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484 lines
11 KiB
Common Lisp
484 lines
11 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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#include "inc_hash_sha1.cl"
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#include "inc_hash_sha256.cl"
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#include "inc_cipher_aes.cl"
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#endif
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typedef struct androidfde_tmp
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{
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u32 ipad[5];
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u32 opad[5];
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u32 dgst[10];
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u32 out[10];
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} androidfde_tmp_t;
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typedef struct androidfde
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{
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u32 data[384];
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} androidfde_t;
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DECLSPEC void hmac_sha1_run_V (u32x *w0, u32x *w1, u32x *w2, u32x *w3, u32x *ipad, u32x *opad, u32x *digest)
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{
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digest[0] = ipad[0];
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digest[1] = ipad[1];
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digest[2] = ipad[2];
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digest[3] = ipad[3];
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digest[4] = ipad[4];
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sha1_transform_vector (w0, w1, w2, w3, digest);
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w0[0] = digest[0];
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w0[1] = digest[1];
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w0[2] = digest[2];
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w0[3] = digest[3];
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w1[0] = digest[4];
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w1[1] = 0x80000000;
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w1[2] = 0;
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w1[3] = 0;
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w2[0] = 0;
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w2[1] = 0;
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w2[2] = 0;
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w2[3] = 0;
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w3[0] = 0;
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w3[1] = 0;
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w3[2] = 0;
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w3[3] = (64 + 20) * 8;
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digest[0] = opad[0];
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digest[1] = opad[1];
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digest[2] = opad[2];
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digest[3] = opad[3];
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digest[4] = opad[4];
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sha1_transform_vector (w0, w1, w2, w3, digest);
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}
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KERNEL_FQ void m08800_init (KERN_ATTR_TMPS_ESALT (androidfde_tmp_t, androidfde_t))
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{
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/**
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* base
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*/
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const u64 gid = get_global_id (0);
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if (gid >= gid_max) return;
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sha1_hmac_ctx_t sha1_hmac_ctx;
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sha1_hmac_init_global_swap (&sha1_hmac_ctx, pws[gid].i, pws[gid].pw_len);
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tmps[gid].ipad[0] = sha1_hmac_ctx.ipad.h[0];
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tmps[gid].ipad[1] = sha1_hmac_ctx.ipad.h[1];
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tmps[gid].ipad[2] = sha1_hmac_ctx.ipad.h[2];
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tmps[gid].ipad[3] = sha1_hmac_ctx.ipad.h[3];
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tmps[gid].ipad[4] = sha1_hmac_ctx.ipad.h[4];
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tmps[gid].opad[0] = sha1_hmac_ctx.opad.h[0];
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tmps[gid].opad[1] = sha1_hmac_ctx.opad.h[1];
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tmps[gid].opad[2] = sha1_hmac_ctx.opad.h[2];
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tmps[gid].opad[3] = sha1_hmac_ctx.opad.h[3];
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tmps[gid].opad[4] = sha1_hmac_ctx.opad.h[4];
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sha1_hmac_update_global_swap (&sha1_hmac_ctx, salt_bufs[SALT_POS].salt_buf, salt_bufs[SALT_POS].salt_len);
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for (u32 i = 0, j = 1; i < 8; i += 5, j += 1)
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{
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sha1_hmac_ctx_t sha1_hmac_ctx2 = sha1_hmac_ctx;
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u32 w0[4];
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u32 w1[4];
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u32 w2[4];
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u32 w3[4];
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w0[0] = j;
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w0[1] = 0;
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w0[2] = 0;
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w0[3] = 0;
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w1[0] = 0;
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w1[1] = 0;
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w1[2] = 0;
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w1[3] = 0;
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w2[0] = 0;
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w2[1] = 0;
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w2[2] = 0;
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w2[3] = 0;
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w3[0] = 0;
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w3[1] = 0;
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w3[2] = 0;
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w3[3] = 0;
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sha1_hmac_update_64 (&sha1_hmac_ctx2, w0, w1, w2, w3, 4);
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sha1_hmac_final (&sha1_hmac_ctx2);
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tmps[gid].dgst[i + 0] = sha1_hmac_ctx2.opad.h[0];
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tmps[gid].dgst[i + 1] = sha1_hmac_ctx2.opad.h[1];
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tmps[gid].dgst[i + 2] = sha1_hmac_ctx2.opad.h[2];
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tmps[gid].dgst[i + 3] = sha1_hmac_ctx2.opad.h[3];
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tmps[gid].dgst[i + 4] = sha1_hmac_ctx2.opad.h[4];
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tmps[gid].out[i + 0] = tmps[gid].dgst[i + 0];
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tmps[gid].out[i + 1] = tmps[gid].dgst[i + 1];
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tmps[gid].out[i + 2] = tmps[gid].dgst[i + 2];
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tmps[gid].out[i + 3] = tmps[gid].dgst[i + 3];
