如何在golang中创建带密码的rsa私钥

所有这些都可以使用Golang的标准库来完成,该库非常完整.代码没什么难度所以我把它放在这里.所有这一切都是为了知道使用哪些功能.

import (
    "crypto/rand"
    "crypto/rsa"
    "crypto/x509"
    "encoding/pem"
)

func PrivateKeyToEncryptedPEM(bits int,pwd string) ([]byte,error) {
    // Generate the key of length bits
    key,err := rsa.GenerateKey(rand.Reader,bits)
    if err != nil {
        return nil,err
    }

    // Convert it to pem
    block := &pem.Block{
        Type:  "RSA PRIVATE KEY",Bytes: x509.MarshalPKCS1PrivateKey(key),}

    // Encrypt the pem
    if pwd != "" {
        block,err = x509.EncryptPEMBlock(rand.Reader,block.Type,block.Bytes,[]byte(pwd),x509.PEMCipherAES256)
        if err != nil {
            return nil,err
        }
    }

    return pem.EncodeToMemory(block),nil
}