Protecting Data in AWS: Encryption and Key Management - Beinex

Protecting Data in AWS: Encryption and Key Management

Maintaining data security is crucial for organisations, as data is considered a valuable asset in the current digital era. Consequently, it is vital to prioritise the protection of data. AWS offers an essential feature for ensuring data security - encryption. This blog post will discuss how encryption and key management can be used to secure data on AWS.
24 Apr 2023

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    Why Encryption is Important

    Encryption is a security technique that converts data into a format that is unreadable by unauthorised individuals. It is particularly crucial when it comes to protecting sensitive information such as personal data, bank records, and trade secrets. By encrypting data, even if an attacker accesses it, they cannot read it without the correct decryption key.

    AWS provides various encryption options to protect data:

    1. Server-side Encryption
    2. Client-side Encryption
    3. Key Management
    1. Server-Side Encryption

    Data at rest can be encrypted in AWS by using server-side encryption. Server-side encryption is available for AWS services, including Amazon S3, Amazon EBS, Amazon RDS, and Amazon Redshift.

    When you utilise server-side encryption, AWS encrypts the data before putting it on a disc. The security of your information is guaranteed because AWS also manages the encryption keys required to encrypt and decrypt data.

    2. Client-side Encryption

    Data can be encrypted on the client side before being uploaded to AWS. Client-side encryption adds a layer of security by allowing you to manage the encryption keys used to encrypt and decrypt your data.

    Client-side encryption is available for AWS services, including Amazon S3, Amazon EBS, and Amazon RDS. Client-side encryption requires additional administration and security measures because it forces users to control the encryption keys directly.

    3. Key Management

    Key management is the process of generating, storing, and controlling encryption keys. AWS provides critical management services, including AWS CloudHSM and Key Management Service (KMS).

    You can easily create and manage the encryption keys to secure data using AWS Key Management Service (KMS), a managed service. Some AWS services, such as Amazon S3, Amazon EBS, and Amazon RDS, are compatible with AWS KMS.

    A hardware security module (HSM) called AWS CloudHSM offers secure key management and storage. AWS services, including Amazon S3, Amazon EBS, and Amazon RDS, can be used with AWS CloudHSM.

    Best Practices for Protecting Data in AWS

    Use these best measures to protect your data in AWS:

    1. Encrypt sensitive data: Use either server-side or client-side encryption to encrypt all sensitive data. Robust encryption methods like Advanced Encryption Standard (AES) should exist with 256-bit keys. The Amazon Web Services (AWS) KMS service can generate and manage encryption keys.

    2. Utilise AWS CloudHSM: For other key management and security, use AWS CloudHSM.

    3. Set up multi-factor authentication: Multi-factor authentication adds security to AWS accounts and services (MFA).


    Amazon Web Services (AWS) is a comprehensive cloud computing platform that enables millions of customers worldwide to deploy and scale their services on the cloud while enjoying cost savings upfront. Data security is a critical concern for any organisation, and AWS provides several services to help address this issue. Encryption plays a vital role in data protection, and it is essential to follow best practices to safeguard the security and safety of data on AWS.

    Beinex is an AWS consulting partner, and we empower customers to host their BI solutions and much more on the cloud. Our cloud migration experts bring in best-in-class stability and reliability by understanding your business strategy and working closely with you to deploy AWS infrastructure as a service.