, phi)
m = pow(c, d, n)
print('[HEX]', hex(m)[2:])
try:
print(libnum.n2s(m))
return (libnum.n2s(m))
except:
pass
return m
def getFlag((a, b, c)):
M = d["M"]
p = d["p"]
q = d["q"]
s1, s2, _ = xgcd(a, b)
if s1 < 0:
s1 = -s1
p = invmod(p, M)
elif s2 < 0:
s2 = -s2
q = invmod(q, M)
flag = (pow(p, s1, M) * pow(q, s2, M)) % M
print n2s(flag)
def transfer_decrypt(cipehr, key_encrypted, iv_encrypted):
"""
对接收到的每一个分组进行解密
:param cipehr: 收到的加密分组
:param key_encrypted: 收到的加密过的key
:param iv_encrypted: 收到的加密过的iv
:return: 明文
"""
# 先用client的私钥对key和iv进行解密
key = RSA.Decrypto(key_encrypted, client_d, client_n)
iv = RSA.Decrypto(iv_encrypted, client_d, client_n)
# 用key和iv对收到的密文分组解密
message = DES.des_cbc_decrypt(cipehr, libnum.n2s(key), libnum.n2s(iv), 'b')
return message
def getFlag():
junk_data = [
0x09, 0x23, 0x8C, 0xB9, 0x2F, 0x19, 0x8D, 0xF8, 0xF3, 0x79, 0x81, 0x87, 0x93, 0x99, 0x35, 0x52, 0x9C, 0xF0, 0x34, 0x99, 0x23, 0xB1, 0x84, 0x1D, 0xF0, 0x8F, 0x7E, 0x45, 0x0F, 0xCB, 0x40, 0xF8, 0x4E, 0xD1, 0x42, 0x29, 0x76, 0x17, 0x43, 0xE1, 0xAC, 0x04, 0x37, 0xA0, 0xE4, 0x30, 0x59, 0xA9, 0x68, 0xD9, 0x1C, 0x96, 0xFC, 0x1D, 0x85, 0xEA, 0xD2, 0x94, 0x07, 0x90, 0x09, 0xD2, 0xC9, 0x19, 0x86, 0xC9, 0xDC, 0x24, 0x6F, 0x3B, 0x5C, 0x92, 0x4C, 0x9F, 0xD9, 0x50, 0xDD, 0x98, 0x37, 0x1C, 0xB1, 0xDA, 0xA5, 0x44, 0xF2, 0x8E, 0x43, 0x66, 0x91, 0xA3, 0xDF, 0xAF, 0x3A, 0x7E, 0x65, 0x91, 0x19, 0x22, 0xFD, 0xFE, 0x14, 0xBA, 0x0A, 0xE1, 0xB9, 0x61, 0x73, 0x86, 0xE1, 0x96, 0xC1, 0x67, 0xCE, 0x06, 0x25, 0x74, 0xF0, 0x2E, 0xA3, 0xBB, 0xED, 0x68, 0x3E, 0x53, 0x30, 0x43, 0x0E, 0x53, 0xB8, 0x8A, 0x9C, 0x95, 0x41, 0xC3, 0xB0, 0x25, 0x1C, 0xCB, 0x38, 0x86, 0xA6, 0x7A, 0x6F, 0xF2, 0x63, 0x0A, 0x19, 0x7C, 0x07, 0xDA, 0x6F, 0xA2, 0x4E, 0xD2, 0x74, 0x4A, 0xF9, 0xAF, 0xC2, 0x9C, 0xFD, 0x89, 0xE6, 0x04, 0x11, 0xF6, 0x6F, 0xF5, 0x98, 0x55, 0x9D, 0x37, 0x12, 0xF2, 0xA6, 0x66, 0xBE, 0x85, 0x87, 0x8E, 0x87, 0x64, 0x5E, 0xA0, 0x61, 0x52, 0xD8, 0xBB, 0x39, 0x3D, 0x7B, 0xD2, 0x47, 0x27, 0x37, 0x30, 0xB5, 0xF8, 0x90, 0xFC, 0x50, 0xF3, 0xC1, 0x5C, 0x6B, 0xA4, 0xBE, 0x8D, 0xA5, 0xEA, 0xDD, 0x72, 0xF2, 0x28, 0xE1, 0x74, 0xEF, 0x07, 0x10, 0xCF, 0x39, 0x7D, 0x58, 0xE7, 0x46, 0x09, 0x04, 0xE9, 0xE9, 0x37, 0xD7, 0xE1, 0x20, 0xF9, 0xC2, 0x54, 0x28, 0xE7, 0x30, 0xE8, 0x86, 0x58, 0x77, 0x6C, 0x7D, 0x2E, 0x00, 0xCE, 0xCC, 0x9C, 0xFB, 0xA3, 0x8D, 0xD1, 0x04, 0x98, 0x9D, 0x4F, 0xE8, 0x1F, 0x60, 0x3A, 0x8A, 0x5B, 0x1A, 0x11, 0x55, 0xF0, 0x6B, 0xCF, 0xD8, 0x6D, 0x75, 0x30, 0x9A, 0xD8, 0xD8, 0x5D, 0x2E, 0x90, 0x7E, 0x43, 0x5C, 0xEB, 0x3F, 0x26, 0x78, 0xAF, 0xB3, 0xB0, 0xC3, 0x1C, 0xE9, 0xAB, 0x94, 0xE6, 0xC1, 0x49, 0x25, 0x4B, 0xAA, 0xFF, 0x59, 0xE1, 0x11, 0x48, 0x3C, 0xB9, 0x16, 0x67, 0x27, 0xF9, 0xA0, 0x29, 0x68, 0x2E, 0xFB, 0x45, 0x5D, 0x29, 0x12, 0x0A, 0x36, 0x04, 0x54, 0xB3, 0xCF, 0x87, 0x24, 0x37, 0x8E, 0x7C, 0x5A, 0xEF, 0xF8, 0x33, 0xE2, 0xE0, 0x89, 0x83, 0xA8, 0x4D, 0x72, 0x28, 0x80, 0xAA, 0xD4, 0x0E, 0xDD, 0x72, 0xA5, 0x0B, 0xAD, 0x85, 0x6F, 0xEE, 0x44, 0xAD, 0x43, 0x7D, 0x30, 0xC2, 0x15, 0xC9, 0x72, 0x12, 0x53, 0x8A, 0x37, 0x9D, 0xF2, 0x64, 0x1D, 0x21, 0x5E, 0x49, 0x78, 0x54, 0xC0, 0xF0, 0xA9, 0x81, 0xE3, 0x32, 0xD4, 0x99, 0x81, 0x88, 0x64, 0xFE, 0x20, 0x92, 0x89, 0xD0, 0xC9, 0x5A, 0xCE, 0xFA, 0xB5, 0xE4, 0x2A, 0x9D, 0x50, 0xAB, 0x32, 0x35, 0x8D, 0x31, 0x4C, 0x94, 0x6C, 0xC0, 0xEF, 0xF4, 0xE2, 0x40, 0xF7, 0x47, 0x51, 0xDB, 0x1C, 0x6D, 0x3B, 0x6B, 0xEA, 0xDA, 0x16, 0x9A, 0x27, 0x68, 0xA3, 0x73, 0xBF, 0x9D, 0x40, 0x8F, 0x07, 0xF3, 0xC7, 0x65, 0x57, 0xB7, 0x7E, 0x0C, 0xEA, 0xC9, 