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-rw-r--r--arch/x86/crypto/Makefile2
-rw-r--r--arch/x86/crypto/serpent-sse2-i586-asm_32.S638
-rw-r--r--arch/x86/include/asm/serpent.h31
-rw-r--r--crypto/Kconfig17
4 files changed, 688 insertions, 0 deletions
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 12ebdbd..2b0b963 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -5,6 +5,7 @@
obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o
obj-$(CONFIG_CRYPTO_SALSA20_586) += salsa20-i586.o
+obj-$(CONFIG_CRYPTO_SERPENT_SSE2_586) += serpent-sse2-i586.o
obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
obj-$(CONFIG_CRYPTO_BLOWFISH_X86_64) += blowfish-x86_64.o
@@ -21,6 +22,7 @@ obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o
aes-i586-y := aes-i586-asm_32.o aes_glue.o
twofish-i586-y := twofish-i586-asm_32.o twofish_glue.o
salsa20-i586-y := salsa20-i586-asm_32.o salsa20_glue.o
+serpent-sse2-i586-y := serpent-sse2-i586-asm_32.o serpent_sse2_glue.o
aes-x86_64-y := aes-x86_64-asm_64.o aes_glue.o
blowfish-x86_64-y := blowfish-x86_64-asm_64.o blowfish_glue.o
diff --git a/arch/x86/crypto/serpent-sse2-i586-asm_32.S b/arch/x86/crypto/serpent-sse2-i586-asm_32.S
new file mode 100644
index 0000000..4e37677
--- /dev/null
+++ b/arch/x86/crypto/serpent-sse2-i586-asm_32.S
@@ -0,0 +1,638 @@
+/*
+ * Serpent Cipher 4-way parallel algorithm (i586/SSE2)
+ *
+ * Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * Based on crypto/serpent.c by
+ * Copyright (C) 2002 Dag Arne Osvik <osvik@ii.uib.no>
+ * 2003 Herbert Valerio Riedel <hvr@gnu.org>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ */
+
+.file "serpent-sse2-i586-asm_32.S"
+.text
+
+#define arg_ctx 4
+#define arg_dst 8
+#define arg_src 12
+#define arg_xor 16
+
+/**********************************************************************
+ 4-way SSE2 serpent
+ **********************************************************************/
+#define CTX %edx
+
+#define RA %xmm0
+#define RB %xmm1
+#define RC %xmm2
+#define RD %xmm3
+#define RE %xmm4
+
+#define RT0 %xmm5
+#define RT1 %xmm6
+
+#define RNOT %xmm7
+
+#define get_key(i, j, t) \
+ movd (4*(i)+(j))*4(CTX), t; \
+ pshufd $0, t, t;
+
+#define K(x0, x1, x2, x3, x4, i) \
+ get_key(i, 0, x4); \
+ get_key(i, 1, RT0); \
+ get_key(i, 2, RT1); \
+ pxor x4, x0; \
+ pxor RT0, x1; \
+ pxor RT1, x2; \
+ get_key(i, 3, x4); \
+ pxor x4, x3;
+
+#define LK(x0, x1, x2, x3, x4, i) \
+ movdqa x0, x4; \
+ pslld $13, x0; \
+ psrld $(32 - 13), x4; \
