completed key generation and encryption/decryption

Makefile

go.mod

go.sum

key/key.go

key/key_test.go

key/manager.go

key/params_test.go

key/session.go

key/stateVector.go

key/status.go

keyStore/keyManager.go

keyStore/keyStore.go

keyStore/recieveKeyManagerBuffer.go

keyStore/recieveKeyManagerBuffer_test.go

storage/versionedkv.go