iosdevelopertips.com 2023 著作権. 不許複製 プライバシーポリシー
iosdevelopertips.com 2023 著作権. 不許複製 プライバシーポリシー
Computing cryptographic hashes of files on iOS and Mac OS X using the CommonCrypto APIs is fairly easy, but doing it in a way that minimizes memory consumption even with large files can be a little more difficult… The other day, I was reading what some people were saying about this on a forum about iPhone development, and they thought they found the trick, but they still had a growing memory footp
This is my function. First println print correct hash to console but in the next row program crashes. Can you help me? func sha256(string: NSString) -> NSString { var data : NSData! = string.dataUsingEncoding(NSUTF8StringEncoding) var hash = [UInt8](count: Int(CC_SHA256_DIGEST_LENGTH), repeatedValue: 0) CC_SHA256(data.bytes, CC_LONG(data.length), &hash) let res = NSData(bytes: hash, length: Int(CC
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