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2 Fabric OS Encryption Administrator’s Guide (DPM)
53-1002720-02
Terminology
1
Terminology
The following are definitions of terms used extensively in this document.
ciphertext
Encrypted data.
cleartext
Unencrypted data.
CryptoModule
The secure part of an encryption engine that is protected to the FIPS 140-2 level 3
standard. The term CryptoModule is used primarily in the context of FIPS
authentication.
Data Encryption Key (DEK)
An encryption key generated by the encryption engine. The DEK is used to encrypt
cleartext received from a host before it is sent to a target LUN, and to decrypt that data
when it is retrieved by the host.
Data Encryption Key Cluster
(DEK Cluster)
A cluster of encryption engines which can host all paths to a LUN and share the same
data encryption key (DEK) set. The encryption engines can be in the same or different
fabrics. DEK clusters enable host MPIO failover.
Encryption Engine
The entity within a node that performs encryption operations, including the generation
of Data Encryption Keys.
Encryption Group
A collection of one or more DEK clusters, HA clusters, or both, which share the same key
vault and device configuration, and is managed as a single group.
Failback
In the context of this implementation of encryption, failback refers to behavior after a
failed encryption switch recovers. Devices that were transferred to another switch by
failover processing may automatically be transferred back, or they may be manually
switched back. This is determined as a configuration option.
Failover
In the context of this implementation of encryption, failover refers to the automatic
transfer of devices hosted by one encryption switch to another encryption switch within
a high availability cluster (HA cluster).
Group Leader
A group leader is a special node within an encryption group which acts as a group and
cluster manager, and manages and distributes all group-wide and cluster-wide
configurations to all members of the group or cluster.
High Availability Cluster
(HA Cluster)
A collection of peer-level encryption engines that provide failover capabilities within a
fabric.
Key Encryption Key
A key used to encrypt and decrypt Data Encryption Keys (DEKs) within encryption
devices so that DEKs are transmitted in a secure manner outside of the encryption
engines, and stored persistently inside key vaults.
Link Key
A shared secret exchanged between an encryption engine and a FIPS 140-2 level 3
certified key management appliance and key vault. The link key is an Key Encryption
Key (KEK) that is used to encrypt Data Encryption Keys (DEKs) in transit over a secure
connection to and from the key vault. The key management appliance decrypts the
DEKs and stores them encrypted with its own master key.
Logical Unit Number (LUN)
The identifier of a SCSI logical unit.
Master Key
A Key Encryption Key (KEK) used to encrypt and decrypt DEKs when storing DEKs in
opaque key vaults. There is one master key per encryption group. That means all node
encryption engines within an encryption group use the same master key to encrypt and
decrypt the DEKs.
Node
In terms of encryption, a Brocade Encryption Switch, DCX, or DCX-4S through which
users can manage an encryption engine.
