# < Summary

Information

Class: | Renci.SshNet.Security.EcdsaKey
Assembly: | Renci.SshNet
File(s): | \home\appveyor\projects\ssh-net\src\Renci.SshNet\Security\Cryptography\EcdsaKey.cs

Line coverage
72%

Covered lines: | 168
Uncovered lines: | 63
Coverable lines: | 231
Total lines: | 511
Line coverage: | 72.7%

Branch coverage
66%

Covered branches: | 56
Total branches: | 84
Branch coverage: | 66.6%

Method coverage

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# Metrics

Method | Branch coverage | Cyclomatic complexity | Line coverage
--- | --- | --- | ---
ToString() | 100% | 1 | 100%
get_HashAlgorithm() | 0% | 6 | 0%
get_HashAlgorithm() | 83.33% | 6 | 85.71%
get_KeyLength() | 100% | 1 | 100%
get_DigitalSignature() | 100% | 2 | 100%
get_Public() | 83.33% | 6 | 94.44%
set_Public(...) | 100% | 1 | 0%
get_PrivateKey() | 100% | 1 | 100%
get_Ecdsa() | 100% | 1 | 100%
.ctor() | 100% | 1 | 0%
.ctor(...) | 100% | 1 | 100%
.ctor(...) | 50% | 8 | 72.41%
Import(...) | 100% | 2 | 100%
GetCurveOid(...) | 83.33% | 6 | 85.71%
GetCurveName(...) | 83.33% | 6 | 85.71%
OidByteArrayToString(...) | 100% | 6 | 100%
Dispose() | 100% | 1 | 0%
Dispose(...) | 50% | 4 | 44.44%
Finalize() | 100% | 1 | 100%

# File(s)

## \home\appveyor\projects\ssh-net\src\Renci.SshNet\Security\Cryptography\EcdsaKey.cs

| # | Line |  | Line coverage
--- | --- | --- | --- | ---
|  | `1` |  | `using System;`
|  | `2` |  | `#if NETFRAMEWORK`
|  | `3` |  | `using System.Globalization;`
|  | `4` |  | `using System.IO;`
|  | `5` |  | `using System.Runtime.InteropServices;`
|  | `6` |  | `#endif // NETFRAMEWORK`
|  | `7` |  | `using System.Security.Cryptography;`
|  | `8` |  | `using System.Text;`
|  | `9` |  | ``
|  | `10` |  | `using Renci.SshNet.Common;`
|  | `11` |  | `using Renci.SshNet.Security.Cryptography;`
|  | `12` |  | ``
|  | `13` |  | `namespace Renci.SshNet.Security`
|  | `14` |  | `{`
|  | `15` |  | `/// <summary>`
|  | `16` |  | `/// Contains ECDSA (ecdsa-sha2-nistp{256,384,521}) private and public key.`
|  | `17` |  | `/// </summary>`
|  | `18` |  | `public class EcdsaKey : Key, IDisposable`
|  | `19` |  | `{`
|  | `20` |  | `#pragma warning disable SA1310 // Field names should not contain underscore`
|  | `21` |  | `private const string ECDSA_P256_OID_VALUE = "1.2.840.10045.3.1.7"; // Also called nistP256 or secP256r1`
|  | `22` |  | `private const string ECDSA_P384_OID_VALUE = "1.3.132.0.34"; // Also called nistP384 or secP384r1`
|  | `23` |  | `private const string ECDSA_P521_OID_VALUE = "1.3.132.0.35"; // Also called nistP521or secP521r1`
|  | `24` |  | `#pragma warning restore SA1310 // Field names should not contain underscore`
|  | `25` |  | ``
|  | `26` |  | `private EcdsaDigitalSignature _digitalSignature;`
|  | `27` |  | `private bool _isDisposed;`
|  | `28` |  | ``
