/*
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/*
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* Cryptographic API.
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* Cryptographic API.
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*
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*
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* Serpent Cipher Algorithm.
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* Serpent Cipher Algorithm.
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*
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*
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* Copyright (C) 2002 Dag Arne Osvik <osvik@ii.uib.no>
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* Copyright (C) 2002 Dag Arne Osvik <osvik@ii.uib.no>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* (at your option) any later version.
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*/
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*/
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#include <linux/init.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/errno.h>
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#include <asm/byteorder.h>
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#include <asm/byteorder.h>
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#include <linux/crypto.h>
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#include <linux/crypto.h>
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/* Key is padded to the maximum of 256 bits before round key generation.
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/* Key is padded to the maximum of 256 bits before round key generation.
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* Any key length <= 256 bits (32 bytes) is allowed by the algorithm.
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* Any key length <= 256 bits (32 bytes) is allowed by the algorithm.
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*/
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*/
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#define SERPENT_MIN_KEY_SIZE 0
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#define SERPENT_MIN_KEY_SIZE 0
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#define SERPENT_MAX_KEY_SIZE 32
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#define SERPENT_MAX_KEY_SIZE 32
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#define SERPENT_EXPKEY_WORDS 132
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#define SERPENT_EXPKEY_WORDS 132
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#define SERPENT_BLOCK_SIZE 16
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#define SERPENT_BLOCK_SIZE 16
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#define PHI 0x9e3779b9UL
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#define PHI 0x9e3779b9UL
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#define ROL(x,r) ((x) = ((x) << (r)) | ((x) >> (32-(r))))
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#define ROL(x,r) ((x) = ((x) << (r)) | ((x) >> (32-(r))))
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#define ROR(x,r) ((x) = ((x) >> (r)) | ((x) << (32-(r))))
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#define ROR(x,r) ((x) = ((x) >> (r)) | ((x) << (32-(r))))
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#define keyiter(a,b,c,d,i,j) \
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#define keyiter(a,b,c,d,i,j) \
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b ^= d; b ^= c; b ^= a; b ^= PHI ^ i; ROL(b,11); k[j] = b;
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b ^= d; b ^= c; b ^= a; b ^= PHI ^ i; ROL(b,11); k[j] = b;
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#define loadkeys(x0,x1,x2,x3,i) \
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#define loadkeys(x0,x1,x2,x3,i) \
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x0=k[i]; x1=k[i+1]; x2=k[i+2]; x3=k[i+3];
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x0=k[i]; x1=k[i+1]; x2=k[i+2]; x3=k[i+3];
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#define storekeys(x0,x1,x2,x3,i) \
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#define storekeys(x0,x1,x2,x3,i) \
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k[i]=x0; k[i+1]=x1; k[i+2]=x2; k[i+3]=x3;
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k[i]=x0; k[i+1]=x1; k[i+2]=x2; k[i+3]=x3;
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#define K(x0,x1,x2,x3,i) \
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#define K(x0,x1,x2,x3,i) \
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x3 ^= k[4*(i)+3]; x2 ^= k[4*(i)+2]; \
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x3 ^= k[4*(i)+3]; x2 ^= k[4*(i)+2]; \
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x1 ^= k[4*(i)+1]; x0 ^= k[4*(i)+0];
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x1 ^= k[4*(i)+1]; x0 ^= k[4*(i)+0];
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#define LK(x0,x1,x2,x3,x4,i) \
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#define LK(x0,x1,x2,x3,x4,i) \
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ROL(x0,13); \
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ROL(x0,13); \
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ROL(x2,3); x1 ^= x0; x4 = x0 << 3; \
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ROL(x2,3); x1 ^= x0; x4 = x0 << 3; \
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x3 ^= x2; x1 ^= x2; \
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x3 ^= x2; x1 ^= x2; \
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ROL(x1,1); x3 ^= x4; \
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ROL(x1,1); x3 ^= x4; \
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ROL(x3,7); x4 = x1; \
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ROL(x3,7); x4 = x1; \
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x0 ^= x1; x4 <<= 7; x2 ^= x3; \
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x0 ^= x1; x4 <<= 7; x2 ^= x3; \
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x0 ^= x3; x2 ^= x4; x3 ^= k[4*i+3]; \
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x0 ^= x3; x2 ^= x4; x3 ^= k[4*i+3]; \
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x1 ^= k[4*i+1]; ROL(x0,5); ROL(x2,22); \
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x1 ^= k[4*i+1]; ROL(x0,5); ROL(x2,22); \
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x0 ^= k[4*i+0]; x2 ^= k[4*i+2];
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x0 ^= k[4*i+0]; x2 ^= k[4*i+2];
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#define KL(x0,x1,x2,x3,x4,i) \
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#define KL(x0,x1,x2,x3,x4,i) \
