dsbiw2911188
2018-05-22 07:28
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Golang中有与PHP openssl_pkey_get_private等效的东西吗?

I have to translate PHP code to Golang and I encoutered this problem.

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我必须将PHP代码转换为Golang,并且遇到了这个问题。

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1条回答 默认 最新

  • douzhan8652 2018-05-22 11:39
    已采纳

    Of course Go can load x509 private keys, but there is no "do-what-I-want" function, such as openssl_pkey_get_private.

    After PEM decoding the key (and possibly decrypting it), use one of the Parse*PrivateKey functions in the x509 package:

    package main
    
    import (
        "crypto"
        "crypto/x509"
        "encoding/pem"
        "fmt"
        "io/ioutil"
        "log"
        "strings"
    )
    
    func main() {
        pemBytes, err := ioutil.ReadFile("sample.key.pem")
        check(err)
    
        block := firstPrivateKey(pemBytes)
        if block == nil {
            log.Fatal("No private key in input")
        }
    
        derBytes := block.Bytes
        if x509.IsEncryptedPEMBlock(block) {
            derBytes, err = x509.DecryptPEMBlock(block, []byte("password"))
            check(err)
        }
    
        var key crypto.PrivateKey
        switch block.Type {
        case "RSA PRIVATE KEY":
            key, err = x509.ParsePKCS1PrivateKey(derBytes) // or PKCS8
            check(err)
        case "EC PRIVATE KEY":
            key, err = x509.ParseECPrivateKey(derBytes)
            check(err)
        default:
            log.Fatal("Unsupported key type")
        }
    
        fmt.Println(key)
    }
    
    func firstPrivateKey(pemBytes []byte) *pem.Block {
        var block *pem.Block
        for len(pemBytes) > 0 {
            block, pemBytes = pem.Decode(pemBytes)
            if strings.HasSuffix(block.Type, " PRIVATE KEY") {
                return block
            }
        }
        return nil
    }
    
    func check(err error) {
        if err != nil {
            log.Fatal(err)
        }
    }
    
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