Update Attributes

Goal:

Add, modify, or revoke attributes while preserving identity continuity.

Inputs:- identity_id

• Authenticated user session (Control Key)
• Attribute changes (add / update / revoke)
• Optional external attestations

Steps: Current attributes_root, keys_root, policies_root.

Apply operations

• For each operation, update attribute leaves and encrypted values in the Vault.

1. User (or issuer) submits attribute changes to the Vault.
2. Vault verifies issuer permissions where relevant.
3. Vault updates the Attribute Tree leaves.
4. New attributes_root is computed.
5. vault_state_root is updated (versioning, timestamps).
6. New identity_commitment is derived.
7. Previous commitments are stored in identity_history.

Rebuild attributes_root

attributes_root_1 = MerkleRoot(updated_attribute_leaves)

Compute new commitment