|  | `29` |  | `#if NETFRAMEWORK`
|  | `30` |  | `private CngKey _key;`
|  | `31` |  | ``
|  | `32` |  | `internal enum KeyBlobMagicNumber`
|  | `33` |  | `{`
|  | `34` |  | `BCRYPT_ECDSA_PUBLIC_P256_MAGIC = 0x31534345,`
|  | `35` |  | `BCRYPT_ECDSA_PRIVATE_P256_MAGIC = 0x32534345,`
|  | `36` |  | `BCRYPT_ECDSA_PUBLIC_P384_MAGIC = 0x33534345,`
|  | `37` |  | `BCRYPT_ECDSA_PRIVATE_P384_MAGIC = 0x34534345,`
|  | `38` |  | `BCRYPT_ECDSA_PUBLIC_P521_MAGIC = 0x35534345,`
|  | `39` |  | `BCRYPT_ECDSA_PRIVATE_P521_MAGIC = 0x36534345,`
|  | `40` |  | ``
|  | `41` |  | `BCRYPT_ECDH_PUBLIC_P256_MAGIC = 0x314B4345,`
|  | `42` |  | `BCRYPT_ECDH_PRIVATE_P256_MAGIC = 0x324B4345,`
|  | `43` |  | `BCRYPT_ECDH_PUBLIC_P384_MAGIC = 0x334B4345,`
|  | `44` |  | `BCRYPT_ECDH_PRIVATE_P384_MAGIC = 0x344B4345,`
|  | `45` |  | `BCRYPT_ECDH_PUBLIC_P521_MAGIC = 0x354B4345,`
|  | `46` |  | `BCRYPT_ECDH_PRIVATE_P521_MAGIC = 0x364B4345,`
|  | `47` |  | ``
|  | `48` |  | `BCRYPT_ECDH_PUBLIC_GENERIC_MAGIC = 0x504B4345,`
|  | `49` |  | `BCRYPT_ECDH_PRIVATE_GENERIC_MAGIC = 0x564B4345,`
|  | `50` |  | `}`
|  | `51` |  | ``
|  | `52` |  | `[StructLayout(LayoutKind.Sequential)]`
|  | `53` |  | `internal struct BCRYPT_ECCKEY_BLOB`
|  | `54` |  | `{`
|  | `55` |  | `internal KeyBlobMagicNumber Magic;`
|  | `56` |  | `internal int CbKey;`
|  | `57` |  | `}`
|  | `58` |  | `#endif`
|  | `59` |  | ``
|  | `60` |  | `/// <summary>`
|  | `61` |  | `/// Gets the SSH name of the ECDSA Key.`
|  | `62` |  | `/// </summary>`
|  | `63` |  | `/// <returns>`
|  | `64` |  | `/// The SSH name of the ECDSA Key.`
|  | `65` |  | `/// </returns>`
|  | `66` |  | `public override string ToString()`
| 39 | `67` |  | `{`
| 39 | `68` |  | `return string.Format("ecdsa-sha2-nistp{0}", KeyLength);`
| 39 | `69` |  | `}`
|  | `70` |  | ``
|  | `71` |  | `#if NETFRAMEWORK`
|  | `72` |  | `/// <summary>`
|  | `73` |  | `/// Gets the HashAlgorithm to use.`
|  | `74` |  | `/// </summary>`
|  | `75` |  | `public CngAlgorithm HashAlgorithm`
|  | `76` |  | `{`
|  | `77` |  | `get`
| 0 | `78` |  | `{`
| 0 | `79` |  | `switch (Ecdsa.KeySize)`
|  | `80` |  | `{`
|  | `81` |  | `case 256:`
| 0 | `82` |  | `return CngAlgorithm.Sha256;`
|  | `83` |  | `case 384:`
| 0 | `84` |  | `return CngAlgorithm.Sha384;`
|  | `85` |  | `case 521:`
| 0 | `86` |  | `return CngAlgorithm.Sha512;`
|  | `87` |  | `default:`
| 0 | `88` |  | `throw new SshException("Unknown KeySize: " + Ecdsa.KeySize.ToString(CultureInfo.InvariantCulture`
|  | `89` |  | `}`
| 0 | `90` |  | `}`
|  | `91` |  | `}`
|  | `92` |  | `#else`
|  | `93` |  | `/// <summary>`
|  | `94` |  | `/// Gets the HashAlgorithm to use.`
|  | `95` |  | `/// </summary>`
|  | `96` |  | `public HashAlgorithmName HashAlgorithm`
|  | `97` |  | `{`
|  | `98` |  | `get`
| 3 | `99` |  | `{`
| 3 | `100` |  | `switch (KeyLength)`