0x9F, 0x7F, 0x46, 0x82, 0xE6, 0x5C, 0xE6, 0xDF, 0xFE, 0x42, 0x41, 0x12, 0x62, 0x33, 0x74, 0xFF, 0xE9, 0x52, 0xD1, 0x0F, 0x75, 0x88, 0x43, 0x17, 0x02, 0x5A, 0x9E, 0x29, 0xAD, 0x40, 0x62, 0xDB, 0x1F, 0x2C, 0xE7, 0xA8, 0x6E, 0xAC, 0x62, 0xC4, 0xBE, 0xEC, 0x98, 0xB3, 0xE9, 0x44, 0xD4, 0x3E, 0xC3, 0x9E, 0x0F, 0xBC, 0xAD, 0xC6, 0x28, 0x28, 0x95, 0x93, 0xD1, 0xD5, 0x03, 0xAA, 0x78, 0xE3, 0x0D, 0x20, 0x90, 0x58, 0x82, 0xCC, 0x5F, 0x46, 0xF9, 0x2C, 0x17, 0x55, 0xDB, 0x96, 0x0A, 0x34, 0x69, 0x6B, 0x87, 0x2B, 0xB2, 0x45, 0x9D, 0x7C, 0xEA, 0xF3, 0xAB, 0x19, 0x6A, 0xE3, 0x73, 0x9D, 0x84, 0x6C, 0x3A, 0x04, 0xB5, 0x07, 0x3D, 0x10, 0x3E, 0x67, 0x5E, 0x53, 0x86, 0xDB, 0xA0, 0x39, 0xAB, 0xE0, 0x06, 0x22, 0x27, 0x8C, 0x81, 0xD3, 0xC6, 0x1F, 0x15, 0x35, 0x8D, 0x26, 0x8D, 0x67, 0x03, 0xBD, 0xC3, 0x76, 0xF7, 0x27, 0x29, 0x82, 0xAF, 0x64, 0x9D, 0x15, 0x0F, 0xBE, 0xAD, 0xAB, 0x39, 0x50, 0xD7, 0xB9, 0x1B, 0x0A, 0x3F, 0x99, 0xCC, 0x6A, 0xF5, 0xFF, 0x5B, 0xDE, 0x9F, 0xD1, 0x4D, 0xFC, 0xF4, 0x21, 0x83, 0xD0, 0x33, 0xAB, 0xA4, 0x3E, 0x3B, 0x3A, 0x67, 0x41, 0xDE, 0x93, 0xB1, 0x2A, 0xC4, 0x98, 0xDA, 0xEA, 0x51, 0xFD, 0xCF, 0xEB, 0xF0, 0xC7, 0x1F, 0xF6, 0x4C, 0xFC, 0x04, 0xEF, 0x24, 0x51, 0xBF, 0x0D, 0xB0, 0x50, 0x2C, 0x06, 0xAA, 0x0E, 0x2F, 0x74, 0xB0, 0xD5, 0x27, 0xE7, 0xD3, 0xC4, 0xA7, 0x57, 0x0D, 0x31, 0xCE, 0xD2, 0x5F, 0x6F, 0x99, 0x43, 0xDB, 0x93, 0x59, 0x24, 0xC0, 0xA8, 0x29, 0x3F, 0xDA, 0x70, 0xBD, 0x92, 0x8A, 0xC5, 0x76, 0xF9, 0x31, 0x8B, 0x98, 0xD6, 0x0A, 0x7C, 0xA0, 0x8D, 0x9B, 0x96, 0x4A, 0x77, 0x5B, 0xC2, 0xE5, 0x46, 0x72, 0x28, 0x4F, 0x54, 0x44, 0x06, 0xB4, 0xE5, 0xB2, 0x6C, 0xEF, 0x4E, 0x1E, 0x7E, 0xAE, 0x0A, 0xC0, 0x7D, 0x1E, 0x6E, 0x80, 0x3A, 0xDF, 0x88, 0x07, 0x4B, 0xF8, 0xCE, 0x3A, 0x40, 0x60, 0x6F, 0xDA, 0x9F, 0xE4, 0xD9, 0x58, 0xA3, 0x19, 0xEC, 0x5A, 0xD8, 0x85, 0x52, 0x1E, 0xA8, 0xCA, 0x04, 0xDC, 0x5D, 0xD2, 0x77, 0x45, 0x35, 0xB0, 0x5A, 0xD1, 0xCD, 0xDC, 0x30, 0xA6, 0x14, 0xA6, 0xA1, 0xBF, 0x24, 0xE1, 0xDE, 0xE6, 0xEF, 0xA9, 0x0E, 0x00, 0x64, 0x5D, 0xEF, 0x11, 0x4A, 0xF3, 0x38, 0x52, 0x86, 0x81, 0x6F, 0x42, 0xFB, 0x8B, 0x4B, 0x36, 0xFB, 0x79, 0x9D, 0x82, 0xBC, 0x0D, 0x01, 0x14, 0x42, 0x86, 0xD7, 0x65, 0xB4, 0x51, 0xBF, 0xEC, 0x64, 0xE4, 0x61, 0x21, 0x63, 0x99, 0xD3, 0xC5, 0xFE, 0x58, 0x0A, 0xF5, 0xA1, 0xD5, 0xB0, 0xD9, 0xB4, 0x8A, 0x02, 0xC7, 0x50, 0xDE, 0xDE, 0xF2, 0xBE, 0x13, 0xF8, 0x3F, 0x23, 0x51, 0x4C, 0x19, 0x40, 0x74, 0xA6, 0x35, 0xBA, 0x4B, 0x71, 0x1B, 0xAE, 0xFE, 0x43, 0x8F, 0xA4, 0x25, 0xA5, 0xE5, 0x31, 0xB3, 0x17, 0x00, 0x83, 0x34, 0x4A, 0xBA, 0x05, 0xCF, 0xBB, 0xB8, 0x67, 0x25, 0xE0, 0xD3, 0x53, 0xFC, 0xAA, 0xBA, 0xB3, 0x6C, 0x8A, 0xEC, 0x8F, 0x9C, 0xDB, 0x47, 0x05, 0x8E, 0x5A, 0x3E, 0xD4, 0x7B, 0x5F, 0xC5, 0x42, 0xD1, 0x6C, 0x2C, 0x99, 0xBA, 0xFD, 0x9D, 0x6B, 0x52, 0xD2, 0x34, 0x86, 0x6A, 0x5D, 0x5E, 0x50, 0xB3, 0x58, 0xD4, 0x3A, 0xB7, 0x12, 0x46, 0x0E, 0x40, 0x81, 0xA5, 0x21, 0x5D, 0x5E, 0x63, 0xE5, 0x3B, 0x30, 0x3B, 0x6E, 0x13, 0x73, 0x36, 0x20, 0x3C, 0xE3, 0xA9, 0x99, 0x70, 0x49, 0x92, 0xFC, 0xFA, 0x70, 0x24, 0x6F, 0x7B, 0x1D, 0x93, 0x8D, 0x7D, 0xB4, 0xAE, 0x2A, 0x7D, 0x53, 0x5C, 0x68, 0xEA, 0xFA, 0x94, 0x58, 0x54, 0x28, 0xCF, 0x23, 0xFB, 0x70, 0x80, 0x7F, 0xF0, 0x4F, 0x2A, 0x0B, 0x94, 0xD7, 0x3E, 0x7F, 0x78, 0x45, 0xFC, 0xE3, 0xA9, 0x3E, 0x1E, 0x23, 0xA3, 0x7E, 0x06, 0x00, 0x1D, 0x66, 0x50, 0x9D, 0xD1, 0x1F, 0x65, 0x7E, 0x76, 0x8F, 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a1 = 4284256177
a2 = 1234567890
a3 = 1095061718431
v5 = 4
flag = n2s(0x8B9551FA * a3)[::-1][:v5]
# print flag
while a2:
v3 = v5
v5 += 1
c = chr(((junk_data[a1 & 0xFFF] ^ a2) & 0xFF) % 128)
# flag += c if 0x20 <= ord(c) < 0x7f else ""
flag += c
# print ord(c)
a1 *= 77777
a2 = a3 ^ (a2 >> 1)
a3 >>= 1
flag += c
print flag
print len(flag)
print v5
def eNotCoprimePhi():
c = 2485360255306619684345131431867350432205477625621366642887752720125176463993839766742234027524
n = 23292710978670380403641273270002884747060006568046290011918413375473934024039715180540887338067
e = 3
p1 = 32581479300404876772405716877547
p2 = 27038194053540661979045656526063
p3 = 26440615366395242196516853423447
c1 = eval(
scryptos.parigp(["Vec(liftall(sqrtnall(Mod(%d, %d), 3)))" % (c, p1)]))
c2 = eval(
scryptos.parigp(["Vec(liftall(sqrtnall(Mod(%d, %d), 3)))" % (c, p2)]))
c3 = eval(
scryptos.parigp(["Vec(liftall(sqrtnall(Mod(%d, %d), 3)))" % (c, p3)]))
print c1, c2, c3
#c1 = [6149264605288583791069539134541, 13404203109409336045283549715377, 13028011585706956936052628027629]
#c2 = [19616973567618515464515107624812]
#c3 = [13374868592866626517389128266735, 7379361747422713811654086477766, 5686385026105901867473638678946]
for x in c1:
for y in c2:
for z in c3:
m = libnum.solve_crt([x, y, z],
[p1, p2, p3]) #chinese_remainder(ak, nk)
d = libnum.n2s(m)
if "0ctf" in d:
print d[d.find("0ctf"):].strip()
def gmgj(n, c1, c2, e1, e2):
s = gmpy2.gcdext(e1, e2)
s1 = s[1]
s2 = -s[2]
c2 = gmpy2.invert(c2, n)
m = (pow(c1, s1, n) * pow(c2, s2, n)) % n
print(libnum.n2s(m))
def decipher(c, pk, sk):
[n, g] = pk
lmd = sk
u = gmpy2.invert(L(gmpy2.powmod(g, lmd, n ** 2), n), n) % n
m = L(gmpy2.powmod(c, lmd, n ** 2), n) * u % n
plaintext = libnum.n2s(m)
return plaintext
def xor_add_oracle():
known = ""
for i in range(BLOCK_SIZE * 8 - 1):
xor_res = xor(1 << i)
add_res = add(1 << i)
if xor_res == add_res:
known = "0" + known
else:
known = "1" + known
key = "1" + known
info = guess_key(libnum.n2s(int(key, 2)))
if info != False:
return info
else:
key = "0" + known
return guess_key(libnum.n2s(int(key, 2)))
def Basic_Broadcast_Attack(data):
if data['e'] == len(data['n']) == len(data['c']):
t_to_e = chinese_remainder(data['n'], data['c'])
t = int(gmpy2.iroot(t_to_e, data['e'])[0])
log.info('Here are your plain text: \n' + libnum.n2s(t))
else:
log.error('wrong json file, check examples')
def rsa(e, n, p, q, c):
from libnum import n2s, xgcd, gcd
assert p * q == n
phi = (p - 1) * (q - 1)
assert gcd(e, phi) == 1
d = xgcd(e, phi)[0] % phi
return n2s(pow(c, d, n))
def main():
e1 = 65537
e2 = 395327
n = 762292637561009841867381758891924078920161551681011409810119236902708316218732647411043943763437022249138626076545685661730482641366923692658850431766314218412351837270927506312564544720954923062726662877953440678352431207958623308285911531147439741895411339784197821335423242138644430759797990474398292665026255344351314097831344143699467288732880374170750860467471905921107741006885109935239227868010666908525916679008871504582450836566108323926895929095994914698970059270570182580904903005923375868411609696598681700414843568442218100923302843261091071533416388834137121589901414277494938275241081203545819980264192183417604433935106780970110122975048006585657632026810857827012062220556533199813923599855002754246118206960819774209743569779749774598608808112482297107880631488151767561999274962162175282851451341191623222413183297157111802280844016550160932800325073699005271344653372643829523557629478171849469222857004697685188375657637289718545309995206957844911728971581888022289420352845395758422056507873315923916458799916423955515257867605617687429492984387761566675577947632934213753257825601450323638701033675536654894676100626699720281478967866417903915072119409044838795907066746433347300603690475300736848821164691031