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x0 ^= k[4*i+0]; x1 ^= k[4*i+1]; x2 ^= k[4*i+2]; \
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x0 ^= k[4*i+0]; x1 ^= k[4*i+1]; x2 ^= k[4*i+2]; \
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x3 ^= k[4*i+3]; ROR(x0,5); ROR(x2,22); \
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x3 ^= k[4*i+3]; ROR(x0,5); ROR(x2,22); \
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x4 = x1; x2 ^= x3; x0 ^= x3; \
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x4 = x1; x2 ^= x3; x0 ^= x3; \
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x4 <<= 7; x0 ^= x1; ROR(x1,1); \
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x4 <<= 7; x0 ^= x1; ROR(x1,1); \
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x2 ^= x4; ROR(x3,7); x4 = x0 << 3; \
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x2 ^= x4; ROR(x3,7); x4 = x0 << 3; \
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x1 ^= x0; x3 ^= x4; ROR(x0,13); \
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x1 ^= x0; x3 ^= x4; ROR(x0,13); \
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x1 ^= x2; x3 ^= x2; ROR(x2,3);
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x1 ^= x2; x3 ^= x2; ROR(x2,3);
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#define S0(x0,x1,x2,x3,x4) \
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#define S0(x0,x1,x2,x3,x4) \
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x4 = x3; \
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x4 = x3; \
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x3 |= x0; x0 ^= x4; x4 ^= x2; \
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x3 |= x0; x0 ^= x4; x4 ^= x2; \
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x4 =~ x4; x3 ^= x1; x1 &= x0; \
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x4 =~ x4; x3 ^= x1; x1 &= x0; \
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x1 ^= x4; x2 ^= x0; x0 ^= x3; \
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x1 ^= x4; x2 ^= x0; x0 ^= x3; \
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x4 |= x0; x0 ^= x2; x2 &= x1; \
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x4 |= x0; x0 ^= x2; x2 &= x1; \
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x3 ^= x2; x1 =~ x1; x2 ^= x4; \
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x3 ^= x2; x1 =~ x1; x2 ^= x4; \
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x1 ^= x2;
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x1 ^= x2;
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#define S1(x0,x1,x2,x3,x4) \
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#define S1(x0,x1,x2,x3,x4) \
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x4 = x1; \
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x4 = x1; \
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x1 ^= x0; x0 ^= x3; x3 =~ x3; \
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x1 ^= x0; x0 ^= x3; x3 =~ x3; \
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x4 &= x1; x0 |= x1; x3 ^= x2; \
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x4 &= x1; x0 |= x1; x3 ^= x2; \
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x0 ^= x3; x1 ^= x3; x3 ^= x4; \
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x0 ^= x3; x1 ^= x3; x3 ^= x4; \
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x1 |= x4; x4 ^= x2; x2 &= x0; \
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x1 |= x4; x4 ^= x2; x2 &= x0; \
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x2 ^= x1; x1 |= x0; x0 =~ x0; \
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x2 ^= x1; x1 |= x0; x0 =~ x0; \
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x0 ^= x2; x4 ^= x1;
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x0 ^= x2; x4 ^= x1;
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#define S2(x0,x1,x2,x3,x4) \
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#define S2(x0,x1,x2,x3,x4) \
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x3 =~ x3; \
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x3 =~ x3; \
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x1 ^= x0; x4 = x0; x0 &= x2; \
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x1 ^= x0; x4 = x0; x0 &= x2; \
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x0 ^= x3; x3 |= x4; x2 ^= x1; \
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x0 ^= x3; x3 |= x4; x2 ^= x1; \
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x3 ^= x1; x1 &= x0; x0 ^= x2; \
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x3 ^= x1; x1 &= x0; x0 ^= x2; \
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x2 &= x3; x3 |= x1; x0 =~ x0; \
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x2 &= x3; x3 |= x1; x0 =~ x0; \
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x3 ^= x0; x4 ^= x0; x0 ^= x2; \
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x3 ^= x0; x4 ^= x0; x0 ^= x2; \
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x1 |= x2;
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x1 |= x2;
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#define S3(x0,x1,x2,x3,x4) \
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#define S3(x0,x1,x2,x3,x4) \
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x4 = x1; \
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x4 = x1; \
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x1 ^= x3; x3 |= x0; x4 &= x0; \
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x1 ^= x3; x3 |= x0; x4 &= x0; \
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x0 ^= x2; x2 ^= x1; x1 &= x3; \
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x0 ^= x2; x2 ^= x1; x1 &= x3; \
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x2 ^= x3; x0 |= x4; x4 ^= x3; \
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x2 ^= x3; x0 |= x4; x4 ^= x3; \
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x1 ^= x0; x0 &= x3; x3 &= x4; \
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x1 ^= x0; x0 &= x3; x3 &= x4; \
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x3 ^= x2; x4 |= x1; x2 &= x1; \
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x3 ^= x2; x4 |= x1; x2 &= x1; \
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x4 ^= x3; x0 ^= x3; x3 ^= x2;
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x4 ^= x3; x0 ^= x3; x3 ^= x2;
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#define S4(x0,x1,x2,x3,x4) \
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#define S4(x0,x1,x2,x3,x4) \
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x4 = x3; \
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x4 = x3; \
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x3 &= x0; x0 ^= x4; \
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x3 &= x0; x0 ^= x4; \
