AWS Developer Blog

Tag: Java

AWS SDK for Java Office Hour

The AWS SDKs and Tools team invites you to the first-ever online office hour hosted by the maintainers of the AWS SDK for Java and AWS Toolkit for Eclipse. It will be held via Google Hangouts from 10:30-11:30am PDT (UTC -7:00) on Thursday 6/18. If you don’t have one already, you will be required to […]

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Generating Amazon S3 Pre-signed URLs with SSE-C (Part 4)

In Part 3 of this blog, we demonstrated how you can generate and consume pre-signed URLs using SSE-S3. In this blog, I will provide code examples to show how you can generate and consume pre-signed URLs using one of the more advanced options, namely SSE-C (server-side encryption with customer-provided encryption keys). The code samples assume the […]

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Generating Amazon S3 Pre-signed URLs with SSE-S3 (Part 3)

As mentioned in Part 1 and Part 2 of this blog, there are fundamentally four ways you can generate Amazon S3 pre-signed URLs using server-side encryption (SSE). We demonstrated how you could do so with SSE-KMS (server-side encryption with AWS Key Management Service). In this blog, I will provide further sample code that shows how […]

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DynamoDB XSpec API

One of the most powerful tools for accessing Amazon DynamoDB is the use of a DynamoDB domain-specific language (DSL) called expressions. If you look closely, you will find the support of DynamoDB expressions everywhere. For instance, you can access the attributes of an item using projection expressions. You can query or scan items using filter […]

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Generating Amazon S3 Pre-signed URLs with SSE-KMS (Part 2)

To continue from the previous blog, I will provide specific code examples that show how you can generate and consume pre-signed URLs using server-side encryption with AWS Key Management Service (SSE-KMS). A pre-requisite to this option is that you must be using Signature Version 4 (SigV4). You can enable SigV4 in the AWS SDK for […]

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Storing JSON documents in Amazon DynamoDB tables

DynamoDBMapper is a high-level abstraction layer in the AWS SDK for Java that allows you to transform java objects into items in Amazon DynamoDB tables and vice versa. All you need to do is annotate your java class in a few places, and the mapper takes care of getting the objects in and out of […]

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Amazon S3 Client-side Crypto Meta Information

Are you curious about how the Amazon S3 Encryption Java client makes use of meta information to support client-side encryption?  Have you ever wondered how you can write code in other languages that can encrypt/decrypt S3 objects in a format that is compatible with the AWS SDK for Java, or an AWS SDK for another […]

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