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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2019-08-15 12:01:09 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2019-08-22 14:57:33 +1000
commit04007b0e6cbbab5836ac891626e91edf10d46341 (patch)
tree6ab34c77d53b585d844c628893c2eebf4c249751 /crypto
parent6b5c4818621fb0d3eda1d4059634b38e09bd7243 (diff)
crypto: des - split off DES library from generic DES cipher driver
Another one for the cipher museum: split off DES core processing into a separate module so other drivers (mostly for crypto accelerators) can reuse the code without pulling in the generic DES cipher itself. This will also permit the cipher interface to be made private to the crypto API itself once we move the only user in the kernel (CIFS) to this library interface. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig8
-rw-r--r--crypto/des_generic.c917
2 files changed, 49 insertions, 876 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 455a3354e291..42a17fe97703 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1306,9 +1306,13 @@ config CRYPTO_CAST6_AVX_X86_64
This module provides the Cast6 cipher algorithm that processes
eight blocks parallel using the AVX instruction set.
+config CRYPTO_LIB_DES
+ tristate
+
config CRYPTO_DES
tristate "DES and Triple DES EDE cipher algorithms"
select CRYPTO_ALGAPI
+ select CRYPTO_LIB_DES
help
DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
@@ -1316,7 +1320,7 @@ config CRYPTO_DES_SPARC64
tristate "DES and Triple DES EDE cipher algorithms (SPARC64)"
depends on SPARC64
select CRYPTO_ALGAPI
- select CRYPTO_DES
+ select CRYPTO_LIB_DES
help
DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3),
optimized using SPARC64 crypto opcodes.
@@ -1325,7 +1329,7 @@ config CRYPTO_DES3_EDE_X86_64
tristate "Triple DES EDE cipher algorithm (x86-64)"
depends on X86 && 64BIT
select CRYPTO_BLKCIPHER
- select CRYPTO_DES
+ select CRYPTO_LIB_DES
help
Triple DES EDE (FIPS 46-3) algorithm.
diff --git a/crypto/des_generic.c b/crypto/des_generic.c
index f15ae7660f1b..e021a321f584 100644
--- a/crypto/des_generic.c
+++ b/crypto/des_generic.c
@@ -13,832 +13,42 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/crypto.h>
-#include <linux/types.h>
-#include <crypto/des.h>
-
-#define ROL(x, r) ((x) = rol32((x), (r)))
-#define ROR(x, r) ((x) = ror32((x), (r)))
-
-struct des_ctx {
- u32 expkey[DES_EXPKEY_WORDS];
-};
-
-struct des3_ede_ctx {
- u32 expkey[DES3_EDE_EXPKEY_WORDS];
-};
-
-/* Lookup tables for key expansion */
-
-static const u8 pc1[256] = {
- 0x00, 0x00, 0x40, 0x04, 0x10, 0x10, 0x50, 0x14,
- 0x04, 0x40, 0x44, 0x44, 0x14, 0x50, 0x54, 0x54,
- 0x02, 0x02, 0x42, 0x06, 0x12, 0x12, 0x52, 0x16,
- 0x06, 0x42, 0x46, 0x46, 0x16, 0x52, 0x56, 0x56,
- 0x80, 0x08, 0xc0, 0x0c, 0x90, 0x18, 0xd0, 0x1c,
- 0x84, 0x48, 0xc4, 0x4c, 0x94, 0x58, 0xd4, 0x5c,
- 0x82, 0x0a, 0xc2, 0x0e, 0x92, 0x1a, 0xd2, 0x1e,
- 0x86, 0x4a, 0xc6, 0x4e, 0x96, 0x5a, 0xd6, 0x5e,
- 0x20, 0x20, 0x60, 0x24, 0x30, 0x30, 0x70, 0x34,
- 0x24, 0x60, 0x64, 0x64, 0x34, 0x70, 0x74, 0x74,
- 0x22, 0x22, 0x62, 0x26, 0x32, 0x32, 0x72, 0x36,
- 0x26, 0x62, 0x66, 0x66, 0x36, 0x72, 0x76, 0x76,
- 0xa0, 0x28, 0xe0, 0x2c, 0xb0, 0x38, 0xf0, 0x3c,
- 0xa4, 0x68, 0xe4, 0x6c, 0xb4, 0x78, 0xf4, 0x7c,
- 0xa2, 0x2a, 0xe2, 0x2e, 0xb2, 0x3a, 0xf2, 0x3e,
- 0xa6, 0x6a, 0xe6, 0x6e, 0xb6, 0x7a, 0xf6, 0x7e,
- 0x08, 0x80, 0x48, 0x84, 0x18, 0x90, 0x58, 0x94,
- 0x0c, 0xc0, 0x4c, 0xc4, 0x1c, 0xd0, 0x5c, 0xd4,
- 0x0a, 0x82, 0x4a, 0x86, 0x1a, 0x92, 0x5a, 0x96,
- 0x0e, 0xc2, 0x4e, 0xc6, 0x1e, 0xd2, 0x5e, 0xd6,
- 0x88, 0x88, 0xc8, 0x8c, 0x98, 0x98, 0xd8, 0x9c,
- 0x8c, 0xc8, 0xcc, 0xcc, 0x9c, 0xd8, 0xdc, 0xdc,
- 0x8a, 0x8a, 0xca, 0x8e, 0x9a, 0x9a, 0xda, 0x9e,
- 0x8e, 0xca, 0xce, 0xce, 0x9e, 0xda, 0xde, 0xde,
- 0x28, 0xa0, 0x68, 0xa4, 0x38, 0xb0, 0x78, 0xb4,
- 0x2c, 0xe0, 0x6c, 0xe4, 0x3c, 0xf0, 0x7c, 0xf4,
- 0x2a, 0xa2, 0x6a, 0xa6, 0x3a, 0xb2, 0x7a, 0xb6,
- 0x2e, 0xe2, 0x6e, 0xe6, 0x3e, 0xf2, 0x7e, 0xf6,
- 0xa8, 0xa8, 0xe8, 0xac, 0xb8, 0xb8, 0xf8, 0xbc,
- 0xac, 0xe8, 0xec, 0xec, 0xbc, 0xf8, 0xfc, 0xfc,
- 0xaa, 0xaa, 0xea, 0xae, 0xba, 0xba, 0xfa, 0xbe,
- 0xae, 0xea, 0xee, 0xee, 0xbe, 0xfa, 0xfe, 0xfe
-};
-
-static const u8 rs[256] = {
- 0x00, 0x00, 0x80, 0x80, 0x02, 0x02, 0x82, 0x82,
- 0x04, 0x04, 0x84, 0x84, 0x06, 0x06, 0x86, 0x86,
- 0x08, 0x08, 0x88, 0x88, 0x0a, 0x0a, 0x8a, 0x8a,
- 0x0c, 0x0c, 0x8c, 0x8c, 0x0e, 0x0e, 0x8e, 0x8e,
- 0x10, 0x10, 0x90, 0x90, 0x12, 0x12, 0x92, 0x92,
- 0x14, 0x14, 0x94, 0x94, 0x16, 0x16, 0x96, 0x96,