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x3 ^= x2; x2 |= x4; x0 ^= x1; \
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x3 ^= x2; x2 |= x4; x0 ^= x1; \
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x4 ^= x3; x2 |= x0; \
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x4 ^= x3; x2 |= x0; \
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x2 ^= x1; x1 &= x0; \
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x2 ^= x1; x1 &= x0; \
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x1 ^= x4; x4 &= x2; x2 ^= x3; \
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x1 ^= x4; x4 &= x2; x2 ^= x3; \
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x4 ^= x0; x3 |= x1; x1 =~ x1; \
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x4 ^= x0; x3 |= x1; x1 =~ x1; \
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x3 ^= x0;
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x3 ^= x0;
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#define S5(x0,x1,x2,x3,x4) \
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#define S5(x0,x1,x2,x3,x4) \
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x4 = x1; x1 |= x0; \
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x4 = x1; x1 |= x0; \
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x2 ^= x1; x3 =~ x3; x4 ^= x0; \
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x2 ^= x1; x3 =~ x3; x4 ^= x0; \
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x0 ^= x2; x1 &= x4; x4 |= x3; \
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x0 ^= x2; x1 &= x4; x4 |= x3; \
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x4 ^= x0; x0 &= x3; x1 ^= x3; \
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x4 ^= x0; x0 &= x3; x1 ^= x3; \
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x3 ^= x2; x0 ^= x1; x2 &= x4; \
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x3 ^= x2; x0 ^= x1; x2 &= x4; \
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x1 ^= x2; x2 &= x0; \
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x1 ^= x2; x2 &= x0; \
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x3 ^= x2;
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x3 ^= x2;
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#define S6(x0,x1,x2,x3,x4) \
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#define S6(x0,x1,x2,x3,x4) \
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x4 = x1; \
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x4 = x1; \
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x3 ^= x0; x1 ^= x2; x2 ^= x0; \
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x3 ^= x0; x1 ^= x2; x2 ^= x0; \
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x0 &= x3; x1 |= x3; x4 =~ x4; \
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x0 &= x3; x1 |= x3; x4 =~ x4; \
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x0 ^= x1; x1 ^= x2; \
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x0 ^= x1; x1 ^= x2; \
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x3 ^= x4; x4 ^= x0; x2 &= x0; \
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x3 ^= x4; x4 ^= x0; x2 &= x0; \
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x4 ^= x1; x2 ^= x3; x3 &= x1; \
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x4 ^= x1; x2 ^= x3; x3 &= x1; \
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x3 ^= x0; x1 ^= x2;
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x3 ^= x0; x1 ^= x2;
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#define S7(x0,x1,x2,x3,x4) \
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#define S7(x0,x1,x2,x3,x4) \
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x1 =~ x1; \
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x1 =~ x1; \
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x4 = x1; x0 =~ x0; x1 &= x2; \
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x4 = x1; x0 =~ x0; x1 &= x2; \
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x1 ^= x3; x3 |= x4; x4 ^= x2; \
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x1 ^= x3; x3 |= x4; x4 ^= x2; \
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x2 ^= x3; x3 ^= x0; x0 |= x1; \
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x2 ^= x3; x3 ^= x0; x0 |= x1; \
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x2 &= x0; x0 ^= x4; x4 ^= x3; \
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x2 &= x0; x0 ^= x4; x4 ^= x3; \
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x3 &= x0; x4 ^= x1; \
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x3 &= x0; x4 ^= x1; \
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x2 ^= x4; x3 ^= x1; x4 |= x0; \
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x2 ^= x4; x3 ^= x1; x4 |= x0; \
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x4 ^= x1;
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x4 ^= x1;
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#define SI0(x0,x1,x2,x3,x4) \
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#define SI0(x0,x1,x2,x3,x4) \
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x4 = x3; x1 ^= x0; \
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x4 = x3; x1 ^= x0; \
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x3 |= x1; x4 ^= x1; x0 =~ x0; \
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x3 |= x1; x4 ^= x1; x0 =~ x0; \
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x2 ^= x3; x3 ^= x0; x0 &= x1; \
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x2 ^= x3; x3 ^= x0; x0 &= x1; \
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x0 ^= x2; x2 &= x3; x3 ^= x4; \
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x0 ^= x2; x2 &= x3; x3 ^= x4; \
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x2 ^= x3; x1 ^= x3; x3 &= x0; \
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x2 ^= x3; x1 ^= x3; x3 &= x0; \
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x1 ^= x0; x0 ^= x2; x4 ^= x3;
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x1 ^= x0; x0 ^= x2; x4 ^= x3;
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#define SI1(x0,x1,x2,x3,x4) \
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#define SI1(x0,x1,x2,x3,x4) \
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x1 ^= x3; x4 = x0; \
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x1 ^= x3; x4 = x0; \
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x0 ^= x2; x2 =~ x2; x4 |= x1; \
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x0 ^= x2; x2 =~ x2; x4 |= x1; \
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x4 ^= x3; x3 &= x1; x1 ^= x2; \
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x4 ^= x3; x3 &= x1; x1 ^= x2; \
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x2 &= x4; x4 ^= x1; x1 |= x3; \
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x2 &= x4; x4 ^= x1; x1 |= x3; \
