Loading...
BastionZero OpenPubkey is a commercial multi-factor authentication and single sign-on tool by BastionZero. Microsoft Entra ID is a commercial multi-factor authentication and single sign-on tool by Microsoft. Compare features, ratings, integrations, and community reviews side by side to find the best multi-factor authentication and single sign-on fit for your security stack.
Based on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Startups and mid-market teams tired of managing SSH keys across infrastructure will find real value in BastionZero OpenPubkey; it binds public keys directly to SSO identities, eliminating key rotation overhead and the audit nightmare of shared credentials. The hybrid deployment model and OpenID Connect integration mean you can bolt this onto existing identity stacks without ripping out authentication. Skip this if your environment demands air-gapped SSH access or you need identity management to also handle physical access controls; OpenPubkey is deliberately focused on logical asset authentication, not the broader PR.AA function.
Enterprise and mid-market teams already committed to Microsoft 365 should choose Microsoft Entra ID because it eliminates the identity tax of managing a separate platform, with conditional access policies that actually enforce what your Microsoft-native apps require. NIST CSF 2.0 coverage on PR.AA (Identity Management, Authentication, and Access Control) is solid, and the integration with Security Copilot means threat investigation workflows stay within your existing Microsoft ecosystem rather than forcing context-switching. Skip this if you need deep API governance or fine-grained entitlements for non-Microsoft SaaS applications; Entra ID treats those as secondary use cases, and you'll end up stitching in third-party tools anyway.
Open source authentication binding public keys to identities via SSO/OpenID
Cloud-based identity and access management solution for enterprises
Access NIST CSF 2.0 data from thousands of security products via MCP to assess your stack coverage.
Access via MCPNo reviews yet
No reviews yet
Explore more tools in this category or create a security stack with your selections.
Common questions about comparing BastionZero OpenPubkey vs Microsoft Entra ID for your multi-factor authentication and single sign-on needs.
BastionZero OpenPubkey: Open source authentication binding public keys to identities via SSO/OpenID. built by BastionZero. headquartered in United States. Core capabilities include Public key binding to user and workload identities, SSO-based authentication, OpenID Connect integration..
Microsoft Entra ID: Cloud-based identity and access management solution for enterprises. built by Microsoft. headquartered in United States. Core capabilities include Multi-factor authentication (MFA), Single sign-on (SSO), Passwordless authentication..
Both serve the Multi-Factor Authentication and Single Sign-On market but differ in approach, feature depth, and target audience.
Get strategic cybersecurity insights in your inbox