Members

Type: number

# readonly slotCount

The total number of CKKS slots available to hold data

Methods

# decode(plainText, poolopt) → {Float64Array}

Decodes a plaintext polynomial into double-precision floating-point real numbers. Dynamic memory allocations in the process are allocated from the memory pool pointed to by the given MemoryPoolHandle.

Parameters:

Name	Type	Attributes	Default	Description
`plainText`	`PlainText`			Data to decode
`pool`	`MemoryPoolHandle`	<optional>	MemoryPoolHandle.global	MemoryPool to use

View Source ckks-encoder.ts, line 99

Returns:

TypedArray containing the decoded data

Type: Float64Array

Example

import SEAL from 'node-seal'
const seal = await SEAL()
...
const ckksEncoder = seal.CKKSEncoder(context)

const plainText = ckksEncoder.encode(Float64Array.from([1, 2, 3]))

const result = ckksEncoder.decode(plainText)

# delete()

Delete the underlying WASM instance. Should be called before dereferencing this object to prevent the WASM heap from growing indefinitely.

View Source ckks-encoder.ts, line 45

# encode(array, scale, plainTextopt, poolopt) → {PlainText|void}

Encodes a vector of double-precision floating-point real numbers into a plaintext polynomial. Append zeros if vector size is less than N/2. Dynamic memory allocations in the process are allocated from the memory pool pointed to by the given MemoryPoolHandle.

Parameters:

Name	Type	Attributes	Default	Description
`array`	`Float64Array`			Data to encode
`scale`	`number`			Scaling parameter defining encoding precision
`plainText`	`PlainText`	<optional>		Destination to store the encoded result
`pool`	`MemoryPoolHandle`	<optional>	MemoryPoolHandle.global	MemoryPool to use

View Source ckks-encoder.ts, line 59

Returns:

A new PlainText holding the encoded data or void if one was provided

Type: PlainText | void

Example

import SEAL from 'node-seal'
const seal = await SEAL()
...
const ckksEncoder = seal.CKKSEncoder(context)

const plainText = ckksEncoder.encode(Float64Array.from([1.11, -2.222, 3.333]), Math.pow(2, 20))