Policy Reference Guide

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S/MIME Application policy group

The IT policy rules in the S/MIME Application policy group apply to BlackBerry® devices that are running the S/MIME Support Package for BlackBerry® smartphones. For more information about using the S/MIME Support Package for BlackBerry smartphones, see the S/MIME Support Package for BlackBerry Devices Security Technical Overview.

Entrust Messaging Server (EMS) Email Address IT policy rule

Description

This rule specifies the email address for your organization's Entrust Entelligence™ Messaging Server.

Default value

  • Null value

Exceptions

  • BlackBerry® Enterprise Server for Novell® GroupWise®

Minimum requirements

  • BlackBerry® Device Software 4.0
  • S/MIME Support Package for BlackBerry® smartphones 4.0

Rule introduction

  • BlackBerry® Enterprise Server 4.0 SP3

S/MIME Allowed Content Ciphers IT policy rule

Description

This rule specifies the encryption algorithms that a BlackBerry® device can use to encrypt S/MIME-protected email messages.

To maintain compatibility with most S/MIME clients, use Triple DES encryption and one of the RC2 algorithms. By default, the device is designed to encrypt email messages using Triple DES encryption if it does not know the decryption capabilities available to the recipient.

Possible values

  • AES (256-bit)
  • AES (192-bit)
  • AES (128-bit)
  • CAST (128-bit)
  • RC2 (128-bit)
  • Triple DES
  • RC2 (64-bit)
  • RC2 (40-bit)

Default value

  • AES (256-bit), AES (192-bit), AES (128-bit), CAST (128-bit), RC2 (128-bit), and Triple DES

Exceptions

  • BlackBerry® Enterprise Server for Novell® GroupWise®

Minimum requirements

  • BlackBerry® Device Software 3.6
  • S/MIME Support Package for BlackBerry® smartphones 1.5

Rule introduction

  • BlackBerry® Enterprise Server 4.0 SP3

S/MIME Allowed Encrypted Attachment Mode IT policy rule

Description

This rule specifies the mode for retrieving S/MIME-protected attachment information on a BlackBerry® device.

Possible values

  • Automatic
  • Manual
  • None

Default value

  • Automatic

Minimum requirements

  • BlackBerry® Device Software 4.5

Rule introduction

  • BlackBerry® Enterprise Server 4.1 SP5

S/MIME Allowed Encryption Types IT policy rule

Description

This rule specifies the types of encryption that a BlackBerry® device can use with S/MIME-protected email messaging.

Possible values

  • Certificate-based encryption
  • Password-based encryption
  • Both

Default value

  • Both

Minimum requirements

  • BlackBerry® Device Software 4.6
  • S/MIME Support Package for BlackBerry® smartphones 4.0

Rule introduction

  • BlackBerry® Enterprise Server 4.1 SP6

S/MIME Blind Copy Address IT policy rule

Description

This rule specifies an email address that is added as a BCC recipient to S/MIME-protected email messages that a BlackBerry® device user sends.

Default value

  • Null value

Exceptions

  • BlackBerry® Enterprise Server for Novell® GroupWise®

Minimum requirements

  • BlackBerry® Device Software 3.6
  • S/MIME Support Package for BlackBerry® smartphones 1.5

Rule introduction

  • BlackBerry® Enterprise Server 4.0 SP3

S/MIME Force Digital Signature IT policy rule

Description

This rule specifies whether a BlackBerry® device sends all S/MIME-protected email messages with a digital signature.

Possible values

  • Yes
  • No

Default value

  • No

Exceptions

  • BlackBerry® Enterprise Server for Novell® GroupWise®

Minimum requirements

  • BlackBerry® Device Software 3.6
  • S/MIME Support Package for BlackBerry® smartphones 1.5

Rule introduction

  • BlackBerry® Enterprise Server 4.0 SP3

S/MIME Force Encrypted Messages IT policy rule

Description

This rule specifies whether a BlackBerry® device encrypts all email messages that a BlackBerry device user sends using S/MIME encryption.

Possible values

  • Yes
  • No

Default value

  • No

Exceptions

  • BlackBerry® Enterprise Server for Novell® GroupWise®

Minimum requirements

  • BlackBerry® Device Software 3.6
  • S/MIME Support Package for BlackBerry® smartphones 1.5

Rule introduction

  • BlackBerry® Enterprise Server 4.0 SP3

S/MIME Force Smartcard Use IT policy rule

Description

This rule specifies whether a BlackBerry® device must perform all operations that use certificates while the device is attached to a BlackBerry® Smart Card Reader.

Possible values

  • Yes
  • No

Default value

  • No

Exceptions

  • BlackBerry® Enterprise Server for Novell® GroupWise®

Minimum requirements

  • BlackBerry® Device Software 3.6
  • S/MIME Support Package for BlackBerry® smartphones 1.5

Rule introduction

  • BlackBerry® Enterprise Server 4.0 SP3

S/MIME Minimum Strong DH Key Length IT policy rule

Description

This rule specifies the minimum Diffie-Hellman key size to use with S/MIME-protected email messages.

Possible values

  • 512 to 4096 bits

Default value

  • 1024 bits

Exceptions

  • BlackBerry® Enterprise Server for Novell® GroupWise®

Minimum requirements

  • BlackBerry® Device Software 3.6
  • S/MIME Support Package for BlackBerry® smartphones 1.5

Rule introduction

  • BlackBerry® Enterprise Server 4.0 SP3

S/MIME Minimum Strong DSA Key Length IT policy rule

Description

This rule specifies the minimum DSA key size that a BlackBerry® device uses with S/MIME-protected email messages.

Possible values

  • 512 to 1024 bits

Default value

  • 1024 bits

Exceptions

  • BlackBerry® Enterprise Server for Novell® GroupWise®

Minimum requirements

  • BlackBerry® Device Software 3.6
  • S/MIME Support Package for BlackBerry® smartphones 1.5

Rule introduction

  • BlackBerry® Enterprise Server 4.0 SP3

S/MIME Minimum Strong ECC Key Length IT policy rule

Description

This rule specifies the minimum ECC key size that a BlackBerry® device uses with S/MIME-protected email messages.

Possible values

  • 163 to 571 bits

Default value

  • 163 bits

Exceptions

  • BlackBerry® Enterprise Server for Novell® GroupWise®

Minimum requirements

  • BlackBerry® Device Software 3.6
  • S/MIME Support Package for BlackBerry® smartphones 1.5

Rule introduction

  • BlackBerry® Enterprise Server 4.0 SP3

S/MIME Minimum Strong RSA Key Length IT policy rule

Description

This rule specifies the minimum RSA® key size that a BlackBerry® device uses with S/MIME-protected email messages.

Possible values

  • 512 to 4096 bits

Default value

  • 1024 bits

Exceptions

  • BlackBerry® Enterprise Server for Novell® GroupWise®

Minimum requirements

  • BlackBerry® Device Software 3.6
  • S/MIME Support Package for BlackBerry® smartphones 1.5

Rule introduction

  • BlackBerry® Enterprise Server 4.0 SP3

S/MIME More All and Send Mode IT policy rule

Description

This rule specifies the mode that a BlackBerry® device uses to retrieve the complete text of an email message if a BlackBerry device user replies to or forwards the email message.

Possible values

  • Automatic
  • Manual
  • None

Default value

  • Manual

Minimum requirements

  • BlackBerry® Device Software 5.0

Rule introduction

  • BlackBerry® Enterprise Server 5.0 SP1

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