- 0x18, 0x18, 0x98, 0x98, 0x1a, 0x1a, 0x9a, 0x9a,
- 0x1c, 0x1c, 0x9c, 0x9c, 0x1e, 0x1e, 0x9e, 0x9e,
- 0x20, 0x20, 0xa0, 0xa0, 0x22, 0x22, 0xa2, 0xa2,
- 0x24, 0x24, 0xa4, 0xa4, 0x26, 0x26, 0xa6, 0xa6,
- 0x28, 0x28, 0xa8, 0xa8, 0x2a, 0x2a, 0xaa, 0xaa,
- 0x2c, 0x2c, 0xac, 0xac, 0x2e, 0x2e, 0xae, 0xae,
- 0x30, 0x30, 0xb0, 0xb0, 0x32, 0x32, 0xb2, 0xb2,
- 0x34, 0x34, 0xb4, 0xb4, 0x36, 0x36, 0xb6, 0xb6,
- 0x38, 0x38, 0xb8, 0xb8, 0x3a, 0x3a, 0xba, 0xba,
- 0x3c, 0x3c, 0xbc, 0xbc, 0x3e, 0x3e, 0xbe, 0xbe,
- 0x40, 0x40, 0xc0, 0xc0, 0x42, 0x42, 0xc2, 0xc2,
- 0x44, 0x44, 0xc4, 0xc4, 0x46, 0x46, 0xc6, 0xc6,
- 0x48, 0x48, 0xc8, 0xc8, 0x4a, 0x4a, 0xca, 0xca,
- 0x4c, 0x4c, 0xcc, 0xcc, 0x4e, 0x4e, 0xce, 0xce,
- 0x50, 0x50, 0xd0, 0xd0, 0x52, 0x52, 0xd2, 0xd2,
- 0x54, 0x54, 0xd4, 0xd4, 0x56, 0x56, 0xd6, 0xd6,
- 0x58, 0x58, 0xd8, 0xd8, 0x5a, 0x5a, 0xda, 0xda,
- 0x5c, 0x5c, 0xdc, 0xdc, 0x5e, 0x5e, 0xde, 0xde,
- 0x60, 0x60, 0xe0, 0xe0, 0x62, 0x62, 0xe2, 0xe2,
- 0x64, 0x64, 0xe4, 0xe4, 0x66, 0x66, 0xe6, 0xe6,
- 0x68, 0x68, 0xe8, 0xe8, 0x6a, 0x6a, 0xea, 0xea,
- 0x6c, 0x6c, 0xec, 0xec, 0x6e, 0x6e, 0xee, 0xee,
- 0x70, 0x70, 0xf0, 0xf0, 0x72, 0x72, 0xf2, 0xf2,
- 0x74, 0x74, 0xf4, 0xf4, 0x76, 0x76, 0xf6, 0xf6,
- 0x78, 0x78, 0xf8, 0xf8, 0x7a, 0x7a, 0xfa, 0xfa,
- 0x7c, 0x7c, 0xfc, 0xfc, 0x7e, 0x7e, 0xfe, 0xfe
-};
-
-static const u32 pc2[1024] = {
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
- 0x00040000, 0x00000000, 0x04000000, 0x00100000,
- 0x00400000, 0x00000008, 0x00000800, 0x40000000,
- 0x00440000, 0x00000008, 0x04000800, 0x40100000,
- 0x00000400, 0x00000020, 0x08000000, 0x00000100,
- 0x00040400, 0x00000020, 0x0c000000, 0x00100100,
- 0x00400400, 0x00000028, 0x08000800, 0x40000100,
- 0x00440400, 0x00000028, 0x0c000800, 0x40100100,
- 0x80000000, 0x00000010, 0x00000000, 0x00800000,
- 0x80040000, 0x00000010, 0x04000000, 0x00900000,
- 0x80400000, 0x00000018, 0x00000800, 0x40800000,
- 0x80440000, 0x00000018, 0x04000800, 0x40900000,
- 0x80000400, 0x00000030, 0x08000000, 0x00800100,
- 0x80040400, 0x00000030, 0x0c000000, 0x00900100,
- 0x80400400, 0x00000038, 0x08000800, 0x40800100,
- 0x80440400, 0x00000038, 0x0c000800, 0x40900100,
- 0x10000000, 0x00000000, 0x00200000, 0x00001000,
- 0x10040000, 0x00000000, 0x04200000, 0x00101000,
- 0x10400000, 0x00000008, 0x00200800, 0x40001000,
- 0x10440000, 0x00000008, 0x04200800, 0x40101000,
- 0x10000400, 0x00000020, 0x08200000, 0x00001100,
- 0x10040400, 0x00000020, 0x0c200000, 0x00101100,
- 0x10400400, 0x00000028, 0x08200800, 0x40001100,
- 0x10440400, 0x00000028, 0x0c200800, 0x40101100,
- 0x90000000, 0x00000010, 0x00200000, 0x00801000,
- 0x90040000, 0x00000010, 0x04200000, 0x00901000,
- 0x90400000, 0x00000018, 0x00200800, 0x40801000,
- 0x90440000, 0x00000018, 0x04200800, 0x40901000,
- 0x90000400, 0x00000030, 0x08200000, 0x00801100,
- 0x90040400, 0x00000030, 0x0c200000, 0x00901100,
- 0x90400400, 0x00000038, 0x08200800, 0x40801100,
- 0x90440400, 0x00000038, 0x0c200800, 0x40901100,
- 0x00000200, 0x00080000, 0x00000000, 0x00000004,
- 0x00040200, 0x00080000, 0x04000000, 0x00100004,
- 0x00400200, 0x00080008, 0x00000800, 0x40000004,
- 0x00440200, 0x00080008, 0x04000800, 0x40100004,
- 0x00000600, 0x00080020, 0x08000000, 0x00000104,
- 0x00040600, 0x00080020, 0x0c000000, 0x00100104,
- 0x00400600, 0x00080028, 0x08000800, 0x40000104,
- 0x00440600, 0x00080028, 0x0c000800, 0x40100104,
- 0x80000200, 0x00080010, 0x00000000, 0x00800004,
- 0x80040200, 0x00080010, 0x04000000, 0x00900004,
- 0x80400200, 0x00080018, 0x00000800, 0x40800004,
- 0x80440200, 0x00080018, 0x04000800, 0x40900004,
- 0x80000600, 0x00080030, 0x08000000, 0x00800104,
- 0x80040600, 0x00080030, 0x0c000000, 0x00900104,
- 0x80400600, 0x00080038, 0x08000800, 0x40800104,
- 0x80440600, 0x00080038, 0x0c000800, 0x40900104,
- 0x10000200, 0x00080000, 0x00200000, 0x00001004,
- 0x10040200, 0x00080000, 0x04200000, 0x00101004,
- 0x10400200, 0x00080008, 0x00200800, 0x40001004,
- 0x10440200, 0x00080008, 0x04200800, 0x40101004,
- 0x10000600, 0x00080020, 0x08200000, 0x00001104,
- 0x10040600, 0x00080020, 0x0c200000, 0x00101104,
- 0x10400600, 0x00080028, 0x08200800, 0x40001104,
- 0x10440600, 0x00080028, 0x0c200800, 0x40101104,
- 0x90000200, 0x00080010, 0x00200000, 0x00801004,
- 0x90040200, 0x00080010, 0x04200000, 0x00901004,
- 0x90400200, 0x00080018, 0x00200800, 0x40801004,
- 0x90440200, 0x00080018, 0x04200800, 0x40901004,
- 0x90000600, 0x00080030, 0x08200000, 0x00801104,
- 0x90040600, 0x00080030, 0x0c200000, 0x00901104,
- 0x90400600, 0x00080038, 0x08200800, 0x40801104,
