public static void FromPemStringStd(this RSA @this, string pemString)
{
pemString = pemString.Replace("\r\n", string.Empty);
string keyName;
if (pemString.StartsWith("-----BEGIN PRIVATE KEY-----"))
{
keyName = "PRIVATE";
}
else if (pemString.StartsWith("-----BEGIN PUBLIC KEY-----"))
{
keyName = "PUBLIC";
}
else
{
throw new ArgumentException("Can't analyze Pem string.");
}
pemString = pemString
.Replace($"-----BEGIN {keyName} KEY-----", string.Empty)
.Replace($"-----END {keyName} KEY-----", string.Empty);
var pem = Convert.FromBase64String(pemString);
var @params = RsaConverter.ParamsFromPem(pem, keyName == "PRIVATE");
@this.ImportParameters(@params);
}
public static string ToPemStringStd(this RSA @this, bool includePrivateParameters)
{
var keyName = includePrivateParameters ? "PRIVATE" : "PUBLIC";
var @params = @this.ExportParameters(includePrivateParameters);
var base64 = string.Join(Environment.NewLine, Convert.ToBase64String(
RsaConverter.ParamsToPem(@params, includePrivateParameters))
.ToCharArray().AsKvPairs()
.GroupBy(x => x.Key / 64)
.Select(g => new string(g.Select(x => x.Value).ToArray())));
return($"-----BEGIN {keyName} KEY-----\r\n{base64}\r\n-----END {keyName} KEY-----");
}