scripts
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niko
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using System;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace System.Security.Cryptography
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{
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/// <summary>Represents the base class from which all implementations of the <see cref="T:System.Security.Cryptography.RSA" /> algorithm inherit.</summary>
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// Token: 0x0200051B RID: 1307
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[ComVisible(true)]
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public abstract class RSA : AsymmetricAlgorithm
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{
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/// <summary>Creates an instance of the default implementation of the <see cref="T:System.Security.Cryptography.RSA" /> algorithm.</summary>
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/// <returns>A new instance of the default implementation of <see cref="T:System.Security.Cryptography.RSA" />.</returns>
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/// <PermissionSet>
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/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode" />
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/// </PermissionSet>
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// Token: 0x06003005 RID: 12293 RVA: 0x0009D18C File Offset: 0x0009B38C
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public new static RSA Create()
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{
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return RSA.Create("System.Security.Cryptography.RSA");
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}
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/// <summary>Creates an instance of the specified implementation of <see cref="T:System.Security.Cryptography.RSA" />.</summary>
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/// <returns>A new instance of the specified implementation of <see cref="T:System.Security.Cryptography.RSA" />.</returns>
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/// <param name="algName">The name of the implementation of <see cref="T:System.Security.Cryptography.RSA" /> to use. </param>
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// Token: 0x06003006 RID: 12294 RVA: 0x0009D198 File Offset: 0x0009B398
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public new static RSA Create(string algName)
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{
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return (RSA)CryptoConfig.CreateFromName(algName);
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}
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/// <summary>When overridden in a derived class, encrypts the input data using the public key.</summary>
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/// <returns>The resulting encryption of the <paramref name="rgb" /> parameter as cipher text.</returns>
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/// <param name="rgb">The plain text to be encrypted. </param>
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// Token: 0x06003007 RID: 12295
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public abstract byte[] EncryptValue(byte[] rgb);
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/// <summary>When overridden in a derived class, decrypts the input data using the private key.</summary>
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/// <returns>The resulting decryption of the <paramref name="rgb" /> parameter in plain text.</returns>
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/// <param name="rgb">The cipher text to be decrypted. </param>
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// Token: 0x06003008 RID: 12296
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public abstract byte[] DecryptValue(byte[] rgb);
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/// <summary>When overridden in a derived class, exports the <see cref="T:System.Security.Cryptography.RSAParameters" />.</summary>
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/// <returns>The parameters for <see cref="T:System.Security.Cryptography.DSA" />.</returns>
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/// <param name="includePrivateParameters">true to include private parameters; otherwise, false. </param>
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// Token: 0x06003009 RID: 12297
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public abstract RSAParameters ExportParameters(bool includePrivateParameters);
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/// <summary>When overridden in a derived class, imports the specified <see cref="T:System.Security.Cryptography.RSAParameters" />.</summary>
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/// <param name="parameters">The parameters for <see cref="T:System.Security.Cryptography.RSA" />. </param>
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// Token: 0x0600300A RID: 12298
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public abstract void ImportParameters(RSAParameters parameters);
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// Token: 0x0600300B RID: 12299 RVA: 0x0009D1A8 File Offset: 0x0009B3A8
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internal void ZeroizePrivateKey(RSAParameters parameters)
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{
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if (parameters.P != null)
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{
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Array.Clear(parameters.P, 0, parameters.P.Length);
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}
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if (parameters.Q != null)
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{
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Array.Clear(parameters.Q, 0, parameters.Q.Length);
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}
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if (parameters.DP != null)
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{
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Array.Clear(parameters.DP, 0, parameters.DP.Length);
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}
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if (parameters.DQ != null)
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{
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Array.Clear(parameters.DQ, 0, parameters.DQ.Length);
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}
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if (parameters.InverseQ != null)
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{
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Array.Clear(parameters.InverseQ, 0, parameters.InverseQ.Length);
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}
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if (parameters.D != null)
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{
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Array.Clear(parameters.D, 0, parameters.D.Length);
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}
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}
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/// <summary>Initializes an <see cref="T:System.Security.Cryptography.RSA" /> object from the key information from an XML string.</summary>
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/// <param name="xmlString">The XML string containing <see cref="T:System.Security.Cryptography.RSA" /> key information. </param>
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/// <exception cref="T:System.ArgumentNullException">The <paramref name="xmlString" /> parameter is null. </exception>
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/// <exception cref="T:System.Security.Cryptography.CryptographicException">The format of the <paramref name="xmlString" /> parameter is not valid. </exception>
