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text.sources.50MB.131072.bin
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>>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
x = x << 1 | x >> 31;
z = (x ^ y) & 0x55555555L;
y ^= z;
x ^= z;
y = y << 1 | y >> 31;
z = ((x >> 010) ^ y) & 0x00FF00FFL;
x ^= z << 010;
y ^= z;
z = ((y >> 002) ^ x) & 0x33333333L;
y ^= z << 002;
x ^= z;
z = ((x >> 020) ^ y) & 0x0000FFFFL;
x ^= z << 020;
y ^= z;
z = ((y >> 004) ^ x) & 0x0F0F0F0FL;
y ^= z << 004;
x ^= z;
dst[0] = x;
x >>= 8;
dst[1] = x;
x >>= 8;
dst[2] = x;
x >>= 8;
dst[3] = x;
dst[4] = y;
y >>= 8;
dst[5] = y;
y >>= 8;
dst[6] = y;
y >>= 8;
dst[7] = y;
}
static void des_small_fips_decrypt(u32 *expkey, u8 *dst, const u8 *src)
{
u32 x, y, z;
x = src[7];
x <<= 8;
x |= src[6];
x <<= 8;
x |= src[5];
x <<= 8;
x |= src[4];
y = src[3];
y <<= 8;
y |= src[2];
y <<= 8;
y |= src[1];
y <<= 8;
y |= src[0];
z = ((x >> 004) ^ y) & 0x0F0F0F0FL;
x ^= z << 004;
y ^= z;
z = ((y >> 020) ^ x) & 0x0000FFFFL;
y ^= z << 020;
x ^= z;
z = ((x >> 002) ^ y) & 0x33333333L;
x ^= z << 002;
y ^= z;
z = ((y >> 010) ^ x) & 0x00FF00FFL;
y ^= z << 010;
x ^= z;
x = x >> 1 | x << 31;
z = (x ^ y) & 0x55555555L;
y ^= z;
x ^= z;
y = y >> 1 | y << 31;
z = expkey[31];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[30];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[29];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[28];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[27];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[26];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[25];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[24];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[23];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[22];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[21];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[20];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[19];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[18];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[17];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[16];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[15];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[14];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[13];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[12];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[11];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[10];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[9];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[8];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[7];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[6];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[5];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[4];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[3];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[2];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[1];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[0];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
x = x << 1 | x >> 31;
z = (x ^ y) & 0x55555555L;
y ^= z;
x ^= z;
y = y << 1 | y >> 31;
z = ((x >> 010) ^ y) & 0x00FF00FFL;
x ^= z << 010;
y ^= z;
z = ((y >> 002) ^ x) & 0x33333333L;
y ^= z << 002;
x ^= z;
z = ((x >> 020) ^ y) & 0x0000FFFFL;
x ^= z << 020;
y ^= z;
z = ((y >> 004) ^ x) & 0x0F0F0F0FL;
y ^= z << 004;
x ^= z;
dst[0] = x;
x >>= 8;
dst[1] = x;
x >>= 8;
dst[2] = x;
x >>= 8;
dst[3] = x;
dst[4] = y;
y >>= 8;
dst[5] = y;
y >>= 8;
dst[6] = y;
y >>= 8;
dst[7] = y;
}
/*
* RFC2451: Weak key checks SHOULD be performed.
