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Weak Digest Algorithms IT policy rule

Description

This rule specifies the digest algorithms that a BlackBerry® device considers weak. When a BlackBerry device sends email messages, it uses the algorithms that it considers strong to digitally sign the messages. A BlackBerry device uses the list of weak digest algorithms to verify the following data:

  • algorithms that are used to digitally sign messages that a BlackBerry device receives are strong enough
  • certificate chains for the certificates that are used to sign messages that a BlackBerry device receives are strong enough

Default value

By default, no algorithms are specified as weak.

Usage

Specify a list of algorithms that a BlackBerry device considers weak. This prevents a user from sending an S/MIME-encrypted or PGP® encrypted message using a certificate or key that has a corresponding public key that is weak. You cannot specify SHA-384 and SHA-512 as weak algorithms.

Minimum requirements

  • Java® based BlackBerry device
  • BlackBerry® Device Software version 4.3
  • BlackBerry® Enterprise Server version 4.1 SP5

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