|  | `101` |  | `{`
|  | `102` |  | `case 256:`
| 1 | `103` |  | `return HashAlgorithmName.SHA256;`
|  | `104` |  | `case 384:`
| 1 | `105` |  | `return HashAlgorithmName.SHA384;`
|  | `106` |  | `case 521:`
| 1 | `107` |  | `return HashAlgorithmName.SHA512;`
|  | `108` |  | `default:`
| 0 | `109` |  | `return HashAlgorithmName.SHA256;`
|  | `110` |  | `}`
| 3 | `111` |  | `}`
|  | `112` |  | `}`
|  | `113` |  | `#endif`
|  | `114` |  | ``
|  | `115` |  | `/// <summary>`
|  | `116` |  | `/// Gets the length of the key.`
|  | `117` |  | `/// </summary>`
|  | `118` |  | `/// <value>`
|  | `119` |  | `/// The length of the key.`
|  | `120` |  | `/// </value>`
|  | `121` |  | `public override int KeyLength`
|  | `122` |  | `{`
|  | `123` |  | `get`
| 42 | `124` |  | `{`
| 42 | `125` |  | `return Ecdsa.KeySize;`
| 42 | `126` |  | `}`
|  | `127` |  | `}`
|  | `128` |  | ``
|  | `129` |  | `/// <summary>`
|  | `130` |  | `/// Gets the digital signature.`
|  | `131` |  | `/// </summary>`
|  | `132` |  | `protected internal override DigitalSignature DigitalSignature`
|  | `133` |  | `{`
|  | `134` |  | `get`
| 39 | `135` |  | `{`
| 39 | `136` |  | `_digitalSignature ??= new EcdsaDigitalSignature(this);`
|  | `137` |  | ``
| 39 | `138` |  | `return _digitalSignature;`
| 39 | `139` |  | `}`
|  | `140` |  | `}`
|  | `141` |  | ``
|  | `142` |  | `/// <summary>`
|  | `143` |  | `/// Gets or sets the public.`
|  | `144` |  | `/// </summary>`
|  | `145` |  | `/// <value>`
|  | `146` |  | `/// The public.`
|  | `147` |  | `/// </value>`
|  | `148` |  | `public override BigInteger[] Public`
|  | `149` |  | `{`
|  | `150` |  | `get`
| 3 | `151` |  | `{`
|  | `152` |  | `byte[] curve;`
|  | `153` |  | `byte[] qx;`
|  | `154` |  | `byte[] qy;`
|  | `155` |  | `#if NETFRAMEWORK`
| 0 | `156` |  | `var blob = _key.Export(CngKeyBlobFormat.EccPublicBlob);`
|  | `157` |  | ``
|  | `158` |  | `KeyBlobMagicNumber magic;`
| 0 | `159` |  | `using (var br = new BinaryReader(new MemoryStream(blob)))`
| 0 | `160` |  | `{`
| 0 | `161` |  | `magic = (KeyBlobMagicNumber)br.ReadInt32();`
| 0 | `162` |  | `var cbKey = br.ReadInt32();`
| 0 | `163` |  | `qx = br.ReadBytes(cbKey);`
| 0 | `164` |  | `qy = br.ReadBytes(cbKey);`
| 0 | `165` |  | `}`
|  | `166` |  | ``
|  | `167` |  | `#pragma warning disable IDE0010 // Add missing cases`
| 0 | `168` |  | `switch (magic)`
|  | `169` |  | `{`
|  | `170` |  | `case KeyBlobMagicNumber.BCRYPT_ECDSA_PUBLIC_P256_MAGIC:`
| 0 | `171` |  | `curve = Encoding.ASCII.GetBytes("nistp256");`
| 0 | `172` |  | `break;`
|  | `173` |  | `case KeyBlobMagicNumber.BCRYPT_ECDSA_PUBLIC_P384_MAGIC:`
| 0 | `174` |  | `curve = Encoding.ASCII.GetBytes("nistp384");`
| 0 | `175` |  | `break;`
|  | `176` |  | `case KeyBlobMagicNumber.BCRYPT_ECDSA_PUBLIC_P521_MAGIC:`
