Amazon Comprehend is a natural language processing (NLP) service that uses machine learning to discover insights and relationships in text. Starting today, customers can enable the service to work with encrypted data in S3, using the AWS Key Management Service (KMS). AWS KMS makes it easy for you to create and manage keys and control the use of encryption across a wide range of AWS services and in your applications. AWS KMS is a secure and resilient service that uses FIPS 140-2 validated hardware security modules to protect your keys. AWS KMS is integrated with AWS CloudTrail to provide you with logs of all key usage to help meet your regulatory and compliance needs. The feature can be configured via the AWS Management console or the SDK and supports Amazon Comprehend asynchronous training and inference jobs.
Amazon Comprehend is fully managed and continuously trained by AWS. The service makes it easy to add text analytics to your applications by removing any skills or steps required to build and run NLP models. Get started with Amazon Comprehend by using the console or the API.
from What’s New https://aws.amazon.com/about-aws/whats-new/2019/03/amazon-comprehend-now-supports-aws-kms-encryption/