1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/security/nss/lib/freebl/seed.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,128 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#ifndef HEADER_SEED_H
1.9 +#define HEADER_SEED_H
1.10 +
1.11 +#include <string.h>
1.12 +#include "blapi.h"
1.13 +
1.14 +#if !defined(NO_SYS_TYPES_H)
1.15 +# include <sys/types.h>
1.16 +#endif
1.17 +
1.18 +typedef PRUint32 seed_word;
1.19 +
1.20 +#define G_FUNC(v) \
1.21 + SS[0][((v) & 0xff)] ^ \
1.22 + SS[1][((v)>> 8 & 0xff)] ^ \
1.23 + SS[2][((v)>>16 & 0xff)] ^ \
1.24 + SS[3][((v)>>24 & 0xff)]
1.25 +
1.26 +#define char2word(c, i) \
1.27 + (i) = ((((seed_word)((c)[0])) << 24) | \
1.28 + (((seed_word)((c)[1])) << 16) | \
1.29 + (((seed_word)((c)[2])) << 8) | \
1.30 + ((seed_word)((c)[3])))
1.31 +
1.32 +#define word2char(l, c) \
1.33 + *((c)+0) = (unsigned char)((l)>>24); \
1.34 + *((c)+1) = (unsigned char)((l)>>16); \
1.35 + *((c)+2) = (unsigned char)((l)>> 8); \
1.36 + *((c)+3) = (unsigned char)((l) )
1.37 +
1.38 +#define KEYSCHEDULE_UPDATE0(T0, T1, K0, K1, K2, K3, KC) \
1.39 + (T0) = (K2); \
1.40 + (K2) = (((K2)<<8) ^ ((K3)>>24)); \
1.41 + (K3) = (((K3)<<8) ^ ((T0)>>24)); \
1.42 + (T0) = ((K0) + (K2) - (KC)); \
1.43 + (T1) = ((K1) + (KC) - (K3))
1.44 +
1.45 +#define KEYSCHEDULE_UPDATE1(T0, T1, K0, K1, K2, K3, KC) \
1.46 + (T0) = (K0); \
1.47 + (K0) = (((K0)>>8) ^ ((K1)<<24)); \
1.48 + (K1) = (((K1)>>8) ^ ((T0)<<24)); \
1.49 + (T0) = ((K0) + (K2) - (KC)); \
1.50 + (T1) = ((K1) + (KC) - (K3))
1.51 +
1.52 +#define KEYUPDATE_TEMP(T0, T1, K) \
1.53 + (K)[0] = G_FUNC((T0)); \
1.54 + (K)[1] = G_FUNC((T1))
1.55 +
1.56 +#define XOR_SEEDBLOCK(DST, SRC) \
1.57 + (DST)[0] ^= (SRC)[0]; \
1.58 + (DST)[1] ^= (SRC)[1]; \
1.59 + (DST)[2] ^= (SRC)[2]; \
1.60 + (DST)[3] ^= (SRC)[3]
1.61 +
1.62 +#define MOV_SEEDBLOCK(DST, SRC) \
1.63 + (DST)[0] = (SRC)[0]; \
1.64 + (DST)[1] = (SRC)[1]; \
1.65 + (DST)[2] = (SRC)[2]; \
1.66 + (DST)[3] = (SRC)[3]
1.67 +
1.68 +# define CHAR2WORD(C, I) \
1.69 + char2word((C), (I)[0]); \
1.70 + char2word((C)+4, (I)[1]); \
1.71 + char2word((C)+8, (I)[2]); \
1.72 + char2word((C)+12, (I)[3])
1.73 +
1.74 +# define WORD2CHAR(I, C) \
1.75 + word2char((I)[0], (C)); \
1.76 + word2char((I)[1], (C+4)); \
1.77 + word2char((I)[2], (C+8)); \
1.78 + word2char((I)[3], (C+12))
1.79 +
1.80 +# define E_SEED(T0, T1, X1, X2, X3, X4, rbase) \
1.81 + (T0) = (X3) ^ (ks->data)[(rbase)]; \
1.82 + (T1) = (X4) ^ (ks->data)[(rbase)+1]; \
1.83 + (T1) ^= (T0); \
1.84 + (T1) = G_FUNC(T1); \
1.85 + (T0) += (T1); \
1.86 + (T0) = G_FUNC(T0); \
1.87 + (T1) += (T0); \
1.88 + (T1) = G_FUNC(T1); \
1.89 + (T0) += (T1); \
1.90 + (X1) ^= (T0); \
1.91 + (X2) ^= (T1)
1.92 +
1.93 +
1.94 +#ifdef __cplusplus
1.95 +extern "C" {
1.96 +#endif
1.97 +
1.98 +typedef struct seed_key_st {
1.99 + PRUint32 data[32];
1.100 +} SEED_KEY_SCHEDULE;
1.101 +
1.102 +
1.103 +
1.104 +struct SEEDContextStr {
1.105 + unsigned char iv[SEED_BLOCK_SIZE];
1.106 + SEED_KEY_SCHEDULE ks;
1.107 + int mode;
1.108 + unsigned int encrypt;
1.109 +};
1.110 +
1.111 +void SEED_set_key(const unsigned char rawkey[SEED_KEY_LENGTH],
1.112 + SEED_KEY_SCHEDULE *ks);
1.113 +
1.114 +void SEED_encrypt(const unsigned char s[SEED_BLOCK_SIZE],
1.115 + unsigned char d[SEED_BLOCK_SIZE],
1.116 + const SEED_KEY_SCHEDULE *ks);
1.117 +void SEED_decrypt(const unsigned char s[SEED_BLOCK_SIZE],
1.118 + unsigned char d[SEED_BLOCK_SIZE],
1.119 + const SEED_KEY_SCHEDULE *ks);
1.120 +
1.121 +void SEED_ecb_encrypt(const unsigned char *in, unsigned char *out,
1.122 + const SEED_KEY_SCHEDULE *ks, int enc);
1.123 +void SEED_cbc_encrypt(const unsigned char *in, unsigned char *out,
1.124 + size_t len, const SEED_KEY_SCHEDULE *ks,
1.125 + unsigned char ivec[SEED_BLOCK_SIZE], int enc);
1.126 +
1.127 +#ifdef __cplusplus
1.128 +}
1.129 +#endif
1.130 +
1.131 +#endif /* HEADER_SEED_H */
