C# (.NET) RSACryptoServiceProvider import/export x509 public 密钥 blob 和 PKCS8 私钥 blob
C# (.NET) RSACryptoServiceProvider import/export x509 public key blob and PKCS8 private key blob
首先让我声明我不是加密专家,但我了解基础知识。
我希望能够:
- 从 X509 Public 密钥 blob 获取 RSACryptoServiceProvider 实例
- 从 PKCS8 私钥 blob 获取 RSACryptoServiceProvider 实例
- 从 RSACryptoServiceProvider 实例导出 public 密钥作为 x509 Public 密钥 blob
- 将私钥从 RSACryptoServiceProvider 实例导出为 PKCS8 blob
首先,Java 中的 byte
与 .Net 中的 byte
不同。 Java 只有有符号整数,所以 Java byte
的范围从 -128 到 127,而 .Net byte
的范围从 0 到 255。但我不确定,如果这是问题所在,因为 Base64 字符串依赖于位模式。尝试在其正范围内使用更大的类型,并且只使用低 8 位。
其次,有关错误提供程序版本的消息可能表明上述原因,或者可能只是误导性文本,这不会真正有帮助。我记得我曾经遇到过同样的错误信息并且很难找到真正的原因。几分钟前的快速搜索也没有成功。就我而言,我的情况完全不同,所以我无法直接指出你的问题。相反,我会建议检查填充、加密模式、base64 转换和 RSA 算法周围的相关内容,并尝试找到一种替代方法来实现与您之前想要的相同。在前往那里的路上,您可能会偶然发现实际问题。
环顾了一整天后,我找到了这个 repository (thanks a lot jrnker) 并且我选择了能够实现目标 1、2 和 3 所需的代码。
由于 Jrnker 仅提供从 PKCS1 blob 获取 RSACryptoServiceProvider 的方法(而我需要的是从 PKCS8 blob 获取 RSACryptoServiceProvider)我一直在寻找实现目标 4。然后我发现 Michel Gallant's "opensslkey.cs"我选择了实现目标 4 所需的代码。
然后我开始用需要的方法和 classes 编译 class。
这是我的演示 class:
using System;
namespace RSAKeyTests
{
class Demo
{
static void Main(string[] args)
{
//EXPORTED KEYS
string importedPublicKeyBase64 = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhbVC4aUR+XRCepBcPlod69wruXqwW9yL/YJYvuaQ33QxUoAehQ0z4SuphHwEPxQp/qLqucmE6XKlEeTksFAmaGM88uuGessqMZmdu9WFhc07MWLTCifR43IRtGEeWeFSWjUI6mNRrShP3QQ3+Z6e7w+HRA2RpmgNgEhJRvECHAKpcpHvP9o5Sq6q/dIAyR6NEjRFhfud27rFtnWrLj+ZmIsScemvks4vh8V3n8EzxxRE8nzVuZYr4v4NNH+q95XgIadHZ1Y6ICXJgX2NfacNRQl9+SEv0Wo8lbmFSIO3jHqyiWuSugv7R3/rQPRXHT6HJAtw0tBiPOBitMkTzqOvIwIDAQAB";
string importedPrivateKeyBase64 = "MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCFtULhpRH5dEJ6kFw+Wh3r3Cu5erBb3Iv9gli+5pDfdDFSgB6FDTPhK6mEfAQ/FCn+ouq5yYTpcqUR5OSwUCZoYzzy64Z6yyoxmZ271YWFzTsxYtMKJ9HjchG0YR5Z4VJaNQjqY1GtKE/dBDf5np7vD4dEDZGmaA2ASElG8QIcAqlyke8/2jlKrqr90gDJHo0SNEWF+53busW2dasuP5mYixJx6a+Szi+HxXefwTPHFETyfNW5livi/g00f6r3leAhp0dnVjogJcmBfY19pw1FCX35IS/RajyVuYVIg7eMerKJa5K6C/tHf+tA9FcdPockC3DS0GI84GK0yRPOo68jAgMBAAECggEAJ/Dalr8RnHvPM/+Vnoaa847kfNaaggZixwq96eDEHAwAg82D0Gj+O2AolkvZlOI4HTmbdn4tNvMpPiwq6EQ5BOvIFCSpGltAMmraBHcnGK4S5ZDIy/rTJuc3RLPSNjUpvYqkLCgZCOnG2ZXeBrIMdgskc/69qIDir5RoV0m9QJJYU7pfrfErWYr/eqb1t7eZtTBAg+LAjKUMUq68WoJiBSBRPbAvlyFoc6tyk0ftngsF4OPVbwZQyYC2vLmxVrr1/YQbEgjpuJwQ0bONL6G9PAH6O+h10ILk9nyJY2c9gOXU0tz+foJ47naM12wCJETEy9JGeAiN4NLz5wRKTZzZwQKBgQDCOEJGDgtmSM0bDv4vPuxbacFgGTgRAKTs6sG9E1Cf3LNBLDP9OhfRkXFc192PmQRAktaZAN89zXeGxK1tLbJ3003qKXw05K3KOksVjJ7AH4Yhurv3VWmFZB8pryUsxIp+rm/5GLf4LfptUmBO6R4+jTfJVRBtK4