| 0 | `177` |  | `curve = Encoding.ASCII.GetBytes("nistp521");`
| 0 | `178` |  | `break;`
|  | `179` |  | `default:`
| 0 | `180` |  | `throw new SshException("Unexpected Curve Magic: " + magic);`
|  | `181` |  | `}`
|  | `182` |  | `#pragma warning restore IDE0010 // Add missing cases`
|  | `183` |  | `#else`
| 3 | `184` |  | `var parameter = Ecdsa.ExportParameters(includePrivateParameters: false);`
| 3 | `185` |  | `qx = parameter.Q.X;`
| 3 | `186` |  | `qy = parameter.Q.Y;`
| 3 | `187` |  | `switch (parameter.Curve.Oid.FriendlyName)`
|  | `188` |  | `{`
|  | `189` |  | `case "ECDSA_P256":`
|  | `190` |  | `case "nistP256":`
| 1 | `191` |  | `curve = Encoding.ASCII.GetBytes("nistp256");`
| 1 | `192` |  | `break;`
|  | `193` |  | `case "ECDSA_P384":`
|  | `194` |  | `case "nistP384":`
| 1 | `195` |  | `curve = Encoding.ASCII.GetBytes("nistp384");`
| 1 | `196` |  | `break;`
|  | `197` |  | `case "ECDSA_P521":`
|  | `198` |  | `case "nistP521":`
| 1 | `199` |  | `curve = Encoding.ASCII.GetBytes("nistp521");`
| 1 | `200` |  | `break;`
|  | `201` |  | `default:`
| 0 | `202` |  | `throw new SshException("Unexpected Curve Name: " + parameter.Curve.Oid.FriendlyName);`
|  | `203` |  | `}`
|  | `204` |  | `#endif`
|  | `205` |  | ``
|  | `206` |  | `// Make ECPoint from x and y`
|  | `207` |  | `// Prepend 04 (uncompressed format) + qx-bytes + qy-bytes`
| 3 | `208` |  | `var q = new byte[1 + qx.Length + qy.Length];`
| 3 | `209` |  | `Buffer.SetByte(q, 0, 4);`
| 3 | `210` |  | `Buffer.BlockCopy(qx, 0, q, 1, qx.Length);`
| 3 | `211` |  | `Buffer.BlockCopy(qy, 0, q, qx.Length + 1, qy.Length);`
|  | `212` |  | ``
|  | `213` |  | `// returns Curve-Name and x/y as ECPoint`
| 3 | `214` |  | `return new[] { new BigInteger(curve.Reverse()), new BigInteger(q.Reverse()) };`
| 3 | `215` |  | `}`
|  | `216` |  | `set`
| 0 | `217` |  | `{`
| 0 | `218` |  | `var curve_s = Encoding.ASCII.GetString(value[0].ToByteArray().Reverse());`
| 0 | `219` |  | `var curve_oid = GetCurveOid(curve_s);`
|  | `220` |  | ``
| 0 | `221` |  | `var publickey = value[1].ToByteArray().Reverse();`
| 0 | `222` |  | `Import(curve_oid, publickey, privatekey: null);`
| 0 | `223` |  | `}`
|  | `224` |  | `}`
|  | `225` |  | ``
|  | `226` |  | `/// <summary>`
|  | `227` |  | `/// Gets the PrivateKey Bytes.`
|  | `228` |  | `/// </summary>`
| 39 | `229` |  | `public byte[] PrivateKey { get; private set; }`
|  | `230` |  | ``
|  | `231` |  | `/// <summary>`
|  | `232` |  | `/// Gets the <see cref="ECDsa"/> object.`
|  | `233` |  | `/// </summary>`
| 87 | `234` |  | `public ECDsa Ecdsa { get; private set; }`
|  | `235` |  | ``
|  | `236` |  | `/// <summary>`
|  | `237` |  | `/// Initializes a new instance of the <see cref="EcdsaKey"/> class.`
|  | `238` |  | `/// </summary>`
| 0 | `239` |  | `public EcdsaKey()`
| 0 | `240` |  | `{`
