Final answer:
The statement is false because a P7B certificate format is used for sharing public certificates, not private keys. The correct format for exporting private keys is PKCS#12 or PFX, which includes the certificate chain and private key.
Step-by-step explanation:
The statement "P7B is the certificate format used to export private keys" is false. The P7B certificate format (also known as PKCS#7 or P7B) is mainly used for sharing public certificates, not private keys. Files in this format typically have extensions like .p7b or .p7c and contain only certificates and chain certificates, but do not include the private key.
When it comes to exporting private keys along with their corresponding public certificates, other formats are used, such as PKCS#12 or PFX. These formats allow for secure storage and transfer of the full certificate chain along with the private key and are typically protected with a password to ensure security.
The correct choice for transferring private keys would be to use formats like PKCS#12/PFX, which are designed for that purpose. If the goal is to distribute only the public part of a certificate, without exposing the private key, then P7B is a suitable format.