- 0x90440600, 0x00080038, 0x0c200800, 0x40901104,
- 0x00000002, 0x00002000, 0x20000000, 0x00000001,
- 0x00040002, 0x00002000, 0x24000000, 0x00100001,
- 0x00400002, 0x00002008, 0x20000800, 0x40000001,
- 0x00440002, 0x00002008, 0x24000800, 0x40100001,
- 0x00000402, 0x00002020, 0x28000000, 0x00000101,
- 0x00040402, 0x00002020, 0x2c000000, 0x00100101,
- 0x00400402, 0x00002028, 0x28000800, 0x40000101,
- 0x00440402, 0x00002028, 0x2c000800, 0x40100101,
- 0x80000002, 0x00002010, 0x20000000, 0x00800001,
- 0x80040002, 0x00002010, 0x24000000, 0x00900001,
- 0x80400002, 0x00002018, 0x20000800, 0x40800001,
- 0x80440002, 0x00002018, 0x24000800, 0x40900001,
- 0x80000402, 0x00002030, 0x28000000, 0x00800101,
- 0x80040402, 0x00002030, 0x2c000000, 0x00900101,
- 0x80400402, 0x00002038, 0x28000800, 0x40800101,
- 0x80440402, 0x00002038, 0x2c000800, 0x40900101,
- 0x10000002, 0x00002000, 0x20200000, 0x00001001,
- 0x10040002, 0x00002000, 0x24200000, 0x00101001,
- 0x10400002, 0x00002008, 0x20200800, 0x40001001,
- 0x10440002, 0x00002008, 0x24200800, 0x40101001,
- 0x10000402, 0x00002020, 0x28200000, 0x00001101,
- 0x10040402, 0x00002020, 0x2c200000, 0x00101101,
- 0x10400402, 0x00002028, 0x28200800, 0x40001101,
- 0x10440402, 0x00002028, 0x2c200800, 0x40101101,
- 0x90000002, 0x00002010, 0x20200000, 0x00801001,
- 0x90040002, 0x00002010, 0x24200000, 0x00901001,
- 0x90400002, 0x00002018, 0x20200800, 0x40801001,
- 0x90440002, 0x00002018, 0x24200800, 0x40901001,
- 0x90000402, 0x00002030, 0x28200000, 0x00801101,
- 0x90040402, 0x00002030, 0x2c200000, 0x00901101,
- 0x90400402, 0x00002038, 0x28200800, 0x40801101,
- 0x90440402, 0x00002038, 0x2c200800, 0x40901101,
- 0x00000202, 0x00082000, 0x20000000, 0x00000005,
- 0x00040202, 0x00082000, 0x24000000, 0x00100005,
- 0x00400202, 0x00082008, 0x20000800, 0x40000005,
- 0x00440202, 0x00082008, 0x24000800, 0x40100005,
- 0x00000602, 0x00082020, 0x28000000, 0x00000105,
- 0x00040602, 0x00082020, 0x2c000000, 0x00100105,
- 0x00400602, 0x00082028, 0x28000800, 0x40000105,
- 0x00440602, 0x00082028, 0x2c000800, 0x40100105,
- 0x80000202, 0x00082010, 0x20000000, 0x00800005,
- 0x80040202, 0x00082010, 0x24000000, 0x00900005,
- 0x80400202, 0x00082018, 0x20000800, 0x40800005,
- 0x80440202, 0x00082018, 0x24000800, 0x40900005,
- 0x80000602, 0x00082030, 0x28000000, 0x00800105,
- 0x80040602, 0x00082030, 0x2c000000, 0x00900105,
- 0x80400602, 0x00082038, 0x28000800, 0x40800105,
- 0x80440602, 0x00082038, 0x2c000800, 0x40900105,
- 0x10000202, 0x00082000, 0x20200000, 0x00001005,
- 0x10040202, 0x00082000, 0x24200000, 0x00101005,
- 0x10400202, 0x00082008, 0x20200800, 0x40001005,
- 0x10440202, 0x00082008, 0x24200800, 0x40101005,
- 0x10000602, 0x00082020, 0x28200000, 0x00001105,
- 0x10040602, 0x00082020, 0x2c200000, 0x00101105,
- 0x10400602, 0x00082028, 0x28200800, 0x40001105,
- 0x10440602, 0x00082028, 0x2c200800, 0x40101105,
- 0x90000202, 0x00082010, 0x20200000, 0x00801005,
- 0x90040202, 0x00082010, 0x24200000, 0x00901005,
- 0x90400202, 0x00082018, 0x20200800, 0x40801005,
- 0x90440202, 0x00082018, 0x24200800, 0x40901005,
- 0x90000602, 0x00082030, 0x28200000, 0x00801105,
- 0x90040602, 0x00082030, 0x2c200000, 0x00901105,
- 0x90400602, 0x00082038, 0x28200800, 0x40801105,
- 0x90440602, 0x00082038, 0x2c200800, 0x40901105,
-
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000008, 0x00080000, 0x10000000,
- 0x02000000, 0x00000000, 0x00000080, 0x00001000,
- 0x02000000, 0x00000008, 0x00080080, 0x10001000,
- 0x00004000, 0x00000000, 0x00000040, 0x00040000,
- 0x00004000, 0x00000008, 0x00080040, 0x10040000,
- 0x02004000, 0x00000000, 0x000000c0, 0x00041000,
- 0x02004000, 0x00000008, 0x000800c0, 0x10041000,
- 0x00020000, 0x00008000, 0x08000000, 0x00200000,
- 0x00020000, 0x00008008, 0x08080000, 0x10200000,
- 0x02020000, 0x00008000, 0x08000080, 0x00201000,
- 0x02020000, 0x00008008, 0x08080080, 0x10201000,
- 0x00024000, 0x00008000, 0x08000040, 0x00240000,
- 0x00024000, 0x00008008, 0x08080040, 0x10240000,
- 0x02024000, 0x00008000, 0x080000c0, 0x00241000,
- 0x02024000, 0x00008008, 0x080800c0, 0x10241000,
- 0x00000000, 0x01000000, 0x00002000, 0x00000020,
- 0x00000000, 0x01000008, 0x00082000, 0x10000020,
- 0x02000000, 0x01000000, 0x00002080, 0x00001020,
- 0x02000000, 0x01000008, 0x00082080, 0x10001020,
- 0x00004000, 0x01000000, 0x00002040, 0x00040020,
- 0x00004000, 0x01000008, 0x00082040, 0x10040020,
- 0x02004000, 0x01000000, 0x000020c0, 0x00041020,
- 0x02004000, 0x01000008, 0x000820c0, 0x10041020,
- 0x00020000, 0x01008000, 0x08002000, 0x00200020,
