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| 1 | +package org.tron.common.zksnark; |
| 2 | + |
| 3 | +import org.tron.common.zksnark.LibrustzcashParam.BindingSigParams; |
| 4 | +import org.tron.common.zksnark.LibrustzcashParam.CheckOutputNewParams; |
| 5 | +import org.tron.common.zksnark.LibrustzcashParam.CheckOutputParams; |
| 6 | +import org.tron.common.zksnark.LibrustzcashParam.CheckSpendNewParams; |
| 7 | +import org.tron.common.zksnark.LibrustzcashParam.CheckSpendParams; |
| 8 | +import org.tron.common.zksnark.LibrustzcashParam.ComputeCmParams; |
| 9 | +import org.tron.common.zksnark.LibrustzcashParam.ComputeNfParams; |
| 10 | +import org.tron.common.zksnark.LibrustzcashParam.CrhIvkParams; |
| 11 | +import org.tron.common.zksnark.LibrustzcashParam.FinalCheckNewParams; |
| 12 | +import org.tron.common.zksnark.LibrustzcashParam.FinalCheckParams; |
| 13 | +import org.tron.common.zksnark.LibrustzcashParam.InitZksnarkParams; |
| 14 | +import org.tron.common.zksnark.LibrustzcashParam.IvkToPkdParams; |
| 15 | +import org.tron.common.zksnark.LibrustzcashParam.KaAgreeParams; |
| 16 | +import org.tron.common.zksnark.LibrustzcashParam.KaDerivepublicParams; |
| 17 | +import org.tron.common.zksnark.LibrustzcashParam.MerkleHashParams; |
| 18 | +import org.tron.common.zksnark.LibrustzcashParam.OutputProofParams; |
| 19 | +import org.tron.common.zksnark.LibrustzcashParam.SpendProofParams; |
| 20 | +import org.tron.common.zksnark.LibrustzcashParam.SpendSigParams; |
| 21 | +import org.tron.core.exception.ZksnarkException; |
| 22 | + |
| 23 | +public class JLibrustzcash { |
| 24 | + private static Librustzcash INSTANCE = LibrustzcashWrapper.getInstance(); |
| 25 | + |
| 26 | + public static void librustzcashInitZksnarkParams(InitZksnarkParams params) { |
| 27 | + INSTANCE.librustzcashInitZksnarkParams(params.getSpend_path(), |
| 28 | + params.getSpend_hash(), params.getOutput_path(), params.getOutput_hash()); |
| 29 | + } |
| 30 | + |
| 31 | + public static void librustzcashCrhIvk(CrhIvkParams params) { |
| 32 | + INSTANCE.librustzcashCrhIvk(params.getAk(), params.getNk(), params.getIvk()); |
| 33 | + } |
| 34 | + |
| 35 | + public static boolean librustzcashKaAgree(KaAgreeParams params) { |
| 36 | + return INSTANCE.librustzcashSaplingKaAgree(params.getP(), params.getSk(), params.getResult()); |
| 37 | + } |
| 38 | + |
| 39 | + public static boolean librustzcashComputeCm(ComputeCmParams params) { |
| 40 | + return INSTANCE.librustzcashSaplingComputeCm(params.getD(), params.getPkD(), |
| 41 | + params.getValue(), params.getR(), params.getCm()); |
| 42 | + } |
| 43 | + |
| 44 | + public static boolean librustzcashComputeNf(ComputeNfParams params) { |
| 45 | + INSTANCE.librustzcashSaplingComputeNf(params.getD(), params.getPkD(), params.getValue(), |
| 46 | + params.getR(), params.getAk(), params.getNk(), params.getPosition(), params.getResult()); |
| 47 | + return true; |
| 48 | + } |
| 49 | + |
| 50 | + /** |
| 51 | + * @param ask the spend authorizing key,to generate ak, 32 bytes |
| 52 | + * @return ak 32 bytes |
| 53 | + */ |
| 54 | + public static byte[] librustzcashAskToAk(byte[] ask) throws ZksnarkException { |
| 55 | + LibrustzcashParam.valid32Params(ask); |
| 56 | + byte[] ak = new byte[32]; |
| 57 | + INSTANCE.librustzcashAskToAk(ask, ak); |
| 58 | + return ak; |
