Python OpenSSL generating public and private key pair

Question

I am having problem finding a command that would generate a public and private key pair using OpenSSL. Could someone show me some example code of this in action.

Thank you

Asked By: DustBunny

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Source

Answer 1

Using the pyOpenSSL bindings:

OpenSSL.crypto.PKey().generate_key(type, bits)
Generate a public/private key pair of the type type (one of TYPE_RSA and TYPE_DSA) with the size bits.

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Answered By: Katriel

Answer 2

def makeCertificate(**kw):
    keypair = PKey()
    keypair.generate_key(TYPE_RSA, 1024)

    certificate = X509()
    certificate.gmtime_adj_notBefore(0)
    certificate.gmtime_adj_notAfter(60 * 60 * 24 * 365) # One year
    for xname in certificate.get_issuer(), certificate.get_subject():
        for (k, v) in kw.items():
            setattr(xname, k, nativeString(v))

    certificate.set_serial_number(counter())
    certificate.set_pubkey(keypair)
    certificate.sign(keypair, "md5")

    return keypair, certificate

Answered By: Aaditya khandelwal

Python OpenSSL generating public and private key pair

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