github.com/onflow/flow-go@v0.35.7-crescendo-preview.23-atree-inlining/model/flow/resultApproval.go (about)

     1  package flow
     2  
     3  import (
     4  	"github.com/onflow/crypto"
     5  )
     6  
     7  // Attestation confirms correctness of a chunk of an exec result
     8  type Attestation struct {
     9  	BlockID           Identifier // ID of the block included the collection
    10  	ExecutionResultID Identifier // ID of the execution result
    11  	ChunkIndex        uint64     // index of the approved chunk
    12  }
    13  
    14  // ID generates a unique identifier using attestation
    15  func (a Attestation) ID() Identifier {
    16  	return MakeID(a)
    17  }
    18  
    19  // ResultApprovalBody holds body part of a result approval
    20  type ResultApprovalBody struct {
    21  	Attestation
    22  	ApproverID           Identifier       // node id generating this result approval
    23  	AttestationSignature crypto.Signature // signature over attestation, this has been separated for BLS aggregation
    24  	Spock                crypto.Signature // proof of re-computation, one per each chunk
    25  }
    26  
    27  // PartialID generates a unique identifier using Attestation + ApproverID
    28  func (rab ResultApprovalBody) PartialID() Identifier {
    29  	data := struct {
    30  		Attestation Attestation
    31  		ApproverID  Identifier
    32  	}{
    33  		Attestation: rab.Attestation,
    34  		ApproverID:  rab.ApproverID,
    35  	}
    36  
    37  	return MakeID(data)
    38  }
    39  
    40  // ID generates a unique identifier using ResultApprovalBody
    41  func (rab ResultApprovalBody) ID() Identifier {
    42  	return MakeID(rab)
    43  }
    44  
    45  // ResultApproval includes an approval for a chunk, verified by a verification node
    46  type ResultApproval struct {
    47  	Body              ResultApprovalBody
    48  	VerifierSignature crypto.Signature // signature over all above fields
    49  }
    50  
    51  // ID generates a unique identifier using result approval body
    52  func (ra ResultApproval) ID() Identifier {
    53  	return MakeID(ra.Body)
    54  }
    55  
    56  // Checksum generates checksum using the result approval full content
    57  func (ra ResultApproval) Checksum() Identifier {
    58  	return MakeID(ra)
    59  }