- 0x00020000, 0x01008008, 0x08082000, 0x10200020,
- 0x02020000, 0x01008000, 0x08002080, 0x00201020,
- 0x02020000, 0x01008008, 0x08082080, 0x10201020,
- 0x00024000, 0x01008000, 0x08002040, 0x00240020,
- 0x00024000, 0x01008008, 0x08082040, 0x10240020,
- 0x02024000, 0x01008000, 0x080020c0, 0x00241020,
- 0x02024000, 0x01008008, 0x080820c0, 0x10241020,
- 0x00000400, 0x04000000, 0x00100000, 0x00000004,
- 0x00000400, 0x04000008, 0x00180000, 0x10000004,
- 0x02000400, 0x04000000, 0x00100080, 0x00001004,
- 0x02000400, 0x04000008, 0x00180080, 0x10001004,
- 0x00004400, 0x04000000, 0x00100040, 0x00040004,
- 0x00004400, 0x04000008, 0x00180040, 0x10040004,
- 0x02004400, 0x04000000, 0x001000c0, 0x00041004,
- 0x02004400, 0x04000008, 0x001800c0, 0x10041004,
- 0x00020400, 0x04008000, 0x08100000, 0x00200004,
- 0x00020400, 0x04008008, 0x08180000, 0x10200004,
- 0x02020400, 0x04008000, 0x08100080, 0x00201004,
- 0x02020400, 0x04008008, 0x08180080, 0x10201004,
- 0x00024400, 0x04008000, 0x08100040, 0x00240004,
- 0x00024400, 0x04008008, 0x08180040, 0x10240004,
- 0x02024400, 0x04008000, 0x081000c0, 0x00241004,
- 0x02024400, 0x04008008, 0x081800c0, 0x10241004,
- 0x00000400, 0x05000000, 0x00102000, 0x00000024,
- 0x00000400, 0x05000008, 0x00182000, 0x10000024,
- 0x02000400, 0x05000000, 0x00102080, 0x00001024,
- 0x02000400, 0x05000008, 0x00182080, 0x10001024,
- 0x00004400, 0x05000000, 0x00102040, 0x00040024,
- 0x00004400, 0x05000008, 0x00182040, 0x10040024,
- 0x02004400, 0x05000000, 0x001020c0, 0x00041024,
- 0x02004400, 0x05000008, 0x001820c0, 0x10041024,
- 0x00020400, 0x05008000, 0x08102000, 0x00200024,
- 0x00020400, 0x05008008, 0x08182000, 0x10200024,
- 0x02020400, 0x05008000, 0x08102080, 0x00201024,
- 0x02020400, 0x05008008, 0x08182080, 0x10201024,
- 0x00024400, 0x05008000, 0x08102040, 0x00240024,
- 0x00024400, 0x05008008, 0x08182040, 0x10240024,
- 0x02024400, 0x05008000, 0x081020c0, 0x00241024,
- 0x02024400, 0x05008008, 0x081820c0, 0x10241024,
- 0x00000800, 0x00010000, 0x20000000, 0x00000010,
- 0x00000800, 0x00010008, 0x20080000, 0x10000010,
- 0x02000800, 0x00010000, 0x20000080, 0x00001010,
- 0x02000800, 0x00010008, 0x20080080, 0x10001010,
- 0x00004800, 0x00010000, 0x20000040, 0x00040010,
- 0x00004800, 0x00010008, 0x20080040, 0x10040010,
- 0x02004800, 0x00010000, 0x200000c0, 0x00041010,
- 0x02004800, 0x00010008, 0x200800c0, 0x10041010,
- 0x00020800, 0x00018000, 0x28000000, 0x00200010,
- 0x00020800, 0x00018008, 0x28080000, 0x10200010,
- 0x02020800, 0x00018000, 0x28000080, 0x00201010,
- 0x02020800, 0x00018008, 0x28080080, 0x10201010,
- 0x00024800, 0x00018000, 0x28000040, 0x00240010,
- 0x00024800, 0x00018008, 0x28080040, 0x10240010,
- 0x02024800, 0x00018000, 0x280000c0, 0x00241010,
- 0x02024800, 0x00018008, 0x280800c0, 0x10241010,
- 0x00000800, 0x01010000, 0x20002000, 0x00000030,
- 0x00000800, 0x01010008, 0x20082000, 0x10000030,
- 0x02000800, 0x01010000, 0x20002080, 0x00001030,
- 0x02000800, 0x01010008, 0x20082080, 0x10001030,
- 0x00004800, 0x01010000, 0x20002040, 0x00040030,
- 0x00004800, 0x01010008, 0x20082040, 0x10040030,
- 0x02004800, 0x01010000, 0x200020c0, 0x00041030,
- 0x02004800, 0x01010008, 0x200820c0, 0x10041030,
- 0x00020800, 0x01018000, 0x28002000, 0x00200030,
- 0x00020800, 0x01018008, 0x28082000, 0x10200030,
- 0x02020800, 0x01018000, 0x28002080, 0x00201030,
- 0x02020800, 0x01018008, 0x28082080, 0x10201030,
- 0x00024800, 0x01018000, 0x28002040, 0x00240030,
- 0x00024800, 0x01018008, 0x28082040, 0x10240030,
- 0x02024800, 0x01018000, 0x280020c0, 0x00241030,
- 0x02024800, 0x01018008, 0x280820c0, 0x10241030,
- 0x00000c00, 0x04010000, 0x20100000, 0x00000014,
- 0x00000c00, 0x04010008, 0x20180000, 0x10000014,
- 0x02000c00, 0x04010000, 0x20100080, 0x00001014,
- 0x02000c00, 0x04010008, 0x20180080, 0x10001014,
- 0x00004c00, 0x04010000, 0x20100040, 0x00040014,
- 0x00004c00, 0x04010008, 0x20180040, 0x10040014,
- 0x02004c00, 0x04010000, 0x201000c0, 0x00041014,
- 0x02004c00, 0x04010008, 0x201800c0, 0x10041014,
- 0x00020c00, 0x04018000, 0x28100000, 0x00200014,
- 0x00020c00, 0x04018008, 0x28180000, 0x10200014,
- 0x02020c00, 0x04018000, 0x28100080, 0x00201014,
- 0x02020c00, 0x04018008, 0x28180080, 0x10201014,
- 0x00024c00, 0x04018000, 0x28100040, 0x00240014,
- 0x00024c00, 0x04018008, 0x28180040, 0x10240014,
- 0x02024c00, 0x04018000, 0x281000c0, 0x00241014,
- 0x02024c00, 0x04018008, 0x281800c0, 0x10241014,
- 0x00000c00, 0x05010000, 0x20102000, 0x00000034,
- 0x00000c00, 0x05010008, 0x20182000, 0x10000034,
