如何获取代码签名的应用证书信息 [英] How to obtain codesigned application certificate info

问题描述

我很难找到答案解决我的编码问题。

I am having a tough time finding an answer to my codesigning issues.

我们有一个在Cocoa下编写的Mac OS应用程序。最后 - 我们做了我们的代码签名，但我想在可执行文件本身添加一个额外的安全检查。

We have an application for Mac OS written under Cocoa. Finally - we did our codesigning, but i would like to add an extra security check - within the executable itself.

我的想法是验证证书的指纹当前可执行文件在启动时进行签名。如果它缺失或无效（检查应用程序中的硬编码哈希） - 我们关闭它。

My idea is to validate the fingerprint of the certificate with which the current executable is signed when it is started. If it is missing or invalid (checked against a hardcoded hash within the application) - we shut it down.

到目前为止，我还没有能够如何获得

So far, i haven't been able how to obtain the certificate used to codesign the executable programatically and check its data.

有没有人知道如何做到这一点？

Does anyone have a clue on how to do this?

非常感谢！
Martin K。

Thank you veery much! Martin K.

推荐答案

感谢好友！

我设法做到了10.6与新的功能，但问题是我的目标是10.5和10.6，至少直到一些时间过去。

I managed to do it for 10.6 with the new functionality but the problem is i am targeting 10.5 and 10.6, at least until some time passes.

我必须抛出一些时间进入libsecurity_codesigning很快，所以这也可以为10.5完成。

I have to throw some more time into libsecurity_codesigning soon so this can be completed for 10.5 also.

但是，对于那些正在寻找现成的解决方案在这里，这里是我结束了： / p>

But, for people who are looking for ready solutions around here, here is what i ended up with:

SecStaticCodeRef ref = NULL;

NSURL * url = [NSURL URLWithString:[[NSBundle mainBundle] executablePath]]; 

OSStatus status;

// obtain the cert info from the executable
status = SecStaticCodeCreateWithPath((CFURLRef)url, kSecCSDefaultFlags, &ref);

if (ref == NULL) exit(EXIT_STATUS_ON_BAD_CODE_SIGNATURE);
if (status != noErr) exit(EXIT_STATUS_ON_BAD_CODE_SIGNATURE);

SecRequirementRef req = NULL;

// this is the public SHA1 fingerprint of the cert match string
NSString * reqStr = [NSString stringWithFormat:@"%@ %@ = %@%@%@",
    @"certificate",
    @"leaf",
    @"H\"66875745923F01",
    @"F122B387B0F943",
    @"X7D981183151\""
    ];

// create the requirement to check against
status = SecRequirementCreateWithString((CFStringRef)reqStr, kSecCSDefaultFlags, &req);

if (status != noErr) exit(EXIT_STATUS_ON_BAD_CODE_SIGNATURE);
if (req == NULL) exit(EXIT_STATUS_ON_BAD_CODE_SIGNATURE);

status = SecStaticCodeCheckValidity(ref, kSecCSCheckAllArchitectures, req);

if (status != noErr) exit(EXIT_STATUS_ON_BAD_CODE_SIGNATURE);

CFRelease(ref);
CFRelease(req);

LogDebug(@"Code signature was checked and it seems OK");

这篇关于如何获取代码签名的应用证书信息的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！