public jwkPublicKey(CngKey cngKey)
{
switch (cngKey.Algorithm.Algorithm)
{
case "ECDH_P256":
this.crv = "P-256";
break;
case "ECDH_P384":
this.crv = "P-384";
break;
default:
throw new InvalidOperationException("Unsupported curve");
}
this.kty = "EC";
this.extractable = true;
byte[] keyBlob = cngKey.Export(CngKeyBlobFormat.EccPublicBlob);
// bytes 0-3 curve type; byte 4-7 key length; x bytes; y bytes
var keyLen = keyBlob[4];
byte[] xbytes = new byte[keyLen];
byte[] ybytes = new byte[keyLen];
Array.Copy(keyBlob, 8, xbytes, 0, keyLen);
Array.Copy(keyBlob, 8 + xbytes.Length, ybytes, 0, keyLen);
this.x = Base64Url.to(xbytes);
this.y = Base64Url.to(ybytes);
}
public jwkPublicKey(RSAParameters rsaKey)
{
this.kty = "RSA";
this.extractable = true;
this.n = Base64Url.to(rsaKey.Modulus);
this.e = Base64Url.to(rsaKey.Exponent);
}
public jwkPrivateKey(RSAParameters rsaKey)
: base(rsaKey)
{
this.d = Base64Url.to(rsaKey.D);
this.p = Base64Url.to(rsaKey.P);
this.q = Base64Url.to(rsaKey.Q);
this.dp = Base64Url.to(rsaKey.DP);
this.dq = Base64Url.to(rsaKey.DQ);
this.qi = Base64Url.to(rsaKey.InverseQ);
}
public jwkPublicKey(camelot.ECKeyPair ecKeyPair, string curveName)
{
EllipticCurvePointFp point =
SEC1EncodingFp.DecodePoint(ecKeyPair.ExportPublicKey(), ecKeyPair.Curve);
this.crv = curveName;
this.kty = "EC";
this.extractable = true;
byte[] xBytes = point.X.ToByteArrayUnsigned();
Array.Reverse(xBytes);
byte[] yBytes = point.Y.ToByteArrayUnsigned();
Array.Reverse(yBytes);
this.x = Base64Url.to(xBytes);
this.y = Base64Url.to(yBytes);
}
public jwkPrivateKey(camelot.ECKeyPair ecKeyPair, string curveName)
: base(ecKeyPair, curveName)
{
this.d = Base64Url.to(ecKeyPair.ExportPrivateKey());
}