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x3 ^= x0; x2 ^= x0; x0 |= x4; \
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x3 ^= x0; x2 ^= x0; x0 |= x4; \
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x2 ^= x4; x1 ^= x0; \
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x2 ^= x4; x1 ^= x0; \
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x4 ^= x1;
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x4 ^= x1;
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#define SI2(x0,x1,x2,x3,x4) \
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#define SI2(x0,x1,x2,x3,x4) \
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x2 ^= x1; x4 = x3; x3 =~ x3; \
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x2 ^= x1; x4 = x3; x3 =~ x3; \
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x3 |= x2; x2 ^= x4; x4 ^= x0; \
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x3 |= x2; x2 ^= x4; x4 ^= x0; \
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x3 ^= x1; x1 |= x2; x2 ^= x0; \
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x3 ^= x1; x1 |= x2; x2 ^= x0; \
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x1 ^= x4; x4 |= x3; x2 ^= x3; \
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x1 ^= x4; x4 |= x3; x2 ^= x3; \
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x4 ^= x2; x2 &= x1; \
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x4 ^= x2; x2 &= x1; \
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x2 ^= x3; x3 ^= x4; x4 ^= x0;
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x2 ^= x3; x3 ^= x4; x4 ^= x0;
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#define SI3(x0,x1,x2,x3,x4) \
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#define SI3(x0,x1,x2,x3,x4) \
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x2 ^= x1; \
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x2 ^= x1; \
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x4 = x1; x1 &= x2; \
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x4 = x1; x1 &= x2; \
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x1 ^= x0; x0 |= x4; x4 ^= x3; \
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x1 ^= x0; x0 |= x4; x4 ^= x3; \
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x0 ^= x3; x3 |= x1; x1 ^= x2; \
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x0 ^= x3; x3 |= x1; x1 ^= x2; \
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x1 ^= x3; x0 ^= x2; x2 ^= x3; \
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x1 ^= x3; x0 ^= x2; x2 ^= x3; \
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x3 &= x1; x1 ^= x0; x0 &= x2; \
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x3 &= x1; x1 ^= x0; x0 &= x2; \
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x4 ^= x3; x3 ^= x0; x0 ^= x1;
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x4 ^= x3; x3 ^= x0; x0 ^= x1;
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#define SI4(x0,x1,x2,x3,x4) \
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#define SI4(x0,x1,x2,x3,x4) \
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x2 ^= x3; x4 = x0; x0 &= x1; \
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x2 ^= x3; x4 = x0; x0 &= x1; \
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x0 ^= x2; x2 |= x3; x4 =~ x4; \
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x0 ^= x2; x2 |= x3; x4 =~ x4; \
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x1 ^= x0; x0 ^= x2; x2 &= x4; \
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x1 ^= x0; x0 ^= x2; x2 &= x4; \
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x2 ^= x0; x0 |= x4; \
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x2 ^= x0; x0 |= x4; \
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x0 ^= x3; x3 &= x2; \
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x0 ^= x3; x3 &= x2; \
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x4 ^= x3; x3 ^= x1; x1 &= x0; \
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x4 ^= x3; x3 ^= x1; x1 &= x0; \
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x4 ^= x1; x0 ^= x3;
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x4 ^= x1; x0 ^= x3;
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#define SI5(x0,x1,x2,x3,x4) \
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#define SI5(x0,x1,x2,x3,x4) \
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x4 = x1; x1 |= x2; \
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x4 = x1; x1 |= x2; \
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x2 ^= x4; x1 ^= x3; x3 &= x4; \
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x2 ^= x4; x1 ^= x3; x3 &= x4; \
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x2 ^= x3; x3 |= x0; x0 =~ x0; \
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x2 ^= x3; x3 |= x0; x0 =~ x0; \
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x3 ^= x2; x2 |= x0; x4 ^= x1; \
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x3 ^= x2; x2 |= x0; x4 ^= x1; \
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x2 ^= x4; x4 &= x0; x0 ^= x1; \
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x2 ^= x4; x4 &= x0; x0 ^= x1; \
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x1 ^= x3; x0 &= x2; x2 ^= x3; \
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x1 ^= x3; x0 &= x2; x2 ^= x3; \
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x0 ^= x2; x2 ^= x4; x4 ^= x3;
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x0 ^= x2; x2 ^= x4; x4 ^= x3;
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#define SI6(x0,x1,x2,x3,x4) \
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#define SI6(x0,x1,x2,x3,x4) \
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x0 ^= x2; \
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x0 ^= x2; \
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x4 = x0; x0 &= x3; x2 ^= x3; \
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x4 = x0; x0 &= x3; x2 ^= x3; \
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x0 ^= x2; x3 ^= x1; x2 |= x4; \
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x0 ^= x2; x3 ^= x1; x2 |= x4; \
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x2 ^= x3; x3 &= x0; x0 =~ x0; \
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x2 ^= x3; x3 &= x0; x0 =~ x0; \
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x3 ^= x1; x1 &= x2; x4 ^= x0; \
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x3 ^= x1; x1 &= x2; x4 ^= x0; \
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x3 ^= x4; x4 ^= x2; x0 ^= x1; \
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x3 ^= x4; x4 ^= x2; x0 ^= x1; \
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x2 ^= x0;
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x2 ^= x0;
