Which statement about handling keying material is true under TPI?

• A. Only one person is needed for storage
• B. Keying material can be stored anywhere
• C. At least two authorized personnel must be present
• D. Training is optional for handling

Answer: (C)

The statement regarding handling keying material under TPI (Two-Person Integrity) that is true is that at least two authorized personnel must be present. This requirement is established to enhance security measures related to sensitive information and materials, particularly cryptographic keying material. The rationale behind this is to deter unauthorized access and manipulation by requiring the presence of multiple individuals to manage or access the keying material. By ensuring that no single individual has complete control, the risk of compromise is significantly reduced.

In the context of handling cryptographic materials, having two authorized personnel present also allows for oversight and verification, which adds another layer of security. This practice is crucial in maintaining the integrity of the security procedures and ensuring that keying material is managed according to established protocols.

The other statements do not align with the principles of TPI. For instance, stating that only one person is needed for storage undermines the fundamental intent of TPI and could lead to vulnerabilities. Similarly, the idea that keying material can be stored anywhere contradicts the strict handling and storage protocols necessary for preserving the confidentiality and integrity of such sensitive information. Lastly, making training optional for handling keying material would jeopardize the effectiveness of security measures, as proper training is essential to understanding the protocols and