New to Claude Skills? Learn how to install them →

Get Claude Skills
mukul975 on GitHub

Implementing SAML SSO with Okta

Free

Streamline SAML 2.0 SSO configurations with Okta.

by mukul97527.6k stars on mukul975/anthropic-cybersecurity-skills
2 views
Updated Aug 8, 2026
Get this skill

Free · Opens the source repo

What Implementing SAML SSO with Okta does

This skill provides a comprehensive guide for implementing SAML 2.0 Single Sign-On (SSO) using Okta as the Identity Provider (IdP). It details the necessary steps for configuring both Service Provider (SP)-initiated and IdP-initiated authentication flows, making it suitable for developers and security professionals involved in identity and access management. The skill emphasizes security best practices, including SHA-256 signature enforcement and assertion encryption, which are crucial for maintaining secure authentication processes.

Users will find detailed workflows that cover the creation and configuration of SAML applications in Okta, including essential elements like attribute mapping and certificate management. The skill also addresses common pitfalls and security controls aligned with compliance requirements, ensuring that users can implement robust security measures in their SSO deployments. This is particularly valuable for organizations looking to enhance their security architecture or conduct thorough security assessments.

The skill is designed for those with a foundational understanding of identity access management and is best utilized in test or lab environments. It is especially beneficial when establishing security controls or improving existing SSO configurations. By following the outlined workflows, users can effectively manage SAML assertions, enforce security measures, and validate SSO functionality using SAML tracer tools.

Overall, this skill is an essential resource for anyone tasked with configuring or maintaining SAML SSO integrations with Okta, providing both practical guidance and security insights to ensure a successful implementation.

When to use it

Use this skill when deploying SAML SSO with Okta, especially during initial configurations or security assessments.

When not to use it

This skill may not be suitable for environments without Okta or for those unfamiliar with SAML concepts and identity management.

What you can build with it

Configuring Okta for a New Application

Use this skill to set up SAML SSO for a new application, ensuring proper attribute mapping and security controls.

Conducting a Security Assessment

Leverage this skill to evaluate existing SAML SSO implementations and identify areas for security improvement.

Testing SSO Flows

Utilize the testing workflows provided to validate both SP-initiated and IdP-initiated SSO flows in a controlled environment.

How to install Implementing SAML SSO with Okta

View source

1. Install with the skills CLI

npx skills add mukul975/anthropic-cybersecurity-skills/implementing-saml-sso-with-okta --agent claude-code

2. Or install it manually

Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.

Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs

Inside SKILL.md

Written by mukul975

Implementing SAML SSO with Okta

Overview

Implement SAML 2.0 Single Sign-On (SSO) using Okta as the Identity Provider (IdP). This skill covers end-to-end configuration of SAML authentication flows, attribute mapping, certificate management, and security hardening for enterprise SSO deployments.

When to Use

  • When deploying or configuring implementing saml sso with okta capabilities in your environment
  • When establishing security controls aligned to compliance requirements
  • When building or improving security architecture for this domain
  • When conducting security assessments that require this implementation

Prerequisites

  • Familiarity with identity access management concepts and tools
  • Access to a test or lab environment for safe execution
  • Python 3.8+ with required dependencies installed
  • Appropriate authorization for any testing activities

Objectives

  • Configure Okta as a SAML 2.0 Identity Provider
  • Implement SP-initiated and IdP-initiated SSO flows
  • Map SAML attributes and configure assertion encryption
  • Enforce SHA-256 signatures and secure certificate rotation
  • Test SSO flows with SAML tracer tools
  • Implement Single Logout (SLO) handling

Key Concepts

SAML 2.0 Authentication Flow

  1. SP-Initiated Flow: User accesses Service Provider -> SP generates AuthnRequest -> Redirect to Okta IdP -> User authenticates -> Okta sends SAML Response -> SP validates assertion -> Access granted
  2. IdP-Initiated Flow: User authenticates at Okta -> Selects application -> Okta sends unsolicited SAML Response -> SP validates -> Access granted