+ por x4, x0; \
+ pxor x0, x1; \
+ movdqa x2, x4; \
+ pslld $3, x2; \
+ psrld $(32 - 3), x4; \
+ por x4, x2; \
+ pxor x2, x1; \
+ movdqa x1, x4; \
+ pslld $1, x1; \
+ psrld $(32 - 1), x4; \
+ por x4, x1; \
+ movdqa x0, x4; \
+ pslld $3, x4; \
+ pxor x2, x3; \
+ pxor x4, x3; \
+ movdqa x3, x4; \
+ pslld $7, x3; \
+ psrld $(32 - 7), x4; \
+ por x4, x3; \
+ movdqa x1, x4; \
+ pslld $7, x4; \
+ pxor x1, x0; \
+ pxor x3, x0; \
+ pxor x3, x2; \
+ pxor x4, x2; \
+ movdqa x0, x4; \
+ get_key(i, 1, RT0); \
+ pxor RT0, x1; \
+ get_key(i, 3, RT0); \
+ pxor RT0, x3; \
+ pslld $5, x0; \
+ psrld $(32 - 5), x4; \
+ por x4, x0; \
+ movdqa x2, x4; \
+ pslld $22, x2; \
+ psrld $(32 - 22), x4; \
+ por x4, x2; \
+ get_key(i, 0, RT0); \
+ pxor RT0, x0; \
+ get_key(i, 2, RT0); \
+ pxor RT0, x2;
+
+#define KL(x0, x1, x2, x3, x4, i) \
+ K(x0, x1, x2, x3, x4, i); \
+ movdqa x0, x4; \
+ psrld $5, x0; \
+ pslld $(32 - 5), x4; \
+ por x4, x0; \
+ movdqa x2, x4; \
+ psrld $22, x2; \
+ pslld $(32 - 22), x4; \
+ por x4, x2; \
+ pxor x3, x2; \
+ pxor x3, x0; \
+ movdqa x1, x4; \
+ pslld $7, x4; \
+ pxor x1, x0; \
+ pxor x4, x2; \
+ movdqa x1, x4; \
+ psrld $1, x1; \
+ pslld $(32 - 1), x4; \
+ por x4, x1; \
+ movdqa x3, x4; \
+ psrld $7, x3; \
+ pslld $(32 - 7), x4; \
+ por x4, x3; \
+ pxor x0, x1; \
+ movdqa x0, x4; \
+ pslld $3, x4; \
+ pxor x4, x3; \
+ movdqa x0, x4; \
+ psrld $13, x0; \
+ pslld $(32 - 13), x4; \
+ por x4, x0; \
+ pxor x2, x1; \
+ pxor x2, x3; \
+ movdqa x2, x4; \
+ psrld $3, x2; \
+ pslld $(32 - 3), x4; \
+ por x4, x2;
+
+#define S0(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ por x0, x3; \
+ pxor x4, x0; \
+ pxor x2, x4; \
+ pxor RNOT, x4; \
+ pxor x1, x3; \
+ pand x0, x1; \
+ pxor x4, x1; \
+ pxor x0, x2; \
+ pxor x3, x0; \
+ por x0, x4; \
+ pxor x2, x0; \
+ pand x1, x2; \
+ pxor x2, x3; \
+ pxor RNOT, x1; \
+ pxor x4, x2; \
+ pxor x2, x1;
+
+#define S1(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ pxor x0, x1; \
+ pxor x3, x0; \
+ pxor RNOT, x3; \
+ pand x1, x4; \
+ por x1, x0; \
+ pxor x2, x3; \
+ pxor x3, x0; \
+ pxor x3, x1; \
+ pxor x4, x3; \
+ por x4, x1; \
+ pxor x2, x4; \
+ pand x0, x2; \
+ pxor x1, x2; \
+ por x0, x1; \
+ pxor RNOT, x0; \
+ pxor x2, x0; \
+ pxor x1, x4;
+
+#define S2(x0, x1, x2, x3, x4) \
+ pxor RNOT, x3; \
+ pxor x0, x1; \
+ movdqa x0, x4; \
+ pand x2, x0; \
+ pxor x3, x0; \
+ por x4, x3; \
+ pxor x1, x2; \
+ pxor x1, x3; \
+ pand x0, x1; \
+ pxor x2, x0; \
+ pand x3, x2; \
+ por x1, x3; \
