node.js的加密模块.zip

var crypto=require("./crypto"); var sys=require("sys"); var fs=require("fs"); var test=require("mjsunit"); // Test HMAC var h1 = (new crypto.Hmac).init("sha1", "Node").update("some data").update("to hmac").digest("hex"); test.assertEquals(h1, '19fd6e1ba73d9ed2224dd5094a71babe85d9a892', "test HMAC"); // Test hashing var a0 = (new crypto.Hash).init("sha1").update("Test123").digest("hex"); var a1 = (new crypto.Hash).init("md5").update("Test123").digest("binary"); var a2= (new crypto.Hash).init("sha256").update("Test123").digest("base64"); var a3 = (new crypto.Hash).init("sha512").update("Test123").digest(); // binary // Test multiple updates to same hash var h1 = (new crypto.Hash).init("sha1").update("Test123").digest("hex"); var h2 = (new crypto.Hash).init("sha1").update("Test").update("123").digest("hex"); test.assertEquals(h1, h2, "multipled updates"); // Load our public and private keys var keyPem = fs.readFileSync("test_key.pem"); var certPem = fs.readFileSync("test_cert.pem"); // Test signing and verifying var s1 = (new crypto.Sign).init("RSA-SHA1").update("Test123").sign(keyPem, "base64"); var verified = !!((new crypto.Verify).init("RSA-SHA1").update("Test").update("123").verify(certPem, s1, "base64")); test.assertTrue(verified, "sign and verify (base 64)"); var s2 = (new crypto.Sign).init("RSA-SHA256").update("Test123").sign(keyPem); // binary var verified = !!((new crypto.Verify).init("RSA-SHA256").update("Test").update("123").verify(certPem, s2)); // binary test.assertTrue(verified, "sign and verify (binary)"); // Test encryption and decryption var plaintext="Keep this a secret? No! Tell everyone about node.js!"; var cipher=(new crypto.Cipher).init("aes192", "MySecretKey123"); var ciph=cipher.update(plaintext, 'utf8', 'hex'); // encrypt plaintext which is in utf8 format to a ciphertext which will be in hex ciph+=cipher.final('hex'); // Only use binary or hex, not base64. var decipher=(new crypto.Decipher).init("aes192", "MySecretKey123"); var txt = decipher.update(ciph, 'hex', 'utf8'); txt += decipher.final('utf8'); test.assertEquals(txt, plaintext, "encryption and decryption"); // Test encyrption and decryption with explicit key and iv var encryption_key='0123456789abcd0123456789'; var iv = '12345678'; var cipher=(new crypto.Cipher).initiv("des-ede3-cbc", encryption_key, iv); var ciph=cipher.update(plaintext, 'utf8', 'hex'); ciph+=cipher.final('hex'); var decipher=(new crypto.Decipher).initiv("des-ede3-cbc",encryption_key,iv); var txt = decipher.update(ciph, 'hex', 'utf8'); txt += decipher.final('utf8'); test.assertEquals(txt, plaintext, "encryption and decryption with key and iv");