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cloudencryption [2018_01_30 17:23] – external edit 127.0.0.1cloudencryption [2024_02_28 01:03] (current) – external edit 127.0.0.1
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-====== File Encryption ======+====== File Based Encryption Overview======
  
 ===== Encryption Overview ===== ===== Encryption Overview =====
  
-One of the issues that becomes apparent with more users choosing to work from mobile phones and tablets is the issue of security. Sometimes these devices can end up in the wrong hands and when that happens it is reasonable to take precautions about how can open and gain access to files you have stored in the Cloud.+One of the issues with increasing compliance regimes such as GDPR, CCPA, and increasing breaches of data is the issue of security. 
  
-The secondary security concern can be with Cloud the Providers themselvesUsers often want to protect certain files on the actual Cloud where they reside, and to that end they can want to use encryption independent of the Cloud Provider.+Most data services use an encryption 'at rest' data strategyThis encrypts all data that resides on the storage. The 'key' to the encryption is most often held by the storage providers and this key is used to encrypt all data
  
-This particular use case can be solved by using the Cloud encryption service that SME provides. Encryption works when users upload files from SME web or desktop access clients, to any of the 40+ Cloud Storage and Saas Providers that SME supports. Users connect over SSL and assign files a private key phrase to file that are uploaded.+From a compliance perspective, relying on this alone is not enough as the industry has seen high profile breaches of cloud services where data protected in this way has been exposed.
  
-This key phrase is not stored anywhere on the SME service, and files are encrypted as they stream through the SME service to the remote Cloud Provider.+Companies therefore should take additional precautions with data ie. ensuring it is encrypted independent of the storage provider. File based encryption is one such mechanism that can be used to achieve this.  
 + 
 +The Access Anywhere's file based encryption (FBE) service, when activated, stream encrypts data before it resides on the storage (where, if encryption at rest is used by the storage provider, it is additionally encrypted).  
 + 
 +You can consider file based encryption to be analogous to a safe that's stored within a bank vault.  The vault is the encryption at rest, and even if this is breached, each safe within the vault has its own layer of security that must also be 'cracked' to gain access to the data. 
 + 
 +The Access Anywhere can be used to encrypt either  individual files or  directories using a key. This can be set at a company tenant level and therefore be transparent to end user or it can e configured so that either  file or directory can each have their own individual encryption key.
  
 ===== Encryption Algorithm ===== ===== Encryption Algorithm =====
  
-SME uses AES-256 encryption using the Rijndael cipher, with Cipher Block Chaining (CBC) where the block size is 16 bytes. The cipher Rijndael consists of:+The Access Anywhere uses [[fips|FIPS certified]] AES-256 encryption using the Rijndael cipher, with Cipher Block Chaining (CBC) where the block size is 16 bytes. The cipher Rijndael consists of:
  
   * an initial Round Key addition   * an initial Round Key addition
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 Any AES-256 decryption tool that supports the Rijndael cipher with 16 byte blocksizes can be used to un-encrypt files. Any AES-256 decryption tool that supports the Rijndael cipher with 16 byte blocksizes can be used to un-encrypt files.
  
-SME provides free stand-alone desktop Apps (Mac, Windows, Linux) to also enable un-encryption, available from the SME Cloud Tools section of the website. +The Access Anywhere provides free stand-alone desktop Apps (Mac, Windows, Linux) to also enable de-encryption, if the encryption key is known, directly from the storage (without having to use Access Anywhere).
 ===== Encryption Scope ===== ===== Encryption Scope =====
  
-Encryption can be set at an Org (Team) or on a Personal level.+Encryption can be set for the whole team by Access Anywhere Administrator by setting an encryption policy. This can be set at a global level (all files) or it can be only for nominated folders or files.
  
-===== Team Encryption =====+If global team encryption is not turned on, Access Anywhere Administrator can set the scope to be on a per user level, in which the end user is responsible for setting and remembering the encryption key.
  
-The Cloud Admin of the Team Account can set by logging in to the Web and choosing //"menu —> options —>Encryption"// and choosing the encryption password and scope. 
  
-Once this password is set then Cloud Files for all users of the Primary Cloud are 'encrypted at rest’ therein.+  
 +===== Org Encryption ===== 
 + 
 +(Previously known as Team Encryption) 
 + 
 +The Access Anywhere Administrator of the Org Account can set encryption by logging into the Web and choosing //"Organization —> Policies —> Encryption"// and choosing the encryption password and scope. 
 + 
 +Once this password is set then Files for all users of the Primary Cloud are 'encrypted at rest’ therein (this is additional to any 'encryption at rest' set by a storage provider).
  