A9KmkbY7BjgwKBgQCwPWayTgd0fmDqJxptWfPThcUw3/cG6EWTpnx1dSOdaBHzewRwq/8/i4vs314/onLggXgZTIkPU7y8ylTmz5KcaPIQkmRSSSL0Y2yzMGcHnylj7ysgBLw23k/PVzGSsMZ6ly7lE03SNQ3tyg6u0lc3pbT8ZLHf/x913stxSSiT4QKBgQChdgnKmZRqhS1WSGGSP3pZCJNFY9HTeLijaQqFOFB3hg/Tp37VDv2MMKCQsbi0z13UnP4glrQAehbbCBixQiMzMIx+ldx3UIEWNN4E3TGAwPROiCIJnY0q4rBxg/SgwgftBvF5oU4X2YluZuQ/1ddZ4ya0jq4oQ9jJgL9+kKKsJwKBgQCndbBfPEVZK7xqwT0bKp3EHxd/mU/gAFQcN9WKxgNRTdHAyOMvLD8c4jvSl2u2i2UcbejwIQkaxzZPLPH/XrywYgegN3mbtmLAVLi0iwla9KEfk+ImSlmMyTCMkw1HlTECyySEBhOr6T2S9Kt+8d5twcZ3DDb34DLEjS5CNoGYAQKBgDCEyhrg2lwyYwrL26ohNNuzgiabC5IKCgHlMpsUQjoCid9awCSb2iROf7iZIBoDyzXqgEQWTAf2clpJxgHz0necVw2sXP8wGcJXJ+e/lXNfPaC4z2QRnQ6i2iV88jRlWLK+S403hGnK0L/SDu9LtBhHwy6r/qRGT14ourqS6x7O";
byte[] importedPublicKeyBytes = Convert.FromBase64String(importedPublicKeyBase64);
byte[] importedPrivateKeyBytes = Convert.FromBase64String(importedPrivateKeyBase64);
//PRINT INFO
Console.WriteLine("------ IMPORTED KEY PAIR: ------\n");
Console.WriteLine("PUBLIC KEY:\n"+importedPublicKeyBase64+"\n\n");
Console.WriteLine("PRIVATE KEY:\n" + importedPrivateKeyBase64 + "\n\n");
//GENERATING RSACRYPTOSERVICEPROVIDER FROM X509 PUBLIC KEY BLOB
using (var providerFromX509pubKey = RSAKeyUtils.DecodePublicKey(importedPublicKeyBytes))
{
providerFromX509pubKey.PersistKeyInCsp = false; //DO NOT STORE IN KEYSTORE
//EXPORT TO X509 PUBLIC KEY BLOB
byte[] x509pubKeyBytes = RSAKeyUtils.PublicKeyToX509(providerFromX509pubKey.ExportParameters(false));
//CONVERT TO BASE64
string x509pubKeyBase64 = Convert.ToBase64String(x509pubKeyBytes);
//PRINT INFO
Console.WriteLine("------ PUBLIC KEY TO EXPORT ------");
Console.WriteLine("Public key to export matches imported? "+importedPublicKeyBase64.Equals(x509pubKeyBase64));
Console.WriteLine(x509pubKeyBase64+"\n\n");
}
//GENERATING RSACRYPTOSERVICEPROVIDER FROM PKCS8 PRIVATE KEY BLOB
using (var providerFromPKCS8privKey = RSAKeyUtils.DecodePrivateKeyInfo(importedPrivateKeyBytes))
{
providerFromPKCS8privKey.PersistKeyInCsp = false; //DO NOT STORE IN KEYSTORE
//EXPORT TO PKCS8 PRIVATE KEY BLOB
byte[] pkcs8privKeyBytes = RSAKeyUtils.PrivateKeyToPKCS8(providerFromPKCS1privKey.ExportParameters(true));
//CONVERT TO BASE64
string pkcs8privKeyBase64 = Convert.ToBase64String(pkcs8privKeyBytes);
//PRINT INFO
Console.WriteLine("------ PRIVATE KEY TO EXPORT ------");
Console.WriteLine("Private key to export matches imported? " + importedPrivateKeyBase64.Equals(pkcs8privKeyBase64));
Console.WriteLine(pkcs8privKeyBase64);
}
//PREVENTS THE PROGRAM FROM EXITING
Console.ReadKey();
}
}
}
Here's the "RSAKeyUtils" class i've compiled.