| 59 | + } |
| 60 | + |
| 61 | + /** |
| 62 | + * @param nsk the proof authorizing key, to generate nk, 32 bytes |
| 63 | + * @return 32 bytes |
| 64 | + */ |
| 65 | + public static byte[] librustzcashNskToNk(byte[] nsk) throws ZksnarkException { |
| 66 | + LibrustzcashParam.valid32Params(nsk); |
| 67 | + byte[] nk = new byte[32]; |
| 68 | + INSTANCE.librustzcashNskToNk(nsk, nk); |
| 69 | + return nk; |
| 70 | + } |
| 71 | + |
| 72 | + // void librustzcash_nsk_to_nk(const unsigned char *nsk, unsigned char *result); |
| 73 | + |
| 74 | + /** |
| 75 | + * @return r: random number, less than r_J, 32 bytes |
| 76 | + */ |
| 77 | + public static byte[] librustzcashSaplingGenerateR(byte[] r) throws ZksnarkException { |
| 78 | + LibrustzcashParam.valid32Params(r); |
| 79 | + INSTANCE.librustzcashSaplingGenerateR(r); |
| 80 | + return r; |
| 81 | + } |
| 82 | + |
| 83 | + public static boolean librustzcashSaplingKaDerivepublic(KaDerivepublicParams params) { |
| 84 | + return INSTANCE.librustzcashSaplingKaDerivepublic(params.getDiversifier(), params.getEsk(), |
| 85 | + params.getResult()); |
| 86 | + } |
| 87 | + |
| 88 | + public static long librustzcashSaplingProvingCtxInit() { |
| 89 | + return INSTANCE.librustzcashSaplingProvingCtxInit(); |
| 90 | + } |
| 91 | + |
| 92 | + /** |
| 93 | + * check validity of d |
| 94 | + * |
| 95 | + * @param d 11 bytes |
| 96 | + */ |
| 97 | + public static boolean librustzcashCheckDiversifier(byte[] d) throws ZksnarkException { |
| 98 | + LibrustzcashParam.valid11Params(d); |
| 99 | + return INSTANCE.librustzcashCheckDiversifier(d); |
| 100 | + } |
| 101 | + |
| 102 | + public static boolean librustzcashSaplingSpendProof(SpendProofParams params) { |
| 103 | + return INSTANCE.librustzcashSaplingSpendProof(params.getCtx(), params.getAk(), |
| 104 | + params.getNsk(), params.getD(), params.getR(), params.getAlpha(), params.getValue(), |
| 105 | + params.getAnchor(), params.getVoucherPath(), params.getCv(), params.getRk(), |
| 106 | + params.getZkproof()); |
| 107 | + } |
| 108 | + |
| 109 | + public static boolean librustzcashSaplingOutputProof(OutputProofParams params) { |
| 110 | + return INSTANCE.librustzcashSaplingOutputProof(params.getCtx(), params.getEsk(), |
| 111 | + params.getD(), params.getPkD(), params.getR(), params.getValue(), params.getCv(), |
| 112 | + params.getZkproof()); |
| 113 | + } |
| 114 | + |
| 115 | + public static boolean librustzcashSaplingSpendSig(SpendSigParams params) { |
| 116 | + return INSTANCE.librustzcashSaplingSpendSig(params.getAsk(), params.getAlpha(), |
| 117 | + params.getSigHash(), params.getResult()); |
| 118 | + } |
| 119 | + |
| 120 | + public static boolean librustzcashSaplingBindingSig(BindingSigParams params) { |
| 121 | + return INSTANCE.librustzcashSaplingBindingSig(params.getCtx(), |
| 122 | + params.getValueBalance(), params.getSighash(), params.getResult()); |
| 123 | + } |
| 124 | + |
| 125 | + /** |
| 126 | + * convert value to 32-byte scalar |
| 127 | + * |
| 128 | + * @param value 64 bytes |
| 129 | + * @param data 32 bytes |
| 130 | + */ |
| 131 | + public static void librustzcashToScalar(byte[] value, byte[] data) throws ZksnarkException { |
| 132 | + LibrustzcashParam.validParamLength(value, 64); |
| 133 | + LibrustzcashParam.valid32Params(data); |
| 134 | + INSTANCE.librustzcashToScalar(value, data); |
