security/nss/lib/freebl/seed.h@b8a032363ba2 (annotated)
security/nss/lib/freebl/seed.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | #ifndef HEADER_SEED_H |
| michael@0 | 6 | #define HEADER_SEED_H |
| michael@0 | 7 | |
| michael@0 | 8 | #include <string.h> |
| michael@0 | 9 | #include "blapi.h" |
| michael@0 | 10 | |
| michael@0 | 11 | #if !defined(NO_SYS_TYPES_H) |
| michael@0 | 12 | # include <sys/types.h> |
| michael@0 | 13 | #endif |
| michael@0 | 14 | |
| michael@0 | 15 | typedef PRUint32 seed_word; |
| michael@0 | 16 | |
| michael@0 | 17 | #define G_FUNC(v) \ |
| michael@0 | 18 | SS[0][((v) & 0xff)] ^ \ |
| michael@0 | 19 | SS[1][((v)>> 8 & 0xff)] ^ \ |
| michael@0 | 20 | SS[2][((v)>>16 & 0xff)] ^ \ |
| michael@0 | 21 | SS[3][((v)>>24 & 0xff)] |
| michael@0 | 22 | |
| michael@0 | 23 | #define char2word(c, i) \ |
| michael@0 | 24 | (i) = ((((seed_word)((c)[0])) << 24) | \ |
| michael@0 | 25 | (((seed_word)((c)[1])) << 16) | \ |
| michael@0 | 26 | (((seed_word)((c)[2])) << 8) | \ |
| michael@0 | 27 | ((seed_word)((c)[3]))) |
| michael@0 | 28 | |
| michael@0 | 29 | #define word2char(l, c) \ |
| michael@0 | 30 | *((c)+0) = (unsigned char)((l)>>24); \ |
| michael@0 | 31 | *((c)+1) = (unsigned char)((l)>>16); \ |
| michael@0 | 32 | *((c)+2) = (unsigned char)((l)>> 8); \ |
| michael@0 | 33 | *((c)+3) = (unsigned char)((l) ) |
| michael@0 | 34 | |
| michael@0 | 35 | #define KEYSCHEDULE_UPDATE0(T0, T1, K0, K1, K2, K3, KC) \ |
| michael@0 | 36 | (T0) = (K2); \ |
| michael@0 | 37 | (K2) = (((K2)<<8) ^ ((K3)>>24)); \ |
| michael@0 | 38 | (K3) = (((K3)<<8) ^ ((T0)>>24)); \ |
| michael@0 | 39 | (T0) = ((K0) + (K2) - (KC)); \ |
| michael@0 | 40 | (T1) = ((K1) + (KC) - (K3)) |
| michael@0 | 41 | |
| michael@0 | 42 | #define KEYSCHEDULE_UPDATE1(T0, T1, K0, K1, K2, K3, KC) \ |
| michael@0 | 43 | (T0) = (K0); \ |
| michael@0 | 44 | (K0) = (((K0)>>8) ^ ((K1)<<24)); \ |
| michael@0 | 45 | (K1) = (((K1)>>8) ^ ((T0)<<24)); \ |
| michael@0 | 46 | (T0) = ((K0) + (K2) - (KC)); \ |
| michael@0 | 47 | (T1) = ((K1) + (KC) - (K3)) |
| michael@0 | 48 | |
| michael@0 | 49 | #define KEYUPDATE_TEMP(T0, T1, K) \ |
| michael@0 | 50 | (K)[0] = G_FUNC((T0)); \ |
| michael@0 | 51 | (K)[1] = G_FUNC((T1)) |
| michael@0 | 52 | |
| michael@0 | 53 | #define XOR_SEEDBLOCK(DST, SRC) \ |
| michael@0 | 54 | (DST)[0] ^= (SRC)[0]; \ |
| michael@0 | 55 | (DST)[1] ^= (SRC)[1]; \ |
| michael@0 | 56 | (DST)[2] ^= (SRC)[2]; \ |
| michael@0 | 57 | (DST)[3] ^= (SRC)[3] |
| michael@0 | 58 | |
| michael@0 | 59 | #define MOV_SEEDBLOCK(DST, SRC) \ |
| michael@0 | 60 | (DST)[0] = (SRC)[0]; \ |
| michael@0 | 61 | (DST)[1] = (SRC)[1]; \ |
| michael@0 | 62 | (DST)[2] = (SRC)[2]; \ |
| michael@0 | 63 | (DST)[3] = (SRC)[3] |
| michael@0 | 64 | |
| michael@0 | 65 | # define CHAR2WORD(C, I) \ |
