aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/generic/files/crypto/ocf/kirkwood/cesa/AES/mvAesAlg.c
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/kirkwood/cesa/AES/mvAesAlg.c')
-rw-r--r--target/linux/generic/files/crypto/ocf/kirkwood/cesa/AES/mvAesAlg.c317
1 files changed, 0 insertions, 317 deletions
diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/cesa/AES/mvAesAlg.c b/target/linux/generic/files/crypto/ocf/kirkwood/cesa/AES/mvAesAlg.c
deleted file mode 100644
index a65dc28932..0000000000
--- a/target/linux/generic/files/crypto/ocf/kirkwood/cesa/AES/mvAesAlg.c
+++ /dev/null
@@ -1,317 +0,0 @@
-/* rijndael-alg-ref.c v2.0 August '99
- * Reference ANSI C code
- * authors: Paulo Barreto
- * Vincent Rijmen, K.U.Leuven
- *
- * This code is placed in the public domain.
- */
-
-#include "mvOs.h"
-
-#include "mvAesAlg.h"
-
-#include "mvAesBoxes.dat"
-
-
-MV_U8 mul1(MV_U8 aa, MV_U8 bb);
-void KeyAddition(MV_U8 a[4][MAXBC], MV_U8 rk[4][MAXBC], MV_U8 BC);
-void ShiftRow128Enc(MV_U8 a[4][MAXBC]);
-void ShiftRow128Dec(MV_U8 a[4][MAXBC]);
-void Substitution(MV_U8 a[4][MAXBC], MV_U8 box[256]);
-void MixColumn(MV_U8 a[4][MAXBC], MV_U8 rk[4][MAXBC]);
-void InvMixColumn(MV_U8 a[4][MAXBC]);
-
-
-#define mul(aa, bb) (mask[bb] & Alogtable[aa + Logtable[bb]])
-
-MV_U8 mul1(MV_U8 aa, MV_U8 bb)
-{
- return mask[bb] & Alogtable[aa + Logtable[bb]];
-}
-
-
-void KeyAddition(MV_U8 a[4][MAXBC], MV_U8 rk[4][MAXBC], MV_U8 BC)
-{
- /* Exor corresponding text input and round key input bytes
- */
- ((MV_U32*)(&(a[0][0])))[0] ^= ((MV_U32*)(&(rk[0][0])))[0];
- ((MV_U32*)(&(a[1][0])))[0] ^= ((MV_U32*)(&(rk[1][0])))[0];
- ((MV_U32*)(&(a[2][0])))[0] ^= ((MV_U32*)(&(rk[2][0])))[0];
- ((MV_U32*)(&(a[3][0])))[0] ^= ((MV_U32*)(&(rk[3][0])))[0];
-
-}
-
-void ShiftRow128Enc(MV_U8 a[4][MAXBC]) {
- /* Row 0 remains unchanged
- * The other three rows are shifted a variable amount
- */
- MV_U8 tmp[MAXBC];
-
- tmp[0] = a[1][1];
- tmp[1] = a[1][2];
- tmp[2] = a[1][3];
- tmp[3] = a[1][0];
-
- ((MV_U32*)(&(a[1][0])))[0] = ((MV_U32*)(&(tmp[0])))[0];
- /*
- a[1][0] = tmp[0];
- a[1][1] = tmp[1];
- a[1][2] = tmp[2];
- a[1][3] = tmp[3];
- */
- tmp[0] = a[2][2];
- tmp[1] = a[2][3];
- tmp[2] = a[2][0];
- tmp[3] = a[2][1];
-
- ((MV_U32*)(&(a[2][0])))[0] = ((MV_U32*)(&(tmp[0])))[0];
- /*
- a[2][0] = tmp[0];
- a[2][1] = tmp[1];
- a[2][2] = tmp[2];
- a[2][3] = tmp[3];
- */
- tmp[0] = a[3][3];
- tmp[1] = a[3][0];
- tmp[2] = a[3][1];
- tmp[3] = a[3][2];
-
- ((MV_U32*)(&(a[3][0])))[0] = ((MV_U32*)(&(tmp[0])))[0];
- /*
- a[3][0] = tmp[0];
- a[3][1] = tmp[1];
- a[3][2] = tmp[2];
- a[3][3] = tmp[3];
- */
-}
-
-void ShiftRow128Dec(MV_U8 a[4][MAXBC]) {
- /* Row 0 remains unchanged
- * The other three rows are shifted a variable amount
- */
- MV_U8 tmp[MAXBC];