c1 = 91305913831214369377952269118161386003598023255485037043787231386393955913536147951327587587463685458285050904908606519471516585546641448049728693190905879280840165324662394536944611092018044651371870986413401191811244830102613672620955502806522821766703471780501595829827875795245077468666876924554483719367619785416487802738542307755841705317059328580966011761532447398826642223971344197882218789319343867872361384139568302372092803096038907172887382345170895273112014635399900800642737687324107565370573604700095505442212165699978970932019423809817487089085601763117309208863650351775335912245447387452956788773428626555630061201067204115092554187354312571068755262098974796820411503610378273433454274777409673603938861625985976632847656111827263952716196589771597261150375688197316301237918777772060246839505840400511836084221123300725351892908105214743311210231911274804713194290807741144717602270672051963664718188579120547722073387555742534912295882639385513725274066607278662476330784799812834843237551921507530373632320031381036550506607567061408192533501338206431901557732808859610231949222985385162467033555818794827557794123641737919050344373856601672258488664080854100467312218803256169436644089734181008742490711580042
c2 = 704672807914934785540657591440512058022586636125385843168732955073514077655455813212009493863389059666899528836516095699125514067099710358014253776587605045075141314272189607334786100207510015707758739101384698920619364876535606210899911129217151741959517344988838631586846350008457359747129948031415545489245577138170245470822851099234206216384013980124363443997339235504467924028046028680088155373925683649047495400986970876581673756506916765485275724626482137125637187439908185652963713581266007823789444165379453792444581101766966160504792503774410227806705414033756780127831024884593928515162191834028847725582871710066858868947182430104633621199015107401148118418338824086178489351697402962464798943542690540041445116576626615679919422505195176433797369659680306125076741925059577683214898660950897895672017286721867404885976418884202714626278569772713938624652451293587114431454520793129201159777144870706434853118587971437409703156441560836614022558588075615856594959231216241788071137142857422791753028932100557615225152094338580103681806055204290166319011784438838989437111665407114828731652938898822052627483844276822323929616602820305955544961236345999748237725866983443344310328933228220159896431099123550617191875040204
s = egcd(e1, e2)
s1 = s[1]
s2 = s[2]
# 求模反元素
if s1 < 0:
s1 = -s1
c1 = invert(c1, n)
elif s2 < 0:
s2 = -s2
c2 = invert(c2, n)
m = pow(c1, s1, n) * pow(c2, s2, n) % n
string = n2s(m)
print(string)
for j in range(48):
new_string = ''
for i in string:
if ord(i) + j <= 126:
i = chr(ord(i) + j)
else:
i = chr(ord(i) - 94 + j)
new_string += i
print(new_string)
def smalle(n, c, e=3):
m = 0 # res是m
for k in range(200000000):
if gmpy2.iroot(c + n * k, e)[1] == 1:
m = gmpy2.iroot(c + n * k, e)[0]
print(k, m)
print(libnum.n2s(m))
return m
def xor(KEY, number, dec):
key = libnum.s2n(KEY) #32Bytes to a big num
key = (key ^ number) & mask #low 32 B
KEY = libnum.n2s(key).rjust(BLOCK_SIZE, "\x00")
dec = dec + (BLOCK_SIZE - len(dec) % BLOCK_SIZE) * "\x00" #dec\x00...