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#define SI7(x0,x1,x2,x3,x4) \
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#define SI7(x0,x1,x2,x3,x4) \
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x4 = x3; x3 &= x0; x0 ^= x2; \
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x4 = x3; x3 &= x0; x0 ^= x2; \
|
x2 |= x4; x4 ^= x1; x0 =~ x0; \
|
x2 |= x4; x4 ^= x1; x0 =~ x0; \
|
x1 |= x3; x4 ^= x0; x0 &= x2; \
|
x1 |= x3; x4 ^= x0; x0 &= x2; \
|
x0 ^= x1; x1 &= x2; x3 ^= x2; \
|
x0 ^= x1; x1 &= x2; x3 ^= x2; \
|
x4 ^= x3; x2 &= x3; x3 |= x0; \
|
x4 ^= x3; x2 &= x3; x3 |= x0; \
|
x1 ^= x4; x3 ^= x4; x4 &= x0; \
|
x1 ^= x4; x3 ^= x4; x4 &= x0; \
|
x4 ^= x2;
|
x4 ^= x2;
|
|
|
struct serpent_ctx {
|
struct serpent_ctx {
|
u8 iv[SERPENT_BLOCK_SIZE];
|
u8 iv[SERPENT_BLOCK_SIZE];
|
u32 expkey[SERPENT_EXPKEY_WORDS];
|
u32 expkey[SERPENT_EXPKEY_WORDS];
|
};
|
};
|
|
|
static int setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
|
static int setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
|
{
|
{
|
u32 *k = ((struct serpent_ctx *)ctx)->expkey;
|
u32 *k = ((struct serpent_ctx *)ctx)->expkey;
|
u8 *k8 = (u8 *)k;
|
u8 *k8 = (u8 *)k;
|
u32 r0,r1,r2,r3,r4;
|
u32 r0,r1,r2,r3,r4;
|
int i;
|
int i;
|
|
|
if ((keylen < SERPENT_MIN_KEY_SIZE)
|
if ((keylen < SERPENT_MIN_KEY_SIZE)
|
|| (keylen > SERPENT_MAX_KEY_SIZE))
|
|| (keylen > SERPENT_MAX_KEY_SIZE))
|
{
|
{
|
*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
|
*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
|
return -EINVAL;
|
return -EINVAL;
|
}
|
}
|
|
|
/* Copy key, add padding */
|
/* Copy key, add padding */
|
|
|
for (i = 0; i < keylen; ++i)
|
for (i = 0; i < keylen; ++i)
|
k8[i] = key[i];
|
k8[i] = key[i];
|
if (i < SERPENT_MAX_KEY_SIZE)
|
if (i < SERPENT_MAX_KEY_SIZE)
|
k8[i++] = 1;
|
k8[i++] = 1;
|
while (i < SERPENT_MAX_KEY_SIZE)
|
while (i < SERPENT_MAX_KEY_SIZE)
|
k8[i++] = 0;
|
k8[i++] = 0;
|
|
|
/* Expand key using polynomial */
|
/* Expand key using polynomial */
|
|
|
r0 = le32_to_cpu(k[3]);
|
r0 = le32_to_cpu(k[3]);
|
r1 = le32_to_cpu(k[4]);
|
r1 = le32_to_cpu(k[4]);
|
r2 = le32_to_cpu(k[5]);
|
r2 = le32_to_cpu(k[5]);
|
r3 = le32_to_cpu(k[6]);
|
r3 = le32_to_cpu(k[6]);
|
r4 = le32_to_cpu(k[7]);
|
r4 = le32_to_cpu(k[7]);
|
|
|
keyiter(le32_to_cpu(k[0]),r0,r4,r2,0,0);
|
keyiter(le32_to_cpu(k[0]),r0,r4,r2,0,0);
|
keyiter(le32_to_cpu(k[1]),r1,r0,r3,1,1);
|
keyiter(le32_to_cpu(k[1]),r1,r0,r3,1,1);
|
keyiter(le32_to_cpu(k[2]),r2,r1,r4,2,2);
|
keyiter(le32_to_cpu(k[2]),r2,r1,r4,2,2);
|
keyiter(le32_to_cpu(k[3]),r3,r2,r0,3,3);
|
keyiter(le32_to_cpu(k[3]),r3,r2,r0,3,3);
|
keyiter(le32_to_cpu(k[4]),r4,r3,r1,4,4);
|
keyiter(le32_to_cpu(k[4]),r4,r3,r1,4,4);
|
keyiter(le32_to_cpu(k[5]),r0,r4,r2,5,5);
|
keyiter(le32_to_cpu(k[5]),r0,r4,r2,5,5);
|
keyiter(le32_to_cpu(k[6]),r1,r0,r3,6,6);
|
keyiter(le32_to_cpu(k[6]),r1,r0,r3,6,6);
|
keyiter(le32_to_cpu(k[7]),r2,r1,r4,7,7);
|
keyiter(le32_to_cpu(k[7]),r2,r1,r4,7,7);
|
|
|
keyiter(k[ 0],r3,r2,r0, 8, 8); keyiter(k[ 1],r4,r3,r1, 9, 9);
|
keyiter(k[ 0],r3,r2,r0, 8, 8); keyiter(k[ 1],r4,r3,r1, 9, 9);
|
keyiter(k[ 2],r0,r4,r2, 10, 10); keyiter(k[ 3],r1,r0,r3, 11, 11);
|
keyiter(k[ 2],r0,r4,r2, 10, 10); keyiter(k[ 3],r1,r0,r3, 11, 11);
|
keyiter(k[ 4],r2,r1,r4, 12, 12); keyiter(k[ 5],r3,r2,r0, 13, 13);
|
keyiter(k[ 4],r2,r1,r4, 12, 12); keyiter(k[ 5],r3,r2,r0, 13, 13);
|
keyiter(k[ 6],r4,r3,r1, 14, 14); keyiter(k[ 7],r0,r4,r2, 15, 15);
|
keyiter(k[ 6],r4,r3,r1, 14, 14); keyiter(k[ 7],r0,r4,r2, 15, 15);
|
keyiter(k[ 8],r1,r0,r3, 16, 16); keyiter(k[ 9],r2,r1,r4, 17, 17);
|
keyiter(k[ 8],r1,r0,r3, 16, 16); keyiter(k[ 9],r2,r1,r4, 17, 17);
|
keyiter(k[ 10],r3,r2,r0, 18, 18); keyiter(k[ 11],r4,r3,r1, 19, 19);
|
keyiter(k[ 10],r3,r2,r0, 18, 18); keyiter(k[ 11],r4,r3,r1, 19, 19);
|
keyiter(k[ 12],r0,r4,r2, 20, 20); keyiter(k[ 13],r1,r0,r3, 21, 21);
|
keyiter(k[ 12],r0,r4,r2, 20, 20); keyiter(k[ 13],r1,r0,r3, 21, 21);
|
keyiter(k[ 14],r2,r1,r4, 22, 22); keyiter(k[ 15],r3,r2,r0, 23, 23);
|
keyiter(k[ 14],r2,r1,r4, 22, 22); keyiter(k[ 15],r3,r2,r0, 23, 23);
|
keyiter(k[ 16],r4,r3,r1, 24, 24); keyiter(k[ 17],r0,r4,r2, 25, 25);
|
keyiter(k[ 16],r4,r3,r1, 24, 24); keyiter(k[ 17],r0,r4,r2, 25, 25);
|
keyiter(k[ 18],r1,r0,r3, 26, 26); keyiter(k[ 19],r2,r1,r4, 27, 27);
|
keyiter(k[ 18],r1,r0,r3, 26, 26); keyiter(k[ 19],r2,r1,r4, 27, 27);
|
keyiter(k[ 20],r3,r2,r0, 28, 28); keyiter(k[ 21],r4,r3,r1, 29, 29);
|
keyiter(k[ 20],r3,r2,r0, 28, 28); keyiter(k[ 21],r4,r3,r1, 29, 29);
|
keyiter(k[ 22],r0,r4,r2, 30, 30); keyiter(k[ 23],r1,r0,r3, 31, 31);
|
keyiter(k[ 22],r0,r4,r2, 30, 30); keyiter(k[ 23],r1,r0,r3, 31, 31);
|
|
|
k += 50;
|
k += 50;
|
|
|
keyiter(k[-26],r2,r1,r4, 32,-18); keyiter(k[-25],r3,r2,r0, 33,-17);
|
keyiter(k[-26],r2,r1,r4, 32,-18); keyiter(k[-25],r3,r2,r0, 33,-17);
|
keyiter(k[-24],r4,r3,r1, 34,-16); keyiter(k[-23],r0,r4,r2, 35,-15);
|
keyiter(k[-24],r4,r3,r1, 34,-16); keyiter(k[-23],r0,r4,r2, 35,-15);
|
keyiter(k[-22],r1,r0,r3, 36,-14); keyiter(k[-21],r2,r1,r4, 37,-13);
|
keyiter(k[-22],r1,r0,r3, 36,-14); keyiter(k[-21],r2,r1,r4, 37,-13);
|
keyiter(k[-20],r3,r2,r0, 38,-12); keyiter(k[-19],r4,r3,r1, 39,-11);
|
keyiter(k[-20],r3,r2,r0, 38,-12); keyiter(k[-19],r4,r3,r1, 39,-11);
|
keyiter(k[-18],r0,r4,r2, 40,-10); keyiter(k[-17],r1,r0,r3, 41, -9);
|
keyiter(k[-18],r0,r4,r2, 40,-10); keyiter(k[-17],r1,r0,r3, 41, -9);
|
keyiter(k[-16],r2,r1,r4, 42, -8); keyiter(k[-15],r3,r2,r0, 43, -7);
|
keyiter(k[-16],r2,r1,r4, 42, -8); keyiter(k[-15],r3,r2,r0, 43, -7);
|
keyiter(k[-14],r4,r3,r1, 44, -6); keyiter(k[-13],r0,r4,r2, 45, -5);
|
keyiter(k[-14],r4,r3,r1, 44, -6); keyiter(k[-13],r0,r4,r2, 45, -5);
|
keyiter(k[-12],r1,r0,r3, 46, -4); keyiter(k[-11],r2,r1,r4, 47, -3);
|
keyiter(k[-12],r1,r0,r3, 46, -4); keyiter(k[-11],r2,r1,r4, 47, -3);
|
keyiter(k[-10],r3,r2,r0, 48, -2); keyiter(k[ -9],r4,r3,r1, 49, -1);
|
keyiter(k[-10],r3,r2,r0, 48, -2); keyiter(k[ -9],r4,r3,r1, 49, -1);
|
keyiter(k[ -8],r0,r4,r2, 50, 0); keyiter(k[ -7],r1,r0,r3, 51, 1);
|
keyiter(k[ -8],r0,r4,r2, 50, 0); keyiter(k[ -7],r1,r0,r3, 51, 1);
|
keyiter(k[ -6],r2,r1,r4, 52, 2); keyiter(k[ -5],r3,r2,r0, 53, 3);
|
keyiter(k[ -6],r2,r1,r4, 52, 2); keyiter(k[ -5],r3,r2,r0, 53, 3);
|
keyiter(k[ -4],r4,r3,r1, 54, 4); keyiter(k[ -3],r0,r4,r2, 55, 5);
|
keyiter(k[ -4],r4,r3,r1, 54, 4); keyiter(k[ -3],r0,r4,r2, 55, 5);
|
keyiter(k[ -2],r1,r0,r3, 56, 6); keyiter(k[ -1],r2,r1,r4, 57, 7);
|
keyiter(k[ -2],r1,r0,r3, 56, 6); keyiter(k[ -1],r2,r1,r4, 57, 7);
|
keyiter(k[ 0],r3,r2,r0, 58, 8); keyiter(k[ 1],r4,r3,r1, 59, 9);
|
keyiter(k[ 0],r3,r2,r0, 58, 8); keyiter(k[ 1],r4,r3,r1, 59, 9);
|
keyiter(k[ 2],r0,r4,r2, 60, 10); keyiter(k[ 3],r1,r0,r3, 61, 11);
|
keyiter(k[ 2],r0,r4,r2, 60, 10); keyiter(k[ 3],r1,r0,r3, 61, 11);
|
keyiter(k[ 4],r2,r1,r4, 62, 12); keyiter(k[ 5],r3,r2,r0, 63, 13);
|
keyiter(k[ 4],r2,r1,r4, 62, 12); keyiter(k[ 5],r3,r2,r0, 63, 13);
|