-
- tmp[0] = a[1][3];
- tmp[1] = a[1][0];
- tmp[2] = a[1][1];
- tmp[3] = a[1][2];
-
- ((MV_U32*)(&(a[1][0])))[0] = ((MV_U32*)(&(tmp[0])))[0];
- /*
- a[1][0] = tmp[0];
- a[1][1] = tmp[1];
- a[1][2] = tmp[2];
- a[1][3] = tmp[3];
- */
-
- tmp[0] = a[2][2];
- tmp[1] = a[2][3];
- tmp[2] = a[2][0];
- tmp[3] = a[2][1];
-
- ((MV_U32*)(&(a[2][0])))[0] = ((MV_U32*)(&(tmp[0])))[0];
- /*
- a[2][0] = tmp[0];
- a[2][1] = tmp[1];
- a[2][2] = tmp[2];
- a[2][3] = tmp[3];
- */
-
- tmp[0] = a[3][1];
- tmp[1] = a[3][2];
- tmp[2] = a[3][3];
- tmp[3] = a[3][0];
-
- ((MV_U32*)(&(a[3][0])))[0] = ((MV_U32*)(&(tmp[0])))[0];
- /*
- a[3][0] = tmp[0];
- a[3][1] = tmp[1];
- a[3][2] = tmp[2];
- a[3][3] = tmp[3];
- */
-}
-
-void Substitution(MV_U8 a[4][MAXBC], MV_U8 box[256]) {
- /* Replace every byte of the input by the byte at that place
- * in the nonlinear S-box
- */
- int i, j;
-
- for(i = 0; i < 4; i++)
- for(j = 0; j < 4; j++) a[i][j] = box[a[i][j]] ;
-}
-
-void MixColumn(MV_U8 a[4][MAXBC], MV_U8 rk[4][MAXBC]) {
- /* Mix the four bytes of every column in a linear way
- */
- MV_U8 b[4][MAXBC];
- int i, j;
-
- for(j = 0; j < 4; j++){
- b[0][j] = mul(25,a[0][j]) ^ mul(1,a[1][j]) ^ a[2][j] ^ a[3][j];
- b[1][j] = mul(25,a[1][j]) ^ mul(1,a[2][j]) ^ a[3][j] ^ a[0][j];
- b[2][j] = mul(25,a[2][j]) ^ mul(1,a[3][j]) ^ a[0][j] ^ a[1][j];
- b[3][j] = mul(25,a[3][j]) ^ mul(1,a[0][j]) ^ a[1][j] ^ a[2][j];
- }
- for(i = 0; i < 4; i++)
- /*for(j = 0; j < BC; j++) a[i][j] = b[i][j];*/
- ((MV_U32*)(&(a[i][0])))[0] = ((MV_U32*)(&(b[i][0])))[0] ^ ((MV_U32*)(&(rk[i][0])))[0];;
-}
-
-void InvMixColumn(MV_U8 a[4][MAXBC]) {
- /* Mix the four bytes of every column in a linear way
- * This is the opposite operation of Mixcolumn
- */
- MV_U8 b[4][MAXBC];
- int i, j;
-
- for(j = 0; j < 4; j++){
- b[0][j] = mul(223,a[0][j]) ^ mul(104,a[1][j]) ^ mul(238,a[2][j]) ^ mul(199,a[3][j]);
- b[1][j] = mul(223,a[1][j]) ^ mul(104,a[2][j]) ^ mul(238,a[3][j]) ^ mul(199,a[0][j]);
- b[2][j] = mul(223,a[2][j]) ^ mul(104,a[3][j]) ^ mul(238,a[0][j]) ^ mul(199,a[1][j]);
- b[3][j] = mul(223,a[3][j]) ^ mul(104,a[0][j]) ^ mul(238,a[1][j]) ^ mul(199,a[2][j]);
- }
- for(i = 0; i < 4; i++)
- /*for(j = 0; j < BC; j++) a[i][j] = b[i][j];*/
- ((MV_U32*)(&(a[i][0])))[0] = ((MV_U32*)(&(b[i][0])))[0];
-}
-
-int rijndaelKeySched (MV_U8 k[4][MAXKC], int keyBits, int blockBits, MV_U8 W[MAXROUNDS+1][4][MAXBC])
-{
- /* Calculate the necessary round keys
- * The number of calculations depends on keyBits and blockBits
- */
- int KC, BC, ROUNDS;
- int i, j, t, rconpointer = 0;
- MV_U8 tk[4][MAXKC];
-
- switch (keyBits) {
- case 128: KC = 4; break;
- case 192: KC = 6; break;
- case 256: KC = 8; break;
- default : return (-1);
- }
-
- switch (blockBits) {
- case 128: BC = 4; break;
- case 192: BC = 6; break;
