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@@ -0,0 +1,50 @@
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+const fs = require('fs');
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+const RSA = require('node-rsa');
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+
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+const RSA_PUBLIC_KEY = fs.readFileSync('./rsa_public_key.txt', 'utf8');
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+
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+/**
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+ * 公钥加密
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+ *
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+ * @param {string} plaintext 明文
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+ * @return {string} 密文
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+ */
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+function public_key_encrypt(plaintext) {
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+ const rsa = new RSA({ b: 1024 });
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+ rsa.setOptions({ encryptionScheme: 'pkcs1' });
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+ rsa.importKey(RSA_PUBLIC_KEY, 'public');
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+ const encrypted = rsa.encrypt(plaintext, 'base64');
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+ return Buffer.from(encrypted).toString('base64');
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+}
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+
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+/**
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+ * 公钥解密
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+ *
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+ * @param {string} ciphertext 密文
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+ * @return {string} 明文
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+ */
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+function public_key_decrypt(ciphertext) {
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+ const rsa = new RSA({ b: 1024 });
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+ rsa.importKey(RSA_PUBLIC_KEY, 'public');
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+ const res = Buffer.from(ciphertext, 'base64').toString('ascii');
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+ return rsa.decryptPublic(res, 'utf8');
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+}
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+
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+// 交易数据
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+const transaction_data = JSON.stringify({
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+ amount: 99.99,
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+ backURL: 'http://dev.meemee.online:8080',
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+ currency: 'MMK',
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+ fee: 0.0,
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+ goods: 'bus',
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+ merchant: 'oway',
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+ merchantShortCode: '8810002',
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+ partnerRefNo: '5920992575054531'
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+});
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+const public_key_encrypted = public_key_encrypt(transaction_data);
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+console.log('public key encrypted: ', public_key_encrypted);
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+
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+// 交易结果
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+const encrypted_string = 'SkZzWUg0cTJQVkhnUURLMG84UWFrd3hYc2MyMHBOY3RYZlJNb3ZmMkR3dno5THU2VmJvaEhDN1Nkck14ZlZhd3NyN3JTOHY0M3JHVQ0KQVRlbVVHZWtRMVBwTUxlKzhEempiT1BldlJoRVpvMCsrcUJWcFJaWnNuUUd1aVJWZTllMXNSTi9tait1S2R3eHhMZ3U4Z3MzNk1tcA0KNFAwT3c1WDdDTXc5OVhSTGJOWjN3QncyZC9iTXNxTVM5Sjh1RDZOdmJmeHNlN0dkUUI2YWdRWGkyNEpmRytlVzEvNzZrQkdyKzhPVA0Kd1dTUG1FVER0YVZva3IrcE50KzEzZjVISUtGZTJKVDhMZW1RZTNmOE1kYkVGeHVhRGw2SE96WXlNeGRBR2NyMWNQREQ3ZWg4NkQ1Vw0KSDRtQVRMTDczQ1puTVhhMnpnbDd2YnUxWGpqdU1udkNRR3BIWUE9PQ==';
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+const decrypted = public_key_decrypt(encrypted_string);
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+console.log('public key decrypted: ', decrypted);
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