md5

问题 I am getting following results: C:\Program Files\Java\jdk1.7.0\bin>keytool -list -alias androiddebugkey -keystor e "C:\Documents and Settings\Administrator.android\debug.keystore" -storepass a ndroid -keypass android androiddebugkey, May 27, 2011, PrivateKeyEntry, Certificate fingerprint (SHA1): "Some Code" But after entering this in http://code.google.com/android/maps-api-signup.html for getting MAP API it is showing invalid fingerprint. Can you please guide me is the fingerprint I have got

问题 I am using the ExtJS framework. I have a MD5 function in JavaScript to encrypt some JSON. My backend uses Java so I wanted to know how to decrypt an MD5 Javascript encryption using Java ? Here is the JS equiv of MD5 function that I am using: Ext.util.MD5 = function(s,raw,hexcase,chrsz) { raw = raw || false; hexcase = hexcase || false; chrsz = chrsz || 8; function safe_add(x, y){ var lsw = (x & 0xFFFF) + (y & 0xFFFF); var msw = (x >> 16) + (y >> 16) + (lsw >> 16); return (msw << 16) | (lsw &

问题 I'm reading so much conflicting advice as to how to store passwords securely. All I know for sure is not to use MD5! I've seen people advocate using PHP's bcrypt function, which seems like it'd hog the server's processor. I've seen advocates for salts, and advocates for not using salts. It's all just so unclear. Is there real and credible advice as to how to store passwords securely? Edit: After a fair amount of research, I found an article from ;login: that deals with the topic in quite some

问题 Ok I am trying to write a basic converter of a string to md5 hash code but when I run my program I keep getting an error that say's: Traceback (most recent call last): File "C:\Users\Shane\Documents\Amer CISC\lab4.py", line 30, in <module> assertEqual (computeMD5hash("The quick brown fox jumps over the lazy dog"),("9e107d9d372bb6826bd81d3542a419d6")) File "C:\Users\Shane\Documents\Amer CISC\lab4.py", line 27, in computeMD5hash m.update(string) TypeError: Unicode-objects must be encoded before

问题 I'm facing kind of a strange issue which is related MD5-Hashes in Java and php5. I figured that unter certain circumstances the following code does not generate correct MD5 hashes: public static String getMD5Hash(String string) { try { MessageDigest md5 = MessageDigest.getInstance("MD5"); md5.update(string.getBytes()); byte[] digest = md5.digest(); string = byteArrToHexString(digest); } catch (NoSuchAlgorithmException e1) { e1.printStackTrace(); } return string; } private static String

问题 I'm using md5 from <CommonCrypto/CommonDigest.h> . I don't use it for encryption purposes. I know that in submitting an app to AppStore, it's asked if the app uses encryption. Is this the case to answer yes? 回答1: MD5 is not an encryption algorithm, it's a hashing algorithm. Encryption has to be reversible. 回答2: As it is not an encyrption, you can say "No" without hesitation. I use CC_MD5 in my projects too. I always say "No" when asked if the app uses encryption just before submitting. None

问题 I don't want to calculate a file's checksum, just to know if a given string is a valid checksum 回答1: SHA1 verifier: public boolean isValidSHA1(String s) { return s.matches("^[a-fA-F0-9]{40}$"); } MD5 verifier: public boolean isValidMD5(String s) { return s.matches("^[a-fA-F0-9]{32}$"); } 回答2: Any 160-bit sequence is a possible SHA1 hash. Any 128-bit sequence is a possible MD5 hash. If you're looking at the hex string representations of them, then a sha1 will look like 40 hexadecimal digits,

问题 I am calculating the MD5 in Android/Java as follows: byte raw[] = md.digest(); StringBuffer hexString = new StringBuffer(); for (int i=0; i<raw.length; i++) hexString.append(Integer.toHexString(0xFF & raw[i])); v_password = hexString.toString(); However there's a mismatch with PHP's md5() function. MD5 - PHP - Raw Value - catch12 - 214423105677f2375487b4c6880c12ae MD5 - JAVA - Raw Value - catch12 - 214423105677f2375487b4c688c12ae How is this caused and how can I solve it so that the both

问题 I'm trying to sign up for Android Google Maps and which requests MD5 fingerprint. How to get the fingerprint out of my application?? I'm newbie to keystore and couldn't understand a thing i find online. so simple instructions appreciated Thanks in advance 回答1: You will be needing two keystores. One for debug purpose and One for release purpose. While you are developing your application via eclipse and debugging it on simulator or device. You will be needing debug keystores. Otherwise you will

问题 I accidentally stopped hashing passwords before they were stored, so now my database has a mix of MD5 Passwords and unhashed passwords. I want to loop through and hash the ones that are not MD5. Is it possible to check if a string is an MD5 hash? 回答1: You can check using the following function: function isValidMd5($md5 ='') { return preg_match('/^[a-f0-9]{32}$/', $md5); } echo isValidMd5('5d41402abc4b2a76b9719d911017c592'); The MD5 ( Message-digest algorithm ) Hash is typically expressed in