Critical Security Requirements

  • SHA-256 Signatures: All SAML assertions must use SHA-256 (not SHA-1) for digital signatures
  • Assertion Encryption: Encrypt SAML assertions using AES-256 to protect attribute values in transit
  • Audience Restriction: Configure audience URI to prevent assertion replay across different SPs
  • NotBefore/NotOnOrAfter: Enforce time validity windows to prevent stale assertion usage
  • InResponseTo Validation: Verify assertion corresponds to the original AuthnRequest

Okta Application Configuration

  • Single Sign-On URL: The ACS (Assertion Consumer Service) endpoint on the SP
  • Audience URI (SP Entity ID): Unique identifier for the SP
  • Name ID Format: EmailAddress, Persistent, or Transient
  • Attribute Statements: Map Okta user profile attributes to SAML assertion attributes
  • Group Attribute Statements: Include group membership for RBAC

Workflow

Step 1: Create SAML Application in Okta

  1. Navigate to Applications > Create App Integration
  2. Select SAML 2.0 as the sign-on method
  3. Configure General Settings (App Name, Logo)
  4. Set Single Sign-On URL (ACS URL)
  5. Set Audience URI (SP Entity ID)
  6. Configure Name ID Format and Application Username

Step 2: Configure Attribute Mapping

  • Map user.email to email attribute
  • Map user.firstName and user.lastName to name attributes
  • Add group attribute statements for role-based access
  • Configure attribute value formats (Basic, URI Reference, Unspecified)

Step 3: Download and Install IdP Metadata

  • Download Okta IdP metadata XML
  • Extract IdP SSO URL, IdP Entity ID, and X.509 certificate
  • Install certificate on SP side for signature validation
  • Configure SP metadata with ACS URL and Entity ID

Step 4: Implement SP-Side SAML Processing

  • Parse and validate SAML Response XML
  • Verify digital signature using IdP certificate
  • Check audience restriction, time conditions, and InResponseTo
  • Extract authenticated user identity and attributes
  • Create application session based on assertion data

Step 5: Security Hardening

  • Enforce SHA-256 for all signature operations
  • Enable assertion encryption with AES-256-CBC
  • Configure session timeout and re-authentication policies
  • Implement SAML artifact binding for sensitive deployments
  • Set up certificate rotation procedure before expiry

Step 6: Testing and Validation

  • Use SAML Tracer browser extension for debugging
  • Validate SP-initiated and IdP-initiated flows
  • Test with multiple user accounts and group memberships
  • Verify SLO functionality
  • Test certificate rotation without downtime

Security Controls

ControlNIST 800-53Description
AuthenticationIA-2Multi-factor authentication through Okta
Session ManagementSC-23SAML session lifetime controls
Audit LoggingAU-3Log all SSO authentication events
Certificate ManagementSC-17PKI certificate lifecycle management
Access EnforcementAC-3SAML attribute-based access control

Common Pitfalls

  • Using SHA-1 instead of SHA-256 for SAML signatures
  • Not validating InResponseTo in SAML responses (replay attacks)
  • Clock skew between IdP and SP causing assertion rejection
  • Failing to restrict audience URI allowing assertion forwarding
  • Not implementing certificate rotation before expiry causes outage

Verification

  • SAML SSO login completes successfully via SP-initiated flow
  • IdP-initiated flow correctly authenticates users
  • SAML assertions use SHA-256 signatures
  • Attribute mapping correctly populates user profile
  • Session timeout forces re-authentication
  • SLO properly terminates sessions on both IdP and SP
  • Certificate rotation tested without service interruption

Frequently asked questions about Implementing SAML SSO with Okta

Similar skills

GitHub Actions Hardening

Enhance the security of your GitHub Actions workflows.

Sensitive Logging Audit

Audit and fix sensitive data exposure in Python logging.

Android App Static Analysis

Automate security assessments of Android apps with MobSF.

Integrating DAST with OWASP ZAP

Seamlessly integrate dynamic security testing into CI/CD pipelines.

Implementing Runtime Security with Tetragon

Enhance Kubernetes security with eBPF-based observability.

Implementing Mobile Application Management

Secure enterprise data on mobile devices with app-level controls.