99 lines
3.2 KiB
JavaScript
99 lines
3.2 KiB
JavaScript
/**
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* 分析原始卡号规律
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*/
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const { luhnCheck } = require('./src/shared/utils');
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// 原始样本数据
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const samples = [
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'6228367546781457|11|27|792',
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'6228367542738949|06|28|510',
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'6228367542602400|09|28|574',
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'6228367548575105|06|27|838',
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'6228367546496080|09|26|918',
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'6228367540057649|10|26|244',
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'6228367549574719|04|26|751',
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'6228367548435128|11|28|897',
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'6228367542797374|01|26|837',
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'6228367545956423|10|30|516',
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'6228367547237848|08|30|391',
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'6228367540385107|10|27|364',
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'6228367544252006|03|27|342',
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'6228367547562054|12|29|870'
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];
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console.log('=== 原始卡号规律分析 ===\n');
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// 解析数据
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const cards = samples.map(line => {
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const [number, month, year, cvv] = line.split('|');
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return { number, month, year, cvv };
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});
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// 1. 分析卡号结构
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console.log('1. 卡号结构分析:');
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console.log(` 总数量: ${cards.length}`);
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console.log(` 卡号长度: ${cards[0].number.length} 位`);
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// 检查前缀
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const prefixes = cards.map(c => c.number.substring(0, 9));
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const uniquePrefixes = [...new Set(prefixes)];
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console.log(` 共同前缀: ${uniquePrefixes[0]}`);
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console.log(` 前缀一致性: ${uniquePrefixes.length === 1 ? '✓ 是' : '✗ 否'}`);
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// 2. 检查Luhn算法
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console.log('\n2. Luhn算法校验:');
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let luhnValid = 0;
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cards.forEach((card, i) => {
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const isValid = luhnCheck(card.number);
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if (isValid) luhnValid++;
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console.log(` 卡${i + 1}: ${card.number} - ${isValid ? '✓ 通过' : '✗ 不通过'}`);
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});
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console.log(` 总结: ${luhnValid}/${cards.length} 通过Luhn校验`);
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// 3. 分析有效期
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console.log('\n3. 有效期分析:');
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const months = cards.map(c => parseInt(c.month));
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const years = cards.map(c => parseInt(c.year));
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console.log(` 月份范围: ${Math.min(...months)} - ${Math.max(...months)}`);
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console.log(` 年份范围: ${Math.min(...years)} - ${Math.max(...years)}`);
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// 4. 分析CVV
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console.log('\n4. CVV分析:');
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const cvvs = cards.map(c => parseInt(c.cvv));
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console.log(` CVV长度: ${cards[0].cvv.length} 位`);
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console.log(` CVV范围: ${Math.min(...cvvs)} - ${Math.max(...cvvs)}`);
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// 5. 分析后7位数字
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console.log('\n5. 后7位数字分析:');
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const suffixes = cards.map(c => c.number.substring(9));
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console.log(` 示例后7位:`);
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suffixes.slice(0, 5).forEach((suffix, i) => {
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console.log(` ${i + 1}. ${suffix}`);
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});
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// 6. 检查是否有数字模式
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console.log('\n6. 数字分布分析:');
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const allDigits = suffixes.join('').split('').map(d => parseInt(d));
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const digitCounts = {};
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for (let i = 0; i <= 9; i++) {
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digitCounts[i] = allDigits.filter(d => d === i).length;
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}
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console.log(' 各数字出现次数:');
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for (let i = 0; i <= 9; i++) {
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const bar = '█'.repeat(Math.floor(digitCounts[i] / 2));
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console.log(` ${i}: ${bar} (${digitCounts[i]})`);
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}
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console.log('\n=== 结论 ===');
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if (luhnValid === cards.length) {
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console.log('✓ 所有卡号都通过Luhn算法校验');
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console.log('✓ 建议: 启用Luhn算法生成');
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} else if (luhnValid === 0) {
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console.log('✗ 没有卡号通过Luhn算法校验');
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console.log('✓ 建议: 使用纯随机生成（当前实现）');
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} else {
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console.log('⚠ 部分卡号通过Luhn算法校验');
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console.log('⚠ 需要进一步分析规律');
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}
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