assert len(dec) % BLOCK_SIZE == 0
AES_ECB = AES.new(KEY, AES.MODE_ECB)
return AES_ECB.encrypt(dec)
def rsaDecrypt():
n = 322831561921859
p = 13574881
q = 23781539
e = 23
rsa = RSA.construct((n, long(e), long(gmpy2.invert(e, (p - 1) * (q - 1)))))
c = libnum.n2s(0xdc2eeeb2782c)
print rsa.decrypt(c)
def add(KEY, number, dec):
key = libnum.s2n(KEY)
key = (key + number) & mask
KEY = libnum.n2s(key).rjust(BLOCK_SIZE, "\x00")
dec = dec + (BLOCK_SIZE - len(dec) % BLOCK_SIZE) * "\x00"
assert len(dec) % BLOCK_SIZE == 0
AES_ECB = AES.new(KEY, AES.MODE_ECB)
return AES_ECB.encrypt(dec)
def decrypt(enc, key):
enc = int.from_bytes(base64.b64decode(enc), "big")
jkey = json.loads(key)
exp = int(jkey["PrivateKey"]["Exp"])
mod = int(jkey["PrivateKey"]["Mod"])
text = pow(enc, exp, mod)
return libnum.n2s(int(text))
def rk_gen(sk, pki, group=9):
x, r = getrandbits(512) % p, getrandbits(512) % p
prefix = n2s(pow(g, x * sk, p)).rjust(64, b'\x00')
encoder = [1, -pow(pki, x * sk, p) % p]
for i in range(1, group + 1):
pkj = getrandbits(512)
new_encoder = [1]
cur = pow(pkj, x * sk, p)
for j in range(1, i + 1):
new_encoder.append((encoder[j] + (-1) * cur * encoder[j - 1]) % p)
new_encoder.append(encoder[i] * cur * (-1) % p)
encoder = new_encoder
encoder[-1] += r
dd = h2(prefix + n2s(r).rjust(64, b'\x00')) | 1
rk = sk * dd
#print("dd:",dd)
return rk, encoder[1:], prefix
def test_genprime_str(self):
begin = "preved medved \xde\xad\xbe\xef\x00\x00\x00\x00"
n = libnum.generate_prime_from_string(begin)
s = libnum.n2s(n)
self.assertTrue(s.startswith(begin))
self.assertTrue(libnum.ferma_test(n, 15))
self.assertRaises(TypeError, libnum.generate_prime_from_string, 31337)
self.assertRaises(ValueError, libnum.generate_prime_from_string, "test", 8)
self.assertRaises(ValueError, libnum.generate_prime_from_string, "test", -8)
def dpenc(e, n, dp, c):
for i in range(1, 65538):
if (dp * e - 1) % i == 0:
if n % (((dp * e - 1) // i) + 1) == 0:
p = ((dp * e - 1) // i) + 1
q = n // (((dp * e - 1) // i) + 1)
phi = (p - 1) * (q - 1)
d = gmpy2.invert(e, phi) % phi
print(libnum.n2s(pow(c, d, n)))
def share_N(N, e1, e2, c1, c2):
gcd, s, t = gmpy2.gcdext(e1, e2)
if s < 0:
s = -s
c1 = gmpy2.invert(c1, N)
if t < 0:
t = -t
c2 = gmpy2.invert(c2, N)
plain = gmpy2.powmod(c1, s, N) * gmpy2.powmod(c2, t, N) % N
log.info('Here are your plain text: \n' + libnum.n2s(plain))
def hastads(N, e, c):
log.info(
'start Hastad attack. If there was no result after a long time. Press ctrl+c to stop, and try other ways.')
n = 0
while True:
if gmpy2.iroot(c + n * N, e)[1]:
log.info('Here are your plain text: \n' +
libnum.n2s(gmpy2.iroot(c + n * N, e)[0]))
return
n += 1
def dpdqqpc(dp, dq, p, q, c):
InvQ = gmpy2.invert(q, p)
mp = pow(c, dp, p)
mq = pow(c, dq, q)
m = (((mp - mq) * InvQ) % p) * q + mq
try:
print(libnum.n2s(m))
except:
print(hex(m))
return hex(m)[2:]
def npk(p, k, e, c):
phi = (p - 1) * (p**(k - 1))
n = p**k
d = gmpy2.invert(e, phi)
m = int(pow(c, d, n))
print('[HEX]' + hex(m)[2:])
try:
print('[STR]' + libnum.n2s(m))
except:
pass
return m
def nNotCoprime():
n = []
c = []
with open("topic.txt") as f:
for line in f:
if line.startswith('e = '):
e = int(line[4:])
elif line.startswith('n = '):
x = int(line[4:])
n.append(x)
elif line.startswith('c = '):
x = int(line[4:])
c.append(x)
p, i, j = getGcd(n)
print p, i, j
q = n[i] / p
phin = (p - 1) * (q - 1)
d = gmpy2.invert(e, phin)
plain = gmpy2.powmod(c[i], d, n[i])
print libnum.n2s(plain)
def decode():
p = gmpy2.mpz(0x9703D6BF1C83E5283B493280E3023189C1FCEB)
e = gmpy2.mpz(65537)