+ pxor RNOT, x0; \
+ pxor x0, x3; \
+ pxor x0, x4; \
+ pxor x2, x0; \
+ por x2, x1;
+
+#define S3(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ pxor x3, x1; \
+ por x0, x3; \
+ pand x0, x4; \
+ pxor x2, x0; \
+ pxor x1, x2; \
+ pand x3, x1; \
+ pxor x3, x2; \
+ por x4, x0; \
+ pxor x3, x4; \
+ pxor x0, x1; \
+ pand x3, x0; \
+ pand x4, x3; \
+ pxor x2, x3; \
+ por x1, x4; \
+ pand x1, x2; \
+ pxor x3, x4; \
+ pxor x3, x0; \
+ pxor x2, x3;
+
+#define S4(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ pand x0, x3; \
+ pxor x4, x0; \
+ pxor x2, x3; \
+ por x4, x2; \
+ pxor x1, x0; \
+ pxor x3, x4; \
+ por x0, x2; \
+ pxor x1, x2; \
+ pand x0, x1; \
+ pxor x4, x1; \
+ pand x2, x4; \
+ pxor x3, x2; \
+ pxor x0, x4; \
+ por x1, x3; \
+ pxor RNOT, x1; \
+ pxor x0, x3;
+
+#define S5(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ por x0, x1; \
+ pxor x1, x2; \
+ pxor RNOT, x3; \
+ pxor x0, x4; \
+ pxor x2, x0; \
+ pand x4, x1; \
+ por x3, x4; \
+ pxor x0, x4; \
+ pand x3, x0; \
+ pxor x3, x1; \
+ pxor x2, x3; \
+ pxor x1, x0; \
+ pand x4, x2; \
+ pxor x2, x1; \
+ pand x0, x2; \
+ pxor x2, x3;
+
+#define S6(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ pxor x0, x3; \
+ pxor x2, x1; \
+ pxor x0, x2; \
+ pand x3, x0; \
+ por x3, x1; \
+ pxor RNOT, x4; \
+ pxor x1, x0; \
+ pxor x2, x1; \
+ pxor x4, x3; \
+ pxor x0, x4; \
+ pand x0, x2; \
+ pxor x1, x4; \
+ pxor x3, x2; \
+ pand x1, x3; \
+ pxor x0, x3; \
+ pxor x2, x1;
+
+#define S7(x0, x1, x2, x3, x4) \
+ pxor RNOT, x1; \
+ movdqa x1, x4; \
+ pxor RNOT, x0; \
+ pand x2, x1; \
+ pxor x3, x1; \
+ por x4, x3; \
+ pxor x2, x4; \
+ pxor x3, x2; \
+ pxor x0, x3; \
+ por x1, x0; \
+ pand x0, x2; \
+ pxor x4, x0; \
+ pxor x3, x4; \
+ pand x0, x3; \
+ pxor x1, x4; \
+ pxor x4, x2; \
+ pxor x1, x3; \
+ por x0, x4; \
+ pxor x1, x4;
+
+#define SI0(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ pxor x0, x1; \
+ por x1, x3; \
+ pxor x1, x4; \
+ pxor RNOT, x0; \
+ pxor x3, x2; \
+ pxor x0, x3; \
+ pand x1, x0; \
+ pxor x2, x0; \
+ pand x3, x2; \
+ pxor x4, x3; \
+ pxor x3, x2; \
+ pxor x3, x1; \
+ pand x0, x3; \
+ pxor x0, x1; \
+ pxor x2, x0; \
+ pxor x3, x4;
+
+#define SI1(x0, x1, x2, x3, x4) \
+ pxor x3, x1; \
+ movdqa x0, x4; \
+ pxor x2, x0; \
+ pxor RNOT, x2; \
+ por x1, x4; \
+ pxor x3, x4; \
+ pand x1, x3; \
+ pxor x2, x1; \
+ pand x4, x2; \
+ pxor x1, x4; \
+ por x3, x1; \
+ pxor x0, x3; \
+ pxor x0, x2; \
+ por x4, x0; \
+ pxor x4, x2; \
+ pxor x0, x1; \
+ pxor x1, x4;
