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Auth & security at scale

OAuth2, JWT, IAM patterns, secrets rotation, and least-privilege service auth.

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Auth & security at scale medium

How to Mock Certificate Pinning with SPKI Hash in Python

Shows how to compute and compare a certificate's SubjectPublicKeyInfo SHA-256 hash for pinning validation in Python.

certificate ssl pinning
Python 
import hashlib
import base64
import ssl
import socket

class MockCertificatePinner:
    """Demonstrates SPKI hash pinning for certificate validation."""
    
    def __init__(self, pinned_spki_hashes):
        self.pinned_hashes = set(pinned_spki_hashes)
    
    def get_spki_hash(self, cert_pem):
        """Compute t…
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