#n=gmpy2.mpz(88823674699834945884673680518251167031710622232347533247855012752302681875831)
q = gmpy2.mpz(0xD0E7CDA746B95CC87A9950A39D517741673BB5)
n = q * p
phi_n = (p - 1) * (q - 1)
#phi_n=gmpy2.mpz(12751233068921660030612916837777215319379069282742136325030797062909672039089934934221239115485586280430590845472766049168697383450704700718782796213884777853521288190486273813470594846213362365214292304968173747351787497627548256390761835991421870385747500426523978371199522913178843735834456640845496344427395398489958112683630863655472157344730425041696114659641989881007569684657783143670345775421453015125096975736894328388304053351209164720711884543299538269782080125262879377841984490947037736073628163453677448757017879393251327788422188141054595457742661911138046885073801508554474982316067765454164812051813)
d = gmpy2.invert(e, phi_n) #求倒数
#d=4221909016509078129201801236879446760697885220928506696150646938237440992746683409881141451831939190609743447676525325543963362353923989076199470515758399
print "private key:"
print d
c = gmpy2.mpz(
0x448EEEBA1CF31BA2E9E22A9E6F37AB2C70A2E19485E819A8CB5D897E65B01DB6E692DD6D0B30
)
print "plaintext:"
print n2s(pow(c, d, n))
print pow(c, d, n)
from hashlib import md5
import libnum, string
from Crypto.Cipher import AES
start_time = 1453680000
stop_time = 1454284800
ciphertext = libnum.n2s(0xa99210d796a1e37503febf65c329c1b2)
for time in range(start_time, stop_time):
i = int(time)
key = md5(str(i)).digest()
cipher = AES.new(key, AES.MODE_ECB)
message = cipher.decrypt(ciphertext)
if all(c in string.printable for c in message):
print message
import libnum, string n = 0x219cc6aa0ec13d041c4971 m = 0xac470f7350ea67d7a0696 p = 1398023584459 q = 29065965967667 tot = (p-1)*(q-1) for e in libnum.primes(10000000): if tot % e != 0: d = libnum.invmod(e,tot) s = libnum.n2s(pow(m,d,n)) noprint = False for c in s: if c not in string.printable: noprint = True break if not noprint: print s
import hmac
from libnum import n2s,s2n
import hashlib
from Crypto.Cipher import DES
dhp=s2n('\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xC9\x0F\xDA\xA2\x21\x68\xC2\x34\xC4\xC6\x62\x8B\x80\xDC\x1C\xD1\x29\x02\x4E\x08\x8A\x67\xCC\x74\x02\x0B\xBE\xA6\x3B\x13\x9B\x22\x51\x4A\x08\x79\x8E\x34\x04\xDD\xEF\x95\x19\xB3\xCD\x3A\x43\x1B\x30\x2B\x0A\x6D\xF2\x5F\x14\x37\x4F\xE1\x35\x6D\x6D\x51\xC2\x45\xE4\x85\xB5\x76\x62\x5E\x7E\xC6\xF4\x4C\x42\xE9\xA6\x37\xED\x6B\x0B\xFF\x5C\xB6\xF4\x06\xB7\xED\xEE\x38\x6B\xFB\x5A\x89\x9F\xA5\xAE\x9F\x24\x11\x7C\x4B\x1F\xE6\x49\x28\x66\x51\xEC\xE6\x53\x81\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF')
dhg=2
dhpi=s2n('\xDB\x58\x40\xCD\x93\x72\x8B\x76\xD1\x71\xE0\xD7\x63\xBC\x78\x94\xF9\xAC\xA4\x1E\xD0\x2C\x07\xFB\x2B\x10\xEC\x6F\xF9\x43\x43\xBC\x65\x81\x36\x62\x79\x0A\x1B\x51\x88\x13\xD4\x97\x42\x35\x73\xFF\xC7\x70\xDA\xC8\xEF\x18\x34\x4D\x99\x53\x2E\x0A\x5D\x1E\xF4\x43\x04\x9C\xB0\x6B\xA8\x69\x9D\x49\x04\xF4\xD4\x70\xD1\xB9\x2E\x2B\x0D\x86\x21\x2D\x89\xFF\x8E\xDE\x90\x01\xD5\x69\x7F\x6C\xB4\x2E\x71\x5D\x0C\x49\x07\xBE\x6B\x62\x28\x0B\xEE\x8F\xDD\xAE\x60\x48\xCE\x47\x9A\xED\x9B\x0F\xF0\x3B\xAA\x54\x93\x5D\xC1\x28\xF7\x5D')
dhpr=s2n('\x7C\xFA\x40\x2B\x3F\xD6\x7B\xF1\xF4\xDE\x20\x4A\x6B\x8A\xF8\x44\x14\x4F\x1F\x8C\x27\x5F\x5A\x93\xD8\xA6\xCA\xDF\xB2\x95\xA4\xE8\x20\xE2\x5C\x3D\x18\x48\x76\xAF\xC5\x31\x04\x67\x4C\x73\xC3\xFF\x26\xA2\x9C\x09\xC9\xB5\x5F\xB4\xD8\x98\x49\xA2\x37\x62\xE3\x2A\xA0\xCF\x83\x88\x4A\x1C\x06\x97\x5A\x35\x5B\xF6\xAA\x98\x79\x0D\xEB\xC2\xBF\xFB\x83\x41\x15\x02\x79\xEB\xC1\x2C\xBF\xB9\xF6\x77\xB0\xE5\xFF\x34\x97\x82\x51\xCB\xF7\x8E\x45\x14\xCE\xB5\x3F\xAF\xB0\x14\x85\x43\x50\x8A\xB6\x45\x95\x15\x2A\xA3\x2A\xA0\xAD\x3A')
