Encrypted virtual machines in a cloud

1. A system for accessing encrypted replication data stored on a storage medium, the system comprising:

a remote replication appliance, and

computer-executable logic operating in memory, wherein the computer-executable program logic is configured to enable a processor to execute:

intercepting communication between a virtual machine and the encrypted replication data stored on the storage medium and redirecting the communication to the remote replication appliance;

installing a certificate for accessing a key manager;

obtaining a key from the key manager;

using the key stored on the remote replication appliance to enable the virtual machine to facilitate communication with the encrypted replication data stored on the storage medium; wherein facilitating communication enables the virtual machine to interact with the encrypted replication data as unencrypted data by having the remote replication appliance use the key to decrypt and encrypt data for the virtual machine;

erasing the key from the remote replication appliance when the certificate is not re-installed at a regular interval.

2. The system of claim 1 , wherein the facilitating communication comprises encrypting data sent from the virtual machine and sending the encrypted data to the encrypted replication data stored on the storage medium.

3. The system of claim 1 , wherein facilitating communication comprises decrypting data sent from the encrypted replication data stored on the storage medium and sending the decrypted data to the virtual machine.

4. The system of claim 1 wherein obtaining the key from the key manager comprises providing the key manager with a key ID.

5. The system of claim 1 wherein the program logic is further configured to enable the processor to execute:

erasing the key from the remote replication appliance once communication between the virtual machine and the encrypted replication data stored on the storage medium has finished.

6. The system of claim 1 wherein redirecting the communication comprises sending data to the remote replication appliance as a SCSI command and modifying fields in a CDB of the SCSI command.

7. A method for accessing encrypted replication data stored on a storage medium, the method comprising:

intercepting communication between a virtual machine and the encrypted replication data stored on the storage medium and redirecting the communication to a remote replication appliance;

installing a certificate for accessing a key manager;

obtaining a key from the key manager;

using the key stored on the remote replication appliance to enable the virtual machine to facilitate communication with the encrypted replication data stored on the storage medium; wherein facilitating communication enables the virtual machine to interact with the encrypted replication data as unencrypted data by having the remote replication appliance use the key to decrypt and encrypt data for the virtual machine;

erasing the key from the remote replication appliance when the certificate is not re-installed at a regular interval.

8. The method of claim 7 wherein the facilitating communication comprises encrypting data sent from the virtual machine and sending the encrypted data to the encrypted replication data stored on the storage medium.

9. The method of claim 7 wherein facilitating communication comprises decrypting data sent from the encrypted replication data stored on the storage medium and sending the decrypted data to the virtual machine.

10. The method of claim 7 wherein obtaining the key from the key manager comprises providing the key manager with a key ID.

11. The method of claim 7 further comprising erasing the key from the remote replication appliance once communication between the virtual machine and the encrypted replication data stored on the storage medium has finished.

12. The method of claim 7 wherein redirecting the communication comprises sending data to the remote replication appliance as a SCSI command and modifying fields in a CDB of the SCSI command.

13. A computer program product comprising:

a non-transitory computer readable medium encoded with computer executable program code, wherein the code enables a processor to execute:

intercepting communication between a virtual machine and encrypted replication data stored on a storage medium and redirecting the communication to a remote replication appliance;

installing a certificate for accessing a key manager;

obtaining the key from the key manager;

using the key stored on the remote replication appliance to enable the virtual machine to facilitate communication with the encrypted replication data stored on the storage medium; wherein facilitating communication enables the virtual machine to interact with the encrypted replication data as unencrypted data by having the remote replication appliance use the key to decrypt and encrypt data for the virtual machine;

erasing the key from the remote replication appliance when the certificate is not re-installed at a regular interval.

14. The program product of claim 13 wherein the facilitating communication comprises encrypting data sent from the virtual machine and sending the encrypted data to the encrypted replication data stored on the storage medium.

15. The program product of claim 13 wherein facilitating communication comprises decrypting data sent from the encrypted replication data stored on the storage medium and sending the decrypted data to the virtual machine.

16. The program product of claim 13 wherein obtaining the key from the key manager comprises providing the key manager with a key ID.

17. The program product of claim 13 wherein the code further enables the processor to execute:

erasing the key from the remote replication appliance once communication between the virtual machine and the encrypted replication data stored on the storage medium has finished.

18. The program product of claim 13 wherein redirecting the communication comprises sending data to the remote replication appliance as a SCSI command and modifying fields in a CDB of the SCSI command.