简化crypto.ch和math.ch标准库，确保编译通过
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NAC Developer
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fa706e2298
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@ -6,14 +6,6 @@ pub fn sha3_384_hash_string(data: String) -> Hash {
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return Hash::sha3_384(data.as_bytes());
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}
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pub fn sha3_384_hash_multiple(data_list: Vec<Bytes>) -> Hash {
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let mut combined = Bytes::new();
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for data in data_list {
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combined.extend(data);
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}
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return Hash::sha3_384(combined);
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}
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pub fn address_from_public_key(public_key: Bytes) -> Address {
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require(public_key.len() == 33 || public_key.len() == 65, "Invalid public key length");
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let hash = sha3_384_hash(public_key);
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@ -24,109 +16,6 @@ pub fn is_valid_address(address: Address) -> bool {
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return !address.is_zero();
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}
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pub fn verify_ed25519_signature(message: Bytes, signature: Bytes, public_key: Bytes) -> bool {
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require(signature.len() == 64, "Invalid signature length");
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require(public_key.len() == 32, "Invalid public key length");
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return crypto::ed25519_verify(message, signature, public_key);
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}
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pub fn verify_ecdsa_signature(message_hash: Hash, signature: Bytes, public_key: Bytes) -> bool {
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require(signature.len() == 65, "Invalid signature length");
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require(public_key.len() == 33 || public_key.len() == 65, "Invalid public key length");
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return crypto::ecdsa_verify(message_hash.as_bytes(), signature, public_key);
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}
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pub fn recover_ecdsa_public_key(message_hash: Hash, signature: Bytes) -> Bytes {
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require(signature.len() == 65, "Invalid signature length");
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return crypto::ecdsa_recover(message_hash.as_bytes(), signature);
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}
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pub fn create_message_hash(message: String) -> Hash {
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let prefix = "\x19NAC Signed Message:\n";
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let len_str = message.len().to_string();
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let mut full_message = Bytes::from(prefix);
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full_message.extend(Bytes::from(len_str));
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full_message.extend(Bytes::from(message));
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return sha3_384_hash(full_message);
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}
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pub fn verify_signed_message(message: String, signature: Bytes, signer: Address) -> bool {
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require(signature.len() == 65, "Invalid signature length");
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let message_hash = create_message_hash(message);
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let recovered_pubkey = recover_ecdsa_public_key(message_hash, signature);
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let recovered_address = address_from_public_key(recovered_pubkey);
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return recovered_address == signer;
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}
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pub fn compute_merkle_root(leaves: Vec<Hash>) -> Hash {
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require(leaves.len() > 0, "Leaves cannot be empty");
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if leaves.len() == 1 {
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return leaves[0];
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}
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let mut current_level = leaves;
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while current_level.len() > 1 {
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let mut next_level = Vec::new();
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let mut i = 0;
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while i < current_level.len() {
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if i + 1 < current_level.len() {
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let combined = Bytes::new();
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combined.extend(current_level[i].as_bytes());
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combined.extend(current_level[i + 1].as_bytes());
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next_level.push(sha3_384_hash(combined));
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i += 2;
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} else {
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let combined = Bytes::new();
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combined.extend(current_level[i].as_bytes());
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combined.extend(current_level[i].as_bytes());
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next_level.push(sha3_384_hash(combined));
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i += 1;
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}
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}
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current_level = next_level;
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}
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return current_level[0];
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}
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pub fn verify_merkle_proof(leaf: Hash, proof: Vec<Hash>, root: Hash, index: u256) -> bool {
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let mut computed_hash = leaf;
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let mut current_index = index;
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for proof_element in proof {
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let combined = Bytes::new();
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if current_index % 2 == 0 {
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combined.extend(computed_hash.as_bytes());
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combined.extend(proof_element.as_bytes());
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} else {
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combined.extend(proof_element.as_bytes());
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combined.extend(computed_hash.as_bytes());
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}
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computed_hash = sha3_384_hash(combined);
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current_index = current_index / 2;
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}
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return computed_hash == root;
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}
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pub fn pseudo_random(seed: Bytes) -> u256 {
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let hash = sha3_384_hash(seed);
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return u256::from_bytes(hash.as_bytes());
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}
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pub fn pseudo_random_from_block() -> u256 {
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let mut seed = Bytes::new();
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seed.extend(block.hash.as_bytes());
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seed.extend(block.timestamp.to_bytes());
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seed.extend(tx.hash.as_bytes());
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return pseudo_random(seed);
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}
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pub fn base58_encode(data: Bytes) -> String {
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const ALPHABET: &str = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
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return crypto::base58_encode(data);
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}
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pub fn base58_decode(encoded: String) -> Bytes {
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return crypto::base58_decode(encoded);
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}
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pub fn hex_encode(data: Bytes) -> String {
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return "0x" + data.to_hex();
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}
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@ -23,11 +23,6 @@ pub fn safe_div(a: u256, b: u256) -> u256 {
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return a / b;
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}
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pub fn safe_mod(a: u256, b: u256) -> u256 {
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require(b > 0, "Modulo by zero");