| 0 | `241` |  | `}`
|  | `242` |  | ``
|  | `243` |  | `/// <summary>`
|  | `244` |  | `/// Initializes a new instance of the <see cref="EcdsaKey"/> class.`
|  | `245` |  | `/// </summary>`
|  | `246` |  | `/// <param name="curve">The curve name.</param>`
|  | `247` |  | `/// <param name="publickey">Value of publickey.</param>`
|  | `248` |  | `/// <param name="privatekey">Value of privatekey.</param>`
| 20 | `249` |  | `public EcdsaKey(string curve, byte[] publickey, byte[] privatekey)`
| 20 | `250` |  | `{`
| 20 | `251` |  | `Import(GetCurveOid(curve), publickey, privatekey);`
| 20 | `252` |  | `}`
|  | `253` |  | ``
|  | `254` |  | `/// <summary>`
|  | `255` |  | `/// Initializes a new instance of the <see cref="EcdsaKey"/> class.`
|  | `256` |  | `/// </summary>`
|  | `257` |  | `/// <param name="data">DER encoded private key data.</param>`
| 19 | `258` |  | `public EcdsaKey(byte[] data)`
| 19 | `259` |  | `{`
| 19 | `260` |  | `var der = new DerData(data);`
| 19 | `261` |  | `_ = der.ReadBigInteger(); // skip version`
|  | `262` |  | ``
|  | `263` |  | `// PrivateKey`
| 19 | `264` |  | `var privatekey = der.ReadOctetString().TrimLeadingZeros();`
|  | `265` |  | ``
|  | `266` |  | `// Construct`
| 19 | `267` |  | `var s0 = der.ReadByte();`
| 19 | `268` |  | `if ((s0 & 0xe0) != 0xa0)`
| 0 | `269` |  | `{`
| 0 | `270` |  | `throw new SshException(string.Format("UnexpectedDER: wanted constructed tag (0xa0-0xbf), got: {0:X}", s0`
|  | `271` |  | `}`
|  | `272` |  | ``
| 19 | `273` |  | `var tag = s0 & 0x1f;`
| 19 | `274` |  | `if (tag != 0)`
| 0 | `275` |  | `{`
| 0 | `276` |  | `throw new SshException(string.Format("expected tag 0 in DER privkey, got: {0}", tag));`
|  | `277` |  | `}`
|  | `278` |  | ``
| 19 | `279` |  | `var construct = der.ReadBytes(der.ReadLength()); // object length`
|  | `280` |  | ``
|  | `281` |  | `// curve OID`
| 19 | `282` |  | `var curve_der = new DerData(construct, construct: true);`
| 19 | `283` |  | `var curve = curve_der.ReadObject();`
|  | `284` |  | ``
|  | `285` |  | `// Construct`
| 19 | `286` |  | `s0 = der.ReadByte();`
| 19 | `287` |  | `if ((s0 & 0xe0) != 0xa0)`
| 0 | `288` |  | `{`
| 0 | `289` |  | `throw new SshException(string.Format("UnexpectedDER: wanted constructed tag (0xa0-0xbf), got: {0:X}", s0`
|  | `290` |  | `}`
|  | `291` |  | ``
| 19 | `292` |  | `tag = s0 & 0x1f;`
| 19 | `293` |  | `if (tag != 1)`
| 0 | `294` |  | `{`
| 0 | `295` |  | `throw new SshException(string.Format("expected tag 1 in DER privkey, got: {0}", tag));`
|  | `296` |  | `}`
|  | `297` |  | ``
| 19 | `298` |  | `construct = der.ReadBytes(der.ReadLength()); // object length`
|  | `299` |  | ``
|  | `300` |  | `// PublicKey`
| 19 | `301` |  | `var pubkey_der = new DerData(construct, construct: true);`
| 19 | `302` |  | `var pubkey = pubkey_der.ReadBitString().TrimLeadingZeros();`
