Multiple-channel Authentication


Multiple-channel Authentication (MCA) is a method of Multi-Factor Authentication where one or more the Authentication Factors involved are communicated over separate communication channels or protocols.

The concept is that an Attacker would be challenged to determine:

  • which channels are being used
  • the timing differences of the separate channels would be more difficult to intercept
  • requires knowledge on determining the weakness of each channel
This implies for an attacker to gain access to the user's account, all involved channels must be compromised, which requires a greater Attack Effort

Generally, Multiple-channel Authentication implies a higher Level Of Assurance for Authentication.

Multiple-channel Authentication and Multi-Factor Authentication#

Generally, Multiple-channel Authentication and Multi-Factor Authentication is stronger than either of the separate practices.

More Information#

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