staging/skein: Remove Skein and Threefish code

It's been four years since this was added.  In the interim, skein has
not seen any mainstream adoption.  Same with the threefish block cipher
upon which it's based.

In the discussion over which hash algorithm will replace SHA1 in git,
it's not one of the contenders.

There's absolutely no reason to think that there is anything wrong with
Skein or Threefish.  The only reason for this removal is a lack of
adoption.

If a real user comes forward, I'd be happy to assist with integrating
this code into mainline.

Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 187 deletions

diff --git a/drivers/staging/skein/skein_iv.h b/drivers/staging/skein/skein_iv.h
deleted file mode 100644
index 916f029da726..000000000000
--- a/drivers/staging/skein/skein_iv.h
+++ /dev/null
@@ -1,187 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _SKEIN_IV_H_
-#define _SKEIN_IV_H_
-
-#include "skein_base.h"    /* get Skein macros and types */
-
-/*
- **************** Pre-computed Skein IVs *******************
- *
- * NOTE: these values are not "magic" constants, but
- * are generated using the Threefish block function.
- * They are pre-computed here only for speed; i.e., to
- * avoid the need for a Threefish call during Init().
- *
- * The IV for any fixed hash length may be pre-computed.
- * Only the most common values are included here.
- *
- ***********************************************************
- */
-
-#define MK_64 SKEIN_MK_64
-
-/* blkSize =  256 bits. hashSize =  128 bits */
-static const u64 SKEIN_256_IV_128[] = {
-	MK_64(0xE1111906, 0x964D7260),
-	MK_64(0x883DAAA7, 0x7C8D811C),
-	MK_64(0x10080DF4, 0x91960F7A),
-	MK_64(0xCCF7DDE5, 0xB45BC1C2)
-};
-
-/* blkSize =  256 bits. hashSize =  160 bits */
-static const u64 SKEIN_256_IV_160[] = {
-	MK_64(0x14202314, 0x72825E98),
-	MK_64(0x2AC4E9A2, 0x5A77E590),
-	MK_64(0xD47A5856, 0x8838D63E),
-	MK_64(0x2DD2E496, 0x8586AB7D)
-};
-
-/* blkSize =  256 bits. hashSize =  224 bits */
-static const u64 SKEIN_256_IV_224[] = {
-	MK_64(0xC6098A8C, 0x9AE5EA0B),
-	MK_64(0x876D5686, 0x08C5191C),
-	MK_64(0x99CB88D7, 0xD7F53884),
-	MK_64(0x384BDDB1, 0xAEDDB5DE)
-};
-
-/* blkSize =  256 bits. hashSize =  256 bits */
-static const u64 SKEIN_256_IV_256[] = {
-	MK_64(0xFC9DA860, 0xD048B449),
-	MK_64(0x2FCA6647, 0x9FA7D833),
-	MK_64(0xB33BC389, 0x6656840F),
-	MK_64(0x6A54E920, 0xFDE8DA69)
-};
-
-/* blkSize =  512 bits. hashSize =  128 bits */
-static const u64 SKEIN_512_IV_128[] = {
-	MK_64(0xA8BC7BF3, 0x6FBF9F52),
-	MK_64(0x1E9872CE, 0xBD1AF0AA),
-	MK_64(0x309B1790, 0xB32190D3),
-	MK_64(0xBCFBB854, 0x3F94805C),
-	MK_64(0x0DA61BCD, 0x6E31B11B),
-	MK_64(0x1A18EBEA, 0xD46A32E3),
-	MK_64(0xA2CC5B18, 0xCE84AA82),
-	MK_64(0x6982AB28, 0x9D46982D)
-};
-
-/* blkSize =  512 bits. hashSize =  160 bits */
-static const u64 SKEIN_512_IV_160[] = {
-	MK_64(0x28B81A2A, 0xE013BD91),
-	MK_64(0xC2F11668, 0xB5BDF78F),
-	MK_64(0x1760D8F3, 0xF6A56F12),
-	MK_64(0x4FB74758, 0x8239904F),
-	MK_64(0x21EDE07F, 0x7EAF5056),
-	MK_64(0xD908922E, 0x63ED70B8),
-	MK_64(0xB8EC76FF, 0xECCB52FA),
-	MK_64(0x01A47BB8, 0xA3F27A6E)
-};
-
-/* blkSize =  512 bits. hashSize =  224 bits */
-static const u64 SKEIN_512_IV_224[] = {
-	MK_64(0xCCD06162, 0x48677224),
