在RSA中导入.net公共xml密钥到javascript
import .net public xml key to javascript in RSA
我有在c#中创建的XML公钥格式为:
<Modulus>rYDd94biRAJ1P6j68xjARl......and so on</Modulus>
<Exponent>A**B</Exponent>
我想在Javascript中创建这个密钥,并用它加密字符串,我该怎么做呢?
谢谢,
经过这么多小时的研究,测试,放弃,再研究等,为RSA互操作性的解决方案。net和Javascript,我找到了这个库:
http://www.jocys.com/Common/JsClasses/Documents/它们的类具有与服务器上的RSACryptoServiceProvider相同的工作代码。
你必须做什么:
从他们的Github下载源代码:https://github.com/JocysCom/JsClasses/archive/master.zip
将*.debug.js文件重命名为*.js。参见下面(3)的文件列表。
将所需文件添加到html页面
<script type="text/javascript" src="js/System.js"></script> <script type="text/javascript" src="js/System.IO.js"></script> <script type="text/javascript" src="js/System.Text.js"></script> <script type="text/javascript" src="js/System.Convert.js"></script> <script type="text/javascript" src="js/System.BigInt.js"></script> <script type="text/javascript" src="js/System.BitConverter.js"></script> <script type="text/javascript" src="js/System.Security.Cryptography.js"></script> <script type="text/javascript" src="js/System.Security.Cryptography.SHA1.js"></script> <script type="text/javascript" src="js/System.Security.Cryptography.HMACSHA1.js"></script> <script type="text/javascript" src="js/System.Security.Cryptography.RSA.js"></script>
添加以下javascript代码来加密您的文本:
function RsaEncrypt() { //a public key generated from their sample. //your should generate yours and stamp it here. var xmlParams = "<RSAKeyValue>" + "<Modulus>pxtmFnrGI6Sb8ziyY+NRUDuQ4b/ETw5WabQ4daFQqzsCEr/6J/LLBU/2D5mO5/Wu5U/Rya1E55aYFZeaZMNqAw==</Modulus>" + "<Exponent>AQAB</Exponent>" + "<P>2TsVXWPEvDIJv/gd2rX9k0UOyXuaYgoAchIH6vUicis=</P>" + "<Q>xO4+OYREQfqYRQK7y73+RaUG0IxobT0OQ0c+Ok2hc4k=</Q>" + "<DP>K7/xgpiIU9rECeyfnp/OjS14V+3T3vDivBaTj6eFI3c=</DP>" + "<DQ>K4N9ClZ4gp+tn6oP9t//XEIvtEsiE+kmyqTmUhmvMAk=</DQ>" + "<InverseQ>p7o4BOlKZQZ693R1ViZ66y5gTjUkNNTd2za7/1YGBCs=</InverseQ>" + "<D>XZqFVrYy4qhECruJgVZFp/GVuD5Y0gev88nVjl5r911QT+I8vgJSklTso7jTlpMtf2oe7UZ0WRWEtgPS3tZn4Q==</D>" + "</RSAKeyValue>"; var rsa = new System.Security.Cryptography.RSACryptoServiceProvider(); rsa.FromXmlString(xmlParams); // Encrypt var decryptedBytes = System.Text.Encoding.UTF8.GetBytes(text); var doOaepPadding = true; var encryptedBytes = rsa.Encrypt(decryptedBytes, doOaepPadding); var encryptedString = System.Convert.ToBase64String(encryptedBytes); return encryptedString; }
查找有关如何生成私钥和公钥的文档(上面的链接)。代码与您在服务器上手动编写。net的代码完全相同。
你也可以查看他们的测试页面
也可以在c#中以PEM格式保存公钥:
private static string ExportPublicKey(RSACryptoServiceProvider csp)
{
var parameters = csp.ExportParameters(false);
using (var stream = new MemoryStream())
{
var writer = new BinaryWriter(stream);
writer.Write((byte)0x30); // SEQUENCE
using (var innerStream = new MemoryStream())
{
var innerWriter = new BinaryWriter(innerStream);
EncodeIntegerBigEndian(innerWriter, new byte[] { 0x00 }); // Version
EncodeIntegerBigEndian(innerWriter, parameters.Modulus);
EncodeIntegerBigEndian(innerWriter, parameters.Exponent);
EncodeIntegerBigEndian(innerWriter, parameters.Exponent); // instead of parameters.D
EncodeIntegerBigEndian(innerWriter, parameters.Exponent); // instead of parameters.P
EncodeIntegerBigEndian(innerWriter, parameters.Exponent); // instead of parameters.Q
EncodeIntegerBigEndian(innerWriter, parameters.Exponent); // instead of parameters.DP
EncodeIntegerBigEndian(innerWriter, parameters.Exponent); // instead of parameters.DQ
EncodeIntegerBigEndian(innerWriter, parameters.Exponent); // instead of parameters.InverseQ
var length = (int)innerStream.Length;
EncodeLength(writer, length);
writer.Write(innerStream.GetBuffer(), 0, length);
}
char[] base64 = Convert.ToBase64String(stream.GetBuffer(), 0, (int)stream.Length).ToCharArray();
StringBuilder res = new StringBuilder();
res.AppendLine("-----BEGIN RSA PUBLIC KEY-----");
for (int i = 0; i < base64.Length; i += 64)
{
int l = Math.Min(64, base64.Length - i);
for (int j = 0; j < l; j++) res.Append(base64[i + j]);
res.AppendLine();
}
res.AppendLine("-----END RSA PUBLIC KEY-----");
return res.ToString();
}
}
private static void EncodeIntegerBigEndian(BinaryWriter stream, byte[] value, bool forceUnsigned = true)
{
stream.Write((byte)0x02); // INTEGER
var prefixZeros = 0;
for (var i = 0; i < value.Length; i++)
{
if (value[i] != 0) break;
prefixZeros++;
}
if (value.Length - prefixZeros == 0)
{
EncodeLength(stream, 1);
stream.Write((byte)0);
}
else
{
if (forceUnsigned && value[prefixZeros] > 0x7f)
{
// Add a prefix zero to force unsigned if the MSB is 1
EncodeLength(stream, value.Length - prefixZeros + 1);
stream.Write((byte)0);
}
else
{
EncodeLength(stream, value.Length - prefixZeros);
}
for (var i = prefixZeros; i < value.Length; i++)
{
stream.Write(value[i]);
}
}
}
private static void EncodeLength(BinaryWriter stream, int length)
{
if (length < 0) throw new ArgumentOutOfRangeException("length", "Length must be non-negative");
if (length < 0x80)
{
// Short form
stream.Write((byte)length);
}
else
{
// Long form
var temp = length;
var bytesRequired = 0;
while (temp > 0)
{
temp >>= 8;
bytesRequired++;
}
stream.Write((byte)(bytesRequired | 0x80));
for (var i = bytesRequired - 1; i >= 0; i--)
{
stream.Write((byte)(length >> (8 * i) & 0xff));
}
}
}
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