From: Niels Möller <nisse@lysator.liu.se>
Date: Wed, 15 May 2002 14:12:29 +0000 (+0200)
Subject: (aes_decrypt): Deleted first xchgl instruction into, permuting the
X-Git-Tag: nettle_1.6_release_20021003~145
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=02a0b85fa9cc62a6ab31d1781d652822d5a3bb9b;p=thirdparty%2Fnettle.git

(aes_decrypt): Deleted first xchgl instruction into, permuting the
AES_ROUND calls instead.

Rev: src/nettle/x86/aes-decrypt.asm:1.13
---

diff --git a/x86/aes-decrypt.asm b/x86/aes-decrypt.asm
index 42b41167..6faec7a6 100644
--- a/x86/aes-decrypt.asm
+++ b/x86/aes-decrypt.asm
@@ -57,18 +57,18 @@ aes_decrypt:
 	pushl	%esi		C  save this first: we'll clobber it later
 
 	C Why???
-	xchgl	%ebx,%edx
+	C xchgl	%ebx,%edx
 
-	AES_ROUND(_aes_decrypt_table,a,b,c,d)
+	AES_ROUND(_aes_decrypt_table,a,d,c,b)
 	pushl	%edi		C  save first on stack
 
-	AES_ROUND(_aes_decrypt_table,d,a,b,c)
+	AES_ROUND(_aes_decrypt_table,b,a,d,c)
 	pushl	%edi
 
-	AES_ROUND(_aes_decrypt_table,c,d,a,b)
+	AES_ROUND(_aes_decrypt_table,c,b,a,d)
 	pushl	%edi		C  save first on stack
 
-	AES_ROUND(_aes_decrypt_table,b,c,d,a)
+	AES_ROUND(_aes_decrypt_table,d,c,b,a)
 
 	movl	%edi,%edx
 	popl	%ecx