diff --git a/backup/utils_test.go b/backup/utils_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..9a1d03976d8df5e71cfb7d87d1e5e32ce775caf8
--- /dev/null
+++ b/backup/utils_test.go
@@ -0,0 +1,157 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2020 xx network SEZC //
+// //
+// Use of this source code is governed by a license that can be found in the //
+// LICENSE file //
+////////////////////////////////////////////////////////////////////////////////
+
+package backup
+
+import (
+ "testing"
+ "time"
+
+ "gitlab.com/elixxir/crypto/cyclic"
+ "gitlab.com/elixxir/primitives/fact"
+ "gitlab.com/xx_network/crypto/large"
+ "gitlab.com/xx_network/crypto/signature/rsa"
+ "gitlab.com/xx_network/primitives/id"
+)
+
+// Adheres to the E2e interface.
+type mockE2e struct {
+ partnerIDs []*id.ID
+ historicalDHPubkey *cyclic.Int
+ historicalDHPrivkey *cyclic.Int
+}
+
+func newMockE2e(t testing.TB) *mockE2e {
+ grp := cyclic.NewGroup(large.NewInt(173), large.NewInt(0))
+ return &mockE2e{
+ partnerIDs: []*id.ID{
+ id.NewIdFromString("partner1", id.User, t),
+ id.NewIdFromString("partner2", id.User, t),
+ id.NewIdFromString("partner3", id.User, t),
+ },
+ historicalDHPubkey: grp.NewInt(45),
+ historicalDHPrivkey: grp.NewInt(46),
+ }
+}
+func (m *mockE2e) GetAllPartnerIDs() []*id.ID { return m.partnerIDs }
+func (m *mockE2e) GetHistoricalDHPubkey() *cyclic.Int { return m.historicalDHPubkey }
+func (m *mockE2e) GetHistoricalDHPrivkey() *cyclic.Int { return m.historicalDHPrivkey }
+
+// Adheres to the Session interface.
+type mockSession struct {
+ regCode string
+ transmissionID *id.ID
+ transmissionSalt []byte
+ receptionID *id.ID
+ receptionSalt []byte
+ receptionRSA *rsa.PrivateKey
+ transmissionRSA *rsa.PrivateKey
+ transmissionRegistrationValidationSignature []byte
+ receptionRegistrationValidationSignature []byte
+ registrationTimestamp time.Time
+}
+
+func newMockSession(t testing.TB) *mockSession {
+ receptionRSA, _ := rsa.LoadPrivateKeyFromPem([]byte(privKey))
+ transmissionRSA, _ := rsa.LoadPrivateKeyFromPem([]byte(privKey))
+
+ return &mockSession{
+ regCode: "regCode",
+ transmissionID: id.NewIdFromString("transmission", id.User, t),
+ transmissionSalt: []byte("transmissionSalt"),
+ receptionID: id.NewIdFromString("reception", id.User, t),
+ receptionSalt: []byte("receptionSalt"),
+ receptionRSA: receptionRSA,
+ transmissionRSA: transmissionRSA,
+ transmissionRegistrationValidationSignature: []byte("transmissionSig"),
+ receptionRegistrationValidationSignature: []byte("receptionSig"),
+ registrationTimestamp: time.Date(2012, 12, 21, 22, 8, 41, 0, time.UTC),
+ }
+
+}
+func (m mockSession) GetRegCode() (string, error) { return m.regCode, nil }
+func (m mockSession) GetTransmissionID() *id.ID { return m.transmissionID }
+func (m mockSession) GetTransmissionSalt() []byte { return m.transmissionSalt }
+func (m mockSession) GetReceptionID() *id.ID { return m.receptionID }
+func (m mockSession) GetReceptionSalt() []byte { return m.receptionSalt }
+func (m mockSession) GetReceptionRSA() *rsa.PrivateKey { return m.receptionRSA }
+func (m mockSession) GetTransmissionRSA() *rsa.PrivateKey { return m.transmissionRSA }
+func (m mockSession) GetTransmissionRegistrationValidationSignature() []byte {
+ return m.transmissionRegistrationValidationSignature
+}
+func (m mockSession) GetReceptionRegistrationValidationSignature() []byte {
+ return m.receptionRegistrationValidationSignature
+}
+func (m mockSession) GetRegistrationTimestamp() time.Time { return m.registrationTimestamp }
+
+// Adheres to the UserDiscovery interface.
+type mockUserDiscovery struct {
+ facts fact.FactList
+}
+
+func newMockUserDiscovery() *mockUserDiscovery {
+ return &mockUserDiscovery{facts: fact.FactList{
+ {"myUserName", fact.Username},
+ {"hello@example.com", fact.Email},
+ {"6175555212", fact.Phone},
+ {"name", fact.Nickname},
+ }}
+}
+func (m mockUserDiscovery) GetFacts() fact.FactList { return m.facts }
+
+const privKey = `-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----`