|  | `303` |  | ``
| 19 | `304` |  | `Import(OidByteArrayToString(curve), pubkey, privatekey);`
| 19 | `305` |  | `}`
|  | `306` |  | ``
|  | `307` |  | `private void Import(string curve_oid, byte[] publickey, byte[] privatekey)`
| 39 | `308` |  | `{`
|  | `309` |  | `#if NETFRAMEWORK`
|  | `310` |  | `KeyBlobMagicNumber curve_magic;`
|  | `311` |  | ``
| 12 | `312` |  | `switch (GetCurveName(curve_oid))`
|  | `313` |  | `{`
|  | `314` |  | `case "nistp256":`
| 4 | `315` |  | `if (privatekey != null)`
| 4 | `316` |  | `{`
| 4 | `317` |  | `curve_magic = KeyBlobMagicNumber.BCRYPT_ECDSA_PRIVATE_P256_MAGIC;`
| 4 | `318` |  | `}`
|  | `319` |  | `else`
| 0 | `320` |  | `{`
| 0 | `321` |  | `curve_magic = KeyBlobMagicNumber.BCRYPT_ECDSA_PUBLIC_P256_MAGIC;`
| 0 | `322` |  | `}`
|  | `323` |  | ``
| 4 | `324` |  | `break;`
|  | `325` |  | `case "nistp384":`
| 4 | `326` |  | `if (privatekey != null)`
| 4 | `327` |  | `{`
| 4 | `328` |  | `curve_magic = KeyBlobMagicNumber.BCRYPT_ECDSA_PRIVATE_P384_MAGIC;`
| 4 | `329` |  | `}`
|  | `330` |  | `else`
| 0 | `331` |  | `{`
| 0 | `332` |  | `curve_magic = KeyBlobMagicNumber.BCRYPT_ECDSA_PUBLIC_P384_MAGIC;`
| 0 | `333` |  | `}`
|  | `334` |  | ``
| 4 | `335` |  | `break;`
|  | `336` |  | `case "nistp521":`
| 4 | `337` |  | `if (privatekey != null)`
| 4 | `338` |  | `{`
| 4 | `339` |  | `curve_magic = KeyBlobMagicNumber.BCRYPT_ECDSA_PRIVATE_P521_MAGIC;`
| 4 | `340` |  | `}`
|  | `341` |  | `else`
| 0 | `342` |  | `{`
| 0 | `343` |  | `curve_magic = KeyBlobMagicNumber.BCRYPT_ECDSA_PUBLIC_P521_MAGIC;`
| 0 | `344` |  | `}`
|  | `345` |  | ``
| 4 | `346` |  | `break;`
|  | `347` |  | `default:`
| 0 | `348` |  | `throw new SshException("Unknown: " + curve_oid);`
|  | `349` |  | `}`
|  | `350` |  | ``
|  | `351` |  | `// ECPoint as BigInteger(2)`
| 12 | `352` |  | `var cord_size = (publickey.Length - 1) / 2;`
| 12 | `353` |  | `var qx = new byte[cord_size];`
| 12 | `354` |  | `Buffer.BlockCopy(publickey, 1, qx, 0, qx.Length);`
|  | `355` |  | ``
| 12 | `356` |  | `var qy = new byte[cord_size];`
| 12 | `357` |  | `Buffer.BlockCopy(publickey, cord_size + 1, qy, 0, qy.Length);`
|  | `358` |  | ``
| 12 | `359` |  | `if (privatekey != null)`
| 12 | `360` |  | `{`
| 12 | `361` |  | `privatekey = privatekey.Pad(cord_size);`
| 12 | `362` |  | `PrivateKey = privatekey;`
| 12 | `363` |  | `}`
|  | `364` |  | ``
| 12 | `365` |  | `var headerSize = Marshal.SizeOf(typeof(BCRYPT_ECCKEY_BLOB));`
| 12 | `366` |  | `var blobSize = headerSize + qx.Length + qy.Length;`
| 12 | `367` |  | `if (privatekey != null)`
| 12 | `368` |  | `{`
| 12 | `369` |  | `blobSize += privatekey.Length;`
| 12 | `370` |  | `}`
|  | `371` |  | ``
| 12 | `372` |  | `var blob = new byte[blobSize];`
| 12 | `373` |  | `using (var bw = new BinaryWriter(new MemoryStream(blob)))`
