public final class XAesGcmParameters extends AeadParameters
XAesGcmKey| Modifier and Type | Class and Description |
|---|---|
static class |
XAesGcmParameters.Variant
Describes how the prefix is computed.
|
| Modifier and Type | Method and Description |
|---|---|
static XAesGcmParameters |
create(XAesGcmParameters.Variant variant,
int saltSizeBytes)
Creates a new
XAesGcmParameters object for generating new instances of XAesGcmKey. |
boolean |
equals(Object o) |
int |
getSaltSizeBytes() |
XAesGcmParameters.Variant |
getVariant()
Returns a variant object.
|
int |
hashCode() |
boolean |
hasIdRequirement()
Returns true if a key created with the parameters in this object has to have a certain ID when
it is in a keyset.
|
String |
toString() |
public static XAesGcmParameters create(XAesGcmParameters.Variant variant, int saltSizeBytes) throws GeneralSecurityException
XAesGcmParameters object for generating new instances of XAesGcmKey. The key size is 32 bytes and the tag size is 16 bytes. The IV size in bytes is
saltSizeBytes + 12.
create(Variant.NO_PREFIX, 12) returns XAesGcmParameters that follow the XAES-256-GCM specification.
variant - the variant of the X-AES-GCM key.saltSizeBytes - the size of the salt in bytes. Must be between 8 and 12 bytes.GeneralSecurityExceptionpublic XAesGcmParameters.Variant getVariant()
public int getSaltSizeBytes()
public boolean hasIdRequirement()
ParametersIn Tink, certain keys change their behavior depending on the key id (for example, an Aead object can prefix the ciphertext with the big endian encoding of the key id). If this is
the case, such a key should require a unique id in Key.getIdRequirementOrNull() and
return true here.
hasIdRequirement in class Parameters