Question

我使用以下命令生成了私钥和公钥：

openssl genrsa -out private_key.pem 512
openssl rsa -in private_key.pem -pubout -out public_key.pem

然后我尝试使用Python-RSA加载python脚本：

import os
import rsa

with open('private_key.pem') as privatefile:
    keydata = privatefile.read()
privkey = rsa.PrivateKey.load_pkcs1(keydata,'PEM')

with open('public_key.pem') as publicfile:
    pkeydata = publicfile.read()

pubkey = rsa.PublicKey.load_pkcs1(pkeydata)

random_text = os.urandom(8)

#Generate signature
signature = rsa.sign(random_text, privkey, 'MD5')
print signature

#Verify token
try:
    rsa.verify(random_text, signature, pubkey)
except:
    print "Verification failed"

我的python脚本在尝试加载公钥时失败：

ValueError: No PEM start marker "-----BEGIN RSA PUBLIC KEY-----" found

Answer 1

如果在Python3上，您还需要以二进制模式打开密钥，例如：

with open('private_key.pem', 'rb') as privatefile:

Answer 2

Python-RSA使用PEM RSAPublicKey格式，PEM RSAPublicKey格式使用页眉和页脚行： openssl NOTES

-----开始RSA公钥----- ----- END RSA PUBLIC KEY -----

以RSAPublicKey格式输出私钥的公共部分： openssl EXAMPLES

 openssl rsa -in key.pem -RSAPublicKey_out -out pubkey.pem

Answer 3

要使用python-rsa库加载OpenSSL生成的公共密钥文件，请尝试

with open('public_key.pub', mode='rb') as public_file:
    key_data = public_file.read()
    public_key = rsa.PublicKey.load_pkcs1_openssl_pem(key_data)

Answer 4

您可以通过ssh-keygen：

生成私钥

ssh-keygen -t rsa

并生成如下公钥：

ssh-keygen -e -m pem -f xxx > pubkey.pem

http://blog.oddbit.com/2011/05/08/converting-openssh-public-keys/

Answer 5

from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.backends import default_backend


def load_keys():
    with open("public.pem", "rb") as f:
        public = serialization.load_pem_public_key(
            f.read(), backend=default_backend()
        )
    with open("private.pem", "rb") as f:
        private = serialization.load_pem_private_key(
            f.read(), None, backend=default_backend()
        )
    return private, public

如何使用openssl生成的文件在Python-RSA中加载公共RSA密钥？

5 个答案: