RSA密钥生成与读取
1.pycryptodome模块
公钥生成
from Crypto.PublicKey import RSA
p= 787228223375328491232514653709
q= 814212346998672554509751911073
n= 640970939378021470187479083920100737340912672709639557619757
d= 590103645243332826117029128695341159496883001869370080307201
e= 65537
rsa_components = (n, e)
keypair = RSA.construct(rsa_components)
with open('pubckey.pem', 'wb') as f :
f.write(keypair.exportKey())
私钥生成
from Crypto.PublicKey import RSA
p= 787228223375328491232514653709
q= 814212346998672554509751911073
n= 640970939378021470187479083920100737340912672709639557619757
d= 590103645243332826117029128695341159496883001869370080307201
e= 65537
rsa_components = (n,e,d,p,q)
keypair = RSA.construct(rsa_components)
with open('private1.pem', 'wb') as f :
f.write(keypair.exportKey())
公钥读取
from Crypto.PublicKey import RSA
with open("pubckey.pem","rb") as f:
key = RSA.import_key(f.read())
print('n = %d' % key.n)
print('e = %d' % key.e)
私钥读取
from Crypto.PublicKey import RSA
with open("private1.pem","rb") as f:
key = RSA.import_key(f.read())
print('n = %d' % key.n)
print('e = %d' % key.e)
本文详细介绍了RSA密钥的生成与读取，包括使用pycryptodome和rsa两个模块的方法。讲解了公钥和私钥的生成、读取过程，并提供了出题脚本，涉及到随机flag生成、基于N分解的题目及其解题策略，是CTF竞赛中关于RSA加密的重要参考资料。
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