在Qt中编译botan示例时出错 [英] Error while compiling botan sample example in Qt

问题描述

我试图找出两天的错误，但仍然没有这个未知的原因。

I am trying to find out the error for two days but still haven't got this unknown reason figure out.

我已经配置和编译了Botan库。一切正常，但尝试编写此示例代码以运行时。

I have configured and compiled Botan library. Everything goes ok but when try to write this sample code to be run..

S2K* s2k = get_s2k("PBKDF2(SHA-256)");
s2k->set_iterations(4049);
SecureVector<byte> key_and_IV = s2k->derive_key(48, passphrase).bits_of();
SymmetricKey key(key_and_IV, 32);

它说错误：'class Botan :: PBKDF'没有名为'set_iterations'的成员

it says error: 'class Botan::PBKDF' has no member named 'set_iterations'

我如何解决这个问题？

推荐答案

Botan docs for v1。 11.1报告函数 get_s2k（）已被弃用，建议您使用 get_pbkdf（） 。

The Botan docs for v1.11.1 report that the function get_s2k() has been deprecated, recommending that you use get_pbkdf() instead.

get_sdk（algospec）只是返回调用 get_pbkdf（algo_spec）的结果， 类的实例

According to the docs, get_sdk(algospec) just returns the result of a call to get_pbkdf(algo_spec) which will give you a pointer to an instance of the class Botan::PBKDF.

首先，你的代码需要是这样的：

First things first then, your code needs to be something more like:

PBKDF *s2k = getpbkdf("PBKDF2(SHA-256)");

不知道你想要做什么 s2k 我不能帮助任何进一步，因为文档没有引用 PBKDF 的公共成员函数调用 set_iterations（）。你得到你提到的错误，因为 Botan :: PBKDF 真的没有成员名为 set_iterations 。您需要阅读文档，确定 set_iterations（）的目的是在您现在已弃用的示例中，因此如何在较新版本的库中实现该目的。

Unfortunately without knowing what you want to do with s2k I can't help any further, as the docs have no reference to a public member function of PBKDF called set_iterations(). You're getting the error you mention because Botan::PBKDF really does have no member named set_iterations. You need to read the docs, work out what the purpose of set_iterations() was in your now deprecated example and hence how to achieve that purpose in the newer version of the library.

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