Skill UI

An expert guide detailing the SuperScalar protocol and Bitcoin Lightning channel factories. It explains scalable onboarding mechanisms using shared UTXOs, advanced cryptographic structures like Decker-Wattenhofer trees, and MuSig2. This knowledge is vital for understanding how Bitcoin can scale significantly without requiring disruptive soft forks.

This comprehensive guide details the process of creating forensically sound, bit-for-bit disk images using industry-standard tools like `dd` and `dcfldd` on Linux systems. It covers essential steps including enabling write protection, documenting source metadata, performing the acquisition, and crucially, verifying the image integrity using cryptographic hashing (MD5/SHA-256). This methodology is vital for digital forensics, incident response, and legal proceedings to ensure evidence remains unaltered and admissible.

A comprehensive guide to simulating Man-in-the-Middle (MITM) attacks using industry-standard tools like Bettercap, Ettercap, and mitmproxy. This technique is strictly for authorized penetration testing environments to assess cryptographic controls, validate TLS certificate pinning, and test network defense mechanisms against ARP/DNS spoofing and sniffing.

This guide details methods for detecting and mitigating OAuth token theft and replay attacks in cloud environments, specifically targeting Microsoft Entra ID (Azure AD). It covers protection against access token theft, Primary Refresh Token (PRT) abuse, and pass-the-cookie attacks. Users can leverage Conditional Access and Token Protection features to cryptographically bind tokens to devices, significantly enhancing cloud identity security and preventing session hijacking.

This skill demonstrates how to exploit vulnerabilities in JWT implementations, specifically algorithm confusion. It targets APIs that fail to strictly enforce the signing algorithm, allowing attackers to downgrade signatures (e.g., RS256 to HS256) or bypass signature verification entirely (alg:none). Use this for authorized penetration testing of API security and cryptographic integrity.

This guide details the implementation of GCP Binary Authorization, a crucial deploy-time security control. It ensures that only trusted, verified container images are deployed on GKE or Cloud Run by requiring cryptographic attestations. Learn how to set up KMS-backed attestors, configure policies, and integrate the validation process into your CI/CD pipeline to enforce robust supply chain integrity.

Configure NextDNS as an encrypted DNS resolver (DoH/DoT) to enforce zero trust principles at the network layer. This skill guides users on deploying real-time threat intelligence filtering, blocking malicious domains, preventing cryptojacking, detecting DNS rebinding, and enforcing strict organizational DNS policies across endpoints, aligning with modern cybersecurity standards.

A comprehensive guide to hardening container registries using Harbor. Learn how to enforce strict image provenance and deployment security by integrating vulnerability scanning (Trivy), cryptographic image signing (Cosign/Notary), granular Role-Based Access Control (RBAC), immutable tag policies, and content trust. Essential for environments requiring high compliance and robust supply chain security.

A comprehensive guide for assessing the security of JSON Web Token (JWT) implementations. This toolkit details attacks against cryptographic weaknesses, including algorithm confusion (e.g., RS256 to HS256), 'none' attacks, brute-forcing HMAC secrets, and claim manipulation. Ideal for penetration testing and security audits of modern APIs and SSO systems.

A comprehensive guide for implementing hardware-level confidential computing using AWS Nitro Enclaves. This process involves creating secure enclave images (EIFs), performing cryptographic attestation validation against the Nitro PKI, and configuring AWS KMS policies. It ensures that sensitive data (like PII or PHI) remains isolated from the parent EC2 instance, guaranteeing security even if the host system is compromised.

Assesses organizational readiness for migrating cryptographic systems to post-quantum standards (PQC), aligning with NIST guidelines. The tool performs comprehensive cryptographic inventory scanning to identify quantum-vulnerable algorithms (RSA, ECDH, ECDSA) and evaluates the feasibility of implementing hybrid TLS configurations using standards like ML-KEM and ML-DSA. Essential for implementing crypto-agility across enterprise infrastructure.

This skill provides a comprehensive framework for validating backup reliability. It automates processes like cryptographic hash verification, running simulated restores to isolated environments, detecting silent data corruption (bit rot), and scanning for ransomware indicators. Use it before relying on backups during a major incident or ransomware attack to ensure data recoverability and compliance.