extension String { var md5: String! { let str = self.cString(using: String.Encoding.utf8) let strLen = CC_LONG(self.lengthOfBytes(using: String.Encoding.utf8)) let digestLen = Int(CC_MD5_DIGEST_LENGTH) let result = UnsafeMutablePointer<CUnsignedChar>.allocate(capacity: digestLen) CC_MD5(str!,strLen,result) let hash = NSMutableString() for i in 0..<digestLen { hash.appendFormat("%02x",result[i]) } result.deallocate(capacity: digestLen) return String(format: hash as String) } }
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