+
+#define SI2(x0, x1, x2, x3, x4) \
+ pxor x1, x2; \
+ movdqa x3, x4; \
+ pxor RNOT, x3; \
+ por x2, x3; \
+ pxor x4, x2; \
+ pxor x0, x4; \
+ pxor x1, x3; \
+ por x2, x1; \
+ pxor x0, x2; \
+ pxor x4, x1; \
+ por x3, x4; \
+ pxor x3, x2; \
+ pxor x2, x4; \
+ pand x1, x2; \
+ pxor x3, x2; \
+ pxor x4, x3; \
+ pxor x0, x4;
+
+#define SI3(x0, x1, x2, x3, x4) \
+ pxor x1, x2; \
+ movdqa x1, x4; \
+ pand x2, x1; \
+ pxor x0, x1; \
+ por x4, x0; \
+ pxor x3, x4; \
+ pxor x3, x0; \
+ por x1, x3; \
+ pxor x2, x1; \
+ pxor x3, x1; \
+ pxor x2, x0; \
+ pxor x3, x2; \
+ pand x1, x3; \
+ pxor x0, x1; \
+ pand x2, x0; \
+ pxor x3, x4; \
+ pxor x0, x3; \
+ pxor x1, x0;
+
+#define SI4(x0, x1, x2, x3, x4) \
+ pxor x3, x2; \
+ movdqa x0, x4; \
+ pand x1, x0; \
+ pxor x2, x0; \
+ por x3, x2; \
+ pxor RNOT, x4; \
+ pxor x0, x1; \
+ pxor x2, x0; \
+ pand x4, x2; \
+ pxor x0, x2; \
+ por x4, x0; \
+ pxor x3, x0; \
+ pand x2, x3; \
+ pxor x3, x4; \
+ pxor x1, x3; \
+ pand x0, x1; \
+ pxor x1, x4; \
+ pxor x3, x0;
+
+#define SI5(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ por x2, x1; \
+ pxor x4, x2; \
+ pxor x3, x1; \
+ pand x4, x3; \
+ pxor x3, x2; \
+ por x0, x3; \
+ pxor RNOT, x0; \
+ pxor x2, x3; \
+ por x0, x2; \
+ pxor x1, x4; \
+ pxor x4, x2; \
+ pand x0, x4; \
+ pxor x1, x0; \
+ pxor x3, x1; \
+ pand x2, x0; \
+ pxor x3, x2; \
+ pxor x2, x0; \
+ pxor x4, x2; \
+ pxor x3, x4;
+
+#define SI6(x0, x1, x2, x3, x4) \
+ pxor x2, x0; \
+ movdqa x0, x4; \
+ pand x3, x0; \
+ pxor x3, x2; \
+ pxor x2, x0; \
+ pxor x1, x3; \
+ por x4, x2; \
+ pxor x3, x2; \
+ pand x0, x3; \
+ pxor RNOT, x0; \
+ pxor x1, x3; \
+ pand x2, x1; \
+ pxor x0, x4; \
+ pxor x4, x3; \
+ pxor x2, x4; \
+ pxor x1, x0; \
+ pxor x0, x2;
+
+#define SI7(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ pand x0, x3; \
+ pxor x2, x0; \
+ por x4, x2; \
+ pxor x1, x4; \
+ pxor RNOT, x0; \
+ por x3, x1; \
+ pxor x0, x4; \
+ pand x2, x0; \
+ pxor x1, x0; \
+ pand x2, x1; \
+ pxor x2, x3; \
+ pxor x3, x4; \
+ pand x3, x2; \
+ por x0, x3; \
+ pxor x4, x1; \
+ pxor x4, x3; \
+ pand x0, x4; \
+ pxor x2, x4;
+
+#define transpose_4x4(x0, x1, x2, x3, t1, t2, t3) \
+ movdqa x2, t3; \
+ movdqa x0, t1; \
+ unpcklps x3, t3; \
+ movdqa x0, t2; \
+ unpcklps x1, t1; \
+ unpckhps x1, t2; \
+ movdqa t3, x1; \
+ unpckhps x3, x2; \
+ movdqa t1, x0; \
+ movhlps t1, x1; \
+ movdqa t2, t1; \
+ movlhps t3, x0; \
+ movlhps x2, t1; \
+ movhlps t2, x2; \
+ movdqa x2, x3; \
+ movdqa t1, x2;
+
