I was reading through the patents Cloudflare has registered and found Patent 10484176.
The description says:
A server receives a piece of data for encryption. The server encrypts the piece of data such that no single key can decrypt the encrypted piece of data and any combination of a first multiple of unique keys taken a second multiple at a time are capable of decrypting the encrypted piece of data. Each of the first multiple of unique keys is tied to account credentials of a different user. The second multiple is less than or equal to the first multiple. The encrypted piece of data is returned.
FIG. 1 illustrates an exemplary system for encrypting data in such a way that no single key can decrypt the encrypted data and any K-combination of N unique keys (where N is greater than 1 and K is less than or equal to N) are capable of decrypting the encrypted piece of data according to one embodiment;
That sounds very similar to the Key Splitting technique Vault features by implementing Shamir’s Secret Sharing
Is that something Vault users should be worried about?