:key="Math.random()
时间: 2024-06-08 14:04:56 浏览: 15
:key="Math.random()"是一种在Vue.js中使用的技巧。在Vue.js中,每个组件都需要有一个唯一的key属性来帮助Vue.js识别每个组件的身份和状态。:key="Math.random()"这个写法是一种常见的生成唯一key的方法,它利用了Math.random()函数生成一个介于0和1之间的随机数作为key值。这样可以确保每次渲染组件时,key值都是不同的,从而避免出现渲染错误或性能问题。
相关问题
将下面代码修改成正确格式import random import math def is_prime(number): if number < 2: return False for i in range(2, int(number ** 0.5) + 1): if number % i == 0: return False return Truedef generate_key(length): while True: p = random.randint(2 ** (length//2 - 1), 2 ** (length//2)) if is_prime(p): break while True: q = random.randint(2 ** (length//2 - 1), 2 ** (length//2)) if is_prime(q) and q != p: break n = p * q phi_n = (p - 1) * (q - 1) while True: e = random.randint(2, phi_n - 1) if math.gcd(e, phi_n) == 1: break d = pow(e, -1, phi_n) public_key = (n, e) private_key = (n, d) return public_key, private_keydef encrypt(message, public_key): n, e = public_key m = int.from_bytes(message.encode(), 'big') c = pow(m, e, n) return c.to_bytes((c.bit_length() + 7) // 8, 'big') def decrypt(ciphertext, private_key): n, d = private_key c = int.from_bytes(ciphertext, 'big') m = pow(c, d, n) return m.to_bytes((m.bit_length() + 7) // 8, 'big') def main(): message = "Hello, this is a test message!" print("Original message:", message) public_key, private_key = generate_key(512) print("Public key:", public_key) print("Private key:", private_key) encrypted_message = encrypt(message, public_key) print("Encrypted message:", encrypted_message) decrypted_message = decrypt(encrypted_message, private_key) print("Decrypted message:", decrypted_message.decode()) if __name__ == "__main__": main()
import random
import math
def is_prime(number):
if number < 2:
return False
for i in range(2, int(number ** 0.5) + 1):
if number % i == 0:
return False
return True
def generate_key(length):
while True:
p = random.randint(2 ** (length//2 - 1), 2 ** (length//2))
if is_prime(p):
break
while True:
q = random.randint(2 ** (length//2 - 1), 2 ** (length//2))
if is_prime(q) and q != p:
break
n = p * q
phi_n = (p - 1) * (q - 1)
while True:
e = random.randint(2, phi_n - 1)
if math.gcd(e, phi_n) == 1:
break
d = pow(e, -1, phi_n)
public_key = (n, e)
private_key = (n, d)
return public_key, private_key
def encrypt(message, public_key):
n, e = public_key
m = int.from_bytes(message.encode(), 'big')
c = pow(m, e, n)
return c.to_bytes((c.bit_length() + 7) // 8, 'big')
def decrypt(ciphertext, private_key):
n, d = private_key
c = int.from_bytes(ciphertext, 'big')
m = pow(c, d, n)
return m.to_bytes((m.bit_length() + 7) // 8, 'big')
def main():
message = "Hello, this is a test message!"
print("Original message:", message)
public_key, private_key = generate_key(512)
print("Public key:", public_key)
print("Private key:", private_key)
encrypted_message = encrypt(message, public_key)
print("Encrypted message:", encrypted_message)
decrypted_message = decrypt(encrypted_message, private_key)
print("Decrypted message:", decrypted_message.decode())
if __name__ == "__main__":
main()
将代码修改成正确的格式 import random def is_prime(number): if number < 2: return False for i in range(2, int(number ** 0.5) + 1): if number % i == 0: return False return True def generate_key(length): # 生成p、q两个大质数 while True: p = random.randint(2 ** (length//2 - 1), 2 ** (length//2)) if is_prime(p): break while True: q = random.randint(2 ** (length//2 - 1), 2 ** (length//2)) if is_prime(q) and q != p: break # 计算n和φ(n) n = p * q phi_n = (p - 1) * (q - 1) # 选择一个与φ(n)互质的正整数e while True: e = random.randint(2, phi_n - 1) if math.gcd(e, phi_n) == 1: break # 计算e的逆元d d = pow(e, -1, phi_n) # 返回公钥和私钥 public_key = (n, e) private_key = (n, d) return public_key, private_key def encrypt(message, public_key): n, e = public_key # 将消息转换为整数 m = int.from_bytes(message.encode(), 'big') # 加密并返回密文 c = pow(m, e, n) return c.to_bytes((c.bit_length() + 7) // 8, 'big') def decrypt(ciphertext, private_key): n, d = private_key # 解密并返回明文 c = int.from_bytes(ciphertext, 'big') m = pow(c, d, n) return m.to_bytes((m.bit_length() + 7) // 8, 'big')
代码已经被格式化了,您可以直接复制使用:
```python
import random
import math
def is_prime(number):
if number < 2:
return False
for i in range(2, int(number ** 0.5) + 1):
if number % i == 0:
return False
return True
def generate_key(length):
# 生成p、q两个大质数
while True:
p = random.randint(2 ** (length//2 - 1), 2 ** (length//2))
if is_prime(p):
break
while True:
q = random.randint(2 ** (length//2 - 1), 2 ** (length//2))
if is_prime(q) and q != p:
break
# 计算n和φ(n)
n = p * q
phi_n = (p - 1) * (q - 1)
# 选择一个与φ(n)互质的正整数e
while True:
e = random.randint(2, phi_n - 1)
if math.gcd(e, phi_n) == 1:
break
# 计算e的逆元d
d = pow(e, -1, phi_n)
# 返回公钥和私钥
public_key = (n, e)
private_key = (n, d)
return public_key, private_key
def encrypt(message, public_key):
n, e = public_key
# 将消息转换为整数
m = int.from_bytes(message.encode(), 'big')
# 加密并返回密文
c = pow(m, e, n)
return c.to_bytes((c.bit_length() + 7) // 8, 'big')
def decrypt(ciphertext, private_key):
n, d = private_key
# 解密并返回明文
c = int.from_bytes(ciphertext, 'big')
m = pow(c, d, n)
return m.to_bytes((m.bit_length() + 7) // 8, 'big')
```
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