如何解决导入rsa私钥并加密字符串
尝试导入使用openssl创建的2048位RSA私钥,并使用它来加密字符串。遵循此https://cryptobook.nakov.com/asymmetric-key-ciphers/rsa-encrypt-decrypt-examples
from Crypto.PublicKey import RSA
from Crypto.Cipher import PKCS1_OAEP
pr_key = RSA.import_key(open('my_priv_key.pem','r').read())
msg = "blah"
encryptor = PKCS1_OAEP.new(pr_key)
encrypted = encryptor.encrypt(msg)
print(encrypted)
错误:
» python encrypt.py
Traceback (most recent call last):
File "encrypt",line 10,in <module>
encrypted = encryptor.encrypt(msg)
File "/python/lib/python3.7/site-packages/Crypto/Cipher/PKCS1_OAEP.py",line 121,in encrypt
db = lHash + ps + b'\x01' + _copy_bytes(None,None,message)
TypeError: can't concat str to bytes
解决方法
这是因为crypto方法期望字节作为参数。使用msg = b'blah'
应该可以解决问题,并将加密调用更改为encrypted = encryptor.encrypt(msg.encode('utf-8'))
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