openssl commands equivalent in python?

Question

I'm currently getting a private key with

openssl pkcs8 -in file.key -inform DER

And for some cer file

openssl x509 -text -inform DER -in file.cer

I can handle the extraction calling the commands on the terminal from python but I would prefer to do it with python libraries.

I looked for examples with pyopenssl but I didn't find something really similar to what I'm trying to achieve.

How can I achieve the same result using python libraries?

viraptor · Accepted Answer · 2015-07-26 05:47:44Z

4

Have a look at cryptography.io. There's DER certificate loading and private key loading supports PKCS#8 format.

answered Jul 26, 2015 at 5:47

viraptor

34.4k13 gold badges117 silver badges204 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

helado Over a year ago

Thanks, I'll check it out

helado · Accepted Answer · 2015-08-08 04:50:05Z

0

Since using python cryptography didn't work for me I looked for an alternative package.

I found using chilkat is exactly what I needed. It has pkcs8 support and it's really fast.

My code is as follows

def get_private_key(filepath, password):
    pkey = chilkat.CkPrivateKey()
    pkey.LoadPkcs8EncryptedFile(filepath, password)
    return pkey.getPkcs8Pem()


def get_certificate_and_serial(filepath):
    cert = chilkat.CkCert()
    cert.LoadFromFile(filepath)
    serial = unhexlify(cert.serialNumber())
    return cert.exportCertPem(), serial.decode('utf-8')

Chilkat can be found here

edited Aug 8, 2015 at 4:50

answered Aug 8, 2015 at 4:40

helado

8952 gold badges14 silver badges26 bronze badges

Collectives™ on Stack Overflow

openssl commands equivalent in python?

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related