S3EncryptionClientUtilities (Amazon S3 Encryption Client 4.0.0 API)

java.lang.Object
- software.amazon.encryption.s3.S3EncryptionClientUtilities

```
public class S3EncryptionClientUtilities
extends Object
```
Utility class containing shared constants and helper methods for the S3 Encryption Client and S3 Async Encryption Client.

Field Summary

Fields
Modifier and Type	Field	Description
`static long`	`DEFAULT_BUFFER_SIZE_BYTES`	The Default Buffer Size for Safe authentication is set to 64MiB.
`static String`	`DEFAULT_INSTRUCTION_FILE_SUFFIX`	The default suffix appended to object keys when creating instruction files.
`static long`	`MAX_ALLOWED_BUFFER_SIZE_BYTES`	The maximum allowed buffer size in bytes for safe authentication mode.
`static long`	`MIN_ALLOWED_BUFFER_SIZE_BYTES`	The minimum allowed buffer size in bytes for safe authentication mode.

Constructor Summary

Constructors
Constructor Description

S3EncryptionClientUtilities()

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DEFAULT_INSTRUCTION_FILE_SUFFIX
```
public static final String DEFAULT_INSTRUCTION_FILE_SUFFIX
```
    The default suffix appended to object keys when creating instruction files. Instruction files store encryption metadata separately from the encrypted object.
    
    See Also:
    
    Constant Field Values
  - MIN_ALLOWED_BUFFER_SIZE_BYTES
```
public static final long MIN_ALLOWED_BUFFER_SIZE_BYTES
```
    The minimum allowed buffer size in bytes for safe authentication mode. This is based on the cipher block size of the AES-256-GCM algorithm.
  - MAX_ALLOWED_BUFFER_SIZE_BYTES
```
public static final long MAX_ALLOWED_BUFFER_SIZE_BYTES
```
    The maximum allowed buffer size in bytes for safe authentication mode. This is based on the maximum content length supported by the AES-256-GCM algorithm.
  - DEFAULT_BUFFER_SIZE_BYTES
```
public static final long DEFAULT_BUFFER_SIZE_BYTES
```
    The Default Buffer Size for Safe authentication is set to 64MiB.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - S3EncryptionClientUtilities
```
public S3EncryptionClientUtilities()
```