+#define read_blocks(in, x0, x1, x2, x3, t0, t1, t2) \
+ movdqu (0*4*4)(in), x0; \
+ movdqu (1*4*4)(in), x1; \
+ movdqu (2*4*4)(in), x2; \
+ movdqu (3*4*4)(in), x3; \
+ \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
+
+#define write_blocks(out, x0, x1, x2, x3, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ \
+ movdqu x0, (0*4*4)(out); \
+ movdqu x1, (1*4*4)(out); \
+ movdqu x2, (2*4*4)(out); \
+ movdqu x3, (3*4*4)(out);
+
+#define xor_blocks(out, x0, x1, x2, x3, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ \
+ movdqu (0*4*4)(out), t0; \
+ pxor t0, x0; \
+ movdqu x0, (0*4*4)(out); \
+ movdqu (1*4*4)(out), t0; \
+ pxor t0, x1; \
+ movdqu x1, (1*4*4)(out); \
+ movdqu (2*4*4)(out), t0; \
+ pxor t0, x2; \
+ movdqu x2, (2*4*4)(out); \
+ movdqu (3*4*4)(out), t0; \
+ pxor t0, x3; \
+ movdqu x3, (3*4*4)(out);
+
+.align 8
+.global __serpent_enc_blk_4way
+.type __serpent_enc_blk_4way,@function;
+
+__serpent_enc_blk_4way:
+ /* input:
+ * arg_ctx(%esp): ctx, CTX
+ * arg_dst(%esp): dst
+ * arg_src(%esp): src
+ * arg_xor(%esp): bool, if true: xor output
+ */
+
+ pcmpeqd RNOT, RNOT;
+
+ movl arg_ctx(%esp), CTX;
+
+ movl arg_src(%esp), %eax;
+ read_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
+
+ K(RA, RB, RC, RD, RE, 0);
+ S0(RA, RB, RC, RD, RE); LK(RC, RB, RD, RA, RE, 1);
+ S1(RC, RB, RD, RA, RE); LK(RE, RD, RA, RC, RB, 2);
+ S2(RE, RD, RA, RC, RB); LK(RB, RD, RE, RC, RA, 3);
+ S3(RB, RD, RE, RC, RA); LK(RC, RA, RD, RB, RE, 4);
+ S4(RC, RA, RD, RB, RE); LK(RA, RD, RB, RE, RC, 5);
+ S5(RA, RD, RB, RE, RC); LK(RC, RA, RD, RE, RB, 6);
+ S6(RC, RA, RD, RE, RB); LK(RD, RB, RA, RE, RC, 7);
+ S7(RD, RB, RA, RE, RC); LK(RC, RA, RE, RD, RB, 8);
+ S0(RC, RA, RE, RD, RB); LK(RE, RA, RD, RC, RB, 9);
+ S1(RE, RA, RD, RC, RB); LK(RB, RD, RC, RE, RA, 10);
+ S2(RB, RD, RC, RE, RA); LK(RA, RD, RB, RE, RC, 11);
+ S3(RA, RD, RB, RE, RC); LK(RE, RC, RD, RA, RB, 12);
+ S4(RE, RC, RD, RA, RB); LK(RC, RD, RA, RB, RE, 13);
+ S5(RC, RD, RA, RB, RE); LK(RE, RC, RD, RB, RA, 14);
+ S6(RE, RC, RD, RB, RA); LK(RD, RA, RC, RB, RE, 15);
+ S7(RD, RA, RC, RB, RE); LK(RE, RC, RB, RD, RA, 16);
+ S0(RE, RC, RB, RD, RA); LK(RB, RC, RD, RE, RA, 17);
+ S1(RB, RC, RD, RE, RA); LK(RA, RD, RE, RB, RC, 18);
+ S2(RA, RD, RE, RB, RC); LK(RC, RD, RA, RB, RE, 19);
+ S3(RC, RD, RA, RB, RE); LK(RB, RE, RD, RC, RA, 20);
+ S4(RB, RE, RD, RC, RA); LK(RE, RD, RC, RA, RB, 21);
+ S5(RE, RD, RC, RA, RB); LK(RB, RE, RD, RA, RC, 22);
+ S6(RB, RE, RD, RA, RC); LK(RD, RC, RE, RA, RB, 23);
