Enhancement the Cobl Kafak SDK by incorporating Client-Side Field Level Encryption (CSFLE).

Key Benefits of CSFLE
Enhanced Data Privacy and Security:

CSFLE encrypts and decrypts individual fields within data, ensuring that sensitive information is accessible only to authorized stakeholders.
Even if unauthorized users gain access to the data, they would only see encrypted values, which are meaningless without the corresponding decryption keys.
Targeted and Flexible Data Security:

Applications can selectively encrypt only the most sensitive fields, leaving other data in plaintext for operational efficiency.
Additionally, this approach supports the use of KSQL, enhancing flexibility in data processing.
Complete Access Control:

CSFLE ensures that only authorized users and applications can access sensitive data, even preventing plaintext access by administrators or other privileged users.
Cost Efficiency:

By eliminating the need to create multiple copies of data for access control, CSFLE reduces infrastructure and operational costs.
Regulatory Compliance:

CSFLE helps meet compliance requirements for protecting sensitive data and is particularly useful when sharing data
How CSFLE Works
Encryption and decryption processes occur on the client side. Sensitive data is encrypted before being stored or transmitted and decrypted only when accessed by authorized users, producers, or consumers. This ensures that sensitive information remains protected throughout its lifecycle.

The Open source C++ serdes library which supports CSFLE, is available here: https://github.com/confluentinc/libschemaregistry