-	MK_64(0xCBA65CF3, 0xA92339EF),
-	MK_64(0x8CCD69D6, 0x52FF4B64),
-	MK_64(0x398AED7B, 0x3AB890B4),
-	MK_64(0x0F59D1B1, 0x457D2BD0),
-	MK_64(0x6776FE65, 0x75D4EB3D),
-	MK_64(0x99FBC70E, 0x997413E9),
-	MK_64(0x9E2CFCCF, 0xE1C41EF7)
-};
-
-/* blkSize =  512 bits. hashSize =  256 bits */
-static const u64 SKEIN_512_IV_256[] = {
-	MK_64(0xCCD044A1, 0x2FDB3E13),
-	MK_64(0xE8359030, 0x1A79A9EB),
-	MK_64(0x55AEA061, 0x4F816E6F),
-	MK_64(0x2A2767A4, 0xAE9B94DB),
-	MK_64(0xEC06025E, 0x74DD7683),
-	MK_64(0xE7A436CD, 0xC4746251),
-	MK_64(0xC36FBAF9, 0x393AD185),
-	MK_64(0x3EEDBA18, 0x33EDFC13)
-};
-
-/* blkSize =  512 bits. hashSize =  384 bits */
-static const u64 SKEIN_512_IV_384[] = {
-	MK_64(0xA3F6C6BF, 0x3A75EF5F),
-	MK_64(0xB0FEF9CC, 0xFD84FAA4),
-	MK_64(0x9D77DD66, 0x3D770CFE),
-	MK_64(0xD798CBF3, 0xB468FDDA),
-	MK_64(0x1BC4A666, 0x8A0E4465),
-	MK_64(0x7ED7D434, 0xE5807407),
-	MK_64(0x548FC1AC, 0xD4EC44D6),
-	MK_64(0x266E1754, 0x6AA18FF8)
-};
-
-/* blkSize =  512 bits. hashSize =  512 bits */
-static const u64 SKEIN_512_IV_512[] = {
-	MK_64(0x4903ADFF, 0x749C51CE),
-	MK_64(0x0D95DE39, 0x9746DF03),
-	MK_64(0x8FD19341, 0x27C79BCE),
-	MK_64(0x9A255629, 0xFF352CB1),
-	MK_64(0x5DB62599, 0xDF6CA7B0),
-	MK_64(0xEABE394C, 0xA9D5C3F4),
-	MK_64(0x991112C7, 0x1A75B523),
-	MK_64(0xAE18A40B, 0x660FCC33)
-};
-
-/* blkSize = 1024 bits. hashSize =  384 bits */
-static const u64 SKEIN_1024_IV_384[] = {
-	MK_64(0x5102B6B8, 0xC1894A35),
-	MK_64(0xFEEBC9E3, 0xFE8AF11A),
-	MK_64(0x0C807F06, 0xE32BED71),
-	MK_64(0x60C13A52, 0xB41A91F6),
-	MK_64(0x9716D35D, 0xD4917C38),
-	MK_64(0xE780DF12, 0x6FD31D3A),
-	MK_64(0x797846B6, 0xC898303A),
-	MK_64(0xB172C2A8, 0xB3572A3B),
-	MK_64(0xC9BC8203, 0xA6104A6C),
-	MK_64(0x65909338, 0xD75624F4),
-	MK_64(0x94BCC568, 0x4B3F81A0),
-	MK_64(0x3EBBF51E, 0x10ECFD46),
-	MK_64(0x2DF50F0B, 0xEEB08542),
-	MK_64(0x3B5A6530, 0x0DBC6516),
-	MK_64(0x484B9CD2, 0x167BBCE1),
-	MK_64(0x2D136947, 0xD4CBAFEA)
-};
-
-/* blkSize = 1024 bits. hashSize =  512 bits */
-static const u64 SKEIN_1024_IV_512[] = {
-	MK_64(0xCAEC0E5D, 0x7C1B1B18),
-	MK_64(0xA01B0E04, 0x5F03E802),
-	MK_64(0x33840451, 0xED912885),
-	MK_64(0x374AFB04, 0xEAEC2E1C),
-	MK_64(0xDF25A0E2, 0x813581F7),
-	MK_64(0xE4004093, 0x8B12F9D2),
-	MK_64(0xA662D539, 0xC2ED39B6),
-	MK_64(0xFA8B85CF, 0x45D8C75A),
-	MK_64(0x8316ED8E, 0x29EDE796),
-	MK_64(0x053289C0, 0x2E9F91B8),
-	MK_64(0xC3F8EF1D, 0x6D518B73),
-	MK_64(0xBDCEC3C4, 0xD5EF332E),
-	MK_64(0x549A7E52, 0x22974487),
-	MK_64(0x67070872, 0x5B749816),
-	MK_64(0xB9CD28FB, 0xF0581BD1),
-	MK_64(0x0E2940B8, 0x15804974)
-};
-
-/* blkSize = 1024 bits. hashSize = 1024 bits */
-static const u64 SKEIN_1024_IV_1024[] = {
-	MK_64(0xD593DA07, 0x41E72355),
-	MK_64(0x15B5E511, 0xAC73E00C),
-	MK_64(0x5180E5AE, 0xBAF2C4F0),
-	MK_64(0x03BD41D3, 0xFCBCAFAF),
-	MK_64(0x1CAEC6FD, 0x1983A898),
-	MK_64(0x6E510B8B, 0xCDD0589F),
-	MK_64(0x77E2BDFD, 0xC6394ADA),
-	MK_64(0xC11E1DB5, 0x24DCB0A3),
-	MK_64(0xD6D14AF9, 0xC6329AB5),
-	MK_64(0x6A9B0BFC, 0x6EB67E0D),
-	MK_64(0x9243C60D, 0xCCFF1332),
-	MK_64(0x1A1F1DDE, 0x743F02D4),
-	MK_64(0x0996753C, 0x10ED0BB8),
-	MK_64(0x6572DD22, 0xF2B4969A),
-	MK_64(0x61FD3062, 0xD00A579A),
-	MK_64(0x1DE0536E, 0x8682E539)
-};
-
-#endif /* _SKEIN_IV_H_ */