- case 256: BC = 8; break;
- default : return (-2);
- }
-
- switch (keyBits >= blockBits ? keyBits : blockBits) {
- case 128: ROUNDS = 10; break;
- case 192: ROUNDS = 12; break;
- case 256: ROUNDS = 14; break;
- default : return (-3); /* this cannot happen */
- }
-
-
- for(j = 0; j < KC; j++)
- for(i = 0; i < 4; i++)
- tk[i][j] = k[i][j];
- t = 0;
- /* copy values into round key array */
- for(j = 0; (j < KC) && (t < (ROUNDS+1)*BC); j++, t++)
- for(i = 0; i < 4; i++) W[t / BC][i][t % BC] = tk[i][j];
-
- while (t < (ROUNDS+1)*BC) { /* while not enough round key material calculated */
- /* calculate new values */
- for(i = 0; i < 4; i++)
- tk[i][0] ^= S[tk[(i+1)%4][KC-1]];
- tk[0][0] ^= rcon[rconpointer++];
-
- if (KC != 8)
- for(j = 1; j < KC; j++)
- for(i = 0; i < 4; i++) tk[i][j] ^= tk[i][j-1];
- else {
- for(j = 1; j < KC/2; j++)
- for(i = 0; i < 4; i++) tk[i][j] ^= tk[i][j-1];
- for(i = 0; i < 4; i++) tk[i][KC/2] ^= S[tk[i][KC/2 - 1]];
- for(j = KC/2 + 1; j < KC; j++)
- for(i = 0; i < 4; i++) tk[i][j] ^= tk[i][j-1];
- }
- /* copy values into round key array */
- for(j = 0; (j < KC) && (t < (ROUNDS+1)*BC); j++, t++)
- for(i = 0; i < 4; i++) W[t / BC][i][t % BC] = tk[i][j];
- }
-
- return 0;
-}
-
-
-
-int rijndaelEncrypt128(MV_U8 a[4][MAXBC], MV_U8 rk[MAXROUNDS+1][4][MAXBC], int rounds)
-{
- /* Encryption of one block.
- */
- int r, BC, ROUNDS;
-
- BC = 4;
- ROUNDS = rounds;
-
- /* begin with a key addition
- */
-
- KeyAddition(a,rk[0],BC);
-
- /* ROUNDS-1 ordinary rounds
- */
- for(r = 1; r < ROUNDS; r++) {
- Substitution(a,S);
- ShiftRow128Enc(a);
- MixColumn(a, rk[r]);
- /*KeyAddition(a,rk[r],BC);*/
- }
-
- /* Last round is special: there is no MixColumn
- */
- Substitution(a,S);
- ShiftRow128Enc(a);
- KeyAddition(a,rk[ROUNDS],BC);
-
- return 0;
-}
-
-
-int rijndaelDecrypt128(MV_U8 a[4][MAXBC], MV_U8 rk[MAXROUNDS+1][4][MAXBC], int rounds)
-{
- int r, BC, ROUNDS;
-
- BC = 4;
- ROUNDS = rounds;
-
- /* To decrypt: apply the inverse operations of the encrypt routine,
- * in opposite order
- *
- * (KeyAddition is an involution: it 's equal to its inverse)
- * (the inverse of Substitution with table S is Substitution with the inverse table of S)
- * (the inverse of Shiftrow is Shiftrow over a suitable distance)
- */
-
- /* First the special round:
- * without InvMixColumn
- * with extra KeyAddition
- */
- KeyAddition(a,rk[ROUNDS],BC);
- ShiftRow128Dec(a);
- Substitution(a,Si);
-
- /* ROUNDS-1 ordinary rounds
- */
- for(r = ROUNDS-1; r > 0; r--) {
- KeyAddition(a,rk[r],BC);
- InvMixColumn(a);
- ShiftRow128Dec(a);
- Substitution(a,Si);
-
- }
-
- /* End with the extra key addition
- */
-
- KeyAddition(a,rk[0],BC);
-
- return 0;
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-29 05:03:38 +0000