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niko
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using System;
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using System.Collections;
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using System.IO;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Cms;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Cms.Ecc;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Pkcs;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
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using Cpp2IlInjected;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Cms
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{
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// Token: 0x02001E3A RID: 7738
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[Token(Token = "0x2001E3A")]
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public class KeyAgreeRecipientInformation : RecipientInformation
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{
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// Token: 0x0600C224 RID: 49700 RVA: 0x002BE47C File Offset: 0x002BC67C
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[Token(Token = "0x600C224")]
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[Address(RVA = "0x29317C0", Offset = "0x29307C0", VA = "0x1829317C0")]
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internal static void ReadRecipientInfo(IList infos, KeyAgreeRecipientInfo info, CmsSecureReadable secureReadable)
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{
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int num = 0;
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IEnumerator enumerator = info.recipientEncryptedKeys.GetEnumerator();
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if (enumerator != 0)
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{
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if (num < enumerator)
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{
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num += num;
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num++;
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}
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ulong num2;
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enumerator += num2;
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if (enumerator == 0 || enumerator == 0)
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{
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throw new NullReferenceException();
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}
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RecipientID recipientID = new RecipientID();
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RecipientEncryptedKey recipientEncryptedKey;
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KeyAgreeRecipientIdentifier identifier = recipientEncryptedKey.identifier;
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if (identifier.issuerSerial == 0)
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{
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Stream octetStream = identifier.rKeyID.subjectKeyIdentifier.GetOctetStream();
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}
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byte[] authorityKeyIdentifier = recipientID.authorityKeyIdentifier;
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recipientID.issuer = authorityKeyIdentifier;
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int basicConstraints = recipientID.basicConstraints;
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BigInteger bigInteger;
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recipientID.serialNumber = bigInteger;
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}
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KeyAgreeRecipientInformation keyAgreeRecipientInformation;
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if (keyAgreeRecipientInformation != 0)
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{
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}
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if (num == 0)
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{
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return;
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}
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throw new NullReferenceException();
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}
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// Token: 0x0600C225 RID: 49701 RVA: 0x002BE560 File Offset: 0x002BC760
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[Token(Token = "0x600C225")]
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[Address(RVA = "0x2931CA0", Offset = "0x2930CA0", VA = "0x182931CA0")]
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internal KeyAgreeRecipientInformation(KeyAgreeRecipientInfo info, RecipientID rid, Asn1OctetString encryptedKey, CmsSecureReadable secureReadable)
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{
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this.rid = rid;
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this.encryptedKey = encryptedKey;
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this.info = info;
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}
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// Token: 0x0600C226 RID: 49702 RVA: 0x002BE588 File Offset: 0x002BC788
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[Token(Token = "0x600C226")]
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[Address(RVA = "0x2931260", Offset = "0x2930260", VA = "0x182931260")]
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private AsymmetricKeyParameter GetSenderPublicKey(AsymmetricKeyParameter receiverPrivateKey, OriginatorIdentifierOrKey originator)
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{
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OriginatorPublicKey originatorPublicKey = originator.OriginatorPublicKey;
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if (originatorPublicKey != 0)
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{
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return this.GetPublicKeyFromOriginatorPublicKey(receiverPrivateKey, originatorPublicKey);
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}
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OriginatorID originatorID = new OriginatorID();
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IssuerAndSerialNumber issuerAndSerialNumber = originator.IssuerAndSerialNumber;
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if (issuerAndSerialNumber == 0)
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{
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throw new NullReferenceException();
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}
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throw new NullReferenceException();
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}
