在staticLibrary中加密字符串时出错

In my application I am using encryption and decryption.

在我的应用程序中，我使用加密和解密。

Before entering the string in to local database, I am encrypting that and after fetching the data from database I am decrypting it and using in my application. It is working fine. I have used encryption/decryption from link below

在将字符串输入本地数据库之前，我正在对其进行加密，并且在从数据库获取数据之后，我正在解密它并在我的应用程序中使用。它工作正常。我在下面的链接中使用了加密/解密

At the time of Encrypting:

在加密时：

    NSString *myKey=@"any string more than 8 char";

    NSData *data ; 
    NSData *encryptedData; 
    NSString *encryptPassword,*encryptPasscode;

    // 1) Encrypt

    data = [password dataUsingEncoding: NSASCIIStringEncoding];
    encryptedData = [data AESEncryptWithPassphrase:myKey];

    // 2) Encode Base 64

    [Base64 initialize];
    encryptPassword = [Base64 encode:encryptedData];

At the time of Decrypting :

在Decrypting时：

    NSData *decryptedData;
    NSData  *b64DecData;

    field1 = (char *) sqlite3_column_text(selectPasscodeStatement, 0);
    NSString *fieldStr1 = [[NSString alloc] initWithUTF8String: field1];

     // 3) Decode Base 64

      b64DecData = [Base64 decode:fieldStr1];

     // 4) Decrypt

       decryptedData = [b64DecData AESDecryptWithPassphrase:myKey];

       retrivedPasscode = [[NSString alloc] initWithData:decryptedData encoding:NSASCIIStringEncoding];

But I have made staticLibrary of that same project. I am using that staticLibrary in another project. When I run that project, at the time of encrypting it gave me error below

但我已经制作了同一个项目的staticLibrary。我在另一个项目中使用staticLibrary。当我运行该项目时，在加密时它给了我下面的错误

-[NSConcreteMutableData AESEncryptWithPassphrase:]: unrecognized selector sent to instance 0x6a3fe40

- [NSConcreteMutableData AESEncryptWithPassphrase：]：无法识别的选择器发送到实例0x6a3fe40

2 个解决方案

#1

You need to make change in the Build Settings of the project which will link the static library with the main project. Follow these steps:

您需要在项目的“构建设置”中进行更改，该项目将静态库与主项目链接起来。按着这些次序：

1)Click on Build Settings tab.

1）单击Build Settings选项卡。

2)Search for "Other Linker Flags".

2）搜索“其他链接标志”。

3)Add '-all_load' flag to it.

3）向其添加“-all_load”标志。

4)Build and run the project.

4）构建并运行项目。

It worked fine for me.

它对我来说很好。

#2

Did you import the category header file:

您是否导入了类别标题文件：

#import "NSData-AES.h"

I believe there is the AESDecryptWithPassphrase method defined. Without that the app does not know about the method.

我相信定义了AESDecryptWithPassphrase方法。没有它，应用程序不知道该方法。

Just to clarify - you have to import the category header file to every file where you want to use the capabilities added by that category.

只是为了澄清 - 您必须将类别头文件导入到您要使用该类别添加的功能的每个文件。

#1