> For the complete documentation index, see [llms.txt](https://stephen-tsoi.gitbook.io/stephen-tsoi-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://stephen-tsoi.gitbook.io/stephen-tsoi-docs/messaging-technology/messaging-bus-comparison-series/comparision-13-authentication.md). # Comparision #13: Authentication


Product	Authentication Methods	Authorization
ActiveMQ	· Basic Authentication (Username/Password) · LDAP · OAuth 2.0 · Client Certificates (TLS) · SimpleAuthenticationPlugin (XML-defined users) · JAAS (Java Authentication and Authorization Service) · SimpleAuthenticationPlugin (XML-defined users) · SCRAM (Salted Challenge Response Authentication Mechanism) · Custom plugins	· ACL: JAAS, SimpleAuthorizationPlugin · Group-to-permission: activemq.xml
AWS SQS Queue	· AWS STS (temporary credentials) · Signature Version 4 (HMAC-SHA256)	· IAM identity-based policies · resource-based queue policies
Azure Queue Storage	· Azure Active Directory (Microsoft Entra ID) · Shared Access Signature (SAS)- for HTTP only · Account Keys · Managed Identity (for Azure services)	· Shared Key, · Shared Access Signatures (SAS) · Azure AD-based RBAC
Azure Service Bus	· Azure Active Directory (OAuth 2.0) · Shared Access Signature (SAS) · Managed Identity	· Azure AD · RBAC · Shared Access Signatures (SAS)
EMQX	· Basic Authentication (Username/Password) · LDAP (via HTTP Auth plugin) · OAuth 2.0 · Client Certificates (TLS) · PSK (Pre-Shared Key) · SCRAM (Salted Challenge Response Authentication Mechanism)	· Supported backends include file, built-in database, MySQL, PostgreSQL, MongoDB, Redis, LDAP, HTTP, etc. · Authorizers can be chained for flexible permission checks
IBM MQ	· Basic Authentication (Username/Password) · LDAP integration (IDPWLDAP) Authentication Token · OAuth 2.0 · TLS mutual authentication · Operating System authentication (IDPWOS) · Security Exits & Custom Authentication logic	· Utilizes the Object Authority Manager (OAM) for object-level permissions. · Permissions (connect, put, get, admin) granted via setmqaut, MQSC commands, or OS-level/RACF settings. · Channel authorization and MCAUSER control additional access context
Kafka	· Basic Authentication (Username/Password) · OAuth 2.0 · Client Certificates (TLS) · Kerberos · JAAS configuration · SCRAM (Salted Challenge Response Authentication Mechanism)	· Pluggable authorizer · ACLs
RabbitMQ	· Basic Authentication (Username/Password) · LDAP (via HTTP Auth plugin) · OAuth 2.0 · Client Certificates (TLS)	· Supports authorization via vhost-level permissions: regex-based configure, write, and read patterns. · Authentication backends include internal users, LDAP, or OAuth2 JWT plugin.
Solace PubSub+	· Basic Authentication (Username/Password) · LDAP (via HTTP Auth plugin) · OAuth 2.0 · Client Certificates (TLS) · RADIUS · Kerberos	Client Profiles ACL profiles Queue Owner OAuth JWT Token
Tibco EMS	· Basic Authentication (Username/Password) · LDAP (via HTTP Auth plugin) · OAuth 2.0 · Client Certificates (TLS) · JAAS (for JMS)	· Supports ACL-based security via users.conf and acl.conf · Administered using tibemsadmin, granting permissions to users/groups for queues/topics (e.g., send/receive/browse) · OAuth JWT Token

Product

Authentication Methods

Authorization

ActiveMQ

· Basic Authentication (Username/Password)

· LDAP

· OAuth 2.0

· Client Certificates (TLS)

· SimpleAuthenticationPlugin (XML-defined users)

· JAAS (Java Authentication and Authorization Service)

· SimpleAuthenticationPlugin (XML-defined users)

· SCRAM (Salted Challenge Response Authentication Mechanism)

· Custom plugins

· ACL: JAAS, SimpleAuthorizationPlugin

· Group-to-permission: activemq.xml

AWS SQS Queue

· AWS STS (temporary credentials)

· Signature Version 4 (HMAC-SHA256)

· IAM identity-based policies

· resource-based queue policies

Azure Queue Storage

· Azure Active Directory (Microsoft Entra ID)

· Shared Access Signature (SAS)- for HTTP only

· Account Keys

· Managed Identity (for Azure services)

· Shared Key,

· Shared Access Signatures (SAS)

· Azure AD-based RBAC

Azure Service Bus

· Azure Active Directory (OAuth 2.0)

· Shared Access Signature (SAS)

· Managed Identity

· Azure AD

· RBAC

· Shared Access Signatures (SAS)

EMQX

· Basic Authentication (Username/Password)

· LDAP (via HTTP Auth plugin)

· OAuth 2.0

· Client Certificates (TLS)

· PSK (Pre-Shared Key)

· SCRAM (Salted Challenge Response Authentication Mechanism)

· Supported backends include file, built-in database, MySQL, PostgreSQL, MongoDB, Redis, LDAP, HTTP, etc.

· Authorizers can be chained for flexible permission checks

IBM MQ

· Basic Authentication (Username/Password)

· LDAP integration (IDPWLDAP)
Authentication Token

· OAuth 2.0

· TLS mutual authentication

· Operating System authentication (IDPWOS)

· Security Exits & Custom Authentication logic

· Utilizes the Object Authority Manager (OAM) for object-level permissions.

· Permissions (connect, put, get, admin) granted via setmqaut, MQSC commands, or OS-level/RACF settings.

· Channel authorization and MCAUSER control additional access context

Kafka

· Basic Authentication (Username/Password)

· OAuth 2.0

· Client Certificates (TLS)

· Kerberos

· JAAS configuration

· SCRAM (Salted Challenge Response Authentication Mechanism)

· Pluggable authorizer

· ACLs

RabbitMQ

· Basic Authentication (Username/Password)

· LDAP (via HTTP Auth plugin)

· OAuth 2.0

· Client Certificates (TLS)

· Supports authorization via vhost-level permissions: regex-based configure, write, and read patterns.

· Authentication backends include internal users, LDAP, or OAuth2 JWT plugin.

Solace PubSub+

· Basic Authentication (Username/Password)

· LDAP (via HTTP Auth plugin)

· OAuth 2.0

· Client Certificates (TLS)

· RADIUS

· Kerberos

Client Profiles

ACL profiles

Queue Owner

OAuth JWT Token

Tibco EMS

· Basic Authentication (Username/Password)

· LDAP (via HTTP Auth plugin)

· OAuth 2.0

· Client Certificates (TLS)

· JAAS (for JMS)

· Supports ACL-based security via users.conf and acl.conf

· Administered using tibemsadmin, granting permissions to users/groups for queues/topics (e.g., send/receive/browse)

· OAuth JWT Token

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