A TTP (Trusted Third Party) is tasked with assuring specific security characteristics within a cloud environment, while realizing a trust mesh between involved entities, forming federations of clouds. The solution, presents a horizontal
level of service, available to all implicated entities, that realizes a security mesh, within which essential trust is maintained. This approach makes use of a combination of Public Key Cryptography, Single-Sign-On technology and
LDAP directories to securely identify and authenticate implicated entities.