- Fabric OS Encryption 1
- Document History 2
- Contents 3
- 53-1002720-02 10
- About This Document 13
- What’s new in this document 14
- Document conventions 14
- Command syntax conventions 15
- Notes, cautions, and warnings 15
- Additional information 16
- Getting technical help 17
- Document feedback 18
- Encryption Overview 19
- Terminology 20
- The Brocade Encryption Switch 22
- The FS8-18 blade 23
- FIPS mode 23
- Performance licensing 23
- Usage limitations 24
- FIGURE 2 Encryption overview 25
- FIGURE 3 Frame redirection 26
- IO Sync LAN 27
- FIGURE 5 DEK life cycle 28
- Master key management 29
- Support for virtual fabrics 29
- Encryption Center features 32
- Encryption user privileges 33
- Smart card usage 34
- Using system cards 39
- Deregistering system cards 41
- Using smart cards 41
- Tracking smart cards 42
- Editing smart cards 44
- Network connections 45
- Blade processor links 45
- (KAC) certificate 46
- Encryption preparation 53
- Creating an encryption group 53
- Creating HA clusters 70
- Failback option 72
- Invoking failback 72
- Adding an encryption target 73
- FIGURE 46 Next Steps screen 81
- Configuring storage arrays 89
- Remote replication LUNs 89
- SRDF pairs 90
- Moving targets 94
- Tape LUN statistics 97
- Encryption engine rebalancing 102
- Master keys 103
- Active master key 104
- Alternate master key 104
- Master key actions 104
- ATTENTION 106
- Creating a master key 111
- Security Settings 112
- Setting zeroization 113
- Redirection zones 115
- Disk device decommissioning 115
- Decommissioning disk LUNs 116
- Displaying Universal IDs 118
- Setting disk LUN Re-key All 119
- Thin provisioned LUNs 123
- Thin Provisioning support 124
- Time left for auto rekey 125
- General tab 131
- Members tab 133
- Members tab Remove button 134
- Security tab 135
- HA Clusters tab 137
- Tape Pools tab 139
- Adding tape pools 140
- Engine Operations tab 141
- TABLE 3 Encryption acronyms 142
- In this chapter 143
- Overview 144
- Command validation checks 144
- (Continued) 146
- Cryptocfg Help command output 148
- Management LAN configuration 148
- Configuring cluster links 149
- Node is a group leader node 150
- Node is a member node 150
- • FIPS crypto officer 151
- • FIPS user 151
- • Node CP certificate 151
- Submitting the CSR to a CA 154
- • cryptocfg --initEE 161
- • cryptocfg --regEE 161
- • cryptocfg --enableEE 161
- High availability clusters 166
- Creating an HA cluster 167
- Policy Configuration Examples 170
- Re-exporting a master key 171
- Viewing the master key IDs 172
- Zoning considerations 175
- Frame redirection zoning 176
- Gathering information 180
- Crypto LUN configuration 184
- Discovering a LUN 185
- Configuring a Crypto LUN 186
- Configuring a tape LUN 189
- Decommissioning LUNs 193
- SRDF LUNs 198
- --set -replication enable 199
- Adding replication LUNs 200
- Reading metadata after sync 200
- -newLUN option 201
- TF snapshot rekeying details 207
- -not_ready option of TF 208
- <initiator PWWN> 208
- ID> <initiator PWWN> 210
- Tape pool configuration 212
- CommVault Galaxy labeling 213
- NetBackup labeling 213
- Creating a tape pool 214
- Deleting a tape pool 215
- Modifying a tape pool 215
- First-time encryption 220
- Space reclamation 222
- Data rekeying 223
- Deployment Scenarios 227
- --rdcreate [host wwn] 236
- FIGURE 103 FCIP deployment 238
- Data mirroring deployment 239
- VMware ESX server deployments 241
- General guidelines 244
- HP-UX considerations 248
- Enabling a disabled LUN 249
- AIX Considerations 249
- Disk metadata 250
- Tape metadata 250
- Tape data compression 251
- Tape pools 251
- Tape block zero handling 252
- Tape key expiry 252
- Avoid double encryption 254
- PID failover 254
- Manual rekey 255
- Latency in rekey operations 255
- Key Vault Best Practices 259
- Tape Device LUN Mapping 259
- Deleting an encryption group 265
- Removing an HA cluster member 265
- Deleting an HA cluster member 269
- Failover/failback example 270
- Recovery 271
- -hbmisses and -hbtimeout 276
- Key vault diagnostics 282
- Command Activity 285
- Problem Resolution 285
- General errors and conditions 286
- LUN policy troubleshooting 293
- MPIO and internal LUN states 295
- Multi-node EG replacement 296
- Single-node EG replacement 298
- Multi-node EG Case 299
- Single-node EG Replacement 302
- Deregistering a DPM key vault 305
- TABLE 15 Compatibility Matrix 308
- State and Status Information 311
- Security processor KEK status 312
- Encrypted LUN states 312
- TABLE 22 Tape LUN states 315
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