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wip #7

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3efe9df
wip
mikiquantum Jun 20, 2019
71f35cd
fix signature
stefandeml Jun 21, 2019
616bc18
last changes
mikiquantum Jun 21, 2019
f6d889b
merge
mikiquantum Jun 21, 2019
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61 changes: 40 additions & 21 deletions demo/nft.code
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
import "./pedersenTree2.code" as verifyMerkleHash2
import "./pedersenTree3.code" as verifyMerkleHash3
import "hashes/sha256/512bitPadded.code" as sha512
import "hashes/sha256/1024bitPadded.code" as sha1024
import "./pedersenAndSha256Tree8.code" as verifyMerkleHash8
import "hashes/sha256/512bit.code" as sha512
import "hashes/sha256/1024bit.code" as sha1024
import "utils/pack/pack256.code" as pack256
import "utils/pack/unpack128.code" as unpack128
import "utils/casts/1024to256array.code" as splitTo256bitChunks
Expand All @@ -11,21 +11,38 @@ import "PACKING/split" as split

def concatBuyerRatingProofValue(field[160] buyerID, field[256] buyerPubkey, field[8] buyerRating) -> (field[512]):

field[424] data = [... buyerID, ...buyerPubkey, ...buyerRating]
field[88] padding = [0; 88]
field[424] data = [...buyerID, ...buyerPubkey, ...buyerRating]
field[23] padding = [0; 23]
field[55] dataPad = [0; 55]
field[9] length = [1,1,0,1,0,1,0,0,0]
field[64] dataLength = [...dataPad, ...length]

field[512] out = [...data, ...padding]
field[512] out = [...data, 1, ...padding, ...dataLength]
return out

def concatInvoiceBuyerLeaf(field[256] property, field[160] buyerValue, field[256] salt) ->(field[1024]):
def concatInvoiceBuyerLeaf(field[64] property, field[160] buyerValue, field[256] salt) ->(field[1024]):

field[672] data = [...property, ...buyerValue, ...salt]
field[352] padding = [0; 352]
field[480] data = [...property, ...buyerValue, ...salt]
field[479] padding = [0; 479]
field[55] dataPad = [0; 55]
field[9] length = [1,1,1,1,0,0,0,0,0]
field[64] dataLength = [...dataPad, ...length]

field[1024] out = [...data, ...padding]
field[1024] out = [...data, 1, ...padding, ...dataLength]
return out

def main(field[2] creditRatingRootHashField, field buyerRatingField, privatefield[160] buyerID, privatefield[256] buyerPubkey, privatefield[2] directionCreditRatingTree, privatefield[256] creditRatingTreeDigest0, privatefield[256] creditRatingTreeDigest1, field nftAmount, field[2] documentRootHashField, privatefield[256] invoiceAmountValue, privatefield[256] invoiceAmountProperty, privatefield[256] invoiceAmountSalt, privatefield[3] invoiceAmountTreeDirection, privatefield[256] invoiceAmountTreeDigests0, privatefield[256] invoiceAmountTreeDigests1, privatefield[256] invoiceAmountTreeDigests2, privatefield[160] invoiceBuyerValue, privatefield[256] invoiceBuyerProperty, privatefield[256] invoiceBuyerSalt, privatefield[3] invoiceBuyerTreeDirection, privatefield[256] invoiceBuyerTreeDigests0, privatefield[256] invoiceBuyerTreeDigests1, privatefield[256] invoiceBuyerTreeDigests2, privatefield[2] SignatureR, privatefield SignatureS, privatefield[2] BuyerPubKey) -> (field):
def concatInvoiceAmountLeaf(field[64] property, field[256] amountValue, field[256] salt) ->(field[1024]):

field[576] data = [...property, ...amountValue, ...salt]
field[383] padding = [0; 383]
field[54] dataPad = [0; 54]
field[10] length = [1,0,0,1,0,0,0,0,0,0]
field[64] dataLength = [...dataPad, ...length]

field[1024] out = [...data, 1, ...padding, ...dataLength]
return out

def main(field[2] creditRatingRootHashField, field buyerRatingField, privatefield[160] buyerID, privatefield[256] buyerPubkey, privatefield[2] directionCreditRatingTree, privatefield[256] creditRatingTreeDigest0, privatefield[256] creditRatingTreeDigest1, field nftAmount, field[2] documentRootHashField, privatefield[256] invoiceAmountValue, privatefield[64] invoiceAmountProperty, privatefield[256] invoiceAmountSalt, privatefield[8] invoiceAmountTreeDirection, privatefield[256] invoiceAmountTreeDigests0, privatefield[256] invoiceAmountTreeDigests1, privatefield[256] invoiceAmountTreeDigests2, privatefield[256] invoiceAmountTreeDigests3, privatefield[256] invoiceAmountTreeDigests4, privatefield[256] invoiceAmountTreeDigests5, privatefield[256] invoiceAmountTreeDigests6, privatefield[256] invoiceAmountTreeDigests7, privatefield[160] invoiceBuyerValue, privatefield[64] invoiceBuyerProperty, privatefield[256] invoiceBuyerSalt, privatefield[2] SignatureR, privatefield SignatureS, privatefield[2] BuyerPubKey) -> (field):
context = context()

