com.google.crypto.tink.aead

Class PredefinedAeadParameters

java.lang.Object

com.google.crypto.tink.aead.PredefinedAeadParameters

public final class PredefinedAeadParameters
extends Object

Pre-generated Parameters objects for creating new instances of AeadKey.

Note: if you want to keep dependencies small, consider inlining the constants here.

Field Summary

Fields

Modifier and Type	Field and Description
static AesCtrHmacAeadParameters	AES128_CTR_HMAC_SHA256 A Parameters object for generating new instances of AesCtrHmacAeadKey with the following parameters: AES key size: 16 bytes AES CTR IV size: 16 byte HMAC key size: 32 bytes HMAC tag size: 16 bytes HMAC hash function: SHA256
static AesEaxParameters	AES128_EAX A Parameters object for generating new instances of AesEaxKey with the following parameters: Key size: 16 bytes IV size: 16 bytes
static AesGcmParameters	AES128_GCM A Parameters object for generating new instances of AesGcmKey with the following parameters: Key size: 16 bytes
static AesCtrHmacAeadParameters	AES256_CTR_HMAC_SHA256 A Parameters object for generating new instances of AesCtrHmacAeadKey with the following parameters: AES key size: 32 bytes AES CTR IV size: 16 byte HMAC key size: 32 bytes HMAC tag size: 32 bytes HMAC hash function: SHA256
static AesEaxParameters	AES256_EAX A Parameters object for generating new instances of AesEaxKey with the following parameters: Key size: 32 bytes IV size: 16 bytes
static AesGcmParameters	AES256_GCM A Parameters object for generating new instances of AesGcmKey with the following parameters: Key size: 32 bytes
static ChaCha20Poly1305Parameters	CHACHA20_POLY1305 A Parameters object that generates new instances of ChaCha20Poly1305Key.
static XAesGcmParameters	X_AES_GCM_8_BYTE_SALT_NO_PREFIX Deprecated. Use XAES_256_GCM_160_BIT_NONCE_NO_PREFIX instead.
static XAesGcmParameters	XAES_256_GCM_160_BIT_NONCE_NO_PREFIX A Parameters object for generating new instances of XAesGcmKey.
static XAesGcmParameters	XAES_256_GCM_192_BIT_NONCE A Parameters object for generating new instances of XAesGcmKey.
static XAesGcmParameters	XAES_256_GCM_192_BIT_NONCE_NO_PREFIX A Parameters object for generating new instances of XAesGcmKey.
static XChaCha20Poly1305Parameters	XCHACHA20_POLY1305 A Parameters object that generates new instances of XChaCha20Poly1305Key.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

AES128_GCM

public static final AesGcmParameters AES128_GCM

A Parameters object for generating new instances of AesGcmKey with the following parameters:

• Key size: 16 bytes

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.

AES256_GCM

public static final AesGcmParameters AES256_GCM

A Parameters object for generating new instances of AesGcmKey with the following parameters:

• Key size: 32 bytes

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.

AES128_EAX

public static final AesEaxParameters AES128_EAX

A Parameters object for generating new instances of AesEaxKey with the following parameters:

• Key size: 16 bytes
• IV size: 16 bytes

AES256_EAX

public static final AesEaxParameters AES256_EAX

A Parameters object for generating new instances of AesEaxKey with the following parameters:

• Key size: 32 bytes
• IV size: 16 bytes

AES128_CTR_HMAC_SHA256

public static final AesCtrHmacAeadParameters AES128_CTR_HMAC_SHA256

A Parameters object for generating new instances of AesCtrHmacAeadKey with the following parameters:

• AES key size: 16 bytes
• AES CTR IV size: 16 byte
• HMAC key size: 32 bytes
• HMAC tag size: 16 bytes
• HMAC hash function: SHA256

AES256_CTR_HMAC_SHA256

public static final AesCtrHmacAeadParameters AES256_CTR_HMAC_SHA256

A Parameters object for generating new instances of AesCtrHmacAeadKey with the following parameters:

• AES key size: 32 bytes
• AES CTR IV size: 16 byte
• HMAC key size: 32 bytes
• HMAC tag size: 32 bytes
• HMAC hash function: SHA256

CHACHA20_POLY1305

public static final ChaCha20Poly1305Parameters CHACHA20_POLY1305

A Parameters object that generates new instances of ChaCha20Poly1305Key.

XCHACHA20_POLY1305

public static final XChaCha20Poly1305Parameters XCHACHA20_POLY1305

A Parameters object that generates new instances of XChaCha20Poly1305Key.

XAES_256_GCM_192_BIT_NONCE

public static final XAesGcmParameters XAES_256_GCM_192_BIT_NONCE

A Parameters object for generating new instances of XAesGcmKey. This follows the algorithm defined in the XAES-256-GCM specification

• Key size: 32 bytes
• Nonce size: 24 bytes (12 bytes of salt, 12 bytes of AES-GCM IV)
• Salt size: 12 bytes
• Tag size: 16 bytes
• Output prefix: TINK

XAES_256_GCM_192_BIT_NONCE_NO_PREFIX

public static final XAesGcmParameters XAES_256_GCM_192_BIT_NONCE_NO_PREFIX

A Parameters object for generating new instances of XAesGcmKey. This follows the algorithm defined in the XAES-256-GCM specification

• Key size: 32 bytes
• Nonce size: 24 bytes (12 bytes of salt, 12 bytes of AES-GCM IV)
• Salt size: 12 bytes
• Tag size: 16 bytes
• Output prefix: NO_PREFIX

XAES_256_GCM_160_BIT_NONCE_NO_PREFIX

public static final XAesGcmParameters XAES_256_GCM_160_BIT_NONCE_NO_PREFIX

A Parameters object for generating new instances of XAesGcmKey. This follows the algorithm defined in the XAES-256-GCM specification, except that the nonce size is 160 bits instead of 192 bits. The remaining 4 bytes are padded with zeros.

• Key size: 32 bytes
• Nonce size: 20 bytes (8 bytes of salt, 12 bytes of AES-GCM IV)
• Salt size: 8 bytes
• Tag size: 16 bytes
• Output prefix: NO_PREFIX

X_AES_GCM_8_BYTE_SALT_NO_PREFIX

@Deprecated
public static final XAesGcmParameters X_AES_GCM_8_BYTE_SALT_NO_PREFIX

Deprecated. Use XAES_256_GCM_160_BIT_NONCE_NO_PREFIX instead.