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https://github.com/darkrenaissance/darkfi.git
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98 lines
3.2 KiB
Plaintext
98 lines
3.2 KiB
Plaintext
k = 13;
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field = "pallas";
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constant "Lead" {
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EcFixedPointShort VALUE_COMMIT_VALUE,
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EcFixedPoint VALUE_COMMIT_RANDOM,
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EcFixedPointBase NULLIFIER_K,
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}
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witness "Lead" {
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MerklePath c1_cm_path,
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Uint32 c1_cm_pos,
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Uint32 c1_sk_pos,
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Base c1_sk,
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Base c1_sk_root,
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MerklePath c1_sk_path,
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Base c1_slot,
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Base c1_rho,
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Scalar c1_opening,
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Base value,
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Scalar c2_opening,
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Base mu_rho,
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Base mu_y,
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Base sigma1,
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Base sigma2,
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Base headstart,
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}
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circuit "Lead" {
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ZERO = witness_base(0);
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ONE = witness_base(1);
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REWARD = witness_base(1);
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PREFIX_EVL = witness_base(2);
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PREFIX_SEED = witness_base(3);
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PREFIX_CM = witness_base(4);
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PREFIX_PK = witness_base(5);
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PREFIX_SN = witness_base(6);
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# coin (1) pk
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pk = poseidon_hash(PREFIX_PK, c1_sk_root, c1_slot, ZERO);
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constrain_instance(pk);
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# coin (1) cm/commitment
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c1_cm_msg = poseidon_hash(PREFIX_CM, pk, value, c1_rho);
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c1_cm_v = ec_mul_base(c1_cm_msg, NULLIFIER_K);
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c1_cm_r = ec_mul(c1_opening, VALUE_COMMIT_RANDOM);
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c1_cm = ec_add(c1_cm_v, c1_cm_r);
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c1_cm_x = ec_get_x(c1_cm);
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c1_cm_y = ec_get_y(c1_cm);
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c1_cm_hash = poseidon_hash(c1_cm_x, c1_cm_y);
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constrain_instance(c1_cm_x);
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constrain_instance(c1_cm_y);
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# coin (2) rho/nonce
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c2_rho = poseidon_hash(PREFIX_EVL, c1_sk_root, c1_rho, ZERO);
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# coin (2) cm/commitment
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# reward
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c2_value = base_add(value, REWARD);
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c2_cm_msg = poseidon_hash(PREFIX_CM, pk, c2_value, c2_rho);
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c2_cm_v = ec_mul_base(c2_cm_msg, NULLIFIER_K);
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c2_cm_r = ec_mul(c2_opening, VALUE_COMMIT_RANDOM);
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c2_cm = ec_add(c2_cm_v, c2_cm_r);
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c2_cm_x = ec_get_x(c2_cm);
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c2_cm_y = ec_get_y(c2_cm);
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constrain_instance(c2_cm_x);
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constrain_instance(c2_cm_y);
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# root of path to burnt coin commitment at given pos
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root = merkle_root(c1_cm_pos, c1_cm_path, c1_cm_hash);
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constrain_instance(root);
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# root of path at c1_sk_pos
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root_sk = merkle_root(c1_sk_pos, c1_sk_path, c1_sk);
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constrain_instance(root_sk);
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# coin (1) sn/nullifier
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sn = poseidon_hash(PREFIX_SN, c1_sk_root, c1_rho, ZERO);
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constrain_instance(sn);
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# lottery seed
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seed = poseidon_hash(PREFIX_SEED, c1_sk_root, c1_rho, ZERO);
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# y
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y = poseidon_hash(seed, mu_y);
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###
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constrain_instance(mu_y);
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constrain_instance(y);
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# rho
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rho = poseidon_hash(seed, mu_rho);
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constrain_instance(mu_rho);
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constrain_instance(rho);
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# target
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term1 = base_mul(sigma1, value);
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term2_1 = base_mul(sigma2, value);
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term2 = base_mul(term2_1, value);
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target = base_add(term1, term2);
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shifted_target = base_add(target, headstart);
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#lottery
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#constrain public value sigma1
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constrain_instance(sigma1);
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# constrain public value sigma2
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constrain_instance(sigma2);
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less_than_loose(y, shifted_target);
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}
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