Label encryption

1. Mainstream encryption technology:

Symmetric encryption: The tag and reader use the same key (such as AES-128 algorithm), making the encryption and decryption process efficient and suitable for scenarios with high speed requirements (such as fast scanning of retail products), but secure storage and distribution of the key are necessary.

Asymmetric encryption: using public key (public) and private key (private) pairing (such as RSA algorithm), the tag encrypts data with the public key, and only the reader/writer holding the private key can decrypt it, with higher security. It is commonly used in sensitive data scenarios such as healthcare and finance, but the encryption speed is relatively slow.

Data desensitization: Partially shield or replace non essential sensitive information within the label (such as the patient's complete medical record number), retaining only key identification fields (such as the desensitized 'medical record number XXX ***** 123'), balancing security and usability.

2. Core application scenarios:

Medical field: Encrypt the name, medical history, allergy history, and other data inside the patient's wristband tag, which can only be decrypted by authorized medical staff readers to prevent patient privacy leakage.

In the field of finance/valuable items: Encrypt traceability information and value data in jewelry and high-end electronic product labels to avoid illegal copying of labels for repackaging or forgery.

In the field of enterprise classified assets: encrypting office equipment, asset numbers and classified levels in research and development sample labels to prevent external personnel from reading information and protect commercial secrets.

3. Key guarantee points:

Key management: By regularly updating keys and managing keys based on permissions (such as different departments using different keys), it is possible to avoid a single key leakage that could lead to overall security failure.

Tag anti cloning: Some high-end encrypted tags have built-in unique physical identifiers (such as PUF physical unclonable function), so even if the data is cracked, it is impossible to replicate the exact same tag, preventing forgery from the source.