Which octet length is standard for Vault master keys?

The standard octet length for Vault master keys is 32 bytes. This length is significant because it allows for the generation of secure keys that are resistant to brute-force attacks and provide a high level of entropy. In cryptographic terms, a key that is 32 bytes long (or 256 bits) aligns with the strength of advanced encryption standards, ensuring that the keys can effectively safeguard sensitive data managed by Vault.

Moreover, this length provides a sufficient level of complexity and strength in key generation, which is vital in maintaining the security and integrity of the Vault's operations. The use of a 32-byte master key is also aligned with industry best practices for key management, as it balances security with performance considerations.

Understanding this aspect of Vault's design is essential for practitioners who are implementing and managing secure environments within the Vault ecosystem.