X-Git-Url: https://git.cryptolib.org/?a=blobdiff_plain;f=sha256-asm.S;h=392bf421efe911ea770e57d6d1ce64c04eb8027e;hb=96ebafd201c9e8441c7677577b24aa402c1defc6;hp=0769e7cd28e5a8e41d2c0f6356ed6c1c1cc2f0be;hpb=3c995d0a8faeb9d37927d48e20fc45d839e066ea;p=avr-crypto-lib.git

diff --git a/sha256-asm.S b/sha256-asm.S
index 0769e7c..392bf42 100644
--- a/sha256-asm.S
+++ b/sha256-asm.S
@@ -1,3 +1,21 @@
+/* sha256-asm.S */
+/*
+    This file is part of the Crypto-avr-lib/microcrypt-lib.
+    Copyright (C) 2008  Daniel Otte (daniel.otte@rub.de)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
 /*
  * Author:	Daniel Otte
  *
@@ -96,8 +114,8 @@ SREG = 0x3F
 ;###########################################################	
 
 .global sha256_ctx2hash
-; === sha256_lastBlock ===
-; this function does padding & Co. for calculating SHA-256 hashes
+; === sha256_ctx2hash ===
+; this function converts a state into a normal hash (bytestring)
 ;  param1: the 16-bit destination pointer
 ;	given in r25,r24 (r25 is most significant)
 ;  param2: the 16-bit pointer to sha256_ctx structure
@@ -840,13 +858,13 @@ update_state_loop:
 	add r20, r21
 	st Z+, r20	
 	clr r21
-sha256_nexBlock_fix_length:	
+sha256_nextBlock_fix_length:	
 	brcc sha256_nextBlock_epilog
 	ld r20, Z
 	adc r20, r21
 	st Z+, r20
 	dec r22
-	brne sha256_nexBlock_fix_length
+	brne sha256_nextBlock_fix_length
 	
 ; EPILOG
 sha256_nextBlock_epilog: