使用“certtostore”从 Golang 中的 Windows 证书存储获取证书时出错?

我想使用 Windows 证书商店的证书包,谁能告诉我我在这里做错了什么?


我的代码:


package main


import (

    "fmt"

    "runtime"


    "github.com/google/certtostore"

)


type certmgr struct {

    certToStore certtostore.CertStorage

}


func main() {

    if runtime.GOOS == "windows" {

        var cert certmgr

        certInStore, err := cert.certToStore.Cert()

        if err != nil {

            fmt.Println("message", "Error in getting system store certificate ...")

        }


        fmt.Println("Windows System Store Certificate", *certInStore)


    }

}


我得到的错误:


panic: runtime error: invalid memory address or nil pointer dereference

[signal 0xc0000005 code=0x0 addr=0x0 pc=0xbe2dda]


goroutine 1 [running]:

main.main()

        C:/Users/prajwal.bhagat/go/src/phoenix/mainsvc/cmd/main/test.go:17 +0x1a

exit status 2


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www说

您可以使用类似 的库google/certtostore,它是一个多平台包,允许您在 Linux 上使用 x509 证书,在 Windows 上使用证书存储。它不直接获取证书包,而是使用WindowscertGetCertificateChain调用,该调用从最终证书开始构建证书链上下文,并在可能的情况下返回到受信任的根 CA。它由 所使用CertWithContext(),它使用创建时提供的颁发者值执行证书查找WinCertStore。它返回证书及其 Windows 上下文,可用于执行其他操作,例如使用 查找私钥CertKey()。无效的内存地址或 nil 指针取消引用你需要初始化var cert certmgr更一般地说,您需要先获取商店,如本例所示:  fmt.Println("open cert store")    // Open the local cert store. Provider generally shouldn't matter, so use Software which is ubiquitous. See comments in getHostKey.    store, err := certtostore.OpenWinCertStore(certtostore.ProviderMSSoftware, "", []string{"localhost"}, nil, false)        if err != nil {        fmt.Errorf("OpenWinCertStore: %v", err)        return    }           fmt.Println("get cert from cert store")    // Obtain the first cert matching all of container/issuers/intermediates in the store.    // This function is indifferent to the provider the store was opened with, as the store lists certs    // from all providers.    crt, context, err := store.CertWithContext()    if err != nil {        fmt.Println("failed to get cert from cert store. ", err)        return    }        if crt == nil {        fmt.Println("no cert")        return    }    fmt.Println("get key from cert")    // Obtain the private key from the cert. This *should* work regardless of provider because    // the key is directly linked to the certificate.    key, err := store.CertKey(context)    if err != nil {        fmt.Printf("private key not found in %s, %s", store.ProvName, err)        return    }    if key == nil {        fmt.Println("no key")        return    }    fmt.Printf("find cert '%s' with private key in container '%s', algo '%s'\n", crt.Subject, key.Container, key.AlgorithmGroup)
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