iOS SQLCipher SQLite加密 详解
官方集成文档：https://www.zetetic.net/sqlcipher/ios-tutorial/
从GitHub下载 SQLCipher到本地： https://github.com/sqlcipher/sqlcipher
1> 选择你的项目，右键，选择 "Add Files to [你的工程]"；在弹出的选择窗口找到你刚才从git下载的sqlcipher路径，打开sqlcipher文件夹，选择sqlcipher.xcodeproj
2> 点击工程，选择TARGETS中你的工程，点击 Build Phases Tab栏，展开 Target Dependencies 点击 ＋
3> 添加 sqlcipher 静态库
4> 展开Link Binary With Libraries
5> 添加+libsqlcipher.a库
注：如果你的工程库中已经添加了 libsqlite3.dylib 或者其他的SQLite库，请Remove掉，否则可能会提示出现重复sqlite库
6> 回到你的工程编辑面板，选择工程，TARGETS 你的工程Target， Build Settings Tab栏，选择 Header Search Paths 项，双击键入新值： ./sqlcipher/src
7> 选择 Other C Flags ，双击 添加 -DSQLITE_HAS_CODEC
注：Release 和 Debug的配置值一样
现在就可以直接使用 sqlite3 加密数据库
如代码：
#import "AppDelegate.h"
#import
@interface AppDelegate ()
@property (nonatomic) BOOL isLoginViewControllerDisplayed;
@property (readonly) NSURL *databaseURL;
@property (readonly) BOOL databaseExists;
@end
@implementation AppDelegate
@dynamic databaseURL;
@dynamic databaseExists;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
// Set up a SQLCipher database connection:
sqlite3 *db;
if (sqlite3_open([[self.databaseURL path] UTF8String], &db) == SQLITE_OK)
{
const char* key = [@"StrongPassword" UTF8String];
sqlite3_key(db, key, (int)strlen(key));
if (sqlite3_exec(db, (const char*) "SELECT count(*) FROM sqlite_master;", NULL, NULL, NULL) == SQLITE_OK)
{
NSLog(@"Password is correct, or a new database has been initialized");
}
else
{
NSLog(@"Incorrect password!");
}
sqlite3_close(db);
}
return YES;
}
- (NSURL *)databaseURL
{
NSArray *URLs = [[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask];
NSURL *directoryURL = [URLs firstObject];
NSURL *databaseURL = [directoryURL URLByAppendingPathComponent:@"secure.db"];
return databaseURL;
}
- (BOOL)databaseExists
{
BOOL exists = NO;
NSError *error = nil;
exists = [[self databaseURL] checkResourceIsReachableAndReturnError:&error];
if (exists == NO && error != nil)
{
NSLog(@"Error checking availability of database file: %@", error);
}
return exists;
}
@end
运行工程出现，如下日志表示运行成功
