diff --git a/NSData+CommonCrypto.m b/NSData+CommonCrypto.m
index 47dbd3d..b0cd7fa 100644
--- a/NSData+CommonCrypto.m
+++ b/NSData+CommonCrypto.m
@@ -282,11 +282,11 @@ static void FixKeyLengths( CCAlgorithm algorithm, NSMutableData * keyData, NSMut
 	{
 		case kCCAlgorithmAES128:
 		{
-			if ( keyLength < 16 )
+			if ( keyLength <= 16 )
 			{
 				[keyData setLength: 16];
 			}
-			else if ( keyLength < 24 )
+			else if ( keyLength <= 24 )
 			{
 				[keyData setLength: 24];
 			}
@@ -543,4 +543,4 @@ - (NSData *) HMACWithAlgorithm: (CCHmacAlgorithm) algorithm key: (id) key
 	return ( [NSData dataWithBytes: buf length: (algorithm == kCCHmacAlgMD5 ? CC_MD5_DIGEST_LENGTH : CC_SHA1_DIGEST_LENGTH)] );
 }
 
-@end
\ No newline at end of file
+@end