keyiter(k[ 6],r4,r3,r1, 64, 14); keyiter(k[ 7],r0,r4,r2, 65, 15);
|
keyiter(k[ 6],r4,r3,r1, 64, 14); keyiter(k[ 7],r0,r4,r2, 65, 15);
|
keyiter(k[ 8],r1,r0,r3, 66, 16); keyiter(k[ 9],r2,r1,r4, 67, 17);
|
keyiter(k[ 8],r1,r0,r3, 66, 16); keyiter(k[ 9],r2,r1,r4, 67, 17);
|
keyiter(k[ 10],r3,r2,r0, 68, 18); keyiter(k[ 11],r4,r3,r1, 69, 19);
|
keyiter(k[ 10],r3,r2,r0, 68, 18); keyiter(k[ 11],r4,r3,r1, 69, 19);
|
keyiter(k[ 12],r0,r4,r2, 70, 20); keyiter(k[ 13],r1,r0,r3, 71, 21);
|
keyiter(k[ 12],r0,r4,r2, 70, 20); keyiter(k[ 13],r1,r0,r3, 71, 21);
|
keyiter(k[ 14],r2,r1,r4, 72, 22); keyiter(k[ 15],r3,r2,r0, 73, 23);
|
keyiter(k[ 14],r2,r1,r4, 72, 22); keyiter(k[ 15],r3,r2,r0, 73, 23);
|
keyiter(k[ 16],r4,r3,r1, 74, 24); keyiter(k[ 17],r0,r4,r2, 75, 25);
|
keyiter(k[ 16],r4,r3,r1, 74, 24); keyiter(k[ 17],r0,r4,r2, 75, 25);
|
keyiter(k[ 18],r1,r0,r3, 76, 26); keyiter(k[ 19],r2,r1,r4, 77, 27);
|
keyiter(k[ 18],r1,r0,r3, 76, 26); keyiter(k[ 19],r2,r1,r4, 77, 27);
|
keyiter(k[ 20],r3,r2,r0, 78, 28); keyiter(k[ 21],r4,r3,r1, 79, 29);
|
keyiter(k[ 20],r3,r2,r0, 78, 28); keyiter(k[ 21],r4,r3,r1, 79, 29);
|
keyiter(k[ 22],r0,r4,r2, 80, 30); keyiter(k[ 23],r1,r0,r3, 81, 31);
|
keyiter(k[ 22],r0,r4,r2, 80, 30); keyiter(k[ 23],r1,r0,r3, 81, 31);
|
|
|
k += 50;
|
k += 50;
|
|
|
keyiter(k[-26],r2,r1,r4, 82,-18); keyiter(k[-25],r3,r2,r0, 83,-17);
|
keyiter(k[-26],r2,r1,r4, 82,-18); keyiter(k[-25],r3,r2,r0, 83,-17);
|
keyiter(k[-24],r4,r3,r1, 84,-16); keyiter(k[-23],r0,r4,r2, 85,-15);
|
keyiter(k[-24],r4,r3,r1, 84,-16); keyiter(k[-23],r0,r4,r2, 85,-15);
|
keyiter(k[-22],r1,r0,r3, 86,-14); keyiter(k[-21],r2,r1,r4, 87,-13);
|
keyiter(k[-22],r1,r0,r3, 86,-14); keyiter(k[-21],r2,r1,r4, 87,-13);
|
keyiter(k[-20],r3,r2,r0, 88,-12); keyiter(k[-19],r4,r3,r1, 89,-11);
|
keyiter(k[-20],r3,r2,r0, 88,-12); keyiter(k[-19],r4,r3,r1, 89,-11);
|
keyiter(k[-18],r0,r4,r2, 90,-10); keyiter(k[-17],r1,r0,r3, 91, -9);
|
keyiter(k[-18],r0,r4,r2, 90,-10); keyiter(k[-17],r1,r0,r3, 91, -9);
|
keyiter(k[-16],r2,r1,r4, 92, -8); keyiter(k[-15],r3,r2,r0, 93, -7);
|
keyiter(k[-16],r2,r1,r4, 92, -8); keyiter(k[-15],r3,r2,r0, 93, -7);
|
keyiter(k[-14],r4,r3,r1, 94, -6); keyiter(k[-13],r0,r4,r2, 95, -5);
|
keyiter(k[-14],r4,r3,r1, 94, -6); keyiter(k[-13],r0,r4,r2, 95, -5);
|
keyiter(k[-12],r1,r0,r3, 96, -4); keyiter(k[-11],r2,r1,r4, 97, -3);
|
keyiter(k[-12],r1,r0,r3, 96, -4); keyiter(k[-11],r2,r1,r4, 97, -3);
|
keyiter(k[-10],r3,r2,r0, 98, -2); keyiter(k[ -9],r4,r3,r1, 99, -1);
|
keyiter(k[-10],r3,r2,r0, 98, -2); keyiter(k[ -9],r4,r3,r1, 99, -1);
|
keyiter(k[ -8],r0,r4,r2,100, 0); keyiter(k[ -7],r1,r0,r3,101, 1);
|
keyiter(k[ -8],r0,r4,r2,100, 0); keyiter(k[ -7],r1,r0,r3,101, 1);
|
keyiter(k[ -6],r2,r1,r4,102, 2); keyiter(k[ -5],r3,r2,r0,103, 3);
|
keyiter(k[ -6],r2,r1,r4,102, 2); keyiter(k[ -5],r3,r2,r0,103, 3);
|
keyiter(k[ -4],r4,r3,r1,104, 4); keyiter(k[ -3],r0,r4,r2,105, 5);
|
keyiter(k[ -4],r4,r3,r1,104, 4); keyiter(k[ -3],r0,r4,r2,105, 5);
|
keyiter(k[ -2],r1,r0,r3,106, 6); keyiter(k[ -1],r2,r1,r4,107, 7);
|
keyiter(k[ -2],r1,r0,r3,106, 6); keyiter(k[ -1],r2,r1,r4,107, 7);
|
keyiter(k[ 0],r3,r2,r0,108, 8); keyiter(k[ 1],r4,r3,r1,109, 9);
|
keyiter(k[ 0],r3,r2,r0,108, 8); keyiter(k[ 1],r4,r3,r1,109, 9);
|
keyiter(k[ 2],r0,r4,r2,110, 10); keyiter(k[ 3],r1,r0,r3,111, 11);
|
keyiter(k[ 2],r0,r4,r2,110, 10); keyiter(k[ 3],r1,r0,r3,111, 11);
|
keyiter(k[ 4],r2,r1,r4,112, 12); keyiter(k[ 5],r3,r2,r0,113, 13);
|
keyiter(k[ 4],r2,r1,r4,112, 12); keyiter(k[ 5],r3,r2,r0,113, 13);
|
keyiter(k[ 6],r4,r3,r1,114, 14); keyiter(k[ 7],r0,r4,r2,115, 15);
|
keyiter(k[ 6],r4,r3,r1,114, 14); keyiter(k[ 7],r0,r4,r2,115, 15);
|
keyiter(k[ 8],r1,r0,r3,116, 16); keyiter(k[ 9],r2,r1,r4,117, 17);
|
keyiter(k[ 8],r1,r0,r3,116, 16); keyiter(k[ 9],r2,r1,r4,117, 17);
|
keyiter(k[ 10],r3,r2,r0,118, 18); keyiter(k[ 11],r4,r3,r1,119, 19);
|
keyiter(k[ 10],r3,r2,r0,118, 18); keyiter(k[ 11],r4,r3,r1,119, 19);
|
keyiter(k[ 12],r0,r4,r2,120, 20); keyiter(k[ 13],r1,r0,r3,121, 21);
|
keyiter(k[ 12],r0,r4,r2,120, 20); keyiter(k[ 13],r1,r0,r3,121, 21);
|
keyiter(k[ 14],r2,r1,r4,122, 22); keyiter(k[ 15],r3,r2,r0,123, 23);
|
keyiter(k[ 14],r2,r1,r4,122, 22); keyiter(k[ 15],r3,r2,r0,123, 23);
|
keyiter(k[ 16],r4,r3,r1,124, 24); keyiter(k[ 17],r0,r4,r2,125, 25);
|
keyiter(k[ 16],r4,r3,r1,124, 24); keyiter(k[ 17],r0,r4,r2,125, 25);
|
keyiter(k[ 18],r1,r0,r3,126, 26); keyiter(k[ 19],r2,r1,r4,127, 27);
|
keyiter(k[ 18],r1,r0,r3,126, 26); keyiter(k[ 19],r2,r1,r4,127, 27);
|
keyiter(k[ 20],r3,r2,r0,128, 28); keyiter(k[ 21],r4,r3,r1,129, 29);
|
keyiter(k[ 20],r3,r2,r0,128, 28); keyiter(k[ 21],r4,r3,r1,129, 29);
|
keyiter(k[ 22],r0,r4,r2,130, 30); keyiter(k[ 23],r1,r0,r3,131, 31);
|
keyiter(k[ 22],r0,r4,r2,130, 30); keyiter(k[ 23],r1,r0,r3,131, 31);
|
|
|
/* Apply S-boxes */
|
/* Apply S-boxes */
|
|
|
S3(r3,r4,r0,r1,r2); storekeys(r1,r2,r4,r3, 28); loadkeys(r1,r2,r4,r3, 24);
|
S3(r3,r4,r0,r1,r2); storekeys(r1,r2,r4,r3, 28); loadkeys(r1,r2,r4,r3, 24);
|
S4(r1,r2,r4,r3,r0); storekeys(r2,r4,r3,r0, 24); loadkeys(r2,r4,r3,r0, 20);
|
S4(r1,r2,r4,r3,r0); storekeys(r2,r4,r3,r0, 24); loadkeys(r2,r4,r3,r0, 20);
|
S5(r2,r4,r3,r0,r1); storekeys(r1,r2,r4,r0, 20); loadkeys(r1,r2,r4,r0, 16);
|
S5(r2,r4,r3,r0,r1); storekeys(r1,r2,r4,r0, 20); loadkeys(r1,r2,r4,r0, 16);
|
S6(r1,r2,r4,r0,r3); storekeys(r4,r3,r2,r0, 16); loadkeys(r4,r3,r2,r0, 12);
|
S6(r1,r2,r4,r0,r3); storekeys(r4,r3,r2,r0, 16); loadkeys(r4,r3,r2,r0, 12);
|
S7(r4,r3,r2,r0,r1); storekeys(r1,r2,r0,r4, 12); loadkeys(r1,r2,r0,r4, 8);
|
S7(r4,r3,r2,r0,r1); storekeys(r1,r2,r0,r4, 12); loadkeys(r1,r2,r0,r4, 8);
|
S0(r1,r2,r0,r4,r3); storekeys(r0,r2,r4,r1, 8); loadkeys(r0,r2,r4,r1, 4);
|
S0(r1,r2,r0,r4,r3); storekeys(r0,r2,r4,r1, 8); loadkeys(r0,r2,r4,r1, 4);
|
S1(r0,r2,r4,r1,r3); storekeys(r3,r4,r1,r0, 4); loadkeys(r3,r4,r1,r0, 0);
|
S1(r0,r2,r4,r1,r3); storekeys(r3,r4,r1,r0, 4); loadkeys(r3,r4,r1,r0, 0);
|
S2(r3,r4,r1,r0,r2); storekeys(r2,r4,r3,r0, 0); loadkeys(r2,r4,r3,r0, -4);
|
S2(r3,r4,r1,r0,r2); storekeys(r2,r4,r3,r0, 0); loadkeys(r2,r4,r3,r0, -4);
|
S3(r2,r4,r3,r0,r1); storekeys(r0,r1,r4,r2, -4); loadkeys(r0,r1,r4,r2, -8);
|
S3(r2,r4,r3,r0,r1); storekeys(r0,r1,r4,r2, -4); loadkeys(r0,r1,r4,r2, -8);
|
S4(r0,r1,r4,r2,r3); storekeys(r1,r4,r2,r3, -8); loadkeys(r1,r4,r2,r3,-12);
|
S4(r0,r1,r4,r2,r3); storekeys(r1,r4,r2,r3, -8); loadkeys(r1,r4,r2,r3,-12);
|
S5(r1,r4,r2,r3,r0); storekeys(r0,r1,r4,r3,-12); loadkeys(r0,r1,r4,r3,-16);
|
S5(r1,r4,r2,r3,r0); storekeys(r0,r1,r4,r3,-12); loadkeys(r0,r1,r4,r3,-16);
|
S6(r0,r1,r4,r3,r2); storekeys(r4,r2,r1,r3,-16); loadkeys(r4,r2,r1,r3,-20);
|
S6(r0,r1,r4,r3,r2); storekeys(r4,r2,r1,r3,-16); loadkeys(r4,r2,r1,r3,-20);
|
S7(r4,r2,r1,r3,r0); storekeys(r0,r1,r3,r4,-20); loadkeys(r0,r1,r3,r4,-24);
|
S7(r4,r2,r1,r3,r0); storekeys(r0,r1,r3,r4,-20); loadkeys(r0,r1,r3,r4,-24);
|
S0(r0,r1,r3,r4,r2); storekeys(r3,r1,r4,r0,-24); loadkeys(r3,r1,r4,r0,-28);
