如何将pkcs8密钥文件转换为DER格式,以Xml格式获取私钥和公钥?
使用openssl我可以使用: openssl pkcs8 -inform DER -in aaa010101aaa_FIEL.key -out aaa.txt
aaa010101aaa_FIEL.key是bynary file
我正在尝试使用Bouncy Castle库,但我有问题要创建新的EncryptedPrivateKeyInfo(...
在java中有一个帖子要做,但我需要在c#中 How to read a password encrypted key with java?
答案 0 :(得分:1)
BouncyCastle文档相当稀疏,我还没有做到这一点,但你会想要使用Org.BouncyCastle.OpenSsl.PemReader将文件读入(可能)Org.BouncyCastle.Asn1.Pkcs.EncryptedPrivateKeyInfo ,像这样:
using (FileStream FS = File.Open("whatever.key"))
{
using (TextReader TR = new StreamReader(FS))
{
PR = new Org.BouncyCastle.OpenSsl.PemReader(TR);
EPKI = (Org.BouncyCastle.Asn1.Pkcs.EncryptedPrivateKeyInfo)PR.ReadObject();
}
}
然后EPKI.GetDerEncoded()会给你DER格式的东西。不能保证这会有效,但PemReader至少应该让你走上正轨。
答案 1 :(得分:1)
我找到了答案!
byte[] dataKey = File.ReadAllBytes(fileName);
Org.BouncyCastle.Crypto.AsymmetricKeyParameter asp =
Org.BouncyCastle.Security.PrivateKeyFactory.DecryptKey(pass.ToCharArray(), dataKey);
MemoryStream ms = new MemoryStream();
TextWriter writer = new StreamWriter(ms);
System.IO.StringWriter stWrite = new System.IO.StringWriter();
Org.BouncyCastle.OpenSsl.PemWriter pmw = new PemWriter(stWrite);
pmw.WriteObject(asp);
stWrite.Close();
return stWrite.ToString();