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396 lines
7.5 KiB
Common Lisp
396 lines
7.5 KiB
Common Lisp
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#define NEW_SIMD_CODE
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#ifdef KERNEL_STATIC
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#include "inc_vendor.h"
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#include "inc_types.h"
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#include "inc_platform.cl"
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#include "inc_common.cl"
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#include "inc_simd.cl"
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#endif
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typedef struct chacha20
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{
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u32 iv[2];
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u32 plain[2];
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u32 position[2];
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u32 offset;
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} chacha20_t;
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#define CHACHA_CONST_00 0x61707865
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#define CHACHA_CONST_01 0x3320646e
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#define CHACHA_CONST_02 0x79622d32
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#define CHACHA_CONST_03 0x6b206574
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#define QR(a, b, c, d) \
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do { \
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x[a] = x[a] + x[b]; \
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x[d] = hc_rotl32(x[d] ^ x[a], 16); \
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x[c] = x[c] + x[d]; \
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x[b] = hc_rotl32(x[b] ^ x[c], 12); \
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x[a] = x[a] + x[b]; \
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x[d] = hc_rotl32(x[d] ^ x[a], 8); \
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x[c] = x[c] + x[d]; \
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x[b] = hc_rotl32(x[b] ^ x[c], 7); \
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} while (0);
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DECLSPEC void chacha20_transform (const u32x *w0, const u32x *w1, const u32 *position, const u32 offset, const u32 *iv, const u32 *plain, u32x *digest)
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{
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/**
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* Key expansion
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*/
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u32x ctx[16];
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ctx[ 0] = CHACHA_CONST_00;
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ctx[ 1] = CHACHA_CONST_01;
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ctx[ 2] = CHACHA_CONST_02;
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ctx[ 3] = CHACHA_CONST_03;
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ctx[ 4] = w0[0];
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ctx[ 5] = w0[1];
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ctx[ 6] = w0[2];
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ctx[ 7] = w0[3];
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ctx[ 8] = w1[0];
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ctx[ 9] = w1[1];
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ctx[10] = w1[2];
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ctx[11] = w1[3];
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ctx[12] = position[0];
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ctx[13] = position[1];
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ctx[14] = iv[1];
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ctx[15] = iv[0];
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/**
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* Generate 64 byte keystream
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*/
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u32x x[32];
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x[ 0] = ctx[ 0];
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x[ 1] = ctx[ 1];
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x[ 2] = ctx[ 2];
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x[ 3] = ctx[ 3];
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x[ 4] = ctx[ 4];
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x[ 5] = ctx[ 5];
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x[ 6] = ctx[ 6];
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x[ 7] = ctx[ 7];
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x[ 8] = ctx[ 8];
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x[ 9] = ctx[ 9];
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x[10] = ctx[10];
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x[11] = ctx[11];
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x[12] = ctx[12];
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x[13] = ctx[13];
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x[14] = ctx[14];
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x[15] = ctx[15];
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#pragma unroll
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for (u8 i = 0; i < 10; i++)
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{
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/* Column round */
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QR(0, 4, 8, 12);
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QR(1, 5, 9, 13);
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QR(2, 6, 10, 14);
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QR(3, 7, 11, 15);
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/* Diagonal round */
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QR(0, 5, 10, 15);
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QR(1, 6, 11, 12);
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QR(2, 7, 8, 13);
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QR(3, 4, 9, 14);
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}
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x[ 0] += ctx[ 0];
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x[ 1] += ctx[ 1];
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x[ 2] += ctx[ 2];
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x[ 3] += ctx[ 3];
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x[ 4] += ctx[ 4];
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x[ 5] += ctx[ 5];
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x[ 6] += ctx[ 6];
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x[ 7] += ctx[ 7];
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x[ 8] += ctx[ 8];
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x[ 9] += ctx[ 9];
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x[10] += ctx[10];
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x[11] += ctx[11];
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x[12] += ctx[12];
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x[13] += ctx[13];
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x[14] += ctx[14];
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x[15] += ctx[15];
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if (offset > 56)
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{
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/**
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* Generate a second 64 byte keystream