*/
static int setkey(u32 *expkey, const u8 *key, unsigned int keylen, u32 *flags)
{
const u8 *k;
u8 *b0, *b1;
u32 n, w;
u8 bits0[56], bits1[56];
n = parity[key[0]]; n <<= 4;
n |= parity[key[1]]; n <<= 4;
n |= parity[key[2]]; n <<= 4;
n |= parity[key[3]]; n <<= 4;
n |= parity[key[4]]; n <<= 4;
n |= parity[key[5]]; n <<= 4;
n |= parity[key[6]]; n <<= 4;
n |= parity[key[7]];
w = 0x88888888L;
if ((*flags & CRYPTO_TFM_REQ_WEAK_KEY)
&& !((n - (w >> 3)) & w)) { /* 1 in 10^10 keys passes this test */
if (n < 0x41415151) {
if (n < 0x31312121) {
if (n < 0x14141515) {
/* 01 01 01 01 01 01 01 01 */
if (n == 0x11111111) goto weak;
/* 01 1F 01 1F 01 0E 01 0E */
if (n == 0x13131212) goto weak;
} else {
/* 01 E0 01 E0 01 F1 01 F1 */
if (n == 0x14141515) goto weak;
/* 01 FE 01 FE 01 FE 01 FE */
if (n == 0x16161616) goto weak;
}
} else {
if (n < 0x34342525) {
/* 1F 01 1F 01 0E 01 0E 01 */
if (n == 0x31312121) goto weak;
/* 1F 1F 1F 1F 0E 0E 0E 0E (?) */
if (n == 0x33332222) goto weak;
} else {
/* 1F E0 1F E0 0E F1 0E F1 */
if (n == 0x34342525) goto weak;
/* 1F FE 1F FE 0E FE 0E FE */
if (n == 0x36362626) goto weak;
}
}
} else {
if (n < 0x61616161) {
if (n < 0x44445555) {
/* E0 01 E0 01 F1 01 F1 01 */
if (n == 0x41415151) goto weak;
/* E0 1F E0 1F F1 0E F1 0E */
if (n == 0x43435252) goto weak;
} else {
/* E0 E0 E0 E0 F1 F1 F1 F1 (?) */
if (n == 0x44445555) goto weak;
/* E0 FE E0 FE F1 FE F1 FE */
if (n == 0x46465656) goto weak;
}
} else {
if (n < 0x64646565) {
/* FE 01 FE 01 FE 01 FE 01 */
if (n == 0x61616161) goto weak;
/* FE 1F FE 1F FE 0E FE 0E */
if (n == 0x63636262) goto weak;
} else {
/* FE E0 FE E0 FE F1 FE F1 */
if (n == 0x64646565) goto weak;
/* FE FE FE FE FE FE FE FE */
if (n == 0x66666666) goto weak;
}
}
}
goto not_weak;
weak:
*flags |= CRYPTO_TFM_RES_WEAK_KEY;
return -EINVAL;
}
not_weak:
/* explode the bits */
n = 56;
b0 = bits0;
b1 = bits1;
do {
w = (256 | *key++) << 2;
do {
--n;
b1[n] = 8 & w;
w >>= 1;
b0[n] = 4 & w;
} while ( w >= 16 );
} while ( n );
/* put the bits in the correct places */
n = 16;
k = rotors;
do {
w = (b1[k[ 0 ]] | b0[k[ 1 ]]) << 4;
w |= (b1[k[ 2 ]] | b0[k[ 3 ]]) << 2;
w |= b1[k[ 4 ]] | b0[k[ 5 ]];
w <<= 8;
w |= (b1[k[ 6 ]] | b0[k[ 7 ]]) << 4;
w |= (b1[k[ 8 ]] | b0[k[ 9 ]]) << 2;
w |= b1[k[10 ]] | b0[k[11 ]];
w <<= 8;
w |= (b1[k[12 ]] | b0[k[13 ]]) << 4;
w |= (b1[k[14 ]] | b0[k[15 ]]) << 2;
w |= b1[k[16 ]] | b0[k[17 ]];
w <<= 8;
w |= (b1[k[18 ]] | b0[k[19 ]]) << 4;
w |= (b1[k[20 ]] | b0[k[21 ]]) << 2;
w |= b1[k[22 ]] | b0[k[23 ]];
expkey[0] = w;
w = (b1[k[ 0+24]] | b0[k[ 1+24]]) << 4;
w |= (b1[k[ 2+24]] | b0[k[ 3+24]]) << 2;
w |= b1[k[ 4+24]] | b0[k[ 5+24]];
w <<= 8;
w |= (b1[k[ 6+24]] | b0[k[ 7+24]]) << 4;
w |= (b1[k[ 8+24]] | b0[k[ 9+24]]) << 2;
w |= b1[k[10+24]] | b0[k[11+24]];
w <<= 8;
w |= (b1[k[12+24]] | b0[k[13+24]]) << 4;
w |= (b1[k[14+24]] | b0[k[15+24]]) << 2;
w |= b1[k[16+24]] | b0[k[17+24]];
w <<= 8;
w |= (b1[k[18+24]] | b0[k[19+24]]) << 4;
w |= (b1[k[20+24]] | b0[k[21+24]]) << 2;
w |= b1[k[22+24]] | b0[k[23+24]];
ROR(w, 4, 28); /* could be eliminated */
expkey[1] = w;
k += 48;
expkey += 2;
} while (--n);
return 0;
}
static int des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
{
return setkey(((struct des_ctx *)ctx)->expkey, key, keylen, flags);
}
static void des_encrypt(void *ctx, u8 *dst, const u8 *src)
{
des_small_fips_encrypt(((struct des_ctx *)ctx)->expkey, dst, src);
}
static void des_decrypt(void *ctx, u8 *dst, const u8 *src)
{
des_small_fips_decrypt(((struct des_ctx *)ctx)->expkey, dst, src);
}
/*
* RFC2451:
*
* For DES-EDE3, there is no known need to reject weak or
* complementation keys. Any weakness is obviated by the use of
* multiple keys.
