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			55 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Objective-C
		
	
			
		
		
	
	
			55 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Objective-C
		
	
| //
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| //  Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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| //
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| 
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| #import "SendingChain.h"
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| #import "ChainKey.h"
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| #import <SignalCoreKit/OWSAsserts.h>
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| 
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| @interface SendingChain ()
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| 
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| @property (nonatomic)ChainKey *chainKey;
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| 
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| @end
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| 
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| @implementation SendingChain
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| 
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| static NSString* const kCoderChainKey      = @"kCoderChainKey";
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| static NSString* const kCoderSenderRatchet = @"kCoderSenderRatchet";
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| 
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| + (BOOL)supportsSecureCoding{
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|     return YES;
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| }
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| 
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| - (id)initWithCoder:(NSCoder *)aDecoder{
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|     self = [self initWithChainKey:[aDecoder decodeObjectOfClass:[ChainKey class] forKey:kCoderChainKey]
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|              senderRatchetKeyPair:[aDecoder decodeObjectOfClass:[ECKeyPair class] forKey:kCoderSenderRatchet]];
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|     
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|     return self;
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| }
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| 
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| - (void)encodeWithCoder:(NSCoder *)aCoder{
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|     [aCoder encodeObject:self.chainKey forKey:kCoderChainKey];
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|     [aCoder encodeObject:self.senderRatchetKeyPair forKey:kCoderSenderRatchet];
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| }
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| 
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| - (instancetype)initWithChainKey:(ChainKey *)chainKey senderRatchetKeyPair:(ECKeyPair *)keyPair{
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|     self = [super init];
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| 
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|     OWSAssert(chainKey.key.length == 32);
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|     OWSAssert(keyPair);
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| 
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|     if (self) {
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|         _chainKey             = chainKey;
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|         _senderRatchetKeyPair = keyPair;
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|     }
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| 
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|     return self;
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| }
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| 
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| -(ChainKey *)chainKey{
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|     return _chainKey;
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| }
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| 
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| @end
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