Identity-as-a-Service (IDaaS) refers to the identity and access management (IAM) services provided by the cloud service provider on a subscription basis. This store information as a digital entity and is used for electronic transactions. Some of the significant core functions of IDaaS are:

1. Data Stores
2. Policy Engine
3. Query Engine

IDaaS is a category in which user identity is hosted on the cloud, which helps to ensure that authorized users can only get access and block cyber criminals and unauthorized access to sensitive data.

What is Identity?

An identity is a characteristic and attributes that makes something recognized uniquely. Objects may have the same attributes, but their unique identities are different. This unique identity is assigned with the help of unique identification.

Identity-as-a-Service (IDaaS) provider offers Services: 

1. Single sign-on (SSO): Single sign-on (SSO) allows users to log in once at the network parameter and access all the SaaS applications. SSO provides a single authentication server and manages access to multiple systems. The user logins to the authentication server using his username and password, and the authentication server generates the user’s ticket and sends it back to the user. After the user sends the ticket to the intranet server, the intranet server passes that ticket to the authentication server. The authentication server returns the user's security credentials to the intranet server.
2. Multi-factor authentication (MFA): Multi-factor authentication (MFA) uses multiple authentication methods to verify the user's identity. For example, users may be asked to enter the USB device into their system to log in, along with a password. MFA provides more security than the classic username and password method.
3. Identity Management: Identity providers (IdP) create, store, manage and maintain the digital identity information, which is used to provide authentication access to the application within a distributed network or federation.

Benefits of Identity-as-a-Service (IDaaS)

1. Reduce Risks: Provides multiple security methods of accessing the application.
2. Cost Effective: IDaaS is cost-effective and quickly set up by the service provider. It makes things less complicated and frees the IT staff from core business initiatives.
3. Improve User Experience: It helps users from password fatigue and allows users to access the application consistently help of a single set of credentials.
4. Easily Setup: IDaaS is easy to set up and configure at a lower price.