*
* However, if the first two or last two independent 64-bit keys are
* equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
* same as DES. Implementers MUST reject keys that exhibit this
* property.
*
*/
static int des3_ede_setkey(void *ctx, const u8 *key,
unsigned int keylen, u32 *flags)
{
unsigned int i, off;
struct des3_ede_ctx *dctx = ctx;
if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
DES_KEY_SIZE))) {
*flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
return -EINVAL;
}
for (i = 0, off = 0; i < 3; i++, off += DES_EXPKEY_WORDS,
key += DES_KEY_SIZE) {
int ret = setkey(&dctx->expkey[off], key, DES_KEY_SIZE, flags);
if (ret < 0)
return ret;
}
return 0;
}
static void des3_ede_encrypt(void *ctx, u8 *dst, const u8 *src)
{
struct des3_ede_ctx *dctx = ctx;
des_small_fips_encrypt(dctx->expkey, dst, src);
des_small_fips_decrypt(&dctx->expkey[DES_EXPKEY_WORDS], dst, dst);
des_small_fips_encrypt(&dctx->expkey[DES_EXPKEY_WORDS * 2], dst, dst);
}
static void des3_ede_decrypt(void *ctx, u8 *dst, const u8 *src)
{
struct des3_ede_ctx *dctx = ctx;
des_small_fips_decrypt(&dctx->expkey[DES_EXPKEY_WORDS * 2], dst, src);
des_small_fips_encrypt(&dctx->expkey[DES_EXPKEY_WORDS], dst, dst);
des_small_fips_decrypt(dctx->expkey, dst, dst);
}
static struct crypto_alg des_alg = {
.cra_name = "des",
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = DES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct des_ctx),
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(des_alg.cra_list),
.cra_u = { .cipher = {
.cia_min_keysize = DES_KEY_SIZE,
.cia_max_keysize = DES_KEY_SIZE,
.cia_setkey = des_setkey,
.cia_encrypt = des_encrypt,
.cia_decrypt = des_decrypt } }
};
static struct crypto_alg des3_ede_alg = {
.cra_name = "des3_ede",
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct des3_ede_ctx),
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(des3_ede_alg.cra_list),
.cra_u = { .cipher = {
.cia_min_keysize = DES3_EDE_KEY_SIZE,
.cia_max_keysize = DES3_EDE_KEY_SIZE,
.cia_setkey = des3_ede_setkey,
.cia_encrypt = des3_ede_encrypt,
.cia_decrypt = des3_ede_decrypt } }
};
MODULE_ALIAS("des3_ede");
static int __init init(void)
{
int ret = 0;
ret = crypto_register_alg(&des_alg);
if (ret < 0)
goto out;
ret = crypto_register_alg(&des3_ede_alg);
if (ret < 0)
crypto_unregister_alg(&des_alg);
out:
return ret;
}
static void __exit fini(void)
{
crypto_unregister_alg(&des3_ede_alg);
crypto_unregister_alg(&des_alg);
}
module_init(init);
module_exit(fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
/*
* Cryptographic API.
*
* Function for checking keys for the DES and Tripple DES Encryption
* algorithms.
*
* Originally released as descore by Dana L. How <[email protected]>.
* Modified by Raimar Falke <[email protected]> for the Linux-Kernel.
* Derived from Cryptoapi and Nettle implementations, adapted for in-place
* scatterlist interface. Changed LGPL to GPL per section 3 of the LGPL.