+ S7(RD, RC, RE, RA, RB); LK(RB, RE, RA, RD, RC, 24);
+ S0(RB, RE, RA, RD, RC); LK(RA, RE, RD, RB, RC, 25);
+ S1(RA, RE, RD, RB, RC); LK(RC, RD, RB, RA, RE, 26);
+ S2(RC, RD, RB, RA, RE); LK(RE, RD, RC, RA, RB, 27);
+ S3(RE, RD, RC, RA, RB); LK(RA, RB, RD, RE, RC, 28);
+ S4(RA, RB, RD, RE, RC); LK(RB, RD, RE, RC, RA, 29);
+ S5(RB, RD, RE, RC, RA); LK(RA, RB, RD, RC, RE, 30);
+ S6(RA, RB, RD, RC, RE); LK(RD, RE, RB, RC, RA, 31);
+ S7(RD, RE, RB, RC, RA); K(RA, RB, RC, RD, RE, 32);
+
+ movl arg_dst(%esp), %eax;
+
+ cmpb $0, arg_xor(%esp);
+ jnz __enc_xor4;
+
+ write_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
+
+ ret;
+
+__enc_xor4:
+ xor_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
+
+ ret;
+
+.align 8
+.global serpent_dec_blk_4way
+.type serpent_dec_blk_4way,@function;
+
+serpent_dec_blk_4way:
+ /* input:
+ * arg_ctx(%esp): ctx, CTX
+ * arg_dst(%esp): dst
+ * arg_src(%esp): src
+ */
+
+ pcmpeqd RNOT, RNOT;
+
+ movl arg_ctx(%esp), CTX;
+
+ movl arg_src(%esp), %eax;
+ read_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
+
+ K(RA, RB, RC, RD, RE, 32);
+ SI7(RA, RB, RC, RD, RE); KL(RB, RD, RA, RE, RC, 31);
+ SI6(RB, RD, RA, RE, RC); KL(RA, RC, RE, RB, RD, 30);
+ SI5(RA, RC, RE, RB, RD); KL(RC, RD, RA, RE, RB, 29);
+ SI4(RC, RD, RA, RE, RB); KL(RC, RA, RB, RE, RD, 28);
+ SI3(RC, RA, RB, RE, RD); KL(RB, RC, RD, RE, RA, 27);
+ SI2(RB, RC, RD, RE, RA); KL(RC, RA, RE, RD, RB, 26);
+ SI1(RC, RA, RE, RD, RB); KL(RB, RA, RE, RD, RC, 25);
+ SI0(RB, RA, RE, RD, RC); KL(RE, RC, RA, RB, RD, 24);
+ SI7(RE, RC, RA, RB, RD); KL(RC, RB, RE, RD, RA, 23);
+ SI6(RC, RB, RE, RD, RA); KL(RE, RA, RD, RC, RB, 22);
+ SI5(RE, RA, RD, RC, RB); KL(RA, RB, RE, RD, RC, 21);
+ SI4(RA, RB, RE, RD, RC); KL(RA, RE, RC, RD, RB, 20);
+ SI3(RA, RE, RC, RD, RB); KL(RC, RA, RB, RD, RE, 19);
+ SI2(RC, RA, RB, RD, RE); KL(RA, RE, RD, RB, RC, 18);
+ SI1(RA, RE, RD, RB, RC); KL(RC, RE, RD, RB, RA, 17);
+ SI0(RC, RE, RD, RB, RA); KL(RD, RA, RE, RC, RB, 16);
+ SI7(RD, RA, RE, RC, RB); KL(RA, RC, RD, RB, RE, 15);
+ SI6(RA, RC, RD, RB, RE); KL(RD, RE, RB, RA, RC, 14);
+ SI5(RD, RE, RB, RA, RC); KL(RE, RC, RD, RB, RA, 13);
+ SI4(RE, RC, RD, RB, RA); KL(RE, RD, RA, RB, RC, 12);
+ SI3(RE, RD, RA, RB, RC); KL(RA, RE, RC, RB, RD, 11);
+ SI2(RA, RE, RC, RB, RD); KL(RE, RD, RB, RC, RA, 10);
+ SI1(RE, RD, RB, RC, RA); KL(RA, RD, RB, RC, RE, 9);
+ SI0(RA, RD, RB, RC, RE); KL(RB, RE, RD, RA, RC, 8);
+ SI7(RB, RE, RD, RA, RC); KL(RE, RA, RB, RC, RD, 7);