| michael@0 | 66 | char2word((C), (I)[0]); \ |
| michael@0 | 67 | char2word((C)+4, (I)[1]); \ |
| michael@0 | 68 | char2word((C)+8, (I)[2]); \ |
| michael@0 | 69 | char2word((C)+12, (I)[3]) |
| michael@0 | 70 | |
| michael@0 | 71 | # define WORD2CHAR(I, C) \ |
| michael@0 | 72 | word2char((I)[0], (C)); \ |
| michael@0 | 73 | word2char((I)[1], (C+4)); \ |
| michael@0 | 74 | word2char((I)[2], (C+8)); \ |
| michael@0 | 75 | word2char((I)[3], (C+12)) |
| michael@0 | 76 | |
| michael@0 | 77 | # define E_SEED(T0, T1, X1, X2, X3, X4, rbase) \ |
| michael@0 | 78 | (T0) = (X3) ^ (ks->data)[(rbase)]; \ |
| michael@0 | 79 | (T1) = (X4) ^ (ks->data)[(rbase)+1]; \ |
| michael@0 | 80 | (T1) ^= (T0); \ |
| michael@0 | 81 | (T1) = G_FUNC(T1); \ |
| michael@0 | 82 | (T0) += (T1); \ |
| michael@0 | 83 | (T0) = G_FUNC(T0); \ |
| michael@0 | 84 | (T1) += (T0); \ |
| michael@0 | 85 | (T1) = G_FUNC(T1); \ |
| michael@0 | 86 | (T0) += (T1); \ |
| michael@0 | 87 | (X1) ^= (T0); \ |
| michael@0 | 88 | (X2) ^= (T1) |
| michael@0 | 89 | |
| michael@0 | 90 | |
| michael@0 | 91 | #ifdef __cplusplus |
| michael@0 | 92 | extern "C" { |
| michael@0 | 93 | #endif |
| michael@0 | 94 | |
| michael@0 | 95 | typedef struct seed_key_st { |
| michael@0 | 96 | PRUint32 data[32]; |
| michael@0 | 97 | } SEED_KEY_SCHEDULE; |
| michael@0 | 98 | |
| michael@0 | 99 | |
| michael@0 | 100 | |
| michael@0 | 101 | struct SEEDContextStr { |
| michael@0 | 102 | unsigned char iv[SEED_BLOCK_SIZE]; |
| michael@0 | 103 | SEED_KEY_SCHEDULE ks; |
| michael@0 | 104 | int mode; |
| michael@0 | 105 | unsigned int encrypt; |
| michael@0 | 106 | }; |
| michael@0 | 107 | |
| michael@0 | 108 | void SEED_set_key(const unsigned char rawkey[SEED_KEY_LENGTH], |
| michael@0 | 109 | SEED_KEY_SCHEDULE *ks); |
| michael@0 | 110 | |
| michael@0 | 111 | void SEED_encrypt(const unsigned char s[SEED_BLOCK_SIZE], |
| michael@0 | 112 | unsigned char d[SEED_BLOCK_SIZE], |
| michael@0 | 113 | const SEED_KEY_SCHEDULE *ks); |
| michael@0 | 114 | void SEED_decrypt(const unsigned char s[SEED_BLOCK_SIZE], |
| michael@0 | 115 | unsigned char d[SEED_BLOCK_SIZE], |
| michael@0 | 116 | const SEED_KEY_SCHEDULE *ks); |
| michael@0 | 117 | |
| michael@0 | 118 | void SEED_ecb_encrypt(const unsigned char *in, unsigned char *out, |
| michael@0 | 119 | const SEED_KEY_SCHEDULE *ks, int enc); |
| michael@0 | 120 | void SEED_cbc_encrypt(const unsigned char *in, unsigned char *out, |
| michael@0 | 121 | size_t len, const SEED_KEY_SCHEDULE *ks, |
| michael@0 | 122 | unsigned char ivec[SEED_BLOCK_SIZE], int enc); |
| michael@0 | 123 | |
| michael@0 | 124 | #ifdef __cplusplus |
| michael@0 | 125 | } |
| michael@0 | 126 | #endif |
| michael@0 | 127 | |
| michael@0 | 128 | #endif /* HEADER_SEED_H */ |