- 0x02000c00, 0x05010000, 0x20102080, 0x00001034,
- 0x02000c00, 0x05010008, 0x20182080, 0x10001034,
- 0x00004c00, 0x05010000, 0x20102040, 0x00040034,
- 0x00004c00, 0x05010008, 0x20182040, 0x10040034,
- 0x02004c00, 0x05010000, 0x201020c0, 0x00041034,
- 0x02004c00, 0x05010008, 0x201820c0, 0x10041034,
- 0x00020c00, 0x05018000, 0x28102000, 0x00200034,
- 0x00020c00, 0x05018008, 0x28182000, 0x10200034,
- 0x02020c00, 0x05018000, 0x28102080, 0x00201034,
- 0x02020c00, 0x05018008, 0x28182080, 0x10201034,
- 0x00024c00, 0x05018000, 0x28102040, 0x00240034,
- 0x00024c00, 0x05018008, 0x28182040, 0x10240034,
- 0x02024c00, 0x05018000, 0x281020c0, 0x00241034,
- 0x02024c00, 0x05018008, 0x281820c0, 0x10241034
-};
-
-/* S-box lookup tables */
-
-static const u32 S1[64] = {
- 0x01010400, 0x00000000, 0x00010000, 0x01010404,
- 0x01010004, 0x00010404, 0x00000004, 0x00010000,
- 0x00000400, 0x01010400, 0x01010404, 0x00000400,
- 0x01000404, 0x01010004, 0x01000000, 0x00000004,
- 0x00000404, 0x01000400, 0x01000400, 0x00010400,
- 0x00010400, 0x01010000, 0x01010000, 0x01000404,
- 0x00010004, 0x01000004, 0x01000004, 0x00010004,
- 0x00000000, 0x00000404, 0x00010404, 0x01000000,
- 0x00010000, 0x01010404, 0x00000004, 0x01010000,
- 0x01010400, 0x01000000, 0x01000000, 0x00000400,
- 0x01010004, 0x00010000, 0x00010400, 0x01000004,
- 0x00000400, 0x00000004, 0x01000404, 0x00010404,
- 0x01010404, 0x00010004, 0x01010000, 0x01000404,
- 0x01000004, 0x00000404, 0x00010404, 0x01010400,
- 0x00000404, 0x01000400, 0x01000400, 0x00000000,
- 0x00010004, 0x00010400, 0x00000000, 0x01010004
-};
-
-static const u32 S2[64] = {
- 0x80108020, 0x80008000, 0x00008000, 0x00108020,
- 0x00100000, 0x00000020, 0x80100020, 0x80008020,
- 0x80000020, 0x80108020, 0x80108000, 0x80000000,
- 0x80008000, 0x00100000, 0x00000020, 0x80100020,
- 0x00108000, 0x00100020, 0x80008020, 0x00000000,
- 0x80000000, 0x00008000, 0x00108020, 0x80100000,
- 0x00100020, 0x80000020, 0x00000000, 0x00108000,
- 0x00008020, 0x80108000, 0x80100000, 0x00008020,
- 0x00000000, 0x00108020, 0x80100020, 0x00100000,
- 0x80008020, 0x80100000, 0x80108000, 0x00008000,
- 0x80100000, 0x80008000, 0x00000020, 0x80108020,
- 0x00108020, 0x00000020, 0x00008000, 0x80000000,
- 0x00008020, 0x80108000, 0x00100000, 0x80000020,
- 0x00100020, 0x80008020, 0x80000020, 0x00100020,
- 0x00108000, 0x00000000, 0x80008000, 0x00008020,
- 0x80000000, 0x80100020, 0x80108020, 0x00108000
-};
-
-static const u32 S3[64] = {
- 0x00000208, 0x08020200, 0x00000000, 0x08020008,
- 0x08000200, 0x00000000, 0x00020208, 0x08000200,
- 0x00020008, 0x08000008, 0x08000008, 0x00020000,
- 0x08020208, 0x00020008, 0x08020000, 0x00000208,
- 0x08000000, 0x00000008, 0x08020200, 0x00000200,
- 0x00020200, 0x08020000, 0x08020008, 0x00020208,
- 0x08000208, 0x00020200, 0x00020000, 0x08000208,
- 0x00000008, 0x08020208, 0x00000200, 0x08000000,
- 0x08020200, 0x08000000, 0x00020008, 0x00000208,
- 0x00020000, 0x08020200, 0x08000200, 0x00000000,
- 0x00000200, 0x00020008, 0x08020208, 0x08000200,
- 0x08000008, 0x00000200, 0x00000000, 0x08020008,
- 0x08000208, 0x00020000, 0x08000000, 0x08020208,
- 0x00000008, 0x00020208, 0x00020200, 0x08000008,
- 0x08020000, 0x08000208, 0x00000208, 0x08020000,
- 0x00020208, 0x00000008, 0x08020008, 0x00020200
-};
-
-static const u32 S4[64] = {
- 0x00802001, 0x00002081, 0x00002081, 0x00000080,
- 0x00802080, 0x00800081, 0x00800001, 0x00002001,
- 0x00000000, 0x00802000, 0x00802000, 0x00802081,
- 0x00000081, 0x00000000, 0x00800080, 0x00800001,
- 0x00000001, 0x00002000, 0x00800000, 0x00802001,
- 0x00000080, 0x00800000, 0x00002001, 0x00002080,
- 0x00800081, 0x00000001, 0x00002080, 0x00800080,
- 0x00002000, 0x00802080, 0x00802081, 0x00000081,
- 0x00800080, 0x00800001, 0x00802000, 0x00802081,
- 0x00000081, 0x00000000, 0x00000000, 0x00802000,
- 0x00002080, 0x00800080, 0x00800081, 0x00000001,
- 0x00802001, 0x00002081, 0x00002081, 0x00000080,
- 0x00802081, 0x00000081, 0x00000001, 0x00002000,
- 0x00800001, 0x00002001, 0x00802080, 0x00800081,
- 0x00002001, 0x00002080, 0x00800000, 0x00802001,
- 0x00000080, 0x00800000, 0x00002000, 0x00802080
-};
-
-static const u32 S5[64] = {
- 0x00000100, 0x02080100, 0x02080000, 0x42000100,
- 0x00080000, 0x00000100, 0x40000000, 0x02080000,
- 0x40080100, 0x00080000, 0x02000100, 0x40080100,
- 0x42000100, 0x42080000, 0x00080100, 0x40000000,
- 0x02000000, 0x40080000, 0x40080000, 0x00000000,
- 0x40000100, 0x42080100, 0x42080100, 0x02000100,
- 0x42080000, 0x40000100, 0x00000000, 0x42000000,
- 0x02080100, 0x02000000, 0x42000000, 0x00080100,