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// Token: 0x0600C227 RID: 49703 RVA: 0x002BE638 File Offset: 0x002BC838
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[Token(Token = "0x600C227")]
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[Address(RVA = "0x29311A0", Offset = "0x29301A0", VA = "0x1829311A0")]
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private AsymmetricKeyParameter GetPublicKeyFromOriginatorPublicKey(AsymmetricKeyParameter receiverPrivateKey, OriginatorPublicKey originatorPublicKey)
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{
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bool hasPublicKey = PrivateKeyInfoFactory.CreatePrivateKeyInfo(receiverPrivateKey).HasPublicKey;
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byte[] octets = originatorPublicKey.mPublicKey.GetOctets();
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SubjectPublicKeyInfo subjectPublicKeyInfo;
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return PublicKeyFactory.CreateKey(subjectPublicKeyInfo);
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}
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// Token: 0x0600C228 RID: 49704 RVA: 0x002BE66C File Offset: 0x002BC86C
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[Token(Token = "0x600C228")]
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[Address(RVA = "0x2931140", Offset = "0x2930140", VA = "0x182931140")]
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private AsymmetricKeyParameter GetPublicKeyFromOriginatorID(OriginatorID origID)
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{
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/*
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An exception occurred when decompiling this method (0600C228)
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ICSharpCode.Decompiler.DecompilerException: Error decompiling BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.AsymmetricKeyParameter BestHTTP.SecureProtocol.Org.BouncyCastle.Cms.KeyAgreeRecipientInformation::GetPublicKeyFromOriginatorID(BestHTTP.SecureProtocol.Org.BouncyCastle.Cms.OriginatorID)
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---> System.Exception: Basic block has to end with unconditional control flow.
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{
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Block_0:
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stloc:CmsException(var_0_0A, newobj:CmsException(CmsException::.ctor, ldstr:string("No support for 'originator' as IssuerAndSerialNumber or SubjectKeyIdentifier")))
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}
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
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at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
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at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
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--- End of inner exception stack trace ---
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at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
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at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
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*/;
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}
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// Token: 0x0600C229 RID: 49705 RVA: 0x002BE684 File Offset: 0x002BC884
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[Token(Token = "0x600C229")]
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[Address(RVA = "0x2930C60", Offset = "0x292FC60", VA = "0x182930C60")]
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private KeyParameter CalculateAgreedWrapKey(string wrapAlg, AsymmetricKeyParameter senderPublicKey, AsymmetricKeyParameter receiverPrivateKey)
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{
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for (;;)
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{
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Asn1Object asn1Object = this.keyEncAlg.ToAsn1Object();
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string ecmqvSha1Kdf = CmsEnvelopedGenerator.ECMqvSha1Kdf;
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bool flag;
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if (!flag)
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{
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break;
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}
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Stream octetStream = this.info.ukm.GetOctetStream();
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Asn1Object asn1Object2;
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OriginatorPublicKey ephemeralPublicKey = MQVuserKeyingMaterial.GetInstance(asn1Object2).ephemeralPublicKey;
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AsymmetricKeyParameter publicKeyFromOriginatorPublicKey = this.GetPublicKeyFromOriginatorPublicKey(receiverPrivateKey, ephemeralPublicKey);
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if (publicKeyFromOriginatorPublicKey == 0)
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{
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}
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if (publicKeyFromOriginatorPublicKey != 0)
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{
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if (senderPublicKey == 0)
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{
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}
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if (senderPublicKey != 0)
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{
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if (receiverPrivateKey == 0)
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{
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}
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if (receiverPrivateKey != 0 && receiverPrivateKey != 0)
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{
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break;
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}
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}
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}
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}
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int num = 0;
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int defaultKeySize = GeneratorUtilities.GetDefaultKeySize(wrapAlg);
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num += defaultKeySize;
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byte[] array;
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return ParameterUtilities.CreateKeyParameter(wrapAlg, array);
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}
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// Token: 0x0600C22A RID: 49706 RVA: 0x002BE71C File Offset: 0x002BC91C
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[Token(Token = "0x600C22A")]
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[Address(RVA = "0x2931B70", Offset = "0x2930B70", VA = "0x182931B70")]