*
* s390 Version:
* Copyright (C) 2003 IBM Deutschland GmbH, IBM Corporation
* Author(s): Thomas Spatzier ([email protected])
*
* Derived from "crypto/des.c"
* Copyright (c) 1992 Dana L. How.
* Copyright (c) Raimar Falke <[email protected]>
* Copyright (c) Gisle Sflensminde <[email protected]>
* Copyright (C) 2001 Niels Mvller.
* Copyright (c) 2002 James Morris <[email protected]>
*
* 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.
*
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/crypto.h>
#define ROR(d,c,o) ((d) = (d) >> (c) | (d) << (o))
static const u8 parity[] = {
8,1,0,8,0,8,8,0,0,8,8,0,8,0,2,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,3,
0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
4,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,5,0,8,0,8,8,0,0,8,8,0,8,0,6,8,
};
/*
* RFC2451: Weak key checks SHOULD be performed.
*/
int
crypto_des_check_key(const u8 *key, unsigned int keylen, u32 *flags)
{
u32 n, w;
n = parity[key[0]]; n <<= 4;
n |= parity[key[1]]; n <<= 4;
n |= parity[key[2]]; n <<= 4;
n |= parity[key[3]]; n <<= 4;
n |= parity[key[4]]; n <<= 4;
n |= parity[key[5]]; n <<= 4;
n |= parity[key[6]]; n <<= 4;
n |= parity[key[7]];
w = 0x88888888L;
if ((*flags & CRYPTO_TFM_REQ_WEAK_KEY)
&& !((n - (w >> 3)) & w)) { /* 1 in 10^10 keys passes this test */
if (n < 0x41415151) {
if (n < 0x31312121) {
if (n < 0x14141515) {
/* 01 01 01 01 01 01 01 01 */
if (n == 0x11111111) goto weak;
/* 01 1F 01 1F 01 0E 01 0E */
if (n == 0x13131212) goto weak;
} else {
/* 01 E0 01 E0 01 F1 01 F1 */
if (n == 0x14141515) goto weak;
/* 01 FE 01 FE 01 FE 01 FE */
if (n == 0x16161616) goto weak;
}
} else {
if (n < 0x34342525) {
/* 1F 01 1F 01 0E 01 0E 01 */
if (n == 0x31312121) goto weak;
/* 1F 1F 1F 1F 0E 0E 0E 0E (?) */
if (n == 0x33332222) goto weak;
} else {
/* 1F E0 1F E0 0E F1 0E F1 */
if (n == 0x34342525) goto weak;
/* 1F FE 1F FE 0E FE 0E FE */
if (n == 0x36362626) goto weak;
}
}
} else {
if (n < 0x61616161) {
if (n < 0x44445555) {
/* E0 01 E0 01 F1 01 F1 01 */
if (n == 0x41415151) goto weak;
/* E0 1F E0 1F F1 0E F1 0E */
if (n == 0x43435252) goto weak;
} else {
/* E0 E0 E0 E0 F1 F1 F1 F1 (?) */
if (n == 0x44445555) goto weak;
/* E0 FE E0 FE F1 FE F1 FE */
if (n == 0x46465656) goto weak;
}
} else {
if (n < 0x64646565) {
/* FE 01 FE 01 FE 01 FE 01 */
if (n == 0x61616161) goto weak;
/* FE 1F FE 1F FE 0E FE 0E */
if (n == 0x63636262) goto weak;
} else {
/* FE E0 FE E0 FE F1 FE F1 */
if (n == 0x64646565) goto weak;
/* FE FE FE FE FE FE FE FE */
if (n == 0x66666666) goto weak;
}
}
}
}
return 0;
weak:
*flags |= CRYPTO_TFM_RES_WEAK_KEY;
return -EINVAL;
}
EXPORT_SYMBOL(crypto_des_check_key);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Key Check function for DES & DES3 Cipher Algorithms");
/*
* Cryptographic API.
*
* z990 implementation of the DES Cipher Algorithm.
*
* Copyright (c) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Thomas Spatzier ([email protected])
*
*
* 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.