我希望这对其他人有用。
首先让我声明我不是加密专家,但我了解基础知识。
我希望能够:
- 从 X509 Public 密钥 blob 获取 RSACryptoServiceProvider 实例
- 从 PKCS8 私钥 blob 获取 RSACryptoServiceProvider 实例
- 从 RSACryptoServiceProvider 实例导出 public 密钥作为 x509 Public 密钥 blob
- 将私钥从 RSACryptoServiceProvider 实例导出为 PKCS8 blob
首先,Java 中的 byte
与 .Net 中的 byte
不同。 Java 只有有符号整数,所以 Java byte
的范围从 -128 到 127,而 .Net byte
的范围从 0 到 255。但我不确定,如果这是问题所在,因为 Base64 字符串依赖于位模式。尝试在其正范围内使用更大的类型,并且只使用低 8 位。
其次,有关错误提供程序版本的消息可能表明上述原因,或者可能只是误导性文本,这不会真正有帮助。我记得我曾经遇到过同样的错误信息并且很难找到真正的原因。几分钟前的快速搜索也没有成功。就我而言,我的情况完全不同,所以我无法直接指出你的问题。相反,我会建议检查填充、加密模式、base64 转换和 RSA 算法周围的相关内容,并尝试找到一种替代方法来实现与您之前想要的相同。在前往那里的路上,您可能会偶然发现实际问题。
环顾了一整天后,我找到了这个 repository (thanks a lot jrnker) 并且我选择了能够实现目标 1、2 和 3 所需的代码。
由于 Jrnker 仅提供从 PKCS1 blob 获取 RSACryptoServiceProvider 的方法(而我需要的是从 PKCS8 blob 获取 RSACryptoServiceProvider)我一直在寻找实现目标 4。然后我发现 Michel Gallant's "opensslkey.cs"我选择了实现目标 4 所需的代码。
然后我开始用需要的方法和 classes 编译 class。
这是我的演示 class:
using System;
namespace RSAKeyTests
{
class Demo
{
static void Main(string[] args)
{
//EXPORTED KEYS
string importedPublicKeyBase64 = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhbVC4aUR+XRCepBcPlod69wruXqwW9yL/YJYvuaQ33QxUoAehQ0z4SuphHwEPxQp/qLqucmE6XKlEeTksFAmaGM88uuGessqMZmdu9WFhc07MWLTCifR43IRtGEeWeFSWjUI6mNRrShP3QQ3+Z6e7w+HRA2RpmgNgEhJRvECHAKpcpHvP9o5Sq6q/dIAyR6NEjRFhfud27rFtnWrLj+ZmIsScemvks4vh8V3n8EzxxRE8nzVuZYr4v4NNH+q95XgIadHZ1Y6ICXJgX2NfacNRQl9+SEv0Wo8lbmFSIO3jHqyiWuSugv7R3/rQPRXHT6HJAtw0tBiPOBitMkTzqOvIwIDAQAB";
string importedPrivateKeyBase64 = "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";
byte[] importedPublicKeyBytes = Convert.FromBase64String(importedPublicKeyBase64);
byte[] importedPrivateKeyBytes = Convert.FromBase64String(importedPrivateKeyBase64);
//PRINT INFO
Console.WriteLine("------ IMPORTED KEY PAIR: ------\n");
Console.WriteLine("PUBLIC KEY:\n"+importedPublicKeyBase64+"\n\n");
Console.WriteLine("PRIVATE KEY:\n" + importedPrivateKeyBase64 + "\n\n");
//GENERATING RSACRYPTOSERVICEPROVIDER FROM X509 PUBLIC KEY BLOB
using (var providerFromX509pubKey = RSAKeyUtils.DecodePublicKey(importedPublicKeyBytes))
{
providerFromX509pubKey.PersistKeyInCsp = false; //DO NOT STORE IN KEYSTORE
//EXPORT TO X509 PUBLIC KEY BLOB
byte[] x509pubKeyBytes = RSAKeyUtils.PublicKeyToX509(providerFromX509pubKey.ExportParameters(false));
//CONVERT TO BASE64
string x509pubKeyBase64 = Convert.ToBase64String(x509pubKeyBytes);
//PRINT INFO
Console.WriteLine("------ PUBLIC KEY TO EXPORT ------");
Console.WriteLine("Public key to export matches imported? "+importedPublicKeyBase64.Equals(x509pubKeyBase64));
Console.WriteLine(x509pubKeyBase64+"\n\n");
}
//GENERATING RSACRYPTOSERVICEPROVIDER FROM PKCS8 PRIVATE KEY BLOB
using (var providerFromPKCS8privKey = RSAKeyUtils.DecodePrivateKeyInfo(importedPrivateKeyBytes))
{
providerFromPKCS8privKey.PersistKeyInCsp = false; //DO NOT STORE IN KEYSTORE
//EXPORT TO PKCS8 PRIVATE KEY BLOB
byte[] pkcs8privKeyBytes = RSAKeyUtils.PrivateKeyToPKCS8(providerFromPKCS1privKey.ExportParameters(true));
//CONVERT TO BASE64
string pkcs8privKeyBase64 = Convert.ToBase64String(pkcs8privKeyBytes);
//PRINT INFO
Console.WriteLine("------ PRIVATE KEY TO EXPORT ------");
Console.WriteLine("Private key to export matches imported? " + importedPrivateKeyBase64.Equals(pkcs8privKeyBase64));
Console.WriteLine(pkcs8privKeyBase64);
}
//PREVENTS THE PROGRAM FROM EXITING
Console.ReadKey();
}
}
}
Here's the "RSAKeyUtils" class i've compiled.
我希望这对其他人有用。