rnda=217227749115035578303115991742495457394555440946835514581165277149237157052227668403784536767326288414650333354135580192264021152700162919686294299135414279647180805138410303
rndb=162938785206550875564738389732121139210582420609551964823025935645144235158388990738283910163537245485378422827807450374238085561899166174523954514183122557647647478238328309
dh=pow(dhpi,rndb,dhp)
dh1=pow(dhpr,rnda,dhp)
assert dh==dh1
dh=n2s(dh)
Ni_b='\x97\x00\x3e\x96\xbc\x24\xfc\xf4\x33\x01\xd1\xc4\x3c\x8f\x39\xdb'
Nr_b='\x91\xf6\x7d\x69\x87\xaf\x88\x55\xe0\x0f\x7d\xc7\x7c\x1f\x7a\x54'
key='L2Lkey'
c='\x73\x3D\x05\xC9\x29\xE8\x90\x87\x18\x64\x2E\xEE\xBE\x68\xA3\xC7\x10\xC1\x2C\x09\xB2\x2A\x5C\xFB\x14\xED\xD9\x05\x71\xC3\xDB\x7B\x1B\x59\x8E\xF4\x78\xA2\x34\x4E\x44\x92\x50\x79\x20\xF9\x07\x02'
CKYI='\x9a\x4f\x20\xcd\xb1\x31\x48\xb8'
CKYR='\x31\x32\x33\x36\x35\x34\x33\x32'
#dh=137247906241040090919876955385584427953146893027590677633961074744220353577993931739850208608460762088573995334151351475802221588909889893766807776125874588605505199531437797262808324394122286799024347058396174077697126829526904781090123860153287092978076421343799399389218986715724110092376523175888317759494
skeyid = hmac.new(key, Ni_b+Nr_b).digest()
skeyid_d = hmac.new(skeyid, dh+CKYI + CKYR + '\x00').digest()
skeyid_a = hmac.new(skeyid, skeyid_d + dh + CKYI + CKYR + '\x01').digest()
skeyid_e = hmac.new(skeyid, skeyid_a + dh + CKYI + CKYR + '\x02').digest()
deskey=skeyid_e[:8]
iv=hashlib.md5(n2s(dhpi)+n2s(dhpr)).digest()[:8]
cipher = DES.new(deskey, DES.MODE_CBC, iv)
print cipher.decrypt(c)
n = 94738740796943840961823530695778701408987757287583492665919730017973847138345511139064596113422435977583856843887008168202003855906708039013487349390571801141407245039011598810542232029634564848797998534872251549660454277336502838185642937637576121533945369150901808833844341421315429263207612372324026271327
e = 65537
# layer 1 factored with ECC method
p = 9733382803370256893136109840971590971460094779242334919432347801491641617443615856221168611138933576118196795282443503609663168324106758595642231987245583
q = 9733382803370256893136109840971590971460094779242334919432347801491641617443615856221168611138933576118196795282443503609663168324106758595642231987246769
# valid p and q right!?
assert(n % p == 0)
assert(n % q == 0)
c = libnum.s2n(open('almost_almost_almost_almost_there.encrypted','rb').read())
phi = (p - 1) * (q - 1)
d = libnum.invmod(e, phi)
m = pow(c,d,n)
zippassword = libnum.n2s(m)
################### LAYER 2 ######################
print "[*] Solving layer 2: Common factors!"
# unzip layer2
unzip = subprocess.check_output(['unzip','-o','-P',zippassword,'almost_almost_almost_almost_there.zip'])
# get next modulus
l2n = int(subprocess.check_output(['openssl', 'rsa', '-noout', '-modulus', '-pubin', '-in', 'almost_almost_almost_there.pub']).split('=')[1],16)
# load ciphertext
l2c = libnum.s2n(open('almost_almost_almost_there.encrypted','rb').read())
# layer 2 modulus has common factor with layer 1
l2q = libnum.gcd(l2n, n)
l2p = l2n / l2q
f = Sock("54.197.195.247 4321", timeout=1000)
f.read_one()
f.send("1\n")
f.read_one()
f.send("100\n")
f.read_one()
f.send("2\n")
f.read_one()
f.send("0\n")
f.read_one()
f.send("3\n")
f.read_one()
f.send(p1)
n = int(f.read_until_re(r"generated (\d+),").group(1))
lowhash = n2s(n).rjust(16, "\x00").encode("hex")[7:]
print lowhash
ext1s, ext1sig = extend(p1, "a" * 32, app)
f.send("3\n")
f.read_until("round!")