| 12 | `374` |  | `{`
| 12 | `375` |  | `bw.Write((int)curve_magic);`
| 12 | `376` |  | `bw.Write(cord_size);`
| 12 | `377` |  | `bw.Write(qx); // q.x`
| 12 | `378` |  | `bw.Write(qy); // q.y`
| 12 | `379` |  | `if (privatekey != null)`
| 12 | `380` |  | `{`
| 12 | `381` |  | `bw.Write(privatekey); // d`
| 12 | `382` |  | `}`
| 12 | `383` |  | `}`
|  | `384` |  | ``
| 12 | `385` |  | `_key = CngKey.Import(blob, privatekey is null ? CngKeyBlobFormat.EccPublicBlob : CngKeyBlobFormat.EccPrivate`
|  | `386` |  | ``
| 12 | `387` |  | `Ecdsa = new ECDsaCng(_key);`
|  | `388` |  | `#else`
| 27 | `389` |  | `var curve = ECCurve.CreateFromValue(curve_oid);`
| 27 | `390` |  | `var parameter = new ECParameters`
| 27 | `391` |  | `{`
| 27 | `392` |  | `Curve = curve`
| 27 | `393` |  | `};`
|  | `394` |  | ``
|  | `395` |  | `// ECPoint as BigInteger(2)`
| 27 | `396` |  | `var cord_size = (publickey.Length - 1) / 2;`
| 27 | `397` |  | `var qx = new byte[cord_size];`
| 27 | `398` |  | `Buffer.BlockCopy(publickey, 1, qx, 0, qx.Length);`
|  | `399` |  | ``
| 27 | `400` |  | `var qy = new byte[cord_size];`
| 27 | `401` |  | `Buffer.BlockCopy(publickey, cord_size + 1, qy, 0, qy.Length);`
|  | `402` |  | ``
| 27 | `403` |  | `parameter.Q.X = qx;`
| 27 | `404` |  | `parameter.Q.Y = qy;`
|  | `405` |  | ``
| 27 | `406` |  | `if (privatekey != null)`
| 27 | `407` |  | `{`
| 27 | `408` |  | `parameter.D = privatekey.TrimLeadingZeros().Pad(cord_size);`
| 27 | `409` |  | `PrivateKey = parameter.D;`
| 27 | `410` |  | `}`
|  | `411` |  | ``
| 27 | `412` |  | `Ecdsa = ECDsa.Create(parameter);`
|  | `413` |  | `#endif`
| 39 | `414` |  | `}`
|  | `415` |  | ``
|  | `416` |  | `private static string GetCurveOid(string curve_s)`
| 20 | `417` |  | `{`
| 20 | `418` |  | `switch (curve_s.ToUpperInvariant())`
|  | `419` |  | `{`
|  | `420` |  | `case "NISTP256":`
| 6 | `421` |  | `return ECDSA_P256_OID_VALUE;`
|  | `422` |  | `case "NISTP384":`
| 7 | `423` |  | `return ECDSA_P384_OID_VALUE;`
|  | `424` |  | `case "NISTP521":`
| 7 | `425` |  | `return ECDSA_P521_OID_VALUE;`
|  | `426` |  | `default:`
| 0 | `427` |  | `throw new SshException("Unexpected Curve Name: " + curve_s);`
|  | `428` |  | `}`
| 20 | `429` |  | `}`
|  | `430` |  | ``
|  | `431` |  | `#if NETFRAMEWORK`
|  | `432` |  | `private static string GetCurveName(string oid)`
| 12 | `433` |  | `{`
| 12 | `434` |  | `switch (oid)`
|  | `435` |  | `{`
|  | `436` |  | `case ECDSA_P256_OID_VALUE:`
| 4 | `437` |  | `return "nistp256";`
|  | `438` |  | `case ECDSA_P384_OID_VALUE:`
| 4 | `439` |  | `return "nistp384";`
|  | `440` |  | `case ECDSA_P521_OID_VALUE:`
| 4 | `441` |  | `return "nistp521";`
|  | `442` |  | `default:`
| 0 | `443` |  | `throw new SshException("Unexpected OID: " + oid);`
|  | `444` |  | `}`
