commit()

SIP Protocol API Reference v0.7.0

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SIP Protocol API Reference / commit

Function: commit()

commit(value, blinding?): PedersenCommitment

Defined in: @sip-protocol/sdk/dist/index-BYZbDjal.d.ts:3573

Create a Pedersen commitment to a value

C = vG + rH

Where:

• v = value (the amount being committed)
• r = blinding factor (random, keeps value hidden)
• G = base generator
• H = independent generator (NUMS)

Parameters

value

bigint

The value to commit to (must be < curve order)

blinding?

Uint8Array<ArrayBufferLike>

Optional blinding factor (random 32 bytes if not provided)

Returns

PedersenCommitment

The commitment and blinding factor

Example

// Create a commitment to 100 tokens
const { commitment, blinding } = commit(100n)

// Later, prove the commitment contains 100
const valid = verifyOpening(commitment, 100n, blinding)