|
S0(r0,r1,r3,r4,r2); storekeys(r3,r1,r4,r0,-24); loadkeys(r3,r1,r4,r0,-28);
|
k -= 50;
|
k -= 50;
|
S1(r3,r1,r4,r0,r2); storekeys(r2,r4,r0,r3, 22); loadkeys(r2,r4,r0,r3, 18);
|
S1(r3,r1,r4,r0,r2); storekeys(r2,r4,r0,r3, 22); loadkeys(r2,r4,r0,r3, 18);
|
S2(r2,r4,r0,r3,r1); storekeys(r1,r4,r2,r3, 18); loadkeys(r1,r4,r2,r3, 14);
|
S2(r2,r4,r0,r3,r1); storekeys(r1,r4,r2,r3, 18); loadkeys(r1,r4,r2,r3, 14);
|
S3(r1,r4,r2,r3,r0); storekeys(r3,r0,r4,r1, 14); loadkeys(r3,r0,r4,r1, 10);
|
S3(r1,r4,r2,r3,r0); storekeys(r3,r0,r4,r1, 14); loadkeys(r3,r0,r4,r1, 10);
|
S4(r3,r0,r4,r1,r2); storekeys(r0,r4,r1,r2, 10); loadkeys(r0,r4,r1,r2, 6);
|
S4(r3,r0,r4,r1,r2); storekeys(r0,r4,r1,r2, 10); loadkeys(r0,r4,r1,r2, 6);
|
S5(r0,r4,r1,r2,r3); storekeys(r3,r0,r4,r2, 6); loadkeys(r3,r0,r4,r2, 2);
|
S5(r0,r4,r1,r2,r3); storekeys(r3,r0,r4,r2, 6); loadkeys(r3,r0,r4,r2, 2);
|
S6(r3,r0,r4,r2,r1); storekeys(r4,r1,r0,r2, 2); loadkeys(r4,r1,r0,r2, -2);
|
S6(r3,r0,r4,r2,r1); storekeys(r4,r1,r0,r2, 2); loadkeys(r4,r1,r0,r2, -2);
|
S7(r4,r1,r0,r2,r3); storekeys(r3,r0,r2,r4, -2); loadkeys(r3,r0,r2,r4, -6);
|
S7(r4,r1,r0,r2,r3); storekeys(r3,r0,r2,r4, -2); loadkeys(r3,r0,r2,r4, -6);
|
S0(r3,r0,r2,r4,r1); storekeys(r2,r0,r4,r3, -6); loadkeys(r2,r0,r4,r3,-10);
|
S0(r3,r0,r2,r4,r1); storekeys(r2,r0,r4,r3, -6); loadkeys(r2,r0,r4,r3,-10);
|
S1(r2,r0,r4,r3,r1); storekeys(r1,r4,r3,r2,-10); loadkeys(r1,r4,r3,r2,-14);
|
S1(r2,r0,r4,r3,r1); storekeys(r1,r4,r3,r2,-10); loadkeys(r1,r4,r3,r2,-14);
|
S2(r1,r4,r3,r2,r0); storekeys(r0,r4,r1,r2,-14); loadkeys(r0,r4,r1,r2,-18);
|
S2(r1,r4,r3,r2,r0); storekeys(r0,r4,r1,r2,-14); loadkeys(r0,r4,r1,r2,-18);
|
S3(r0,r4,r1,r2,r3); storekeys(r2,r3,r4,r0,-18); loadkeys(r2,r3,r4,r0,-22);
|
S3(r0,r4,r1,r2,r3); storekeys(r2,r3,r4,r0,-18); loadkeys(r2,r3,r4,r0,-22);
|
k -= 50;
|
k -= 50;
|
S4(r2,r3,r4,r0,r1); storekeys(r3,r4,r0,r1, 28); loadkeys(r3,r4,r0,r1, 24);
|
S4(r2,r3,r4,r0,r1); storekeys(r3,r4,r0,r1, 28); loadkeys(r3,r4,r0,r1, 24);
|
S5(r3,r4,r0,r1,r2); storekeys(r2,r3,r4,r1, 24); loadkeys(r2,r3,r4,r1, 20);
|
S5(r3,r4,r0,r1,r2); storekeys(r2,r3,r4,r1, 24); loadkeys(r2,r3,r4,r1, 20);
|
S6(r2,r3,r4,r1,r0); storekeys(r4,r0,r3,r1, 20); loadkeys(r4,r0,r3,r1, 16);
|
S6(r2,r3,r4,r1,r0); storekeys(r4,r0,r3,r1, 20); loadkeys(r4,r0,r3,r1, 16);
|
S7(r4,r0,r3,r1,r2); storekeys(r2,r3,r1,r4, 16); loadkeys(r2,r3,r1,r4, 12);
|
S7(r4,r0,r3,r1,r2); storekeys(r2,r3,r1,r4, 16); loadkeys(r2,r3,r1,r4, 12);
|
S0(r2,r3,r1,r4,r0); storekeys(r1,r3,r4,r2, 12); loadkeys(r1,r3,r4,r2, 8);
|
S0(r2,r3,r1,r4,r0); storekeys(r1,r3,r4,r2, 12); loadkeys(r1,r3,r4,r2, 8);
|
S1(r1,r3,r4,r2,r0); storekeys(r0,r4,r2,r1, 8); loadkeys(r0,r4,r2,r1, 4);
|
S1(r1,r3,r4,r2,r0); storekeys(r0,r4,r2,r1, 8); loadkeys(r0,r4,r2,r1, 4);
|
S2(r0,r4,r2,r1,r3); storekeys(r3,r4,r0,r1, 4); loadkeys(r3,r4,r0,r1, 0);
|
S2(r0,r4,r2,r1,r3); storekeys(r3,r4,r0,r1, 4); loadkeys(r3,r4,r0,r1, 0);
|
S3(r3,r4,r0,r1,r2); storekeys(r1,r2,r4,r3, 0);
|
S3(r3,r4,r0,r1,r2); storekeys(r1,r2,r4,r3, 0);
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static void encrypt(void *ctx, u8 *dst, const u8 *src)
|
static void encrypt(void *ctx, u8 *dst, const u8 *src)
|
{
|
{
|
const u32
|
const u32
|
*k = ((struct serpent_ctx *)ctx)->expkey,
|
*k = ((struct serpent_ctx *)ctx)->expkey,
|
*s = (const u32 *)src;
|
*s = (const u32 *)src;
|
u32 *d = (u32 *)dst,
|
u32 *d = (u32 *)dst,
|
r0, r1, r2, r3, r4;
|
r0, r1, r2, r3, r4;
|
|
|
/*
|
/*
|
* Note: The conversions between u8* and u32* might cause trouble
|
* Note: The conversions between u8* and u32* might cause trouble
|
* on architectures with stricter alignment rules than x86
|
* on architectures with stricter alignment rules than x86
|
*/
|
*/
|
|
|
r0 = le32_to_cpu(s[0]);
|
r0 = le32_to_cpu(s[0]);
|
r1 = le32_to_cpu(s[1]);
|
r1 = le32_to_cpu(s[1]);
|
r2 = le32_to_cpu(s[2]);
|
r2 = le32_to_cpu(s[2]);
|
r3 = le32_to_cpu(s[3]);
|
r3 = le32_to_cpu(s[3]);
|
|
|
K(r0,r1,r2,r3,0);
|
K(r0,r1,r2,r3,0);
|
S0(r0,r1,r2,r3,r4); LK(r2,r1,r3,r0,r4,1);
|
S0(r0,r1,r2,r3,r4); LK(r2,r1,r3,r0,r4,1);
|
S1(r2,r1,r3,r0,r4); LK(r4,r3,r0,r2,r1,2);
|
S1(r2,r1,r3,r0,r4); LK(r4,r3,r0,r2,r1,2);
|
S2(r4,r3,r0,r2,r1); LK(r1,r3,r4,r2,r0,3);
|
S2(r4,r3,r0,r2,r1); LK(r1,r3,r4,r2,r0,3);
|
S3(r1,r3,r4,r2,r0); LK(r2,r0,r3,r1,r4,4);
|
S3(r1,r3,r4,r2,r0); LK(r2,r0,r3,r1,r4,4);
|
S4(r2,r0,r3,r1,r4); LK(r0,r3,r1,r4,r2,5);
|
S4(r2,r0,r3,r1,r4); LK(r0,r3,r1,r4,r2,5);
|
S5(r0,r3,r1,r4,r2); LK(r2,r0,r3,r4,r1,6);
|
S5(r0,r3,r1,r4,r2); LK(r2,r0,r3,r4,r1,6);
|
S6(r2,r0,r3,r4,r1); LK(r3,r1,r0,r4,r2,7);
|
S6(r2,r0,r3,r4,r1); LK(r3,r1,r0,r4,r2,7);
|
S7(r3,r1,r0,r4,r2); LK(r2,r0,r4,r3,r1,8);
|
S7(r3,r1,r0,r4,r2); LK(r2,r0,r4,r3,r1,8);
|
S0(r2,r0,r4,r3,r1); LK(r4,r0,r3,r2,r1,9);
|
S0(r2,r0,r4,r3,r1); LK(r4,r0,r3,r2,r1,9);
|
S1(r4,r0,r3,r2,r1); LK(r1,r3,r2,r4,r0,10);
|
S1(r4,r0,r3,r2,r1); LK(r1,r3,r2,r4,r0,10);
|
S2(r1,r3,r2,r4,r0); LK(r0,r3,r1,r4,r2,11);
|
S2(r1,r3,r2,r4,r0); LK(r0,r3,r1,r4,r2,11);
|
S3(r0,r3,r1,r4,r2); LK(r4,r2,r3,r0,r1,12);
|
S3(r0,r3,r1,r4,r2); LK(r4,r2,r3,r0,r1,12);
|
S4(r4,r2,r3,r0,r1); LK(r2,r3,r0,r1,r4,13);
|
S4(r4,r2,r3,r0,r1); LK(r2,r3,r0,r1,r4,13);
|
S5(r2,r3,r0,r1,r4); LK(r4,r2,r3,r1,r0,14);
|
S5(r2,r3,r0,r1,r4); LK(r4,r2,r3,r1,r0,14);
|
S6(r4,r2,r3,r1,r0); LK(r3,r0,r2,r1,r4,15);
|
S6(r4,r2,r3,r1,r0); LK(r3,r0,r2,r1,r4,15);
|
S7(r3,r0,r2,r1,r4); LK(r4,r2,r1,r3,r0,16);
|
S7(r3,r0,r2,r1,r4); LK(r4,r2,r1,r3,r0,16);
|
S0(r4,r2,r1,r3,r0); LK(r1,r2,r3,r4,r0,17);
|
S0(r4,r2,r1,r3,r0); LK(r1,r2,r3,r4,r0,17);
|
S1(r1,r2,r3,r4,r0); LK(r0,r3,r4,r1,r2,18);
|
S1(r1,r2,r3,r4,r0); LK(r0,r3,r4,r1,r2,18);
|
S2(r0,r3,r4,r1,r2); LK(r2,r3,r0,r1,r4,19);
|
S2(r0,r3,r4,r1,r2); LK(r2,r3,r0,r1,r4,19);
|
S3(r2,r3,r0,r1,r4); LK(r1,r4,r3,r2,r0,20);
|
S3(r2,r3,r0,r1,r4); LK(r1,r4,r3,r2,r0,20);
|
S4(r1,r4,r3,r2,r0); LK(r4,r3,r2,r0,r1,21);
|
S4(r1,r4,r3,r2,r0); LK(r4,r3,r2,r0,r1,21);
|
S5(r4,r3,r2,r0,r1); LK(r1,r4,r3,r0,r2,22);
|
S5(r4,r3,r2,r0,r1); LK(r1,r4,r3,r0,r2,22);
|
S6(r1,r4,r3,r0,r2); LK(r3,r2,r4,r0,r1,23);
|
S6(r1,r4,r3,r0,r2); LK(r3,r2,r4,r0,r1,23);
|
S7(r3,r2,r4,r0,r1); LK(r1,r4,r0,r3,r2,24);
|
S7(r3,r2,r4,r0,r1); LK(r1,r4,r0,r3,r2,24);
|
S0(r1,r4,r0,r3,r2); LK(r0,r4,r3,r1,r2,25);
|
S0(r1,r4,r0,r3,r2); LK(r0,r4,r3,r1,r2,25);
|
S1(r0,r4,r3,r1,r2); LK(r2,r3,r1,r0,r4,26);
|
S1(r0,r4,r3,r1,r2); LK(r2,r3,r1,r0,r4,26);
|
S2(r2,r3,r1,r0,r4); LK(r4,r3,r2,r0,r1,27);
|
S2(r2,r3,r1,r0,r4); LK(r4,r3,r2,r0,r1,27);
|
S3(r4,r3,r2,r0,r1); LK(r0,r1,r3,r4,r2,28);
|
S3(r4,r3,r2,r0,r1); LK(r0,r1,r3,r4,r2,28);
|
S4(r0,r1,r3,r4,r2); LK(r1,r3,r4,r2,r0,29);
|
S4(r0,r1,r3,r4,r2); LK(r1,r3,r4,r2,r0,29);
|
S5(r1,r3,r4,r2,r0); LK(r0,r1,r3,r2,r4,30);
|
S5(r1,r3,r4,r2,r0); LK(r0,r1,r3,r2,r4,30);
|
S6(r0,r1,r3,r2,r4); LK(r3,r4,r1,r2,r0,31);
|
S6(r0,r1,r3,r2,r4); LK(r3,r4,r1,r2,r0,31);
|
S7(r3,r4,r1,r2,r0); K(r0,r1,r2,r3,32);
|
S7(r3,r4,r1,r2,r0); K(r0,r1,r2,r3,32);
|
|
|
d[0] = cpu_to_le32(r0);
|
