add message exercises

2018-08-23 18:09:15 +08:00
parent 3b8f57d02f
commit d43d7eaaf6
51 changed files with 1713 additions and 122 deletions
@@ -0,0 +1,14 @@
+//
+//  NSString+MD5.h
+//  GIGA
+//
+//  Created by lianxiang on 2018/8/23.
+//  Copyright © 2018年 com.giga.ios. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+@interface NSString (MD5)
+//MD5加密
+- (NSString *)MD5;
+@end
@@ -0,0 +1,30 @@
+//
+//  NSString+MD5.m
+//  GIGA
+//
+//  Created by lianxiang on 2018/8/23.
+//  Copyright © 2018年 com.giga.ios. All rights reserved.
+//
+
+#import "NSString+MD5.h"
+#import <CommonCrypto/CommonDigest.h>
+@implementation NSString (MD5)
+//MD5加密
+- (NSString *)MD5{
+    
+        const char *ptr = [self UTF8String];
+        
+        unsigned char md5Buffer[CC_MD5_DIGEST_LENGTH];
+        
+        CC_MD5(ptr, (unsigned int)strlen(ptr), md5Buffer);
+        
+        NSMutableString *output = [NSMutableString stringWithCapacity:CC_MD5_DIGEST_LENGTH *2];
+        for (int i = 0; i<CC_MD5_DIGEST_LENGTH; i++) {
+            [output appendFormat:@"%02x",md5Buffer[i]];
+        }
+        
+        return output;
+    
+}
+
+@end