first go through this specification

Write a requirements document that contain:
1. Single Sign On, Identity management, permissions management, authentication management and authorization management for different applications
2. Functional & Non Functional Requirements for the SSO
3. Use cases
4. Data Model for the SSO
5. Recommendations about the development and design
6. Development and coding conventions for the SSO application
7. How It suppose to be integrated with other applications
8. How it can be integrated with Google and other accounts services
9. How it integrates will LDAP
10. Admin side and user side Requirements

The requirements will be collected from studying different standard SSO application and listing the features then filtering and selecting the relevant features then detailing the requirements document for the selected features.

The feature list should be comprehensive.

ok after seeing all of bidders document i will send you the original one that means this a competion betwen all bidder how to solve this.
Depending on that you have to made the developement.Plz dont need to give your work or portfolio

just realize the requirement and write the specification.i will decide with in 5 hour.

your time starts from now............