python3.6此库安装方式,需要pip3 install pycryptodome。
如有site-packages中存在crypto、pycrypto,在pip之前,需要pip3 uninstall crypto、pip3 uninstall pycrypto,否则无法安装成功。
C:\WINDOWS\system32>pip3 install pycryptodome
Collecting pycryptodome
Downloading https://files.pythonhosted.org/packages/0f/5d/a429a53eacae3e13143248c3868c76985bcd0d75858bd4c25b574e51bd4d/pycryptodome-3.6.3-cp36-cp36m-win_amd64.whl (7.9MB)
100% |████████████████████████████████| 7.9MB 111kB/s
Installing collected packages: pycryptodome
Successfully installed pycryptodome-3.6.3
AES:
import Crypto.Cipher.AES
import Crypto.Random
import base64
import binascii
def auto_fill(x):
if len(x) <= 32:
while len(x) not in [16, 24, 32]:
x += " "
return x.encode()
else:
raise "密钥长度不能大于32位!"
key = "asd"
content = "abcdefg1234567"
x = Crypto.Cipher.AES.new(auto_fill(key), Crypto.Cipher.AES.MODE_ECB)
a = base64.encodebytes(x.encrypt(auto_fill(content)))
b = x.decrypt(base64.decodebytes(a))
print(a)
print(b)
a = binascii.b2a_base64(x.encrypt(auto_fill(content)))
b = x.decrypt(binascii.a2b_base64(a))
print(a)
print(b)
key = "dsa"
iv = Crypto.Random.new().read(16) # 向量,必须为16字节
content = "1234567abcdefg"
y = Crypto.Cipher.AES.new(auto_fill(key), Crypto.Cipher.AES.MODE_CBC, iv)
c = binascii.b2a_base64(y.encrypt(auto_fill(content)))
z = Crypto.Cipher.AES.new(auto_fill(key), Crypto.Cipher.AES.MODE_CBC, iv)
d = z.decrypt(binascii.a2b_base64(c))
print(c)
print(d)
运行结果:
b'jr/EIUp32kLHc3ypZZ1cyg==\n'
b'abcdefg1234567 '
b'jr/EIUp32kLHc3ypZZ1cyg==\n'
b'abcdefg1234567 '
b'j+Ul9KQd0HnuiHW3z9tD7A==\n'
b'1234567abcdefg '
DES3:
import Crypto.Cipher.DES3
import base64
import binascii
def auto_fill(x):
if len(x) > 24:
raise "密钥长度不能大于等于24位!"
else:
while len(x) < 16:
x += " "
return x.encode()
key = "asd"
content = "abcdefg1234567"
x = Crypto.Cipher.DES3.new(auto_fill(key), Crypto.Cipher.DES3.MODE_ECB)
a = base64.encodebytes(x.encrypt(auto_fill(content)))
print(a)
b = x.decrypt(base64.decodebytes(a))
print(b)
a = binascii.b2a_base64(x.encrypt(auto_fill(content)))
b = x.decrypt(binascii.a2b_base64(a))
print(a)
print(b)
运行结果:
b'/ee3NFKeNqEk/qMNd1mjog==\n'
b'abcdefg1234567 '
b'/ee3NFKeNqEk/qMNd1mjog==\n'
b'abcdefg1234567 '