README
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merkletree-proof
Merkletree proof is a complementary library for reverse hash service to fetch iden3 identity state roots and generate Sparse Merkle Tree proofs.
Docs
Install
go get github.com/iden3/go-merkletree-proof
Examples
Fetch identity state roots
Fetch identity state roots for identity state hash e12084d0d72c492c703a2053b371026bceda40afb9089c325652dfd2e5e11223
Identity state must be fetched from the blockchain State contract.
stateHash, _ := merkletree.NewHashFromHex("e12084d0d72c492c703a2053b371026bceda40afb9089c325652dfd2e5e11223")
cli := &merkletree_proof.HTTPReverseHashCli{URL: "<link to RHS>"}
// get identity state roots
stateValues, err := cli.GetNode(ctx, stateHash)
Generate proof
Generate proof for revocation nonce 670966937 and revocation root b92f062026083232bdd4d3a93986276515aa874fd3f7e928d6f67c8c91a6b705
revocationNonce, _ := merkletree.NewHashFromBigInt(big.NewInt(670966937))
revocationRoot, _ := merkletree.NewHashFromHex("b92f062026083232bdd4d3a93986276515aa874fd3f7e928d6f67c8c91a6b705")
cli := &proof.HTTPReverseHashCli{URL: "<link to RHS>"}
proof, _ := cli.GenerateProof(ctx, revocationRoot, revocationNonce)
Contributing
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as below, without any additional terms or conditions.
License
Copyright 2023 0kims Association
This project is licensed under either of
at your option.
Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
var ErrNodeNotFound = errors.New("node not found")
Deprecated: use github.com/iden3/contracts-abi/onchain-credential-status-resolver/go/abi ErrNodeNotFound instead.
Functions ¶
func GenerateProof ¶ added in v0.0.4
func GenerateProof(ctx context.Context, cli NodeReader, treeRoot *merkletree.Hash, key *merkletree.Hash) (*merkletree.Proof, error)
Types ¶
type Node ¶
type Node struct {
Hash *merkletree.Hash
Children []*merkletree.Hash
}
func (Node) MarshalJSON ¶
func (*Node) UnmarshalJSON ¶
type NodeReader ¶ added in v0.0.4
type ReverseHashCli ¶ added in v0.0.4
type ReverseHashCli interface {
GenerateProof(ctx context.Context,
treeRoot *merkletree.Hash,
key *merkletree.Hash) (*merkletree.Proof, error)
GetNode(ctx context.Context,
hash *merkletree.Hash) (Node, error)
SaveNodes(ctx context.Context,
nodes []Node) error
}
Source Files
Directories