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// Token: 0x0600300C RID: 12300 RVA: 0x0009D284 File Offset: 0x0009B484
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public override void FromXmlString(string xmlString)
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{
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if (xmlString == null)
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{
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throw new ArgumentNullException("xmlString");
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}
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RSAParameters rsaparameters = default(RSAParameters);
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try
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{
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rsaparameters.P = AsymmetricAlgorithm.GetNamedParam(xmlString, "P");
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rsaparameters.Q = AsymmetricAlgorithm.GetNamedParam(xmlString, "Q");
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rsaparameters.D = AsymmetricAlgorithm.GetNamedParam(xmlString, "D");
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rsaparameters.DP = AsymmetricAlgorithm.GetNamedParam(xmlString, "DP");
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rsaparameters.DQ = AsymmetricAlgorithm.GetNamedParam(xmlString, "DQ");
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rsaparameters.InverseQ = AsymmetricAlgorithm.GetNamedParam(xmlString, "InverseQ");
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rsaparameters.Exponent = AsymmetricAlgorithm.GetNamedParam(xmlString, "Exponent");
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rsaparameters.Modulus = AsymmetricAlgorithm.GetNamedParam(xmlString, "Modulus");
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this.ImportParameters(rsaparameters);
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}
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catch (Exception ex)
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{
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this.ZeroizePrivateKey(rsaparameters);
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throw new CryptographicException(Locale.GetText("Couldn't decode XML"), ex);
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}
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finally
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{
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this.ZeroizePrivateKey(rsaparameters);
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}
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}
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/// <summary>Creates and returns an XML string containing the key of the current <see cref="T:System.Security.Cryptography.RSA" /> object.</summary>
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/// <returns>An XML string containing the key of the current <see cref="T:System.Security.Cryptography.RSA" /> object.</returns>
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/// <param name="includePrivateParameters">true to include a public and private RSA key; false to include only the public key. </param>
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// Token: 0x0600300D RID: 12301 RVA: 0x0009D3A0 File Offset: 0x0009B5A0
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public override string ToXmlString(bool includePrivateParameters)
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{
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StringBuilder stringBuilder = new StringBuilder();
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RSAParameters rsaparameters = this.ExportParameters(includePrivateParameters);
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try
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{
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stringBuilder.Append("<RSAKeyValue>");
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stringBuilder.Append("<Modulus>");
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stringBuilder.Append(Convert.ToBase64String(rsaparameters.Modulus));
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stringBuilder.Append("</Modulus>");
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stringBuilder.Append("<Exponent>");
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stringBuilder.Append(Convert.ToBase64String(rsaparameters.Exponent));
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stringBuilder.Append("</Exponent>");
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if (includePrivateParameters)
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{
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if (rsaparameters.D == null)
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{
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string text = Locale.GetText("Missing D parameter for the private key.");
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throw new ArgumentNullException(text);
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}
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if (rsaparameters.P == null || rsaparameters.Q == null || rsaparameters.DP == null || rsaparameters.DQ == null || rsaparameters.InverseQ == null)
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{
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string text2 = Locale.GetText("Missing some CRT parameters for the private key.");
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throw new CryptographicException(text2);
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}
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stringBuilder.Append("<P>");
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stringBuilder.Append(Convert.ToBase64String(rsaparameters.P));
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stringBuilder.Append("</P>");
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stringBuilder.Append("<Q>");
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stringBuilder.Append(Convert.ToBase64String(rsaparameters.Q));
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stringBuilder.Append("</Q>");
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stringBuilder.Append("<DP>");
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stringBuilder.Append(Convert.ToBase64String(rsaparameters.DP));
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stringBuilder.Append("</DP>");
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stringBuilder.Append("<DQ>");
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stringBuilder.Append(Convert.ToBase64String(rsaparameters.DQ));
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stringBuilder.Append("</DQ>");
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stringBuilder.Append("<InverseQ>");
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stringBuilder.Append(Convert.ToBase64String(rsaparameters.InverseQ));
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stringBuilder.Append("</InverseQ>");
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stringBuilder.Append("<D>");
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stringBuilder.Append(Convert.ToBase64String(rsaparameters.D));
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stringBuilder.Append("</D>");
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}
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stringBuilder.Append("</RSAKeyValue>");
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}
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catch
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{
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this.ZeroizePrivateKey(rsaparameters);
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throw;
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}
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return stringBuilder.ToString();
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}
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}
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}
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