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*/
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ctx[12]++;
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if (all(ctx[12] == 0)) ctx[13]++;
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x[16] = ctx[ 0];
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x[17] = ctx[ 1];
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x[18] = ctx[ 2];
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x[19] = ctx[ 3];
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x[20] = ctx[ 4];
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x[21] = ctx[ 5];
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x[22] = ctx[ 6];
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x[23] = ctx[ 7];
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x[24] = ctx[ 8];
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x[25] = ctx[ 9];
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x[26] = ctx[10];
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x[27] = ctx[11];
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x[28] = ctx[12];
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x[29] = ctx[13];
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x[30] = ctx[14];
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x[31] = ctx[15];
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#pragma unroll
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for (u8 i = 0; i < 10; i++)
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{
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/* Column round */
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QR(16, 20, 24, 28);
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QR(17, 21, 25, 29);
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QR(18, 22, 26, 30);
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QR(19, 23, 27, 31);
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/* Diagonal round */
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QR(16, 21, 26, 31);
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QR(17, 22, 27, 28);
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QR(18, 23, 24, 29);
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QR(19, 20, 25, 30);
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}
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x[16] += ctx[ 0];
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x[17] += ctx[ 1];
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x[18] += ctx[ 2];
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x[19] += ctx[ 3];
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x[20] += ctx[ 4];
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x[21] += ctx[ 5];
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x[22] += ctx[ 6];
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x[23] += ctx[ 7];
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x[24] += ctx[ 8];
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x[25] += ctx[ 9];
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x[26] += ctx[10];
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x[27] += ctx[11];
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x[28] += ctx[12];
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x[29] += ctx[13];
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x[30] += ctx[14];
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x[31] += ctx[15];
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}
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/**
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* Encrypt plaintext with keystream
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*/
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const u32 index = offset / 4;
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const u32 remain = offset % 4;
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digest[0] = plain[1];
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digest[1] = plain[0];
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if (remain > 0)
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{
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digest[1] ^= x[index + 0] >> ( 0 + remain * 8);
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digest[1] ^= x[index + 1] << (32 - remain * 8);
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digest[0] ^= x[index + 1] >> ( 0 + remain * 8);
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digest[0] ^= x[index + 2] << (32 - remain * 8);
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}
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else
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{
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digest[1] ^= x[index + 0];
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digest[0] ^= x[index + 1];
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}
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}
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KERNEL_FQ void m15400_m04 (KERN_ATTR_VECTOR_ESALT (chacha20_t))
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{
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// fixed size 32
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}
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KERNEL_FQ void m15400_m08 (KERN_ATTR_VECTOR_ESALT (chacha20_t))
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{
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// fixed size 32
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}
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KERNEL_FQ void m15400_m16 (KERN_ATTR_VECTOR_ESALT (chacha20_t))
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{
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/**
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* modifier
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*/
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const u64 gid = get_global_id (0);
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const u64 lid = get_local_id (0);
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u32 w0[4];
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u32 w1[4];
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w0[0] = pws[gid].i[0];
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w0[1] = pws[gid].i[1];
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w0[2] = pws[gid].i[2];
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w0[3] = pws[gid].i[3];
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w1[0] = pws[gid].i[4];
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w1[1] = pws[gid].i[5];
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w1[2] = pws[gid].i[6];
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w1[3] = pws[gid].i[7];
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/**
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* Salt prep
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*/
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u32 iv[2];
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iv[0] = esalt_bufs[digests_offset].iv[0];
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iv[1] = esalt_bufs[digests_offset].iv[1];
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u32 plain[2];
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plain[0] = esalt_bufs[digests_offset].plain[0];
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plain[1] = esalt_bufs[digests_offset].plain[1];
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u32 position[2];
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position[0] = esalt_bufs[digests_offset].position[0];
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position[1] = esalt_bufs[digests_offset].position[1];
