blobsToProofs

Computes KZG proofs for a list of blobs and their commitments using a KZG implementation.

Import

import "github.com/ChefBingbong/viem-go/utils/blob"
import "github.com/ChefBingbong/viem-go/utils/kzg"

Usage

import "github.com/ChefBingbong/viem-go/utils/blob"
import "github.com/ChefBingbong/viem-go/utils/kzg"

blobs, _ := blob.ToBlobs([]byte("hello world"))
commitments, _ := blob.BlobsToCommitments(blobs, kzgImpl)

// Compute proofs
proofs, err := blob.BlobsToProofs(blobs, commitments, kzgImpl)
if err != nil {
  log.Fatal(err)
}

// Get proofs as hex strings
hexProofs, err := blob.BlobsToProofsHex(blobs, commitments, kzgImpl)
if err != nil {
  log.Fatal(err)
}

Returns

• Type: ([][]byte, error) for BlobsToProofs, ([]string, error) for BlobsToProofsHex

An array of KZG proofs, one for each blob. Each proof is 48 bytes.

Parameters

blobs (required)

• Type: [][]byte

The blobs to compute proofs for. Must have the same length as commitments.

blobs, _ := blob.ToBlobs([]byte("hello world"))
commitments, _ := blob.BlobsToCommitments(blobs, kzgImpl)
proofs, _ := blob.BlobsToProofs(blobs, commitments, kzgImpl)

commitments (required)

• Type: [][]byte

The KZG commitments corresponding to the blobs. Must have the same length as blobs.

commitments, _ := blob.BlobsToCommitments(blobs, kzgImpl)
proofs, _ := blob.BlobsToProofs(blobs, commitments, kzgImpl)

kzgImpl (required)

• Type: kzg.Kzg

The KZG implementation to use for computing proofs.

proofs, _ := blob.BlobsToProofs(blobs, commitments, kzgImpl)

Functions

BlobsToProofs

Computes proofs from blobs and commitments:

proofs, _ := blob.BlobsToProofs(blobs, commitments, kzgImpl)

BlobsToProofsHex

Computes proofs and returns them as hex strings:

hexProofs, _ := blob.BlobsToProofsHex(blobs, commitments, kzgImpl)

BlobsHexToProofs

Computes proofs from hex-encoded blobs and commitments:

proofs, _ := blob.BlobsHexToProofs(hexBlobs, hexCommitments, kzgImpl)

BlobsHexToProofsHex

Computes hex proofs from hex blobs and commitments:

hexProofs, _ := blob.BlobsHexToProofsHex(hexBlobs, hexCommitments, kzgImpl)

Notes

• Each proof is 48 bytes (384 bits)
• Proofs are used to verify that a blob matches its commitment
• The number of proofs equals the number of blobs
• blobs and commitments must have the same length