Coding style changes, added tests in for the md5, sha256, etc methods

test/simple/test-crypto.js

 require("../common");
-var fs = require('fs');
-var sys = require('sys');
 
-var have_openssl;
 try {
   var crypto = require('crypto');
-  have_openssl=true;
 } catch (e) {
-  have_openssl=false;
   puts("Not compiled with OPENSSL support.");
   process.exit();
 } 
 
+var fs = require('fs');
+var sys = require('sys');
+
+// Test Certificates
 var caPem = fs.readFileSync(fixturesDir+"/test_ca.pem", 'ascii');
 var certPem = fs.readFileSync(fixturesDir+"/test_cert.pem", 'ascii');
 var keyPem = fs.readFileSync(fixturesDir+"/test_key.pem", 'ascii');
@@ -26,9 +25,14 @@ assert.equal(h1, '19fd6e1ba73d9ed2224dd5094a71babe85d9a892', "test HMAC");
 // Test hashing
 var a0 = crypto.createHash("sha1").update("Test123").digest("hex");
 var a1 = crypto.createHash("md5").update("Test123").digest("binary");
-var a2=  crypto.createHash("sha256").update("Test123").digest("base64");
+var a2 = crypto.createHash("sha256").update("Test123").digest("base64");
 var a3 = crypto.createHash("sha512").update("Test123").digest(); // binary
 
+assert.equal(a0, '8308651804facb7b9af8ffc53a33a22d6a1c8ac2', 'Test SHA1');
+assert.equal(a1, 'h\u00ea\u00cb\u0097\u00d8o\fF!\u00fa+\u000e\u0017\u00ca\u00bd\u008c', 'Test MD5 as binary');
+assert.equal(a2, '2bX1jws4GYKTlxhloUB09Z66PoJZW+y+hq5R8dnx9l4=', 'Test SHA256 as base64');
+assert.equal(a3, '\u00c1(4\u00f1\u0003\u001fd\u0097!O\'\u00d4C/&Qz\u00d4\u0094\u0015l\u00b8\u008dQ+\u00db\u001d\u00c4\u00b5}\u00b2\u00d6\u0092\u00a3\u00df\u00a2i\u00a1\u009b\n\n*\u000f\u00d7\u00d6\u00a2\u00a8\u0085\u00e3<\u0083\u009c\u0093\u00c2\u0006\u00da0\u00a1\u00879(G\u00ed\'', 'Test SHA512 as assumed binary');
+
 // Test multiple updates to same hash
 var h1 = crypto.createHash("sha1").update("Test123").digest("hex");
 var h2 = crypto.createHash("sha1").update("Test").update("123").digest("hex");
@@ -45,28 +49,31 @@ var verified = crypto.createVerify("RSA-SHA256").update("Test").update("123").ve
 assert.ok(verified, "sign and verify (binary)");
 
 // Test encryption and decryption
-var plaintext="Keep this a secret? No! Tell everyone about node.js!";
+var plaintext = "Keep this a secret? No! Tell everyone about node.js!";
+var cipher = crypto.createCipher("aes192", "MySecretKey123");
 
-var cipher=crypto.createCipher("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.
+// encrypt plaintext which is in utf8 format to a ciphertext which will be in hex
+var ciph = cipher.update(plaintext, 'utf8', 'hex');
+// Only use binary or hex, not base64.
+ciph += cipher.final('hex');
 
-var decipher=crypto.createDecipher("aes192", "MySecretKey123");
+var decipher = crypto.createDecipher("aes192", "MySecretKey123");
 var txt = decipher.update(ciph, 'hex', 'utf8');
 txt += decipher.final('utf8');
+
 assert.equal(txt, plaintext, "encryption and decryption");
 
 // Test encyrption and decryption with explicit key and iv
-var encryption_key='0123456789abcd0123456789';
+var encryption_key = '0123456789abcd0123456789';
 var iv = '12345678';
 
-var cipher=crypto.createCipheriv("des-ede3-cbc", encryption_key, iv);
+var cipher = crypto.createCipheriv("des-ede3-cbc", encryption_key, iv);
+var ciph = cipher.update(plaintext, 'utf8', 'hex'); 
+ciph += cipher.final('hex');
 
-var ciph=cipher.update(plaintext, 'utf8', 'hex'); 
-ciph+=cipher.final('hex');
-
-var decipher=crypto.createDecipheriv("des-ede3-cbc",encryption_key,iv);
+var decipher = crypto.createDecipheriv("des-ede3-cbc",encryption_key,iv);
 var txt = decipher.update(ciph, 'hex', 'utf8');
 txt += decipher.final('utf8');
+
 assert.equal(txt, plaintext, "encryption and decryption with key and iv");