niko
83 lines
3.5 KiB
C#
83 lines
3.5 KiB
C#
using System;
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using System.Runtime.InteropServices;
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using Mono.Security.Cryptography;
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namespace System.Security.Cryptography
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{
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/// <summary>Decrypts Optimal Asymmetric Encryption Padding (OAEP) key exchange data.</summary>
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// Token: 0x0200051D RID: 1309
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[ComVisible(true)]
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public class RSAOAEPKeyExchangeDeformatter : AsymmetricKeyExchangeDeformatter
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{
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/// <summary>Initializes a new instance of the <see cref="T:System.Security.Cryptography.RSAOAEPKeyExchangeDeformatter" /> class.</summary>
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// Token: 0x06003030 RID: 12336 RVA: 0x0009DCC4 File Offset: 0x0009BEC4
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public RSAOAEPKeyExchangeDeformatter()
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{
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}
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/// <summary>Initializes a new instance of the <see cref="T:System.Security.Cryptography.RSAOAEPKeyExchangeDeformatter" /> class with the specified key.</summary>
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/// <param name="key">The instance of the <see cref="T:System.Security.Cryptography.RSA" /> algorithm that holds the private key. </param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="key " />is null.</exception>
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// Token: 0x06003031 RID: 12337 RVA: 0x0009DCCC File Offset: 0x0009BECC
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public RSAOAEPKeyExchangeDeformatter(AsymmetricAlgorithm key)
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{
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this.SetKey(key);
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}
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/// <summary>Gets the parameters for the Optimal Asymmetric Encryption Padding (OAEP) key exchange.</summary>
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/// <returns>An XML string containing the parameters of the OAEP key exchange operation.</returns>
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// Token: 0x1700097C RID: 2428
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// (get) Token: 0x06003032 RID: 12338 RVA: 0x0009DCDC File Offset: 0x0009BEDC
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// (set) Token: 0x06003033 RID: 12339 RVA: 0x0009DCE0 File Offset: 0x0009BEE0
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public override string Parameters
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{
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get
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{
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return null;
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}
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set
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{
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}
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}
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/// <summary>Extracts secret information from the encrypted key exchange data.</summary>
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/// <returns>The secret information derived from the key exchange data.</returns>
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/// <param name="rgbData">The key exchange data within which the secret information is hidden. </param>
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/// <exception cref="T:System.Security.Cryptography.CryptographicException">The key exchange data verification has failed. </exception>
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/// <exception cref="T:System.Security.Cryptography.CryptographicUnexpectedOperationException">The key is missing.</exception>
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/// <PermissionSet>
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/// <IPermission class="System.Security.Permissions.KeyContainerPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
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/// </PermissionSet>
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// Token: 0x06003034 RID: 12340 RVA: 0x0009DCE4 File Offset: 0x0009BEE4
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public override byte[] DecryptKeyExchange(byte[] rgbData)
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{
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if (this.rsa == null)
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{
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string text = Locale.GetText("No RSA key specified");
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throw new CryptographicUnexpectedOperationException(text);
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}
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SHA1 sha = SHA1.Create();
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byte[] array = PKCS1.Decrypt_OAEP(this.rsa, sha, rgbData);
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if (array != null)
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{
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return array;
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}
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throw new CryptographicException(Locale.GetText("OAEP decoding error."));
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}
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/// <summary>Sets the private key to use for decrypting the secret information.</summary>
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/// <param name="key">The instance of the <see cref="T:System.Security.Cryptography.RSA" /> algorithm that holds the private key. </param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="key" /> is null.</exception>
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// Token: 0x06003035 RID: 12341 RVA: 0x0009DD3C File Offset: 0x0009BF3C
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public override void SetKey(AsymmetricAlgorithm key)
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{
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this.rsa = (RSA)key;
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}
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// Token: 0x0400139B RID: 5019
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private RSA rsa;
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}
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}
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