d[0] = cpu_to_le32(r0);
|
d[1] = cpu_to_le32(r1);
|
d[1] = cpu_to_le32(r1);
|
d[2] = cpu_to_le32(r2);
|
d[2] = cpu_to_le32(r2);
|
d[3] = cpu_to_le32(r3);
|
d[3] = cpu_to_le32(r3);
|
}
|
}
|
|
|
static void decrypt(void *ctx, u8 *dst, const u8 *src)
|
static void decrypt(void *ctx, u8 *dst, const u8 *src)
|
{
|
{
|
const u32
|
const u32
|
*k = ((struct serpent_ctx *)ctx)->expkey,
|
*k = ((struct serpent_ctx *)ctx)->expkey,
|
*s = (const u32 *)src;
|
*s = (const u32 *)src;
|
u32 *d = (u32 *)dst,
|
u32 *d = (u32 *)dst,
|
r0, r1, r2, r3, r4;
|
r0, r1, r2, r3, r4;
|
|
|
r0 = le32_to_cpu(s[0]);
|
r0 = le32_to_cpu(s[0]);
|
r1 = le32_to_cpu(s[1]);
|
r1 = le32_to_cpu(s[1]);
|
r2 = le32_to_cpu(s[2]);
|
r2 = le32_to_cpu(s[2]);
|
r3 = le32_to_cpu(s[3]);
|
r3 = le32_to_cpu(s[3]);
|
|
|
K(r0,r1,r2,r3,32);
|
K(r0,r1,r2,r3,32);
|
SI7(r0,r1,r2,r3,r4); KL(r1,r3,r0,r4,r2,31);
|
SI7(r0,r1,r2,r3,r4); KL(r1,r3,r0,r4,r2,31);
|
SI6(r1,r3,r0,r4,r2); KL(r0,r2,r4,r1,r3,30);
|
SI6(r1,r3,r0,r4,r2); KL(r0,r2,r4,r1,r3,30);
|
SI5(r0,r2,r4,r1,r3); KL(r2,r3,r0,r4,r1,29);
|
SI5(r0,r2,r4,r1,r3); KL(r2,r3,r0,r4,r1,29);
|
SI4(r2,r3,r0,r4,r1); KL(r2,r0,r1,r4,r3,28);
|
SI4(r2,r3,r0,r4,r1); KL(r2,r0,r1,r4,r3,28);
|
SI3(r2,r0,r1,r4,r3); KL(r1,r2,r3,r4,r0,27);
|
SI3(r2,r0,r1,r4,r3); KL(r1,r2,r3,r4,r0,27);
|
SI2(r1,r2,r3,r4,r0); KL(r2,r0,r4,r3,r1,26);
|
SI2(r1,r2,r3,r4,r0); KL(r2,r0,r4,r3,r1,26);
|
SI1(r2,r0,r4,r3,r1); KL(r1,r0,r4,r3,r2,25);
|
SI1(r2,r0,r4,r3,r1); KL(r1,r0,r4,r3,r2,25);
|
SI0(r1,r0,r4,r3,r2); KL(r4,r2,r0,r1,r3,24);
|
SI0(r1,r0,r4,r3,r2); KL(r4,r2,r0,r1,r3,24);
|
SI7(r4,r2,r0,r1,r3); KL(r2,r1,r4,r3,r0,23);
|
SI7(r4,r2,r0,r1,r3); KL(r2,r1,r4,r3,r0,23);
|
SI6(r2,r1,r4,r3,r0); KL(r4,r0,r3,r2,r1,22);
|
SI6(r2,r1,r4,r3,r0); KL(r4,r0,r3,r2,r1,22);
|
SI5(r4,r0,r3,r2,r1); KL(r0,r1,r4,r3,r2,21);
|
SI5(r4,r0,r3,r2,r1); KL(r0,r1,r4,r3,r2,21);
|
SI4(r0,r1,r4,r3,r2); KL(r0,r4,r2,r3,r1,20);
|
SI4(r0,r1,r4,r3,r2); KL(r0,r4,r2,r3,r1,20);
|
SI3(r0,r4,r2,r3,r1); KL(r2,r0,r1,r3,r4,19);
|
SI3(r0,r4,r2,r3,r1); KL(r2,r0,r1,r3,r4,19);
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SI2(r2,r0,r1,r3,r4); KL(r0,r4,r3,r1,r2,18);
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SI2(r2,r0,r1,r3,r4); KL(r0,r4,r3,r1,r2,18);
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SI1(r0,r4,r3,r1,r2); KL(r2,r4,r3,r1,r0,17);
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SI1(r0,r4,r3,r1,r2); KL(r2,r4,r3,r1,r0,17);
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SI0(r2,r4,r3,r1,r0); KL(r3,r0,r4,r2,r1,16);
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SI0(r2,r4,r3,r1,r0); KL(r3,r0,r4,r2,r1,16);
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SI7(r3,r0,r4,r2,r1); KL(r0,r2,r3,r1,r4,15);
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SI7(r3,r0,r4,r2,r1); KL(r0,r2,r3,r1,r4,15);
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SI6(r0,r2,r3,r1,r4); KL(r3,r4,r1,r0,r2,14);
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SI6(r0,r2,r3,r1,r4); KL(r3,r4,r1,r0,r2,14);
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SI5(r3,r4,r1,r0,r2); KL(r4,r2,r3,r1,r0,13);
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SI5(r3,r4,r1,r0,r2); KL(r4,r2,r3,r1,r0,13);
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SI4(r4,r2,r3,r1,r0); KL(r4,r3,r0,r1,r2,12);
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SI4(r4,r2,r3,r1,r0); KL(r4,r3,r0,r1,r2,12);
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SI3(r4,r3,r0,r1,r2); KL(r0,r4,r2,r1,r3,11);
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SI3(r4,r3,r0,r1,r2); KL(r0,r4,r2,r1,r3,11);
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SI2(r0,r4,r2,r1,r3); KL(r4,r3,r1,r2,r0,10);
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SI2(r0,r4,r2,r1,r3); KL(r4,r3,r1,r2,r0,10);
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SI1(r4,r3,r1,r2,r0); KL(r0,r3,r1,r2,r4,9);
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SI1(r4,r3,r1,r2,r0); KL(r0,r3,r1,r2,r4,9);
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SI0(r0,r3,r1,r2,r4); KL(r1,r4,r3,r0,r2,8);
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SI0(r0,r3,r1,r2,r4); KL(r1,r4,r3,r0,r2,8);
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SI7(r1,r4,r3,r0,r2); KL(r4,r0,r1,r2,r3,7);
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SI7(r1,r4,r3,r0,r2); KL(r4,r0,r1,r2,r3,7);
|
SI6(r4,r0,r1,r2,r3); KL(r1,r3,r2,r4,r0,6);
|
SI6(r4,r0,r1,r2,r3); KL(r1,r3,r2,r4,r0,6);
|
SI5(r1,r3,r2,r4,r0); KL(r3,r0,r1,r2,r4,5);
|
SI5(r1,r3,r2,r4,r0); KL(r3,r0,r1,r2,r4,5);
|
SI4(r3,r0,r1,r2,r4); KL(r3,r1,r4,r2,r0,4);
|
SI4(r3,r0,r1,r2,r4); KL(r3,r1,r4,r2,r0,4);
|
SI3(r3,r1,r4,r2,r0); KL(r4,r3,r0,r2,r1,3);
|
SI3(r3,r1,r4,r2,r0); KL(r4,r3,r0,r2,r1,3);
|
SI2(r4,r3,r0,r2,r1); KL(r3,r1,r2,r0,r4,2);
|
SI2(r4,r3,r0,r2,r1); KL(r3,r1,r2,r0,r4,2);
|
SI1(r3,r1,r2,r0,r4); KL(r4,r1,r2,r0,r3,1);
|
SI1(r3,r1,r2,r0,r4); KL(r4,r1,r2,r0,r3,1);
|
SI0(r4,r1,r2,r0,r3); K(r2,r3,r1,r4,0);
|
SI0(r4,r1,r2,r0,r3); K(r2,r3,r1,r4,0);
|
|
|
d[0] = cpu_to_le32(r2);
|
d[0] = cpu_to_le32(r2);
|
d[1] = cpu_to_le32(r3);
|
d[1] = cpu_to_le32(r3);
|
d[2] = cpu_to_le32(r1);
|
d[2] = cpu_to_le32(r1);
|
d[3] = cpu_to_le32(r4);
|
d[3] = cpu_to_le32(r4);
|
}
|
}
|
|
|
static struct crypto_alg serpent_alg = {
|
static struct crypto_alg serpent_alg = {
|
.cra_name = "serpent",
|
.cra_name = "serpent",
|
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
|
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
|
.cra_blocksize = SERPENT_BLOCK_SIZE,
|
.cra_blocksize = SERPENT_BLOCK_SIZE,
|
.cra_ctxsize = sizeof(struct serpent_ctx),
|
.cra_ctxsize = sizeof(struct serpent_ctx),
|
.cra_module = THIS_MODULE,
|
.cra_module = THIS_MODULE,
|
.cra_list = LIST_HEAD_INIT(serpent_alg.cra_list),
|
.cra_list = LIST_HEAD_INIT(serpent_alg.cra_list),
|
.cra_u = { .cipher = {
|
.cra_u = { .cipher = {
|
.cia_min_keysize = SERPENT_MIN_KEY_SIZE,
|
.cia_min_keysize = SERPENT_MIN_KEY_SIZE,
|
.cia_max_keysize = SERPENT_MAX_KEY_SIZE,
|
.cia_max_keysize = SERPENT_MAX_KEY_SIZE,
|
.cia_setkey = setkey,
|
.cia_setkey = setkey,
|
.cia_encrypt = encrypt,
|
.cia_encrypt = encrypt,
|
.cia_decrypt = decrypt } }
|
.cia_decrypt = decrypt } }
|
};
|
};
|
|
|
static int __init init(void)
|
static int __init init(void)
|
{
|
{
|
return crypto_register_alg(&serpent_alg);
|
return crypto_register_alg(&serpent_alg);
|
}
|
}
|
|
|
static void __exit fini(void)
|
static void __exit fini(void)
|
{
|
{
|
crypto_unregister_alg(&serpent_alg);
|
crypto_unregister_alg(&serpent_alg);
|
}
|
}
|
|
|
module_init(init);
|
module_init(init);
|
module_exit(fini);
|
module_exit(fini);
|
|
|
MODULE_LICENSE("GPL");
|
MODULE_LICENSE("GPL");
|
MODULE_DESCRIPTION("Serpent Cipher Algorithm");
|
MODULE_DESCRIPTION("Serpent Cipher Algorithm");
|
MODULE_AUTHOR("Dag Arne Osvik <osvik@ii.uib.no>");
|
MODULE_AUTHOR("Dag Arne Osvik <osvik@ii.uib.no>");
|
|
|
