Encrypted Speech Retrieval Scheme Based on Multiuser Searchable Encryption in Cloud Storage

Table 3

The storage and communication overhead.

Storage					Communication
Secure index	Search trapdoor	Public parameter	Attribute key	Ciphertext CT
2n(l + 3)|Zp|	2n(l + 3)|Zp|	6|G0| + |GT|	(2|Lij| + 3)|G0| + |Zp|	|GT| +( 3l + 2)|G0|	2l|Zp|