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u32 offset = esalt_bufs[digests_offset].offset;
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/**
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* loop
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*/
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u32 w0l = pws[gid].i[0];
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for (u32 il_pos = 0; il_pos < il_cnt; il_pos += VECT_SIZE)
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{
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const u32x w0r = words_buf_r[il_pos / VECT_SIZE];
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const u32x w0x = w0l | w0r;
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u32x w0_t[4];
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u32x w1_t[4];
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w0_t[0] = w0x;
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w0_t[1] = w0[1];
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w0_t[2] = w0[2];
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w0_t[3] = w0[3];
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w1_t[0] = w1[0];
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w1_t[1] = w1[1];
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w1_t[2] = w1[2];
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w1_t[3] = w1[3];
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u32x digest[4] = { 0 };
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chacha20_transform (w0_t, w1_t, position, offset, iv, plain, digest);
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const u32x r0 = digest[0];
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const u32x r1 = digest[1];
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const u32x r2 = digest[2];
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const u32x r3 = digest[3];
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COMPARE_M_SIMD(r0, r1, r2, r3);
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}
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}
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KERNEL_FQ void m15400_s04 (KERN_ATTR_VECTOR_ESALT (chacha20_t))
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{
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// fixed size 32
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}
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KERNEL_FQ void m15400_s08 (KERN_ATTR_VECTOR_ESALT (chacha20_t))
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{
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// fixed size 32
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}
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KERNEL_FQ void m15400_s16 (KERN_ATTR_VECTOR_ESALT (chacha20_t))
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{
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/**
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* modifier
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*/
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const u64 gid = get_global_id (0);
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const u64 lid = get_local_id (0);
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u32 w0[4];
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u32 w1[4];
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w0[0] = pws[gid].i[0];
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w0[1] = pws[gid].i[1];
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w0[2] = pws[gid].i[2];
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w0[3] = pws[gid].i[3];
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w1[0] = pws[gid].i[4];
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w1[1] = pws[gid].i[5];
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w1[2] = pws[gid].i[6];
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w1[3] = pws[gid].i[7];
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/**
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* Salt prep
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*/
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u32 iv[2];
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iv[0] = esalt_bufs[digests_offset].iv[0];
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iv[1] = esalt_bufs[digests_offset].iv[1];
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u32 plain[2];
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plain[0] = esalt_bufs[digests_offset].plain[0];
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plain[1] = esalt_bufs[digests_offset].plain[1];
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u32 position[2];
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position[0] = esalt_bufs[digests_offset].position[0];
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position[1] = esalt_bufs[digests_offset].position[1];
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u32 offset = esalt_bufs[digests_offset].offset;
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/**
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* digest
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*/
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const u32 search[4] =
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{
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digests_buf[digests_offset].digest_buf[DGST_R0],
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digests_buf[digests_offset].digest_buf[DGST_R1],
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digests_buf[digests_offset].digest_buf[DGST_R2],
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digests_buf[digests_offset].digest_buf[DGST_R3]
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};
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/**
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* loop
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*/
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u32 w0l = pws[gid].i[0];
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for (u32 il_pos = 0; il_pos < il_cnt; il_pos += VECT_SIZE)
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{
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const u32x w0r = words_buf_r[il_pos / VECT_SIZE];
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const u32x w0x = w0l | w0r;
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u32x w0_t[4];
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u32x w1_t[4];
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w0_t[0] = w0x;
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w0_t[1] = w0[1];
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w0_t[2] = w0[2];
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w0_t[3] = w0[3];
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w1_t[0] = w1[0];
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w1_t[1] = w1[1];
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w1_t[2] = w1[2];
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w1_t[3] = w1[3];
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u32x digest[4] = { 0 };
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chacha20_transform (w0_t, w1_t, position, offset, iv, plain, digest);
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const u32x r0 = digest[0];
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const u32x r1 = digest[1];
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const u32x r2 = digest[2];
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const u32x r3 = digest[3];
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COMPARE_S_SIMD(r0, r1, r2, r3);
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}
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}
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