| 135 | + } |
| 136 | + |
| 137 | + public static void librustzcashSaplingProvingCtxFree(long ctx) { |
| 138 | + INSTANCE.librustzcashSaplingProvingCtxFree(ctx); |
| 139 | + } |
| 140 | + |
| 141 | + public static long librustzcashSaplingVerificationCtxInit() { |
| 142 | + return INSTANCE.librustzcashSaplingVerificationCtxInit(); |
| 143 | + } |
| 144 | + |
| 145 | + public static boolean librustzcashSaplingCheckSpend(CheckSpendParams params) { |
| 146 | + return INSTANCE.librustzcashSaplingCheckSpend(params.getCtx(), params.getCv(), |
| 147 | + params.getAnchor(), params.getNullifier(), params.getRk(), params.getZkproof(), |
| 148 | + params.getSpendAuthSig(), params.getSighashValue()); |
| 149 | + } |
| 150 | + |
| 151 | + public static boolean librustzcashSaplingCheckOutput(CheckOutputParams params) { |
| 152 | + return INSTANCE.librustzcashSaplingCheckOutput(params.getCtx(), params.getCv(), |
| 153 | + params.getCm(), params.getEphemeralKey(), params.getZkproof()); |
| 154 | + } |
| 155 | + |
| 156 | + public static boolean librustzcashSaplingFinalCheck(FinalCheckParams params) { |
| 157 | + return INSTANCE.librustzcashSaplingFinalCheck(params.getCtx(), |
| 158 | + params.getValueBalance(), params.getBindingSig(), params.getSighashValue()); |
| 159 | + } |
| 160 | + |
| 161 | + public static boolean librustzcashSaplingCheckSpendNew(CheckSpendNewParams params) { |
| 162 | + return INSTANCE.librustzcashSaplingCheckSpendNew(params.getCv(), |
| 163 | + params.getAnchor(), params.getNullifier(), params.getRk(), params.getZkproof(), |
| 164 | + params.getSpendAuthSig(), params.getSighashValue()); |
| 165 | + } |
| 166 | + |
| 167 | + public static boolean librustzcashSaplingCheckOutputNew(CheckOutputNewParams params) { |
| 168 | + return INSTANCE.librustzcashSaplingCheckOutputNew(params.getCv(), params.getCm(), |
| 169 | + params.getEphemeralKey(), params.getZkproof()); |
| 170 | + } |
| 171 | + |
| 172 | + public static boolean librustzcashSaplingFinalCheckNew(FinalCheckNewParams params) { |
| 173 | + return INSTANCE |
| 174 | + .librustzcashSaplingFinalCheckNew(params.getValueBalance(), params.getBindingSig(), |
| 175 | + params.getSighashValue(), params.getSpendCv(), params.getSpendCvLen(), |
| 176 | + params.getOutputCv(), params.getOutputCvLen()); |
| 177 | + } |
| 178 | + |
| 179 | + public static void librustzcashSaplingVerificationCtxFree(long ctx) { |
| 180 | + INSTANCE.librustzcashSaplingVerificationCtxFree(ctx); |
| 181 | + } |
| 182 | + |
| 183 | + public static boolean librustzcashIvkToPkd(IvkToPkdParams params) { |
| 184 | + return INSTANCE.librustzcashIvkToPkd(params.getIvk(), params.getD(), params.getPkD()); |
| 185 | + } |
| 186 | + |
| 187 | + public static void librustzcashMerkleHash(MerkleHashParams params) { |
| 188 | + INSTANCE.librustzcashMerkleHash(params.getDepth(), params.getA(), params.getB(), |
| 189 | + params.getResult()); |
| 190 | + } |
| 191 | + |
| 192 | + /** |
| 193 | + * @param result uncommitted value, 32 bytes |
| 194 | + */ |
| 195 | + public static void librustzcashTreeUncommitted(byte[] result) throws ZksnarkException { |
| 196 | + LibrustzcashParam.valid32Params(result); |
| 197 | + INSTANCE.librustzcashTreeUncommitted(result); |
| 198 | + } |
| 199 | +} |
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