- 0x00080000, 0x42000100, 0x00000100, 0x02000000,
- 0x40000000, 0x02080000, 0x42000100, 0x40080100,
- 0x02000100, 0x40000000, 0x42080000, 0x02080100,
- 0x40080100, 0x00000100, 0x02000000, 0x42080000,
- 0x42080100, 0x00080100, 0x42000000, 0x42080100,
- 0x02080000, 0x00000000, 0x40080000, 0x42000000,
- 0x00080100, 0x02000100, 0x40000100, 0x00080000,
- 0x00000000, 0x40080000, 0x02080100, 0x40000100
-};
-
-static const u32 S6[64] = {
- 0x20000010, 0x20400000, 0x00004000, 0x20404010,
- 0x20400000, 0x00000010, 0x20404010, 0x00400000,
- 0x20004000, 0x00404010, 0x00400000, 0x20000010,
- 0x00400010, 0x20004000, 0x20000000, 0x00004010,
- 0x00000000, 0x00400010, 0x20004010, 0x00004000,
- 0x00404000, 0x20004010, 0x00000010, 0x20400010,
- 0x20400010, 0x00000000, 0x00404010, 0x20404000,
- 0x00004010, 0x00404000, 0x20404000, 0x20000000,
- 0x20004000, 0x00000010, 0x20400010, 0x00404000,
- 0x20404010, 0x00400000, 0x00004010, 0x20000010,
- 0x00400000, 0x20004000, 0x20000000, 0x00004010,
- 0x20000010, 0x20404010, 0x00404000, 0x20400000,
- 0x00404010, 0x20404000, 0x00000000, 0x20400010,
- 0x00000010, 0x00004000, 0x20400000, 0x00404010,
- 0x00004000, 0x00400010, 0x20004010, 0x00000000,
- 0x20404000, 0x20000000, 0x00400010, 0x20004010
-};
-
-static const u32 S7[64] = {
- 0x00200000, 0x04200002, 0x04000802, 0x00000000,
- 0x00000800, 0x04000802, 0x00200802, 0x04200800,
- 0x04200802, 0x00200000, 0x00000000, 0x04000002,
- 0x00000002, 0x04000000, 0x04200002, 0x00000802,
- 0x04000800, 0x00200802, 0x00200002, 0x04000800,
- 0x04000002, 0x04200000, 0x04200800, 0x00200002,
- 0x04200000, 0x00000800, 0x00000802, 0x04200802,
- 0x00200800, 0x00000002, 0x04000000, 0x00200800,
- 0x04000000, 0x00200800, 0x00200000, 0x04000802,
- 0x04000802, 0x04200002, 0x04200002, 0x00000002,
- 0x00200002, 0x04000000, 0x04000800, 0x00200000,
- 0x04200800, 0x00000802, 0x00200802, 0x04200800,
- 0x00000802, 0x04000002, 0x04200802, 0x04200000,
- 0x00200800, 0x00000000, 0x00000002, 0x04200802,
- 0x00000000, 0x00200802, 0x04200000, 0x00000800,
- 0x04000002, 0x04000800, 0x00000800, 0x00200002
-};
-
-static const u32 S8[64] = {
- 0x10001040, 0x00001000, 0x00040000, 0x10041040,
- 0x10000000, 0x10001040, 0x00000040, 0x10000000,
- 0x00040040, 0x10040000, 0x10041040, 0x00041000,
- 0x10041000, 0x00041040, 0x00001000, 0x00000040,
- 0x10040000, 0x10000040, 0x10001000, 0x00001040,
- 0x00041000, 0x00040040, 0x10040040, 0x10041000,
- 0x00001040, 0x00000000, 0x00000000, 0x10040040,
- 0x10000040, 0x10001000, 0x00041040, 0x00040000,
- 0x00041040, 0x00040000, 0x10041000, 0x00001000,
- 0x00000040, 0x10040040, 0x00001000, 0x00041040,
- 0x10001000, 0x00000040, 0x10000040, 0x10040000,
- 0x10040040, 0x10000000, 0x00040000, 0x10001040,
- 0x00000000, 0x10041040, 0x00040040, 0x10000040,
- 0x10040000, 0x10001000, 0x10001040, 0x00000000,
- 0x10041040, 0x00041000, 0x00041000, 0x00001040,
- 0x00001040, 0x00040040, 0x10000000, 0x10041000
-};
-
-/* Encryption components: IP, FP, and round function */
-
-#define IP(L, R, T) \
- ROL(R, 4); \
- T = L; \
- L ^= R; \
- L &= 0xf0f0f0f0; \
- R ^= L; \
- L ^= T; \
- ROL(R, 12); \
- T = L; \
- L ^= R; \
- L &= 0xffff0000; \
- R ^= L; \
- L ^= T; \
- ROR(R, 14); \
- T = L; \
- L ^= R; \
- L &= 0xcccccccc; \
- R ^= L; \
- L ^= T; \
- ROL(R, 6); \
- T = L; \
- L ^= R; \
- L &= 0xff00ff00; \
- R ^= L; \
- L ^= T; \
- ROR(R, 7); \
- T = L; \
- L ^= R; \
- L &= 0xaaaaaaaa; \
- R ^= L; \
- L ^= T; \
- ROL(L, 1);
-
-#define FP(L, R, T) \
- ROR(L, 1); \
- T = L; \
- L ^= R; \
- L &= 0xaaaaaaaa; \
- R ^= L; \
- L ^= T; \
- ROL(R, 7); \
- T = L; \
- L ^= R; \
- L &= 0xff00ff00; \
- R ^= L; \
- L ^= T; \
- ROR(R, 6); \
- T = L; \
- L ^= R; \
- L &= 0xcccccccc; \
- R ^= L; \
- L ^= T; \
- ROL(R, 14); \
- T = L; \
- L ^= R; \
- L &= 0xffff0000; \
- R ^= L; \
- L ^= T; \
- ROR(R, 12); \
- T = L; \
- L ^= R; \
- L &= 0xf0f0f0f0; \
- R ^= L; \
- L ^= T; \
- ROR(R, 4);
-
-#define ROUND(L, R, A, B, K, d) \
- B = K[0]; A = K[1]; K += d; \
- B ^= R; A ^= R; \
- B &= 0x3f3f3f3f; ROR(A, 4); \
- L ^= S8[0xff & B]; A &= 0x3f3f3f3f; \
- L ^= S6[0xff & (B >> 8)]; B >>= 16; \
- L ^= S7[0xff & A]; \
- L ^= S5[0xff & (A >> 8)]; A >>= 16; \
- L ^= S4[0xff & B]; \
- L ^= S2[0xff & (B >> 8)]; \
- L ^= S3[0xff & A]; \
- L ^= S1[0xff & (A >> 8)];
-
-/*
- * PC2 lookup tables are organized as 2 consecutive sets of 4 interleaved
- * tables of 128 elements. One set is for C_i and the other for D_i, while
- * the 4 interleaved tables correspond to four 7-bit subsets of C_i or D_i.
