DATA INTEGRITY VERIFICATION

摘要

A system performs cryptographic operations utilizing information usable to verify validity of plaintext. To prevent providing information about a plaintext by providing the information usable to verify the validity of the plaintext, the system provides the information usable to verify validity of the plaintext to an entity on a condition that the entity is authorized to access the plaintext. The information usable to verify validity of the plaintext may be persisted in ciphertext along with the plaintext to enable the plaintext to be verified when decrypted.

主权项

1. A computer-implemented method, comprising:
determining information that can verify validity of plaintext; generating ciphertext by performing an encryption algorithm using input based at least in part on a cryptographic key, the plaintext, and the determined information that can verify validity of the plaintext, wherein the generated ciphertext is decryptable, by the cryptographic key, to obtain the plaintext and the information that can verify validity of the plaintext; and providing the ciphertext.