Threat actors can leverage electromagnetic emanations to obtain sensitive information. The electromagnetic radiations attain importance when they are hardware generated emissions, especially emissions from the cryptographic module. Electromagnetic leakage attacks have been shown to be more successful than power analysis attacks on chicards. If proper protections are not in place on the spacecraft, the circuitry is exposed and hence leads to stronger emanations of EM radiations. If the circuitry is exposed, it provides an easier environment to study the electromagnetic emanations from each individual component.
| ID | Name | Description | NIST Rev5 | D3FEND | ISO 27001 | |
| CM0003 | TEMPEST | The spacecraft should protect system components, associated data communications, and communication buses in accordance with TEMPEST controls to prevent side channel / proximity attacks. Encompass the spacecraft critical components with a casing/shielding so as to prevent access to the individual critical components. | PE-19 PE-19(1) PE-21 | A.7.5 A.7.8 A.8.12 | ||
| CM0060 | Secret Shares | Use of secret shares in which the original computation is divided probabilistically such that the power subset of shares is statistically independent. One of the major drawbacks of this solution is the increase in the power consumption due to the number of operations that are almost doubled. | PE-19 PE-19(1) | A.7.5 A.7.8 A.8.12 | ||
| CM0061 | Power Masking | Masking is a scheme in which the intermediate variable is not dependent on an easily accessible subset of secret key. This results in making it impossible to deduce the secret key with partial information gathered through electromagnetic leakage. | PE-19 PE-19(1) | A.7.5 A.7.8 A.8.12 | ||