Class BBSSignatureParams

constructor

• new BBSSignatureParams(params, label?): BBSSignatureParams

• Parameters

  • params: BbsSigParams
  • Optionallabel: Uint8Array

  Returns BBSSignatureParams

Optionallabel

value

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

commitToMessages

• commitToMessages(messageToCommit, encodeMessages): Uint8Array

• Commit to given messages and return the commitment

  Parameters

  • messageToCommit: Map<number, Uint8Array>
  • encodeMessages: boolean

  Returns Uint8Array

commitToMessagesConstantTime

• commitToMessagesConstantTime(messageToCommit, encodeMessages): Uint8Array

• Parameters

  • messageToCommit: Map<number, Uint8Array>
  • encodeMessages: boolean

  Returns Uint8Array

getParamsForIndices

• getParamsForIndices(indices): Uint8Array[]

• Get params, i.e. generator from this.value.h for certain indices

  Parameters

  • indices: number[]

  Returns Uint8Array[]

isValid

• isValid(): boolean

• Returns boolean

isValidIndex

• isValidIndex(index): boolean

• Is message index valid as per the params

  Parameters

  • index: number

  Returns boolean

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

toBytes

• toBytes(): Uint8Array

• Returns Uint8Array

toJSON

• toJSON(): string

• Returns string

Staticgenerate

• generate(numMessages, label?): BBSSignatureParams

• Parameters

  • numMessages: number
  • Optionallabel: Uint8Array

  Returns BBSSignatureParams

StaticgenerateAsBytes

• generateAsBytes(numMessages, label?): Uint8Array

• Parameters

  • numMessages: number
  • Optionallabel: Uint8Array

  Returns Uint8Array

StaticgetSigParamsForMsgStructure

• getSigParamsForMsgStructure(msgStructure, labelOrParams): BBSSignatureParams

• Parameters

  • msgStructure: any
  • labelOrParams: Uint8Array | BBSSignatureParams

  Returns BBSSignatureParams

StaticgetSigParamsOfRequiredSize

• getSigParamsOfRequiredSize(msgCount, labelOrParams): BBSSignatureParams

• Gives BBSSignatureParams that can sign msgCount number of messages.

  Parameters

  • msgCount: number
  • labelOrParams: Uint8Array | BBSSignatureParams

  Returns BBSSignatureParams

StaticvalueFromBytes

• valueFromBytes(bytes): BbsSigParams

• Parameters

  • bytes: Uint8Array

  Returns BbsSigParams