對於那些尋找一個簡單的如何做到這一點,我能夠創建一個:http://www.guilmo.com/fmdb-with-sqlcipher-tutorial/
但最重要的部分是,打開你現有的數據庫並附加一個新的加密的。然後在FMDB連接中設置密鑰。
SQLCipher - 加密數據庫
// Import sqlite3.h in your AppDelegate
#import <sqlite3.h>
// Set the new encrypted database path to be in the Documents Folder
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDir = [documentPaths objectAtIndex:0];
NSString *ecDB = [documentDir stringByAppendingPathComponent:@"encrypted.sqlite"];
// SQL Query. NOTE THAT DATABASE IS THE FULL PATH NOT ONLY THE NAME
const char* sqlQ = [[NSString stringWithFormat:@"ATTACH DATABASE '%@' AS encrypted KEY 'secretKey';",ecDB] UTF8String];
sqlite3 *unencrypted_DB;
if (sqlite3_open([self.databasePath UTF8String], &unencrypted_DB) == SQLITE_OK) {
// Attach empty encrypted database to unencrypted database
sqlite3_exec(unencrypted_DB, sqlQ, NULL, NULL, NULL);
// export database
sqlite3_exec(unencrypted_DB, "SELECT sqlcipher_export('encrypted');", NULL, NULL, NULL);
// Detach encrypted database
sqlite3_exec(unencrypted_DB, "DETACH DATABASE encrypted;", NULL, NULL, NULL);
sqlite3_close(unencrypted_DB);
}
else {
sqlite3_close(unencrypted_DB);
NSAssert1(NO, @"Failed to open database with message '%s'.", sqlite3_errmsg(unencrypted_DB));
}
self.databasePath = [documentDir stringByAppendingPathComponent:@"encrypted.sqlite"];
請注意,我們在SQL查詢的數據庫和密鑰設置2個參數。數據庫應該是完整路徑到您要創建的加密數據庫,在這種情況下,字符串ecDB,並且KEY參數是將用於加密您的數據庫的密鑰,因此請選擇強大的密鑰
現在您的FMDB功能,每次打開數據庫後,請撥打[db setKey:@「strongKey」]。
// FMDatabase Example
FMDatabase *db = [FMDatabase databaseWithPath:[self getDatabasePath]];
[db open];
[db setKey:@"secretKey"];
// FMDatabaseQueue Exmple
FMDatabaseQueue *queue = [FMDatabaseQueue databaseQueueWithPath:[self getDatabasePath]];
[queue inDatabase:^(FMDatabase *db) {
[db setKey:@"secretKey"];
...
}];
讓我知道如果您有任何問題!
啓動數據庫,做'PRAGMA REKEY'。關掉。再次啓動並執行'PRAGMA KEY <同一個鍵>',然後開始工作。 –