¡@
2014/10/15 ¤U¤È 10:09:57
iphone Programming Glossary: hashhttp://stackoverflow.com/questions/1684799/generate-hash-from-uiimage hash from UIImage I'm trying to compare two UIImages from the file system to see if they are the same. Obviously I can't use.. I'm trying to compare two UIImages from the file system to see if they are the same. Obviously I can't use NSObject's hash method since this returns a hash of the object and not the actual image data. I found code generate an MD5 hash from a string.. from the file system to see if they are the same. Obviously I can't use NSObject's hash method since this returns a hash of the object and not the actual image data. I found code generate an MD5 hash from a string but I haven't discovered how..
Decode sha1 string to normal string http://stackoverflow.com/questions/3492317/decode-sha1-string-to-normal-string length strlen s This is the destination uint8_t digest CC_SHA1_DIGEST_LENGTH 0 This one function does an unkeyed SHA1 hash of your hash data CC_SHA1 keyData.bytes keyData.length digest Now convert to NSData structure to make it usable again NSData.. s This is the destination uint8_t digest CC_SHA1_DIGEST_LENGTH 0 This one function does an unkeyed SHA1 hash of your hash data CC_SHA1 keyData.bytes keyData.length digest Now convert to NSData structure to make it usable again NSData out NSData.. digest length CC_SHA1_DIGEST_LENGTH description converts to hex but puts around it and spaces every 4 bytes NSString hash out description hash hash stringByReplacingOccurrencesOfString @ withString @ hash hash stringByReplacingOccurrencesOfString..
How to use tel: with * (star, asterisk) or # (hash, pound) on iOs? http://stackoverflow.com/questions/4660951/how-to-use-tel-with-star-asterisk-or-hash-pound-on-ios to use tel with star asterisk or # hash pound on iOs I'm trying to initial a call on the iphone with the tel url that has a in it. It properly brings up the call..
Using MD5 hash on a string in cocoa? [duplicate] http://stackoverflow.com/questions/652300/using-md5-hash-on-a-string-in-cocoa MD5 hash on a string in cocoa duplicate Possible Duplicate MD5 algorithm in Objective C I need to hash a string using the MD5 technique.. MD5 hash on a string in cocoa duplicate Possible Duplicate MD5 algorithm in Objective C I need to hash a string using the MD5 technique in cocoa. Any frameworks that are used must be able to be accessed on the iphone. please.. MD5 isn't encryption. So if you're looking for encryption you're looking in the wrong place. But if you just want to hash something using MD5 on an iPhone this should give you the information you need Import library #import CommonCrypto CommonDigest.h..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now want you to use . Edit 3 So this major point doesn't get lost in the comment noise do not use the MAC as UUID create a hash using the MAC . That hash will always create the same result every time even across reinstalls and apps if the hashing is.. this major point doesn't get lost in the comment noise do not use the MAC as UUID create a hash using the MAC . That hash will always create the same result every time even across reinstalls and apps if the hashing is done in the same way . Anyways.. a hash using the MAC . That hash will always create the same result every time even across reinstalls and apps if the hashing is done in the same way . Anyways nowadays 2013 this isn't necessary any more except if you need a stable device identifier..
Finding the closest point to a given point http://stackoverflow.com/questions/913576/finding-the-closest-point-to-a-given-point this question If you need better than O N you can only get that if you first pay N lg N for building a spatial hash of some sort a quadtree octree hash grid or similar . Then each test will be approximately O lg N and can be much better.. than O N you can only get that if you first pay N lg N for building a spatial hash of some sort a quadtree octree hash grid or similar . Then each test will be approximately O lg N and can be much better typically by caching the last location..
http://stackoverflow.com/questions/11889556/authenticating-requests-from-mobile-iphone-app-to-asp-net-web-api-feedback-re is used to identify the type of client that is accessing the web API iPhone Android Windows phone etc . Application's Hashing Salt This is a string that is used to salt hashes for user agnostic requests. Two strings are stored in the iPhone app's.. and allows the client to access the web API without sending the username and password in each request. User's Hashing Salt This is a string that is used to salt hashes for requests made against established user accounts. The iPhone will.. Create Account Client Sends New Account Data Username Password First Name Last Name etc.. Application ID UTC Timestamp Hash of UTC Timestamp Application ID salted with Application's Hashing Salt API Returns New User's Hashing Salt The idea here..
Decode sha1 string to normal string http://stackoverflow.com/questions/3492317/decode-sha1-string-to-normal-string @ withString @ hash hash stringByReplacingOccurrencesOfString @ withString @ NSLog @ Hash is @ for string @ hash str NSData dtt hash dataUsingEncoding NSUTF8StringEncoding dtt nsda NSString unhash dtt description..
Any (early) experiences with auto-renewable subscriptions for iOS http://stackoverflow.com/questions/5017731/any-early-experiences-with-auto-renewable-subscriptions-for-ios Subscription.verify_receipt_for b64_receipt APPLE_RECEIPT_VERIFY_URL_PRODUCTION if json_resp nil if json_resp.kind_of Hash if json_resp 'status' 21007 #try the sandbox then json_resp Subscription.verify_receipt_for b64_receipt APPLE_RECEIPT_VERIFY_URL_SANDBOX..
Generating cryptographically secure authentication tokens http://stackoverflow.com/questions/840537/generating-cryptographically-secure-authentication-tokens What are the best practices for generating this sort of token to be used for authentication For example we could... Hash SHA 256 etc a random string and store it in the database for the given user along with an expiration date. Do a simple lookup..
|