- *
- * After PC1 each of the variables a,b,c,d contains a 7 bit subset of C_i
- * or D_i in bits 7-1 (bit 0 being the least significant).
- */
-
-#define T1(x) pt[2 * (x) + 0]
-#define T2(x) pt[2 * (x) + 1]
-#define T3(x) pt[2 * (x) + 2]
-#define T4(x) pt[2 * (x) + 3]
-
-#define DES_PC2(a, b, c, d) (T4(d) | T3(c) | T2(b) | T1(a))
-
-/*
- * Encryption key expansion
- *
- * RFC2451: Weak key checks SHOULD be performed.
- *
- * FIPS 74:
- *
- * Keys having duals are keys which produce all zeros, all ones, or
- * alternating zero-one patterns in the C and D registers after Permuted
- * Choice 1 has operated on the key.
- *
- */
-unsigned long des_ekey(u32 *pe, const u8 *k)
-{
- /* K&R: long is at least 32 bits */
- unsigned long a, b, c, d, w;
- const u32 *pt = pc2;
-
- d = k[4]; d &= 0x0e; d <<= 4; d |= k[0] & 0x1e; d = pc1[d];
- c = k[5]; c &= 0x0e; c <<= 4; c |= k[1] & 0x1e; c = pc1[c];
- b = k[6]; b &= 0x0e; b <<= 4; b |= k[2] & 0x1e; b = pc1[b];
- a = k[7]; a &= 0x0e; a <<= 4; a |= k[3] & 0x1e; a = pc1[a];
-
- pe[15 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d];
- pe[14 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[13 * 2 + 0] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[12 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[11 * 2 + 0] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[10 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[ 9 * 2 + 0] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[ 8 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c];
- pe[ 7 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[ 6 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[ 5 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[ 4 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[ 3 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[ 2 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[ 1 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b];
- pe[ 0 * 2 + 0] = DES_PC2(b, c, d, a);
-
- /* Check if first half is weak */
- w = (a ^ c) | (b ^ d) | (rs[a] ^ c) | (b ^ rs[d]);
-
- /* Skip to next table set */
- pt += 512;
-
- d = k[0]; d &= 0xe0; d >>= 4; d |= k[4] & 0xf0; d = pc1[d + 1];
- c = k[1]; c &= 0xe0; c >>= 4; c |= k[5] & 0xf0; c = pc1[c + 1];
- b = k[2]; b &= 0xe0; b >>= 4; b |= k[6] & 0xf0; b = pc1[b + 1];
- a = k[3]; a &= 0xe0; a >>= 4; a |= k[7] & 0xf0; a = pc1[a + 1];
-
- /* Check if second half is weak */
- w |= (a ^ c) | (b ^ d) | (rs[a] ^ c) | (b ^ rs[d]);
-
- pe[15 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d];
- pe[14 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[13 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[12 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[11 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[10 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[ 9 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[ 8 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c];
- pe[ 7 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[ 6 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[ 5 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[ 4 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[ 3 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[ 2 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[ 1 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b];
- pe[ 0 * 2 + 1] = DES_PC2(b, c, d, a);
-
- /* Fixup: 2413 5768 -> 1357 2468 */
- for (d = 0; d < 16; ++d) {
- a = pe[2 * d];
- b = pe[2 * d + 1];
- c = a ^ b;
- c &= 0xffff0000;
- a ^= c;
- b ^= c;
- ROL(b, 18);
- pe[2 * d] = a;
- pe[2 * d + 1] = b;
- }
-
- /* Zero if weak key */
- return w;
-}
-EXPORT_SYMBOL_GPL(des_ekey);
-
-/*
- * Decryption key expansion
- *
- * No weak key checking is performed, as this is only used by triple DES
- *
- */
-static void dkey(u32 *pe, const u8 *k)
-{
- /* K&R: long is at least 32 bits */
- unsigned long a, b, c, d;
- const u32 *pt = pc2;
-
- d = k[4]; d &= 0x0e; d <<= 4; d |= k[0] & 0x1e; d = pc1[d];
- c = k[5]; c &= 0x0e; c <<= 4; c |= k[1] & 0x1e; c = pc1[c];
- b = k[6]; b &= 0x0e; b <<= 4; b |= k[2] & 0x1e; b = pc1[b];
- a = k[7]; a &= 0x0e; a <<= 4; a |= k[3] & 0x1e; a = pc1[a];
-
- pe[ 0 * 2] = DES_PC2(a, b, c, d); d = rs[d];
- pe[ 1 * 2] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[ 2 * 2] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[ 3 * 2] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[ 4 * 2] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[ 5 * 2] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[ 6 * 2] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[ 7 * 2] = DES_PC2(d, a, b, c); c = rs[c];
- pe[ 8 * 2] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[ 9 * 2] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[10 * 2] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[11 * 2] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[12 * 2] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[13 * 2] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[14 * 2] = DES_PC2(c, d, a, b); b = rs[b];
- pe[15 * 2] = DES_PC2(b, c, d, a);
-
- /* Skip to next table set */
- pt += 512;
-
- d = k[0]; d &= 0xe0; d >>= 4; d |= k[4] & 0xf0; d = pc1[d + 1];
- c = k[1]; c &= 0xe0; c >>= 4; c |= k[5] & 0xf0; c = pc1[c + 1];
- b = k[2]; b &= 0xe0; b >>= 4; b |= k[6] & 0xf0; b = pc1[b + 1];
- a = k[3]; a &= 0xe0; a >>= 4; a |= k[7] & 0xf0; a = pc1[a + 1];
-
- pe[ 0 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d];
- pe[ 1 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[ 2 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[ 3 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[ 4 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[ 5 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
- pe[ 6 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
- pe[ 7 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c];
- pe[ 8 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[ 9 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[10 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[11 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[12 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