 **Note:** Existing files are not encrypted only new file uploads are encrypted. **Note:** Existing files are not encrypted only new file uploads are encrypted.
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 ---- ----
  
-The password is stored, in an encrypted fashion, in the SME appliance and does not leave the appliance as it is used to encrypt/decrypt files on demand.+The password is stored, in an encrypted fashion, in Access Anywhere and does not leave the appliance as it is used to encrypt/decrypt files on demand.
  
  
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   * All shared team folders   * All shared team folders
   * All Shared team folders plus user files   * All Shared team folders plus user files
 +  * Nominated Folders
  
 //Share Team Folders:// Only team folders are encrypted the users personal files are not encrypted //Share Team Folders:// Only team folders are encrypted the users personal files are not encrypted
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 //All Shared Team folders plus user files:// Shared Team folders and users personal files in the personal cloud are encrypted at rest //All Shared Team folders plus user files:// Shared Team folders and users personal files in the personal cloud are encrypted at rest
  
 +Nominated folders: Only files in nominated are encrypted.
 ---- ----
  
-For team folders, the encryption **is transparent** to end users. Team users **do not need to know** the encryption password and files are simply encrypted and decrypted as accessed via SME Apps.+For team folders, the encryption **is transparent** to end users. Authenticated Team users **do not need to know** the encryption password and files are simply encrypted and decrypted as accessed via Access Anywhere Apps once they are authenticated and authorised to access the resource.
  
 Team encrypted files that are shared without passwords also **do not** require the recipient to know the encryption password. Team encrypted files that are shared without passwords also **do not** require the recipient to know the encryption password.
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 Standalone desktop decryption tools are provided in the event users want to download encrypted files direct from remote clouds or data stores. Standalone desktop decryption tools are provided in the event users want to download encrypted files direct from remote clouds or data stores.
- 
 ===== Personal Encryption ===== ===== Personal Encryption =====
  
 ==== Uploading ==== ==== Uploading ====
  
-A user can set his own password to encrypt files uploaded in the web browser (entered when uploading)in the desktop tools, and also using the SME Android App.+A user can set his own password to encrypt files uploaded in the web browser (entered when uploading) and in the desktop tools.
  
 +In the browser when uploading the user has the option to encrypt the files and enter the encryption phrase. The encrypted file will be listed with a shield icon.
  
-----+{{ cloudencryption:personal-encryption.png?400 |}}
  
-In the browser when uploading the user has the option to encrypt the files and enter the encryption phrase. +For Windows and Mac Apps the user can set the encryption phrase in settings or in the dedicated windows explorer explicitly set the encryption password on upload.
- +
- +
----- +
- +
-For windows and mac tools the user can set the encryption phrase in settings or in the dedicated windows explorer explicitly set the encryption password on upload. +
- +
- +
----- +
- +
-On the SME Android App files uploaded can also be encrypted on upload from the device +
- +
- +
-----+
  
-Unlike the account level encryption the encryption phrase set by personal users is **not stored on the server** ie. the user has to remember the phrase otherwise they will not be able to gain access to the file and if they forget it there is no way for the SME service to recover it.+Unlike the account level encryption the encryption phrase set by personal users is **not stored on the server** ie. the user has to remember the phrase otherwise they will not be able to gain access to the file and if they forget it there is no way for the NAA service to recover it.
  
 **Note:** also that different phrases can be used for different files. **Note:** also that different phrases can be used for different files.
  
- +As an optimization Access Anywhere desktop tools provide an option to save a single encryption phrase for ease of use when dealing with files from the desktop.
----- +
- +
-As an optimization the SME desktop tools provide an option to save a single encryption phrase for ease of use when dealing with files from the desktop.+
  
 ===== Encryption Scope Precedence ===== ===== Encryption Scope Precedence =====
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 If team level encryption scope is set as All Shared team folders plus user files then the encryption phrase set by the admin is used for team folders and the users personal files. The users encryption phrase is not used and the option to encrypt is **not available to the user**. If team level encryption scope is set as All Shared team folders plus user files then the encryption phrase set by the admin is used for team folders and the users personal files. The users encryption phrase is not used and the option to encrypt is **not available to the user**.
  
 +===== Bi-Modal Use =====
 +
 +Note that if Files are encrypted through Access Anywhere they will only be accessible through Access Anywhere. This can often be the intent with sensitive data stored on remote storage provider but you should note that if such files are subsequently moved directly on the storage then they will become inaccessible directly and will need to be accessed by using Access Anywhere's standalone desktop decryption App which is available for Mac, Windows or Linux.
 ===== Password Change ===== ===== Password Change =====