NIAP: Assurance Continuity
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Assurance Continuity - Samsung Galaxy S7 on Android 6 Update

Date of Maintenance Completion:  2017.04.11

Product Type:    Mobility

Conformance Claim:  Protection Profile Compliant

PP Identifier:    Protection Profile for Mobile Device Fundamentals Version 2.0

Original Evaluated TOE:  2016.05.25 - Samsung Galaxy S7 Devices on Android 6

CC Certificate [PDF] Validation Report [PDF] Assurance Activity [PDF]

Administrative Guide [PDF]

Administrative Guide [PDF]

Please note:  The above files are for the Original Evaluated TOE.  Consequently, they do not refer to this maintained version, although they apply to the maintained version. 

Security Target [PDF] * Assurance Continuity Maintenance Report [PDF]

Please note:  This serves as an addendum to the VR for the Original Evaluated TOE. 

* This is the Security Target (ST) associated with the latest Maintenance Release.  To view previous STs for this TOE, click here.

Readers are reminded that the certification of this product (TOE) is the result of maintenance, rather than an actual re-evaluation of the product.  Maintenance only considers the affect of TOE changes on the assurance baseline (i.e. the original evaluated TOE); maintenance is not intended to provide assurance in regard to the resistance of the TOE to new vulnerabilities or attack methods discovered since the date of the initial certificate.  Such assurance can only be gained through re-evaluation. 

Using a security impact analysis of the changes made to the TOE, which was provided by the developer, the CCEVS has determined that the impact of changes on the TOE are considered minor and that independent evaluator analysis was not necessary.  A summary of the results can be found in the Maintenance Report, which is written in relation to the product's original validation report and Security Target.  Readers are therefore reminded to read the Security Target, Validation Report, and the Assurance Maintenance Report to fully understand the meaning of what a maintained certificate represents. 

Product Description

It was determined after the evaluation that the Qualcomm hardware accelerator did not actually provide a 256-bit key for the ODE encryption of the internal storage media. The AES XTS encryption provided by Qualcomm in their ICE (In-line Cryptographic Engine) module only provided a 128-bit key and a 128-bit tweak value. This is not applicable on any other model included in the evaluation and is specific to the chipset implementation at the time of the device launch.

To properly clarify this position, the requirements FCS_CKM_EXT.2 and FDP_DAR_EXT.1 have been updated to show that 128-bit AES keys may be generated and used. The TSS descriptions have been updated to reflect this with a specific notation in the FDP_DAR_EXT.1 stating that the Qualcomm versions of the S7/S7 Edge/S7 Active use AES-128 XTS for ODE while all other devices use AES-256 XTS for ODE.

Vendor Information

Samsung Electronics Co., Ltd.
Brian Wood
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