- pe[13 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
- pe[14 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b];
- pe[15 * 2 + 1] = DES_PC2(b, c, d, a);
-
- /* Fixup: 2413 5768 -> 1357 2468 */
- for (d = 0; d < 16; ++d) {
- a = pe[2 * d];
- b = pe[2 * d + 1];
- c = a ^ b;
- c &= 0xffff0000;
- a ^= c;
- b ^= c;
- ROL(b, 18);
- pe[2 * d] = a;
- pe[2 * d + 1] = b;
- }
-}
+#include <crypto/internal/des.h>
static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen)
{
struct des_ctx *dctx = crypto_tfm_ctx(tfm);
- u32 *flags = &tfm->crt_flags;
- u32 tmp[DES_EXPKEY_WORDS];
- int ret;
-
- /* Expand to tmp */
- ret = des_ekey(tmp, key);
+ int err;
- if (unlikely(ret == 0) && (*flags & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) {
- *flags |= CRYPTO_TFM_RES_WEAK_KEY;
- return -EINVAL;
+ err = des_expand_key(dctx, key, keylen);
+ if (err == -ENOKEY) {
+ if (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)
+ err = -EINVAL;
+ else
+ err = 0;
}
- /* Copy to output */
- memcpy(dctx->expkey, tmp, sizeof(dctx->expkey));
-
- return 0;
+ if (err) {
+ memset(dctx, 0, sizeof(*dctx));
+ crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_WEAK_KEY);
+ }
+ return err;
}
-static void des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void crypto_des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- struct des_ctx *ctx = crypto_tfm_ctx(tfm);
- const u32 *K = ctx->expkey;
- const __le32 *s = (const __le32 *)src;
- __le32 *d = (__le32 *)dst;
- u32 L, R, A, B;
- int i;
-
- L = le32_to_cpu(s[0]);
- R = le32_to_cpu(s[1]);
-
- IP(L, R, A);
- for (i = 0; i < 8; i++) {
- ROUND(L, R, A, B, K, 2);
- ROUND(R, L, A, B, K, 2);
- }
- FP(R, L, A);
+ const struct des_ctx *dctx = crypto_tfm_ctx(tfm);
- d[0] = cpu_to_le32(R);
- d[1] = cpu_to_le32(L);
+ des_encrypt(dctx, dst, src);
}
-static void des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void crypto_des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- struct des_ctx *ctx = crypto_tfm_ctx(tfm);
- const u32 *K = ctx->expkey + DES_EXPKEY_WORDS - 2;
- const __le32 *s = (const __le32 *)src;
- __le32 *d = (__le32 *)dst;
- u32 L, R, A, B;
- int i;
-
- L = le32_to_cpu(s[0]);
- R = le32_to_cpu(s[1]);
+ const struct des_ctx *dctx = crypto_tfm_ctx(tfm);
- IP(L, R, A);
- for (i = 0; i < 8; i++) {
- ROUND(L, R, A, B, K, -2);
- ROUND(R, L, A, B, K, -2);
- }
- FP(R, L, A);
-
- d[0] = cpu_to_le32(R);
- d[1] = cpu_to_le32(L);
+ des_decrypt(dctx, dst, src);
}
int __des3_ede_setkey(u32 *expkey, u32 *flags, const u8 *key,
@@ -858,76 +68,37 @@ static int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen)
{
struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
- u32 *expkey = dctx->expkey;
int err;
- err = crypto_des3_ede_verify_key(tfm, key);
- if (err)
- return err;
+ err = des3_ede_expand_key(dctx, key, keylen);
+ if (err == -ENOKEY) {
+ if (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)
+ err = -EINVAL;
+ else
+ err = 0;
+ }
- return __des3_ede_setkey(expkey, flags, key, keylen);
+ if (err) {
+ memset(dctx, 0, sizeof(*dctx));
+ crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_WEAK_KEY);
+ }
+ return err;
}
-static void des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void crypto_des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst,
+ const u8 *src)
{
- struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
- const u32 *K = dctx->expkey;
- const __le32 *s = (const __le32 *)src;
- __le32 *d = (__le32 *)dst;
- u32 L, R, A, B;
- int i;
-
- L = le32_to_cpu(s[0]);
- R = le32_to_cpu(s[1]);
+ const struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
- IP(L, R, A);
- for (i = 0; i < 8; i++) {
- ROUND(L, R, A, B, K, 2);
- ROUND(R, L, A, B, K, 2);
- }
- for (i = 0; i < 8; i++) {
- ROUND(R, L, A, B, K, 2);
- ROUND(L, R, A, B, K, 2);
- }
- for (i = 0; i < 8; i++) {
- ROUND(L, R, A, B, K, 2);
- ROUND(R, L, A, B, K, 2);
- }
- FP(R, L, A);
-
- d[0] = cpu_to_le32(R);
- d[1] = cpu_to_le32(L);
+ des3_ede_encrypt(dctx, dst, src);
}
-static void des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void crypto_des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst,
+ const u8 *src)
{
- struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
- const u32 *K = dctx->expkey + DES3_EDE_EXPKEY_WORDS - 2;
- const __le32 *s = (const __le32 *)src;
- __le32 *d = (__le32 *)dst;
- u32 L, R, A, B;
- int i;
-
- L = le32_to_cpu(s[0]);
- R = le32_to_cpu(s[1]);
-
- IP(L, R, A);
- for (i = 0; i < 8; i++) {
- ROUND(L, R, A, B, K, -2);
- ROUND(R, L, A, B, K, -2);
- }
- for (i = 0; i < 8; i++) {
- ROUND(R, L, A, B, K, -2);
- ROUND(L, R, A, B, K, -2);
- }
- for (i = 0; i < 8; i++) {
- ROUND(L, R, A, B, K, -2);
- ROUND(R, L, A, B, K, -2);
- }
- FP(R, L, A);
+ const struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
- d[0] = cpu_to_le32(R);
- d[1] = cpu_to_le32(L);
+ des3_ede_decrypt(dctx, dst, src);
}
static struct crypto_alg des_algs[2] = { {
@@ -938,13 +109,12 @@ static struct crypto_alg des_algs[2] = { {
.cra_blocksize = DES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct des_ctx),
.cra_module = THIS_MODULE,
- .cra_alignmask = 3,
.cra_u = { .cipher = {
.cia_min_keysize = DES_KEY_SIZE,
.cia_max_keysize = DES_KEY_SIZE,
.cia_setkey = des_setkey,
- .cia_encrypt = des_encrypt,
- .cia_decrypt = des_decrypt } }
+ .cia_encrypt = crypto_des_encrypt,
+ .cia_decrypt = crypto_des_decrypt } }
}, {
.cra_name = "des3_ede",
.cra_driver_name = "des3_ede-generic",
@@ -953,13 +123,12 @@ static struct crypto_alg des_algs[2] = { {
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct des3_ede_ctx),
.cra_module = THIS_MODULE,
- .cra_alignmask = 3,
.cra_u = { .cipher = {
.cia_min_keysize = DES3_EDE_KEY_SIZE,
.cia_max_keysize = DES3_EDE_KEY_SIZE,
.cia_setkey = des3_ede_setkey,
- .cia_encrypt = des3_ede_encrypt,
- .cia_decrypt = des3_ede_decrypt } }
+ .cia_encrypt = crypto_des3_ede_encrypt,
+ .cia_decrypt = crypto_des3_ede_decrypt } }
} };
static int __init des_generic_mod_init(void)

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