+ SI6(RE, RA, RB, RC, RD); KL(RB, RD, RC, RE, RA, 6);
+ SI5(RB, RD, RC, RE, RA); KL(RD, RA, RB, RC, RE, 5);
+ SI4(RD, RA, RB, RC, RE); KL(RD, RB, RE, RC, RA, 4);
+ SI3(RD, RB, RE, RC, RA); KL(RE, RD, RA, RC, RB, 3);
+ SI2(RE, RD, RA, RC, RB); KL(RD, RB, RC, RA, RE, 2);
+ SI1(RD, RB, RC, RA, RE); KL(RE, RB, RC, RA, RD, 1);
+ SI0(RE, RB, RC, RA, RD); K(RC, RD, RB, RE, RA, 0);
+
+ movl arg_dst(%esp), %eax;
+ write_blocks(%eax, RC, RD, RB, RE, RT0, RT1, RA);
+
+ ret;
diff --git a/arch/x86/include/asm/serpent.h b/arch/x86/include/asm/serpent.h
index b7fd3b5..d3ef63f 100644
--- a/arch/x86/include/asm/serpent.h
+++ b/arch/x86/include/asm/serpent.h
@@ -4,6 +4,35 @@
#include <linux/crypto.h>
#include <crypto/serpent.h>
+#ifdef CONFIG_X86_32
+
+#define SERPENT_PARALLEL_BLOCKS 4
+
+asmlinkage void __serpent_enc_blk_4way(struct serpent_ctx *ctx, u8 *dst,
+ const u8 *src, bool xor);
+asmlinkage void serpent_dec_blk_4way(struct serpent_ctx *ctx, u8 *dst,
+ const u8 *src);
+
+static inline void serpent_enc_blk_xway(struct serpent_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ __serpent_enc_blk_4way(ctx, dst, src, false);
+}
+
+static inline void serpent_enc_blk_xway_xor(struct serpent_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ __serpent_enc_blk_4way(ctx, dst, src, true);
+}
+
+static inline void serpent_dec_blk_xway(struct serpent_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ serpent_dec_blk_4way(ctx, dst, src);
+}
+
+#else
+
#define SERPENT_PARALLEL_BLOCKS 8
asmlinkage void __serpent_enc_blk_8way(struct serpent_ctx *ctx, u8 *dst,
@@ -30,3 +59,5 @@ static inline void serpent_dec_blk_xway(struct serpent_ctx *ctx, u8 *dst,
}
#endif
+
+#endif
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 2df61e4..16e0c13 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -783,6 +783,23 @@ config CRYPTO_SERPENT_SSE2_X86_64
See also:
<http://www.cl.cam.ac.uk/~rja14/serpent.html>
+config CRYPTO_SERPENT_SSE2_586
+ tristate "Serpent cipher algorithm (i586/SSE2)"
+ depends on X86 && !64BIT
+ select CRYPTO_ALGAPI
+ select CRYPTO_SERPENT
+ help
+ Serpent cipher algorithm, by Anderson, Biham & Knudsen.
+
+ Keys are allowed to be from 0 to 256 bits in length, in steps
+ of 8 bits.
+
+ This module provides Serpent cipher algorithm that processes four
+ blocks parallel using SSE2 instruction set.
+
+ See also:
+ <http://www.cl.cam.ac.uk/~rja14/serpent.html>
+
config CRYPTO_TEA
tristate "TEA, XTEA and XETA cipher algorithms"
select CRYPTO_ALGAPI