u-boot/include/rc4.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * (C) Copyright 2015 Google, Inc
 *
 * (C) Copyright 2008-2014 Rockchip Electronics
 */

#ifndef __RC4_H
#define __RC4_H

/**
 * rc4_encode() - encode a buf with the RC4 cipher
 *
 * @buf:	Buffer to encode (it is overwrite in the process
 * @len:	Length of buffer in bytes
 * @key:	16-byte key to use
 */
void rc4_encode(unsigned char *buf, unsigned int len, const unsigned char key[16]);

#endif
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> 2018-05-06 17:58:06 -04:00			`/* SPDX-License-Identifier: GPL-2.0+ */`
Add rivest cipher 4 (rc4) implementation Add an implementation of RC4. This will be used by Rockchip booting but may be useful in other situations. Signed-off-by: Simon Glass <sjg@chromium.org> 2015-06-23 15:39:07 -06:00			`/*`
			`* (C) Copyright 2015 Google, Inc`
			`*`
			`* (C) Copyright 2008-2014 Rockchip Electronics`
			`*/`

			`#ifndef __RC4_H`
			`#define __RC4_H`

			`/**`
			`* rc4_encode() - encode a buf with the RC4 cipher`
			`*`
			`* @buf: Buffer to encode (it is overwrite in the process`
			`* @len: Length of buffer in bytes`
			`* @key: 16-byte key to use`
			`*/`
rc4: mark key as const Key data is never written so the parameter can be const, which allows putting fixed keys in .rodata. Signed-off-by: John Keeping <john@metanate.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> 2022-11-18 16:13:17 +00:00			`void rc4_encode(unsigned char *buf, unsigned int len, const unsigned char key[16]);`
Add rivest cipher 4 (rc4) implementation Add an implementation of RC4. This will be used by Rockchip booting but may be useful in other situations. Signed-off-by: Simon Glass <sjg@chromium.org> 2015-06-23 15:39:07 -06:00
			`#endif`