distcomp (version 1.3-3)

HEQueryCountWorker: Create a homomorphic computation query count worker object for use with master objects generated by HEQueryCountMaster()

Description

HEQueryCountWorker objects are worker objects at each site of a distributed query count model computation using homomorphic encryption

Super class

distcomp::QueryCountWorker -> HEQueryCountWorker

Public fields

pubkey

the master's public key visible to everyone

den

the denominator for rational arithmetic

Methods

Public methods

• HEQueryCountWorker$new()

• HEQueryCountWorker$setParams()

• HEQueryCountWorker$queryCount()

• HEQueryCountWorker$clone()

Inherited methods

• distcomp::QueryCountWorker$getStateful()
• distcomp::QueryCountWorker$kosher()

---

Method new()

Create a new HEQueryMaster object.

Usage

HEQueryCountWorker$new(
  defn,
  data,
  pubkey_bits = NULL,
  pubkey_n = NULL,
  den_bits = NULL
)

Arguments

defn

the computation definition

data

the data which is usually the list of sites

pubkey_bits

the number of bits in public key

pubkey_n

the n for the public key

den_bits

the number of bits in the denominator (power of 2) used in rational approximations

Returns

a new HEQueryMaster object

---

Method setParams()

Set some parameters for homomorphic computations

Usage

HEQueryCountWorker$setParams(pubkey_bits, pubkey_n, den_bits)

Arguments

pubkey_bits

the number of bits in public key

pubkey_n

the n for the public key

den_bits

the number of bits in the denominator (power of 2) used in rational approximations

---

Method queryCount()

Run the query count on local data and return the appropriate encrypted result to the party

Usage

HEQueryCountWorker$queryCount(partyNumber, token)

Arguments

partyNumber

the NCP party number (1 or 2)

token

a token to use for identifying parts of the same computation for NCP1 and NCP2

Returns

the count as a list of encrypted items with components int and frac

---

Method clone()

The objects of this class are cloneable with this method.

Usage

HEQueryCountWorker$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

See Also

HEQueryCountMaster() which goes hand-in-hand with this object