From b00858921df4ad5ec0b3a0cc167b090bc9986051 Mon Sep 17 00:00:00 2001
From: Matthew Chen <matthew@signal.org>
Date: Wed, 29 Aug 2018 16:26:08 -0400
Subject: [PATCH] Update Cocoapods.

---
 SignalServiceKit/src/Util/NSData+OWS.h |  7 ++-----
 SignalServiceKit/src/Util/NSData+OWS.m | 19 -------------------
 2 files changed, 2 insertions(+), 24 deletions(-)

diff --git a/SignalServiceKit/src/Util/NSData+OWS.h b/SignalServiceKit/src/Util/NSData+OWS.h
index 50ec714e0..afaa79d60 100644
--- a/SignalServiceKit/src/Util/NSData+OWS.h
+++ b/SignalServiceKit/src/Util/NSData+OWS.h
@@ -2,15 +2,12 @@
 //  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
 //
 
+#import <AxolotlKit/NSData+SPK.h>
+
 NS_ASSUME_NONNULL_BEGIN
 
 @interface NSData (OWS)
 
-/**
- * Compares data in constant time so as to help avoid potential timing attacks.
- */
-- (BOOL)ows_constantTimeIsEqualToData:(NSData *)other;
-
 - (NSData *)dataByAppendingData:(NSData *)data;
 
 - (NSString *)hexadecimalString;
diff --git a/SignalServiceKit/src/Util/NSData+OWS.m b/SignalServiceKit/src/Util/NSData+OWS.m
index 2a44da3a8..fab0c02e1 100644
--- a/SignalServiceKit/src/Util/NSData+OWS.m
+++ b/SignalServiceKit/src/Util/NSData+OWS.m
@@ -8,25 +8,6 @@ NS_ASSUME_NONNULL_BEGIN
 
 @implementation NSData (OWS)
 
-- (BOOL)ows_constantTimeIsEqualToData:(NSData *)other
-{
-    volatile UInt8 isEqual = 0;
-
-    if (self.length != other.length) {
-        return NO;
-    }
-
-    UInt8 *leftBytes = (UInt8 *)self.bytes;
-    UInt8 *rightBytes = (UInt8 *)other.bytes;
-    for (int i = 0; i < self.length; i++) {
-        // rather than returning as soon as we find a discrepency, we compare the rest of
-        // the byte stream to maintain a constant time comparison
-        isEqual |= leftBytes[i] ^ rightBytes[i];
-    }
-
-    return isEqual == 0;
-}
-
 - (NSData *)dataByAppendingData:(NSData *)data
 {
     NSMutableData *result = [self mutableCopy];