openSSL alternative, using google colab software

 

https://community.sap.com/t5/technology-blog-posts-by-sap/generate-pfx-file-to-connect-sap-document-and-reporting-compliance-cloud/ba-p/13580099 as similar to blog openssl command ; instead of this if i place *.pem *.key file in content folder, password in varaible of pyton; can colab pyton code generate *.pfx file; if yes , provide code;

Yes. You don't need to execute the OpenSSL command manually. If you already have:

• certificate.pem (public certificate)
• private.key (private key)
• Password stored in a Python variable

then Python can generate a .pfx (PKCS#12) file directly.

The easiest approach is to use the cryptography library, which works in Google Colab.

Step 1: Install library

!pip install cryptography

Step 2: Place files

Upload these files to your Colab working directory (or mount Google Drive).

certificate.pem
private.key

Step 3: Python code

from cryptography import x509
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives.serialization import pkcs12

# Input files
CERT_FILE = "certificate.pem"
KEY_FILE = "private.key"

# Password for PFX
PFX_PASSWORD = "MyStrongPassword123"

# Output file
OUTPUT_PFX = "certificate.pfx"

# --------------------------
# Read Certificate
# --------------------------
with open(CERT_FILE, "rb") as f:
    cert = x509.load_pem_x509_certificate(f.read())

# --------------------------
# Read Private Key
# --------------------------
with open(KEY_FILE, "rb") as f:
    private_key = serialization.load_pem_private_key(
        f.read(),
        password=None      # Change if key is encrypted
    )

# --------------------------
# Generate PFX
# --------------------------
pfx_data = pkcs12.serialize_key_and_certificates(
    name=b"SAP Certificate",
    key=private_key,
    cert=cert,
    cas=None,
    encryption_algorithm=serialization.BestAvailableEncryption(
        PFX_PASSWORD.encode()
    )
)

with open(OUTPUT_PFX, "wb") as f:
    f.write(pfx_data)

print("PFX file generated successfully:", OUTPUT_PFX)

---

If your private key is encrypted

Instead of

password=None

use

KEY_PASSWORD = "PrivateKeyPassword"

private_key = serialization.load_pem_private_key(
    f.read(),
    password=KEY_PASSWORD.encode()
)

---

Multiple Certificates (Certificate Chain)

If you also have intermediate/root certificates:

certificate.pem
intermediate.pem
root.pem
private.key

use:

from cryptography import x509

with open("certificate.pem","rb") as f:
    cert = x509.load_pem_x509_certificate(f.read())

with open("intermediate.pem","rb") as f:
    inter = x509.load_pem_x509_certificate(f.read())

with open("root.pem","rb") as f:
    root = x509.load_pem_x509_certificate(f.read())

additional = [inter, root]

pfx = pkcs12.serialize_key_and_certificates(
    name=b"SAP",
    key=private_key,
    cert=cert,
    cas=additional,
    encryption_algorithm=serialization.BestAvailableEncryption(
        PFX_PASSWORD.encode()
    )
)

---

Equivalent OpenSSL command

The above Python code performs the equivalent of:

openssl pkcs12 -export \
-in certificate.pem \
-inkey private.key \
-out certificate.pfx \
-password pass:MyStrongPassword123

---

Suitable for your SAP DRC automation

If you're already using Google Colab to automate the SAP Document and Reporting Compliance certificate process, you can:

1. Upload certificate.pem and private.key.
2. Store the PFX password in a Python variable or another secure mechanism.
3. Generate the .pfx file entirely in Python.
4. Download or upload the generated .pfx to your target location.

This avoids any dependency on OpenSSL being installed and is well suited for an end-to-end Colab workflow.