Does vSphere 6.0 support VM encryption?

[SamSamSony]

I plan to implement VM encryption in current environment where VM is hosted by ESXi 6.0 and managed by vCenter 6.0 cluster. Does vSphere 6.0 support VM encryption? What components are required?

Do I have to upgrade the whole environment to 6.5 which brings VM encryption?

[Shawnlo]

I believe you do need to be at version 6.5 

Virtual Machine Encryption

[SureshKumarMuth]

VM Encryption feature was introduced in 6.5. Yes, you have upgrade your environment if you want to use the feature in vSphere . following link has the information about VM Encryption and pre-requisites

Virtual Machine Encryption