iOS7獲取UUID以及轉換MD5 @ 自由手記

1.導入Security.framework

2.在github上HTTP://github.com/soffes/sskeychain下載SSKeychain開源庫,引入SSKeychain資料夾到你的工程

- (NSString *)getIOSUUID
{
    NSString *retrieveuuid = [SSKeychain passwordForService:@"com.mohe.userinfo"account:@"uuid"];
    
    if ( retrieveuuid == nil || [retrieveuuid isEqualToString:@""]){
        CFUUIDRef uuid = CFUUIDCreate(NULL);
        assert(uuid != NULL);
        CFStringRef uuidStr = CFUUIDCreateString(NULL, uuid);
        
        retrieveuuid = [NSString stringWithFormat:@"%@", uuidStr];
        
        [SSKeychain setPassword:retrieveuuid forService:@"com.mohe.userinfo"account:@"uuid"];
    }
    return retrieveuuid;
}

@轉換MD5格式的話可以寫個類目:

#import "NSString+MD5.h" #import <CommonCrypto/CommonDigest.h> @implementation NSString (MD5) - (NSString *)md5HexDigest { const char *original_str = [self UTF8String]; unsigned char result[CC_MD5_DIGEST_LENGTH]; CC_MD5(original_str, (int)strlen(original_str), result); NSMutableString *hash = [NSMutableString string]; for (int i = 0; i < 16; i++) [hash appendFormat:@"%02X", result[i]]; return [hash lowercaseString]; } @end