Python3 Cryptodome - 如何解密 pem？

Question

我正在尝试使用 cryptodome 在 python 中解密我的私钥。 raw_cipher_data下面是我加密私钥的密码。但是我收到错误消息 "ValueError: PEM is encrypted, but no passphrase available"

我的导入

from Cryptodome.Signature import PKCS1_v1_5
from Cryptodome.Hash import SHA
from Cryptodome.PublicKey import RSA
from base64 import b64decode

代码

rsa_key = RSA.importKey(open('pem file location', "rb").read())
verifier = PKCS1_v1_5.new(rsa_key)
raw_cipher_data = b64decode(<your cipher data>)
phn = rsa_key.decrypt(raw_cipher_data)

我的错误消息

  File ".\app.py", line 24, in <module>
    rsa_key = RSA.importKey(f.read(), passphrase="CNt3wiSY3Sjn0fEh2fsq")
  File "C:\Users\xx\AppData\Local\Programs\Python\Python37-32\lib\site-packages\Cryptodome\PublicKey\RSA.py", line 733, in import_key
    (der, marker, enc_flag) = PEM.decode(tostr(extern_key), passphrase)
  File "C:\Users\xx\AppData\Local\Programs\Python\Python37-32\lib\site-packages\Cryptodome\IO\PEM.py", line 163, in decode
    data = unpad(objdec.decrypt(data), objdec.block_size)
  File "C:\Users\xx\AppData\Local\Programs\Python\Python37-32\lib\site-packages\Cryptodome\Util\Padding.py", line 90, in unpad
    raise ValueError("Padding is incorrect.")
ValueError: Padding is incorrect.

Answer 1

我认为您的 RSA 密钥已加密。根据文档，您应该提供这样的密码 rsa_key = RSA.importKey(open('pem file location', "rb").read(), passphrase="yourpasswordhere")

Answer 2

这有助于解密 pem。

Crypto.IO.PEM.decode(pem_data, passphrase="yourpasswordhere")

Python3 Cryptodome - 如何解密 pem？

Python3 Cryptodome - how to decrypt pem?

python

encryption

rsa

python-3.x

pycryptodome

我的导入

代码

我的错误消息