*
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <asm/scatterlist.h>
#include <linux/crypto.h>
#include "crypt_z990.h"
#include "crypto_des.h"
#define DES_BLOCK_SIZE 8
#define DES_KEY_SIZE 8
#define DES3_128_KEY_SIZE (2 * DES_KEY_SIZE)
#define DES3_128_BLOCK_SIZE DES_BLOCK_SIZE
#define DES3_192_KEY_SIZE (3 * DES_KEY_SIZE)
#define DES3_192_BLOCK_SIZE DES_BLOCK_SIZE
struct crypt_z990_des_ctx {
u8 iv[DES_BLOCK_SIZE];
u8 key[DES_KEY_SIZE];
};
struct crypt_z990_des3_128_ctx {
u8 iv[DES_BLOCK_SIZE];
u8 key[DES3_128_KEY_SIZE];
};
struct crypt_z990_des3_192_ctx {
u8 iv[DES_BLOCK_SIZE];
u8 key[DES3_192_KEY_SIZE];
};
static int
des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
{
struct crypt_z990_des_ctx *dctx;
int ret;
dctx = ctx;
//test if key is valid (not a weak key)
ret = crypto_des_check_key(key, keylen, flags);
if (ret == 0){
memcpy(dctx->key, key, keylen);
}
return ret;
}
static void
des_encrypt(void *ctx, u8 *dst, const u8 *src)
{
struct crypt_z990_des_ctx *dctx;
dctx = ctx;
crypt_z990_km(KM_DEA_ENCRYPT, dctx->key, dst, src, DES_BLOCK_SIZE);
}
static void
des_decrypt(void *ctx, u8 *dst, const u8 *src)
{
struct crypt_z990_des_ctx *dctx;
dctx = ctx;
crypt_z990_km(KM_DEA_DECRYPT, dctx->key, dst, src, DES_BLOCK_SIZE);
}
static struct crypto_alg des_alg = {
.cra_name = "des",
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = DES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypt_z990_des_ctx),
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(des_alg.cra_list),
.cra_u = { .cipher = {
.cia_min_keysize = DES_KEY_SIZE,
.cia_max_keysize = DES_KEY_SIZE,
.cia_setkey = des_setkey,
.cia_encrypt = des_encrypt,
.cia_decrypt = des_decrypt } }
};
/*
* RFC2451:
*
* For DES-EDE3, there is no known need to reject weak or
* complementation keys. Any weakness is obviated by the use of
* multiple keys.
*
* However, if the two independent 64-bit keys are equal,
* then the DES3 operation is simply the same as DES.
* Implementers MUST reject keys that exhibit this property.
*
*/
static int
des3_128_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
{
int i, ret;
struct crypt_z990_des3_128_ctx *dctx;
const u8* temp_key = key;
dctx = ctx;
if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE))) {
*flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
return -EINVAL;
}
for (i = 0; i < 2; i++, temp_key += DES_KEY_SIZE) {
ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
if (ret < 0)
return ret;
}
memcpy(dctx->key, key, keylen);
return 0;
}
static void
des3_128_encrypt(void *ctx, u8 *dst, const u8 *src)
{
struct crypt_z990_des3_128_ctx *dctx;
dctx = ctx;
crypt_z990_km(KM_TDEA_128_ENCRYPT, dctx->key, dst, (void*)src,
DES3_128_BLOCK_SIZE);
}
static void
des3_128_decrypt(void *ctx, u8 *dst, const u8 *src)
{
struct crypt_z990_des3_128_ctx *dctx;
dctx = ctx;
crypt_z990_km(KM_TDEA_128_DECRYPT, dctx->key, dst, (void*)src,
DES3_128_BLOCK_SIZE);
}
static struct crypto_alg des3_128_alg = {
.cra_name = "des3_ede128",
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = DES3_128_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypt_z990_des3_128_ctx),
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(des3_128_alg.cra_list),
.cra_u = { .cipher = {
.cia_min_keysize = DES3_128_KEY_SIZE,
.cia_max_keysize = DES3_128_KEY_SIZE,
.cia_setkey = des3_128_setkey,
.cia_encrypt = des3_128_encrypt,
.cia_decrypt = des3_128_decrypt } }
};
/*
* RFC2451:
*
* For DES-EDE3, there is no known need to reject weak or
* complementation keys. Any weakness is obviated by the use of
* multiple keys.
*
* However, if the first two or last two independent 64-bit keys are
* equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
* same as DES. Implementers MUST reject keys that exhibit this
* property.
*
*/
static int
des3_192_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
{
int i, ret;
struct crypt_z990_des3_192_ctx *dctx;
const u8* temp_key;