f.send(ext1s)
n = int(f.read_until_re(r"generated (\d+),").group(1))
lowhash2 = n2s(n).rjust(16, "\x00").encode("hex")[7:]
print lowhash2
A, B, C, D = unpack(">4I", lowhash.rjust(32, "0").decode("hex"))
test_hash2 = lowhash2.rjust(32, "0")
A = dll.brute(A, B, C, D, test_hash2)
hash1 = pack(">4I", A, B, C, D).encode("hex")
def test_n2s(self):
s = "long string to test"
val = 2418187513319072758194084480823884981773628276
self.assertEqual(libnum.n2s(val), s)
self.assertRaises(TypeError, libnum.n2s, "qwe")
import libnum C1 = 0x94f145679ee247b023b09f917beea7e38707452c5f4dc443bba4d089a18ec42de6e32806cc967e09a28ea6fd2e683d5bb7258bce9e6f972d6a30d7e5acbfba0a85610261fb3e0aac33a9e833234a11895402bc828da3c74ea2979eb833cd644b8ab9e3b1e46515f47a49ee602c608812241e56b94bcf76cfbb13532d9f4ff8ba N1 = 0xa5d1c341e4837bf7f2317024f4436fb25a450ddabd7293a0897ebecc24e443efc47672a6ece7f9cac05661182f3abbb0272444ce650a819b477fd72bf01210d7e1fbb7eb526ce77372f1aa6c9ce570066deee1ea95ddd22533cbc68b3ba20ec737b002dfc6f33dcb19e6f9b312caa59c81bb80cda1facf16536cb3c184abd1d5 C2 = 0x5ad248df283350558ba4dc22e5ec8325364b3e0b530b143f59e40c9c2e505217c3b60a0fae366845383adb3efe37da1b9ae37851811c4006599d3c1c852edd4d66e4984d114f4ea89d8b2aef45cc531cfa1ab16c7a2e04d8884a071fed79a8d30af66edf1bbbf695ff8670b9fccf83860a06e017d67b1788b19b72d597d7d8d8 N2 = 0xaf4ed50f72b0b1eec2cde78275bcb8ff59deeeb5103ccbe5aaef18b4ddc5d353fc6dc990d8b94b3d0c1750030e48a61edd4e31122a670e5e942ae224ecd7b5af7c13b6b3ff8bcc41591cbf2d8223d32eeb46ba0d7e6d9ab52a728be56cd284842337db037e1a1da246ed1da0fd9bdb423bbe302e813f3c9b3f9414b25e28bda5 C3 = 0x8a9315ee3438a879f8af97f45df528de7a43cd9cf4b9516f5a9104e5f1c7c2cdbf754b1fa0702b3af7cecfd69a425f0676c8c1f750f32b736c6498cac207aa9d844c50e654ceaced2e0175e9cfcc2b9f975e3183437db73111a4a139d48cc6ce4c6fac4bf93b98787ed8a476a9eb4db4fd190c3d8bf4d5c4f66102c6dd36b73 N3 = 0x5ca9a30effc85f47f5889d74fd35e16705c5d1a767004fec7fdf429a205f01fd7ad876c0128ddc52caebaa0842a89996379ac286bc96ebbb71a0f8c3db212a18839f7877ebd76c3c7d8e86bf6ddb17c9c93a28defb8c58983e11304d483fd7caa19b4b261fc40a19380abae30f8d274481a432c8de488d0ea7b680ad6cf7776b cubed = libnum.modular.solve_crt([C1, C2, C3], [N1, N2, N3]) print libnum.n2s(libnum.common.nroot(cubed, 3))
import hashlib, base58, libnum, ecdsa
privkey = 94176137926187438630526725483965175646602324181311814940191841477114099191175
sign_key = ecdsa.SigningKey.from_string(libnum.n2s(privkey), curve=ecdsa.SECP256k1)
pubkey = ('\04' + sign_key.verifying_key.to_string())
s = hashlib.sha256(pubkey).digest()
r = '\x00'+hashlib.new('ripemd160', s).digest()
c = hashlib.sha256(hashlib.sha256(r).digest()).digest()[:4]
print base58.b58encode(r+c)
#!/usr/bin/python
import base64
import libnum
n1 = 123948613128507245097711825164030080528129311429181946930789480629270692835124562568997437300916285601268900901495788327838386854611883075845387070635813324417496512348003686061832004434518190158084956517800098929984855603216625922341285873495112316366384741709770903928077127611563285935366595098601100940173
n2 = 122890614849300155056519159433849880305439158904289542874766496514523043027349829509818565800562562195671251134947871996792136355514373160369135263766229423623131725044925870918859304353484491601318921285331340604341809979578202817714205469839224620893418109679223753141128229197377934231853172927071087589849
e = 65537
q = libnum.gcd(n1,n2) # calculate gcd to discover a prime factor in common
p = n1 / q
phi = (p-1) * (q - 1)
c = libnum.s2n(base64.b64decode(open('ciphertext.txt','r').read()))
d = libnum.invmod(e,phi)
m = pow(c,d,n1)
print "[+] Flag: " + libnum.n2s(m)
import libnum p = 9648423029010515676590551740010426534945737639235739800643989352039852507298491399561035009163427050370107570733633350911691280297777160200625281665378483 q = 11874843837980297032092405848653656852760910154543380907650040190704283358909208578251063047732443992230647903887510065547947313543299303261986053486569407 e = 65537 c = 83208298995174604174773590298203639360540024871256126892889661345742403314929861939100492666605647316646576486526217457006376842280869728581726746401583705899941768214138742259689334840735633553053887641847651173776251820293087212885670180367406807406765923638973161375817392737747832762751690104423869019034 n = p*q tot = (p-1)*(q-1) d = libnum.invmod(e, tot) m = pow(c, d, n) print libnum.n2s(m)
msg = 2
f = open('sigs2.txt', 'r')
for line in f:
sig = int(line)
if ver(sig) == 2: valid.append(sig)
else: faulty.append(sig)
print '[+] Found {0} valid and {1} faulty signatures!'.format(len(valid), len(faulty))
#d = test_exponent_faults()
#test_crt_faults()
#print libnum.n2s(pow(x, d, N))
print len('000001100001101000010001101110010111100000001011001011000101010111100100111011111011101010111010110010111111001001100111001010000111110100010011001100001001110000001011101100000100111110100011000000101100011110110010110100010111000110011101000111010011011100111001101110001110110011111010111011101101')
d_p = int('000001100001101000010001101110010111100000001011001011000101010111100100111011111011101010111010110010111111001001100111001010000111110100010011001100001001110000001011101100000100111110100011000000101100011110110010110100010111000110011101000111010011011100111001101110001110110011111010111011101101', 2)
print d_p
p =11508259255609528178782985672384489181881780969423759372962395789423779211087080016838545204916636221839732993706338791571211260830264085606598128514985547
q = N/p
d = libnum.modular.invmod(e, (p-1)*(q-1))
print libnum.n2s(pow(x, d, N))
from Crypto.Cipher import Blowfish import sys, libnum def pkcs7(s, b): if len(s) % b == 0: return s need = len(s) / b + 1 byte = need*b - len(s) return s + chr(byte)*byte key = 'tetraodontidae' print Blowfish.new(pkcs7(key, 8)).decrypt(libnum.n2s(0x1e95153b6c941098227a4b08d9d74cb9d7b9387f83c74097))
