Patent ID: 11909868
Assignee: IRONCORE LABS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 12:
13. A method comprising:
computing a first transform key from a first user to a first group;
computing second transform keys from the first group to users of the first group, wherein a second user is a member of the first group of users, and a one of the second transform keys that is from the first group to the second user makes the second user a member of the first group;
providing the first group of users access to encrypted data of the first user via the first transform key;
augmenting a first public key of the first user or first group via an augmentation factor to form an augmented first public key such that data encrypted to the augmented first public key cannot be decrypted by the first user, by the first group, or by a key storage system; and
revoking:
an access of the second user to the encrypted data of the first user by deleting the one of the second transform keys that is from the first group to the second user; or
an access of the first group to the encrypted data of the first user by deleting the first transform key.