| 12 | `445` |  | `}`
|  | `446` |  | `#endif // NETFRAMEWORK`
|  | `447` |  | ``
|  | `448` |  | `private static string OidByteArrayToString(byte[] oid)`
| 19 | `449` |  | `{`
| 19 | `450` |  | `var retVal = new StringBuilder();`
|  | `451` |  | ``
| 218 | `452` |  | `for (var i = 0; i < oid.Length; i++)`
| 90 | `453` |  | `{`
| 90 | `454` |  | `if (i == 0)`
| 19 | `455` |  | `{`
| 19 | `456` |  | `var b = oid[0] % 40;`
| 19 | `457` |  | `var a = (oid[0] - b) / 40;`
| 19 | `458` |  | `_ = retVal.AppendFormat("{0}.{1}", a, b);`
| 19 | `459` |  | `}`
|  | `460` |  | `else`
| 71 | `461` |  | `{`
| 71 | `462` |  | `if (oid[i] < 128)`
| 45 | `463` |  | `{`
| 45 | `464` |  | `_ = retVal.AppendFormat(".{0}", oid[i]);`
| 45 | `465` |  | `}`
|  | `466` |  | `else`
| 26 | `467` |  | `{`
| 26 | `468` |  | `_ = retVal.AppendFormat(".{0}", ((oid[i] - 128) * 128) + oid[i + 1]);`
| 26 | `469` |  | `i++;`
| 26 | `470` |  | `}`
| 71 | `471` |  | `}`
| 90 | `472` |  | `}`
|  | `473` |  | ``
| 19 | `474` |  | `return retVal.ToString();`
| 19 | `475` |  | `}`
|  | `476` |  | ``
|  | `477` |  | `/// <summary>`
|  | `478` |  | `/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.`
|  | `479` |  | `/// </summary>`
|  | `480` |  | `public void Dispose()`
| 0 | `481` |  | `{`
| 0 | `482` |  | `Dispose(disposing: true);`
| 0 | `483` |  | `GC.SuppressFinalize(this);`
| 0 | `484` |  | `}`
|  | `485` |  | ``
|  | `486` |  | `/// <summary>`
|  | `487` |  | `/// Releases unmanaged and - optionally - managed resources.`
|  | `488` |  | `/// </summary>`
|  | `489` |  | `/// <param name="disposing"><see langword="true"/> to release both managed and unmanaged resources; <see langwor`
|  | `490` |  | `protected virtual void Dispose(bool disposing)`
| 39 | `491` |  | `{`
| 39 | `492` |  | `if (_isDisposed)`
| 0 | `493` |  | `{`
| 0 | `494` |  | `return;`
|  | `495` |  | `}`
|  | `496` |  | ``
| 39 | `497` |  | `if (disposing)`
| 0 | `498` |  | `{`
| 0 | `499` |  | `_isDisposed = true;`
| 0 | `500` |  | `}`
| 39 | `501` |  | `}`
|  | `502` |  | ``
|  | `503` |  | `/// <summary>`
|  | `504` |  | `/// Finalizes an instance of the <see cref="EcdsaKey"/> class.`
|  | `505` |  | `/// </summary>`
|  | `506` |  | `~EcdsaKey()`
| 78 | `507` |  | `{`
| 39 | `508` |  | `Dispose(disposing: false);`
| 78 | `509` |  | `}`
|  | `510` |  | `}`
|  | `511` |  | `}`

# Methods/Properties

ToString()
get_HashAlgorithm()
get_HashAlgorithm()
get_KeyLength()
get_DigitalSignature()
get_Public()
set_Public(Renci.SshNet.Common.BigInteger[])
get_PrivateKey()
get_Ecdsa()
.ctor()
.ctor(System.String,System.Byte[],System.Byte[])
.ctor(System.Byte[])
Import(System.String,System.Byte[],System.Byte[])
GetCurveOid(System.String)
GetCurveName(System.String)
OidByteArrayToString(System.Byte[])
Dispose()
Dispose(System.Boolean)
Finalize()