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private KeyParameter UnwrapSessionKey(string wrapAlg, KeyParameter agreedKey)
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{
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Stream octetStream = this.encryptedKey.GetOctetStream();
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IWrapper wrapper = WrapperUtilities.GetWrapper(wrapAlg);
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Stream.ReadWriteTask activeReadWriteTask = octetStream._activeReadWriteTask;
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string contentAlgorithmName = base.GetContentAlgorithmName();
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KeyParameter keyParameter;
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return keyParameter;
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}
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// Token: 0x0600C22B RID: 49707 RVA: 0x002BE754 File Offset: 0x002BC954
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[Token(Token = "0x600C22B")]
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[Address(RVA = "0x29313C0", Offset = "0x29303C0", VA = "0x1829313C0")]
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internal KeyParameter GetSessionKey(AsymmetricKeyParameter receiverPrivateKey)
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{
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Asn1SequenceParser parser = Asn1Sequence.GetInstance(this.keyEncAlg.ObjectID).Parser;
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DerObjectIdentifier derObjectIdentifier;
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string identifier = derObjectIdentifier.identifier;
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OriginatorIdentifierOrKey originator = this.info.originator;
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OriginatorPublicKey originatorPublicKey = originator.OriginatorPublicKey;
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if (originatorPublicKey != 0)
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{
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AsymmetricKeyParameter publicKeyFromOriginatorPublicKey = this.GetPublicKeyFromOriginatorPublicKey(receiverPrivateKey, originatorPublicKey);
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KeyParameter keyParameter = this.CalculateAgreedWrapKey(identifier, publicKeyFromOriginatorPublicKey, receiverPrivateKey);
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Stream octetStream = this.encryptedKey.GetOctetStream();
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IWrapper wrapper = WrapperUtilities.GetWrapper(identifier);
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Stream.ReadWriteTask activeReadWriteTask = octetStream._activeReadWriteTask;
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string contentAlgorithmName = base.GetContentAlgorithmName();
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KeyParameter keyParameter2;
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return keyParameter2;
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}
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OriginatorID originatorID = new OriginatorID();
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IssuerAndSerialNumber issuerAndSerialNumber = originator.IssuerAndSerialNumber;
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if (issuerAndSerialNumber == 0)
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{
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throw new NullReferenceException();
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}
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throw new NullReferenceException();
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}
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// Token: 0x0600C22C RID: 49708 RVA: 0x002BE8C0 File Offset: 0x002BCAC0
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[Token(Token = "0x600C22C")]
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[Address(RVA = "0x2930FE0", Offset = "0x292FFE0", VA = "0x182930FE0", Slot = "4")]
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public override CmsTypedStream GetContentStream(ICipherParameters key)
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{
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/*
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An exception occurred when decompiling this method (0600C22C)
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ICSharpCode.Decompiler.DecompilerException: Error decompiling BestHTTP.SecureProtocol.Org.BouncyCastle.Cms.CmsTypedStream BestHTTP.SecureProtocol.Org.BouncyCastle.Cms.KeyAgreeRecipientInformation::GetContentStream(BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.ICipherParameters)
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---> System.Exception: Basic block has to end with unconditional control flow.
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{
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IL_18:
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stloc:ArgumentException(var_3_27, newobj:ArgumentException(ArgumentException::.ctor, ldstr:string("KeyAgreement requires asymmetric key"), ldstr:string("key")))
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stloc:ArgumentException(var_4_37, newobj:ArgumentException(ArgumentException::.ctor, ldstr:string("Expected private key"), ldstr:string("key")))
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}
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
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at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
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at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
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--- End of inner exception stack trace ---
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at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
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at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
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*/;
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}
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// Token: 0x04007ADA RID: 31450
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[FieldOffset(Offset = "0x30")]
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[Token(Token = "0x4007ADA")]
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private KeyAgreeRecipientInfo info;
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// Token: 0x04007ADB RID: 31451
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[FieldOffset(Offset = "0x38")]
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[Token(Token = "0x4007ADB")]
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private Asn1OctetString encryptedKey;
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}
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}
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