Various embodiments are generally directed to techniques for converting between different cipher systems, such as, for instance, between a cipher system used for a first encryption environment and a different cipher system used for a second encryption environment, for instance. Some embodiments are particularly directed to an encryption engine that supports memory operations between two or more encryption environments. Each encryption environment can use different cipher systems while the encryption engine can translate ciphertext between the different cipher systems. In various embodiments, for instance, the first encryption environment may include a main memory that uses a position dependent cipher system and the second encrypted environment may include a secondary memory that uses a position independent cipher system.