Doubly-encrypted secret parts allowing for assembly of a secret using a subset of the doubly-encrypted secret parts

A system comprising:

• at least one processor;
• and
• at least one memory communicatively coupled to the at least one processor;
• wherein the at least one processor is configured to:
• encrypt each corresponding secret part of at least one set of secret parts into a corresponding singly-encrypted secret part;
• encrypt each corresponding singly-encrypted secret part into a corresponding doubly-encrypted secret part using a corresponding at least one public key, the corresponding at least one public key belonging to a corresponding one of at least one public/private keypair;
• wherein two or more secret parts of the at least one set of secret parts are used to reconstruct a secret;
• decrypt at least one doubly-encrypted secret part into at least one singly-encrypted secret part using a corresponding at least one private key, the corresponding at least one private key belonging to a corresponding public/private keypair of the at least one public/private keypair;
• and
• re-encrypt each corresponding singly-encrypted part of the at least one singly-encrypted secret part using a corresponding second public key, the corresponding second public key belonging to a second public/private keypair.

A system comprising:

• at least one processor;
• and
• at least one memory communicatively coupled to the at least one processor;
• wherein the at least one processor is configured to:
• encrypt each corresponding secret part of at least one set of secret parts into a corresponding singly-encrypted secret part;
• encrypt each corresponding singly-encrypted secret part into a corresponding doubly-encrypted secret part using a corresponding at least one public key, the corresponding at least one public key belonging to a corresponding one of at least one public/private keypair;
• wherein two or more secret parts of the at least one set of secret parts are used to reconstruct a secret;
• receive a plurality of doubly-encrypted secret parts;
• decrypt each corresponding doubly-encrypted secret part into the corresponding singly-encrypted secret part using a corresponding private key belonging to the corresponding one of the at least one public/private keypair;
• decrypt each corresponding singly-encrypted secret part into a corresponding secret part of a plurality of corresponding secret parts;
• and
• reconstruct the secret from a quantity of the plurality of corresponding secret parts, wherein the quantity is a second subset of a total number of secret parts previously created from the secret.

A system comprising:

• at least one processor;
• and
• at least one memory communicatively coupled to the at least one processor;
• wherein the at least one processor is configured to:
• encrypt each corresponding secret part of at least one set of secret parts into a corresponding singly-encrypted secret part;
• encrypt each corresponding singly-encrypted secret part into a corresponding doubly-encrypted secret part using a corresponding at least one public key, the corresponding at least one public key belonging to a corresponding one of at least one public/private keypair;
• wherein each doubly-encrypted secret part is distributed to a respective part holder of a plurality of part holders;
• wherein two or more doubly-encrypted secret parts are received from two or more part holders of the plurality of part holders;
• reconstruct a secret from the two or more doubly-encrypted secret parts, wherein the secret is a symmetric encryption key;
• and
• perform an action with the symmetric encryption key.