Construct a Paillier public key with the given modulus.

Construct a Paillier public key with the given modulus.

Construct a Paillier public key with the given modulus.

Value

An R6::R6Class() generator object

See also

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

Public fields

bits

the number of bits in the modulus

n

the modulus

nSquared

the square of the modulus

nPlusOne

one more than the modulus

Methods

Public methods

• PaillierPublicKey$new()

• PaillierPublicKey$encrypt()

• PaillierPublicKey$add()

• PaillierPublicKey$sub()

• PaillierPublicKey$add_real()

• PaillierPublicKey$sub_real()

• PaillierPublicKey$mult()

• PaillierPublicKey$clone()

---

Method new()

Create a new public key and precompute some internal values for efficiency

Usage

PaillierPublicKey$new(bits, n)

Arguments

bits

number of bits to use

n

the modulus to use

Returns

a new PaillierPublicKey object

---

Method encrypt()

Encrypt a message

Usage

PaillierPublicKey$encrypt(m)

Arguments

m

the message

Returns

the encrypted message

---

Method add()

Add two encrypted messages

Usage

PaillierPublicKey$add(a, b)

Arguments

a

a message

b

another message

Returns

the sum of a and b

---

Method sub()

Subtract one encrypted message from another

Usage

PaillierPublicKey$sub(a, b)

Arguments

a

a message

b

another message

Returns

the difference a - b

---

Method add_real()

Return the sum a + b of an encrypted real message a, a list consisting of a encrypted integer part (named int) and an encrypted fractional part (named frac), and a real number a using den as denominator in the rational approximation.

Usage

PaillierPublicKey$add_real(den, a, b)

Arguments

den

the denominator to use for rational approximations

a

the real message, a list consisting of the integer and fractional parts named int and frac respectively

b

a simple real number

---

Method sub_real()

Return the difference a - b of an encrypted real message a, a list consisting of a encrypted integer part (named int) and an encrypted fractional part (named frac), and a real number b using den as denominator in the rational approximation.

Usage

PaillierPublicKey$sub_real(den, a, b)

Arguments

den

the denominator to use for rational approximations

a

the real message, a list consisting of the integer and fractional parts named int and frac respectively

b

a simple real number

---

Method mult()

Return the product of two encrypted messages a and b

Usage

PaillierPublicKey$mult(a, b)

Arguments

a

a message

b

another message

Returns

the product of a and b

---

Method clone()

The objects of this class are cloneable with this method.

Usage

PaillierPublicKey$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.