Vault vs Vault, Azure Key Vault in Technology - What is The Difference?

Last Updated Feb 14, 2025

Azure Key Vault securely stores and manages cryptographic keys, secrets, and certificates essential for your cloud applications and services. It enables centralized key management, reducing the risk of security breaches and simplifying compliance with regulatory standards. Discover how Azure Key Vault enhances your security posture and streamlines access control by reading the rest of this article.

Table of Comparison

Feature Vault Azure Key Vault
Provider HashiCorp Microsoft Azure
Type Open-source Secrets Management Cloud-based Secrets Management
Deployment Self-hosted or Cloud Fully Managed Cloud Service
Secret Storage Dynamic & Static Secrets Static Secrets & Keys
Access Control Policy Driven Access Control (ACL) Azure RBAC and Access Policies
Integration Extensive with Kubernetes, Cloud Providers Native Azure service integration
Encryption Encryption as a Service, Transit Encryption Hardware Security Modules (HSM) backed encryption
Audit Logging Comprehensive Audit Logs Integrated with Azure Monitor
Pricing Model Open-source Free / Enterprise Paid Pay-as-you-go
Use Cases Dynamic secrets, DevOps automation, Multi-cloud Azure workloads, Simplified secrets management

Introduction to Vault and Azure Key Vault

Vault by HashiCorp is an open-source tool designed for securely storing and accessing secrets such as API keys, passwords, and certificates, offering robust encryption, dynamic secrets, and detailed access control policies. Azure Key Vault is a cloud-managed service from Microsoft that provides secure secret storage, key management, and certificate handling tightly integrated with Azure services and identity management through Azure Active Directory. Both solutions emphasize secure secret management but differ in deployment flexibility, with Vault supporting multi-cloud and on-premises environments, while Azure Key Vault is optimized for seamless integration within the Azure ecosystem.

Overview of Vault

Vault by HashiCorp is a secrets management tool designed for securely storing and tightly controlling access to tokens, passwords, certificates, and encryption keys. Azure Key Vault is Microsoft's cloud-based security service that safeguards cryptographic keys and secrets used by cloud applications and services. Vault supports multi-cloud and on-premises environments with dynamic secrets, while Azure Key Vault integrates deeply with Azure services for streamlined key management in Azure-centric infrastructures.

Overview of Azure Key Vault

Azure Key Vault is a cloud-based service designed to safeguard cryptographic keys, secrets, and certificates with high-level security and scalability. It integrates seamlessly with Azure services, enabling centralized key management, policy enforcement, and hardware security module (HSM)-backed protections. With comprehensive access controls, audit logs, and automated key rotation, Azure Key Vault ensures secure and compliant handling of sensitive data in cloud environments.

Core Features Comparison

Vault by HashiCorp excels in dynamic secrets, data encryption, and identity-based access with a flexible plugin architecture, supporting multi-cloud and hybrid environments. Azure Key Vault offers seamless integration with Azure services, centralized key management, and hardware security module (HSM)-backed key protection optimized for Microsoft cloud workloads. Both solutions provide robust secret storage, access control policies, and audit logging, but Vault emphasizes extensibility and complex secret workflows, while Azure Key Vault prioritizes native Azure ecosystem integration and simplified key lifecycle management.

Security and Compliance

Vault by HashiCorp provides robust security through dynamic secrets, encryption as a service, and detailed access control policies, designed for multi-cloud and hybrid environments. Azure Key Vault integrates seamlessly with Azure Active Directory, offering strong compliance certifications like ISO 27001, HIPAA, and FedRAMP while enabling secure key management and hardware security module (HSM) support. Both platforms ensure secure key storage and secret management, but Azure Key Vault is often preferred in Microsoft-centric ecosystems for native compliance and integration capabilities.

Supported Integrations and Ecosystem

Vault by HashiCorp supports extensive integrations with cloud providers like AWS, Azure, and Google Cloud, alongside Kubernetes, VMware, and various CI/CD tools such as Jenkins and GitLab. Azure Key Vault is deeply integrated within the Azure ecosystem, providing seamless support for Azure services like Azure Functions, Azure Kubernetes Service (AKS), and Azure DevOps pipelines. Both platforms enable secure secret management, but Vault offers broader multi-cloud and third-party tool compatibility, whereas Azure Key Vault excels in Azure-native service integration.

Deployment and Management

Azure Key Vault offers seamless integration with Azure services, enabling easy deployment through the Azure portal, CLI, and ARM templates, making it ideal for organizations heavily invested in the Microsoft ecosystem. Vault by HashiCorp supports multi-cloud and on-premises environments with flexible deployment options including Kubernetes, VMs, and containerized environments, providing robust secret management and encryption as a service across diverse infrastructures. Management of Azure Key Vault benefits from centralized Azure policies and RBAC, while Vault provides granular access control via namespaces and policies, supporting customized operational workflows and automation through its API and CLI.

Cost and Licensing Structure

Azure Key Vault offers a pay-as-you-go pricing model based on the number of operations, key types, and storage, making it cost-effective for integrated Azure environments with predictable usage patterns. HashiCorp Vault uses a freemium model with an open-source core and premium enterprise features requiring a subscription license, which can increase costs depending on deployment scale and feature needs. Organizations should evaluate Azure Key Vault for seamless cloud integration and lower entry costs, while Vault provides flexibility and advanced features at potentially higher licensing costs for large or complex infrastructures.

Use Cases and Best Scenarios

Vault excels in dynamic secret management, enabling secure storage and automated rotation of credentials in DevOps workflows and distributed systems. Azure Key Vault specializes in seamless integration with Azure services, providing robust encryption key management, certificate issuance, and centralized secret storage within cloud-native applications. Use Vault for multi-cloud or hybrid environments requiring extensive customization; prefer Azure Key Vault for straightforward Azure ecosystem security and compliance needs.

Choosing Between Vault and Azure Key Vault

Choosing between Vault and Azure Key Vault depends on your cloud environment, security requirements, and integration needs. Vault offers extensive secrets management and encryption capabilities with open-source flexibility, ideal for multi-cloud and hybrid deployments. Azure Key Vault provides seamless integration with Azure services, simplified management, and robust compliance features tailored for organizations heavily invested in the Microsoft Azure ecosystem.

Vault, Azure Key Vault Infographic

Vault vs Vault, Azure Key Vault in Technology - What is The Difference?


About the author. JK Torgesen is a seasoned author renowned for distilling complex and trending concepts into clear, accessible language for readers of all backgrounds. With years of experience as a writer and educator, Torgesen has developed a reputation for making challenging topics understandable and engaging.

Disclaimer.
The information provided in this document is for general informational purposes only and is not guaranteed to be complete. While we strive to ensure the accuracy of the content, we cannot guarantee that the details mentioned are up-to-date or applicable to all scenarios. Topics about Vault, Azure Key Vault are subject to change from time to time.

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