Class BBSPlusSignatureParamsG1

BBS+ Signature parameters in G1.

Hierarchy (view full)

BBSPlusSignatureParams
- BBSPlusSignatureParamsG1

Index

Constructors

Properties

Methods

adapt commitToMessages commitToMessagesConstantTime getParamsForIndices isValid isValidIndex supportedMessageCount toBytes toJSON generate generateAsBytes getSigParamsForMsgStructure getSigParamsOfRequiredSize valueFromBytes

Constructors

constructor

new BBSPlusSignatureParamsG1(params, label?): BBSPlusSignatureParamsG1
Parameters
- params: BbsPlusSigParams
- Optionallabel: Uint8Array
Returns BBSPlusSignatureParamsG1
Inherited from BBSPlusSignatureParams.constructor
- Defined in bbs-plus/params.ts:26

Properties

`Optional`label

label?: Uint8Array

value

value: BbsPlusSigParams

Methods

adapt

adapt(newMsgCount): this
Transform current signature params to sign a different number of messages. Needs the label field to be present
Parameters
- newMsgCount: number
Returns this
Overrides BBSPlusSignatureParams.adapt
- Defined in bbs-plus/params.ts:112

commitToMessages

commitToMessages(messageToCommit, encodeMessages, blinding?): [Uint8Array, Uint8Array]
Commit to given messages and return the pair [blinding, commitment]
Parameters
- messageToCommit: Map<number, Uint8Array>
- encodeMessages: boolean
- blinding: Uint8Array = ...
  If not provided, a random blinding is generated
Returns [Uint8Array, Uint8Array]
- Defined in bbs-plus/params.ts:137

commitToMessagesConstantTime

commitToMessagesConstantTime(messageToCommit, encodeMessages, blinding?): [Uint8Array, Uint8Array]
Commit to given messages and return the pair [blinding, commitment]
Parameters
- messageToCommit: Map<number, Uint8Array>
- encodeMessages: boolean
- blinding: Uint8Array = ...
  If not provided, a random blinding is generated
Returns [Uint8Array, Uint8Array]
- Defined in bbs-plus/params.ts:152

getParamsForIndices

getParamsForIndices(indices): Uint8Array[]
Get params, i.e. generator from this.value.h for certain indices
Parameters
- indices: number[]
Returns Uint8Array[]
Inherited from BBSPlusSignatureParams.getParamsForIndices
- Defined in bbs-plus/params.ts:58

isValid

isValid(): boolean
Returns boolean
Overrides BBSPlusSignatureParams.isValid
- Defined in bbs-plus/params.ts:100

isValidIndex

isValidIndex(index): boolean
Is message index valid as per the params
Parameters
- index: number
Returns boolean
Inherited from BBSPlusSignatureParams.isValidIndex
- Defined in bbs-plus/params.ts:50

supportedMessageCount

supportedMessageCount(): number
Number of messages that these params support and can be signed. If less or more messages are to be signed, use adapt

Returns number
Inherited from BBSPlusSignatureParams.supportedMessageCount
- Defined in bbs-plus/params.ts:42

toBytes

toBytes(): Uint8Array
Returns Uint8Array
Overrides BBSPlusSignatureParams.toBytes
- Defined in bbs-plus/params.ts:96

toJSON

toJSON(): string
Returns string
Inherited from BBSPlusSignatureParams.toJSON
- Defined in bbs-plus/params.ts:70

`Static`generate

generate(numMessages, label?): BBSPlusSignatureParamsG1
Parameters
- numMessages: number
- Optionallabel: Uint8Array
Returns BBSPlusSignatureParamsG1
- Defined in bbs-plus/params.ts:87

`Static`generateAsBytes

generateAsBytes(numMessages, label?): Uint8Array
Parameters
- numMessages: number
- Optionallabel: Uint8Array
Returns Uint8Array
- Defined in bbs-plus/params.ts:92

`Static`getSigParamsForMsgStructure

getSigParamsForMsgStructure(msgStructure, labelOrParams): BBSPlusSignatureParamsG1
Parameters
- msgStructure: any
- labelOrParams: Uint8Array | BBSPlusSignatureParamsG1
Returns BBSPlusSignatureParamsG1
- Defined in bbs-plus/params.ts:173

`Static`getSigParamsOfRequiredSize

getSigParamsOfRequiredSize(msgCount, labelOrParams): BBSPlusSignatureParamsG1
Gives BBSPlusSignatureParamsG1 that can sign msgCount number of messages.
Parameters
- msgCount: number
- labelOrParams: Uint8Array | BBSPlusSignatureParamsG1
Returns BBSPlusSignatureParamsG1
- Defined in bbs-plus/params.ts:166

`Static`valueFromBytes

valueFromBytes(bytes): BbsPlusSigParams
Parameters
- bytes: Uint8Array
Returns BbsPlusSigParams
- Defined in bbs-plus/params.ts:104