field[128] creditRatingRootHash0 = unpack128(creditRatingRootHashField[0])
Expand All @@ -37,27 +54,29 @@ def main(field[2] creditRatingRootHashField, field buyerRatingField, privatefiel
field[8] buyerRating = buyerRatingFieldBits[246..254]
field[512] buyerRatingProofValue = concatBuyerRatingProofValue(buyerID, buyerPubkey, buyerRating)
field[256] leafCreditRatingTree = sha512(buyerRatingProofValue[0..256], buyerRatingProofValue[256..512])
field ratingTreeResult = verifyMerkleHash2(creditRatingRootHash, leafCreditRatingTree, directionCreditRatingTree,creditRatingTreeDigest0, creditRatingTreeDigest1)
field ratingTreeResult = verifyMerkleHash2(creditRatingRootHash, leafCreditRatingTree, directionCreditRatingTree, creditRatingTreeDigest0, creditRatingTreeDigest1)

// // Verfies that the document is owned by the buyer
// Verfies that the document is owned by the buyer
field[128] documentRootHash0 = unpack128(documentRootHashField[0])
field[128] documentRootHash1 = unpack128(documentRootHashField[1])
field[256] documentRootHash = [...documentRootHash0, ...documentRootHash1]

field[256] padding = [0; 256]
field[256] leafInvoiceAmountTree = sha1024(invoiceAmountProperty, invoiceAmountValue, invoiceAmountSalt, padding)
field invoiceAmountTreeResult = verifyMerkleHash3(documentRootHash, leafInvoiceAmountTree, invoiceAmountTreeDirection, invoiceAmountTreeDigests0, invoiceAmountTreeDigests1, invoiceAmountTreeDigests2)
field[1024] invoiceAmountTreeValue = concatInvoiceAmountLeaf(invoiceAmountProperty, invoiceAmountValue, invoiceAmountSalt)
a, b, c, d = splitTo256bitChunks(invoiceAmountTreeValue)
field[256] leafInvoiceAmountTree = sha1024(a, b, c, d)
field invoiceAmountTreeResult = verifyMerkleHash8(documentRootHash, leafInvoiceAmountTree, invoiceAmountTreeDirection, invoiceAmountTreeDigests0, invoiceAmountTreeDigests1, invoiceAmountTreeDigests2, invoiceAmountTreeDigests3, invoiceAmountTreeDigests4, invoiceAmountTreeDigests5, invoiceAmountTreeDigests6, invoiceAmountTreeDigests7)

field[1024] invoiceBuyerTreeValue = concatInvoiceBuyerLeaf(invoiceBuyerProperty, invoiceBuyerValue, invoiceBuyerSalt)
a, b, c, d = splitTo256bitChunks(invoiceBuyerTreeValue)
a, b, c, d = splitTo256bitChunks(invoiceBuyerTreeValue)
field[256] leafInvoiceBuyerTree = sha1024(a, b, c, d)
field invoiceBuyerTreeResult = verifyMerkleHash3(documentRootHash, leafInvoiceBuyerTree, invoiceBuyerTreeDirection, invoiceBuyerTreeDigests0, invoiceBuyerTreeDigests1, invoiceBuyerTreeDigests2)
field invoiceBuyerTreeResult = verifyMerkleHash8(documentRootHash, leafInvoiceBuyerTree, invoiceBuyerTreeDirection, invoiceBuyerTreeDigests0, invoiceBuyerTreeDigests1, invoiceBuyerTreeDigests2, invoiceBuyerTreeDigests3, invoiceBuyerTreeDigests4, invoiceBuyerTreeDigests5, invoiceBuyerTreeDigests6, invoiceBuyerTreeDigests7)

// Ensures that the signature is valid
// Ensures that the signature is valid
field[256] padding = [0; 256]
field isVerified = verifyEddsa(SignatureR, SignatureS, BuyerPubKey, documentRootHash, padding, context)

// NFT amount needs to be smaller than invoice amount
invoiceAmountValueField = pack256(invoiceAmountValue)
field out = if invoiceAmountValueField > nftAmount then 1 else 0 fi
field out = if invoiceAmountValueField > nftAmount then 1 else 0 fi

return 1
return 1
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