在 Python 中使用 RSA
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Using RSA in Python
提问by Tara Singh
I am using RSA to encrypt/decrypt my session keys in Python. I am using Pycrypto library. After generating the keypair, I want to extract the private key and public key from that generated key and store them in different files. How can I do this? I can see the has Private method which can tell that the generated keypair has private component but not able to find how to extract both the keys from this generated keypair. Any Suggestion would be of great help.
我正在使用 RSA 在 Python 中加密/解密我的会话密钥。我正在使用 Pycrypto 库。生成密钥对后，我想从生成的密钥中提取私钥和公钥，并将它们存储在不同的文件中。我怎样才能做到这一点？我可以看到 has Private 方法，该方法可以判断生成的密钥对具有私有组件，但无法找到如何从生成的密钥对中提取两个密钥。任何建议都会有很大帮助。
采纳答案by Daniel Kluev
If you want to get according parts from they key, there is keyattribute for that:
如果您想从它们的键中获取相应的部分，则有一个key属性：
>>> from Crypto.PublicKey import RSA
>>> RSAkey = RSA.generate(1024)
>>> getattr(RSAkey.key, 'n')
13773...L
>>> getattr(RSAkey.key, 'p')
11731...L
>>> getattr(RSAkey.key, 'q')
11740...L
Available components are 'n', 'e', 'd', 'p', 'q', 'u'
可用组件有“n”、“e”、“d”、“p”、“q”、“u”
If you just want to save it in PEM, you should use exportKey()method (available since 2.2)
如果您只想将其保存在 PEM 中，则应使用exportKey()方法（自 2.2 起可用）
>>> private = RSA.generate(1024)
>>> public = private.publickey()
>>> private.exportKey()
'-----BEGIN RSA PRIVATE KEY-----\nMIICXgIBAAKBgQDo1M0P3nryaF8ZITv8vCFVnjUJ1mnIsrqXZRTzjin69xepr3cz\nKicG3EYSUqMODQAsvMj0tGMo+ElGOVOkPFLVVBHd8izgA/E1RqUzbUDMj4WnhlhA\nQq7tNaViOXNaZ7krJZHabZKxfYvLAQtm4tr+m5NtXPBaWvjwhd5M9xvktwIDAQAB\nAoGBANVsS1Rikbymo5V7e2teYAgFb4THAEyyWIvyYlQnWp/r48rtRoyl9QQ64hhl\nm4WDsUdQ/bwhpkul3DT804jWqu2V71p68rQP7h5D6ldCBUr5nQc9o/uEyy4YCgxD\n/ZxNiY5Bb/lMP9nhb2NbG4184mhUMHu+06wWX6RrXQtMtjYhAkEA8DioToMZIy3s\nhPohri3CAgByV2Jxf7JPqVZ93JjlSlBz+aybSv1mOJUPRFpkMk2xiPmHtEn16hYr\nesVK11tcjwJBAPgf4QYAw9dV+DuVqdwz+kmTjnlkr0Q7fjaGfl60DWmuLWmxiRhe\nMYQ2+8iyPDmxcPFTGSpGqyvyJDjQ/wOlWVkCQQCRIuotZW/OnXSFc0reHa9V3kc3\nHLdOW8FdonAw0//Uwn8PnoXE7QzRqt2qgqJ+8goNpBWli/oUEIj8iC8LpptpAkBV\nFFlMfaaph8j+ZWtBHnGMGRSZe3S9qMi2WZerUYHn4tmfjEi+Gk5QT6o2Pyd3gOiB\nV0Uhwemfv/+7m65VybTBAkEA5H59kG+B9HHD5hJtksAtMh8dxk/MI8G0csduU0vu\n7K5ejL522XsHurVrWdqnk6KvjlRXqB4FsMWLE6RBgBNV0A==\n-----END RSA PRIVATE KEY-----'
>>> public.exportKey()
'-----BEGIN PUBLIC KEY-----\nMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDo1M0P3nryaF8ZITv8vCFVnjUJ\n1mnIsrqXZRTzjin69xepr3czKicG3EYSUqMODQAsvMj0tGMo+ElGOVOkPFLVVBHd\n8izgA/E1RqUzbUDMj4WnhlhAQq7tNaViOXNaZ7krJZHabZKxfYvLAQtm4tr+m5Nt\nXPBaWvjwhd5M9xvktwIDAQAB\n-----END PUBLIC KEY-----'
