Package com.google.crypto.tink.aead

Class AesGcmKeyManager

java.lang.Object

com.google.crypto.tink.aead.AesGcmKeyManager

public final class AesGcmKeyManager
extends java.lang.Object

This key manager generates new AesGcmKey keys and produces new instances of AesGcmJce.

Method Summary

Modifier and Type	Method	Description
static KeyTemplate	aes128GcmTemplate()
static KeyTemplate	aes256GcmTemplate()
static KeyTemplate	rawAes128GcmTemplate()
static KeyTemplate	rawAes256GcmTemplate()
static void	register(boolean newKeyAllowed)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

register

public static void register(boolean newKeyAllowed)
                     throws java.security.GeneralSecurityException

Throws:

java.security.GeneralSecurityException

aes128GcmTemplate

public static final KeyTemplate aes128GcmTemplate()

Returns:

a KeyTemplate that generates new instances of AES-GCM with the following parameters:

• Key size: 16 bytes
• Prefix type: KeyTemplate.OutputPrefixType.TINK

On Android KitKat (API level 19), the Aead instance generated by this key template does not support associated data. It might not work at all in older versions.

rawAes128GcmTemplate

public static final KeyTemplate rawAes128GcmTemplate()

Returns:

a KeyTemplate that generates new instances of AES-GCM with the following parameters:

• Key size: 16 bytes
• Prefix type: KeyTemplate.OutputPrefixType.RAW (no prefix)

Keys generated from this template should create ciphertexts compatible with other libraries.

On Android KitKat (API level 19), the Aead instance generated by this key template does not support associated data. It might not work at all in older versions.

aes256GcmTemplate

public static final KeyTemplate aes256GcmTemplate()

Returns:

a KeyTemplate that generates new instances of AES-GCM with the following parameters:

• Key size: 32 bytes
• Prefix type: KeyTemplate.OutputPrefixType.TINK

On Android KitKat (API level 19), the Aead instance generated by this key template does not support associated data. It might not work at all in older versions.

rawAes256GcmTemplate

public static final KeyTemplate rawAes256GcmTemplate()

Returns:

a KeyTemplate that generates new instances of AES-GCM with the following parameters:

• Key size: 32 bytes
• Prefix type: KeyTemplate.OutputPrefixType.RAW (no prefix)

Keys generated from this template should create ciphertexts compatible with other libraries.

On Android KitKat (API level 19), the Aead instance generated by this key template does not support associated data. It might not work at all in older versions.