The value of aluMcPeerFwEncryptionSpiEncrKey2 specifies the key used for the encryption algorithm defined by the aluMcPeerFwEncryptionEncrAlg. The length of the key must match the length required by the encryption algorithm. If a key of another length is set, the request will fail with an 'inconsistentValue' error. There is no default value for aluMcPeerFwEncryptionSpiEncrKey2 and this is a required object when setting aluMcPeerFwEncryptionSpi2 to none zero value. If aluMcPeerFwEncryptionSpiEncrKey2 is not specified when aluMcPeerFwEncryptionSpi2 is set to none zero value, the request will fail with an 'inconsistentValue' error. Any GET request on this object returns an empty string.