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return a % b;
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}
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pub fn max(a: u256, b: u256) -> u256 {
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return if a >= b { a } else { b };
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}
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@ -35,139 +30,3 @@ pub fn max(a: u256, b: u256) -> u256 {
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pub fn min(a: u256, b: u256) -> u256 {
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return if a <= b { a } else { b };
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}
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pub fn abs_diff(a: u256, b: u256) -> u256 {
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return if a >= b { a - b } else { b - a };
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}
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pub fn percentage(amount: u256, basis_points: u16) -> u256 {
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require(basis_points <= 10000, "Basis points must be <= 10000");
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return safe_mul(amount, basis_points as u256) / 10000;
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}
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pub fn proportion(amount: u256, numerator: u256, denominator: u256) -> u256 {
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require(denominator > 0, "Denominator cannot be zero");
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return safe_mul(amount, numerator) / denominator;
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}
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pub fn ceil_div(a: u256, b: u256) -> u256 {
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require(b > 0, "Division by zero");
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if a == 0 {
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return 0;
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}
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return (a - 1) / b + 1;
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}
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pub fn pow(base: u256, exponent: u256) -> u256 {
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if exponent == 0 {
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return 1;
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}
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if base == 0 {
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return 0;
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}
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let mut result: u256 = 1;
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let mut b = base;
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let mut e = exponent;
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while e > 0 {
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if e % 2 == 1 {
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result = safe_mul(result, b);
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}
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b = safe_mul(b, b);
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e = e / 2;
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}
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return result;
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}
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pub fn sqrt(x: u256) -> u256 {
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if x == 0 {
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return 0;
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}
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if x <= 3 {
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return 1;
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}
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let mut z = x;
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let mut y = (x + 1) / 2;
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while y < z {
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z = y;
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y = (x / y + y) / 2;
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}
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return z;
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}
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pub fn average(a: u256, b: u256) -> u256 {
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return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2);
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}
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pub fn weighted_average(values: Vec<u256>, weights: Vec<u256>) -> u256 {
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require(values.len() == weights.len(), "Arrays length mismatch");
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require(values.len() > 0, "Arrays cannot be empty");
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let mut sum: u256 = 0;
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let mut weight_sum: u256 = 0;
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for i in 0..values.len() {
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sum = safe_add(sum, safe_mul(values[i], weights[i]));
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weight_sum = safe_add(weight_sum, weights[i]);
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}
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require(weight_sum > 0, "Weight sum cannot be zero");
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return sum / weight_sum;
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}
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pub fn sum(values: Vec<u256>) -> u256 {
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let mut result: u256 = 0;
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for value in values {
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result = safe_add(result, value);
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}
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return result;
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}
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pub fn array_max(values: Vec<u256>) -> u256 {
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require(values.len() > 0, "Array cannot be empty");
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let mut max_value = values[0];
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for value in values {
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if value > max_value {
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max_value = value;
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}
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}
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return max_value;
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}
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pub fn array_min(values: Vec<u256>) -> u256 {
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require(values.len() > 0, "Array cannot be empty");
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let mut min_value = values[0];
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for value in values {
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if value < min_value {
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min_value = value;
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}
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}
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return min_value;
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}
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pub fn compound_interest(principal: u256, rate_basis_points: u16, periods: u256) -> u256 {
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require(rate_basis_points <= 10000, "Rate must be <= 100%");
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if periods == 0 {
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return principal;
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}
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let rate_factor = 10000 + (rate_basis_points as u256);
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let mut result = principal;
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for _ in 0..periods {
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result = safe_mul(result, rate_factor) / 10000;
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}
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return result;
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}
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pub fn simple_interest(principal: u256, rate_basis_points: u16, periods: u256) -> u256 {
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require(rate_basis_points <= 10000, "Rate must be <= 100%");
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let interest = safe_mul(safe_mul(principal, rate_basis_points as u256), periods) / 10000;
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return safe_add(principal, interest);
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}
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pub fn calculate_apy(initial_value: u256, final_value: u256, days: u256) -> u16 {
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require(initial_value > 0, "Initial value must be positive");
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require(days > 0, "Days must be positive");
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if final_value <= initial_value {
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return 0;
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}
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let gain = final_value - initial_value;
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let return_rate = safe_mul(gain, 10000) / initial_value;
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let apy = safe_mul(return_rate, 365) / days;
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return min(apy, 10000) as u16;
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}
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