You cannot see the key directly or use this key manually to encrypt or decrypt the data. SSE-S3 is the simplest method – the keys are managed and handled by AWS to encrypt the data you have selected. This process is transparent for end-users. When you need to get your data back, Amazon reads the encrypted data, decrypts the needed data on the Amazon server side, and then sends the unencrypted data to you over the network. You send raw (unencrypted) data to AWS and then data is encrypted on the AWS side when recorded on the cloud storage. All heavy encryption operations are performed on the server side in the AWS cloud. Server-Side Encryption (SSE) is the simplest data encryption option. Let’s look at the available AWS encryption methods for S3 objects stored in a bucket. You should define which encryption method to use after answering the following questions: Is S3 encrypted? By default, data stored in an S3 bucket is not encrypted, but you can configure the AWS S3 encryption settings. How does S3 encryption work? Amazon provides several encryption types for data stored in Amazon S3. Read more about it in the white paper EU General Data Protection Regulation. What to do in this case? As you may already know, the personal data of European citizens is protected by the General Data Protection Regulation (GDPR). Imagine a situation in which the USA requests data from a European Amazon customer for investigation. If a user’s data is encrypted and Amazon doesn’t have the encryption keys, the user’s data cannot be provided to third party organizations or persons (even if the encrypted data is provided, it is a useless and unreadable set of bits). However, Amazon must respect the license agreement and laws of other countries (countries whose citizens are Amazon customers) and a conflict can occur. Sometimes a country can request data be submitted for an investigation if a client or an organization is suspected of violating the law. Amazon stores data of users from different countries. However, there is another reason for why data stored in the cloud should be encrypted. Encryption increases the level of security and privacy. The first reason for this recommendation is security. The main types of cryptography are symmetric-key cryptography and asymmetric-key cryptography.Īmazon recommends the use of S3 encryption when storing data in Amazon S3 buckets. Different encryption algorithms can be used, for example, AES, 3DES, RSA, Blowfish, and so on. Modern encryption algorithms make it difficult and almost impossible to crack a long encryption key or a complex password. If an unauthorized person gets access to the encrypted data, the data is unreadable without the key or password. Data encryption is used to protect digital data confidentiality even if an unauthorized person gains logical or physical access to that data. The encrypted data can then be accessed by using the correct password or encryption (decryption) key. Data is encoded using a password or an encryption (cypher) key and special encryption algorithms. About Data Encryptionĭata encryption is a process for securing data by encoding information. This blog post covers Amazon S3 encryption including encryption types and configuration. You can encrypt Amazon S3 buckets and the files stored in the buckets by using AWS encryption options. These cloud storage options include EBS volumes, a high-performance storage for virtual machines (instances), and Amazon S3, a cloud storage service developed to store backups, archives, application files, and other data. Nobody wants their data to be lost, corrupted or stolen.įor this reason, Amazon provides encryption options for storing data on its different cloud storage services. Data is crucial for every company and every user. Encryption reduces the risk of data interception over the network. Amazon provides a high level of security, including an encrypted network connection used to access files and services. These services are called Amazon Web Services (AWS). Amazon is one of the top players providing public cloud services on the market. Cloud storage services are popular today due to their great reliability and high availability, two very important factors for business. Many companies store data in cloud storage. By Michael Bose How to Secure S3 Objects with Amazon S3 Encryption
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