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tmps[gid].out[i + 4] = tmps[gid].dgst[i + 4];
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}
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}
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KERNEL_FQ void m08800_loop (KERN_ATTR_TMPS_ESALT (androidfde_tmp_t, androidfde_t))
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{
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const u64 gid = get_global_id (0);
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if ((gid * VECT_SIZE) >= gid_max) return;
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u32x ipad[5];
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u32x opad[5];
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ipad[0] = packv (tmps, ipad, gid, 0);
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ipad[1] = packv (tmps, ipad, gid, 1);
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ipad[2] = packv (tmps, ipad, gid, 2);
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ipad[3] = packv (tmps, ipad, gid, 3);
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ipad[4] = packv (tmps, ipad, gid, 4);
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opad[0] = packv (tmps, opad, gid, 0);
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opad[1] = packv (tmps, opad, gid, 1);
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opad[2] = packv (tmps, opad, gid, 2);
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opad[3] = packv (tmps, opad, gid, 3);
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opad[4] = packv (tmps, opad, gid, 4);
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for (u32 i = 0; i < 8; i += 5)
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{
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u32x dgst[5];
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u32x out[5];
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dgst[0] = packv (tmps, dgst, gid, i + 0);
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dgst[1] = packv (tmps, dgst, gid, i + 1);
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dgst[2] = packv (tmps, dgst, gid, i + 2);
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dgst[3] = packv (tmps, dgst, gid, i + 3);
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dgst[4] = packv (tmps, dgst, gid, i + 4);
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out[0] = packv (tmps, out, gid, i + 0);
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out[1] = packv (tmps, out, gid, i + 1);
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out[2] = packv (tmps, out, gid, i + 2);
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out[3] = packv (tmps, out, gid, i + 3);
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out[4] = packv (tmps, out, gid, i + 4);
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for (u32 j = 0; j < loop_cnt; j++)
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{
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u32x w0[4];
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u32x w1[4];
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u32x w2[4];
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u32x w3[4];
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w0[0] = dgst[0];
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w0[1] = dgst[1];
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w0[2] = dgst[2];
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w0[3] = dgst[3];
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w1[0] = dgst[4];
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w1[1] = 0x80000000;
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w1[2] = 0;
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w1[3] = 0;
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w2[0] = 0;
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w2[1] = 0;
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w2[2] = 0;
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w2[3] = 0;
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w3[0] = 0;
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w3[1] = 0;
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w3[2] = 0;
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w3[3] = (64 + 20) * 8;
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hmac_sha1_run_V (w0, w1, w2, w3, ipad, opad, dgst);
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out[0] ^= dgst[0];
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out[1] ^= dgst[1];
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out[2] ^= dgst[2];
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out[3] ^= dgst[3];
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out[4] ^= dgst[4];
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}
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unpackv (tmps, dgst, gid, i + 0, dgst[0]);
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unpackv (tmps, dgst, gid, i + 1, dgst[1]);
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unpackv (tmps, dgst, gid, i + 2, dgst[2]);
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unpackv (tmps, dgst, gid, i + 3, dgst[3]);
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unpackv (tmps, dgst, gid, i + 4, dgst[4]);
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unpackv (tmps, out, gid, i + 0, out[0]);
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unpackv (tmps, out, gid, i + 1, out[1]);
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unpackv (tmps, out, gid, i + 2, out[2]);
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unpackv (tmps, out, gid, i + 3, out[3]);
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unpackv (tmps, out, gid, i + 4, out[4]);
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}
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}
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KERNEL_FQ void m08800_comp (KERN_ATTR_TMPS_ESALT (androidfde_tmp_t, androidfde_t))
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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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const u64 lsz = get_local_size (0);
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/**
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* aes shared
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*/
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#ifdef REAL_SHM
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LOCAL_VK u32 s_td0[256];
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LOCAL_VK u32 s_td1[256];
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LOCAL_VK u32 s_td2[256];
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LOCAL_VK u32 s_td3[256];
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LOCAL_VK u32 s_td4[256];
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LOCAL_VK u32 s_te0[256];
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LOCAL_VK u32 s_te1[256];
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LOCAL_VK u32 s_te2[256];
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LOCAL_VK u32 s_te3[256];
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LOCAL_VK u32 s_te4[256];
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for (u32 i = lid; i < 256; i += lsz)
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{
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s_td0[i] = td0[i];
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s_td1[i] = td1[i];
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s_td2[i] = td2[i];
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s_td3[i] = td3[i];
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s_td4[i] = td4[i];
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s_te0[i] = te0[i];
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s_te1[i] = te1[i];
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s_te2[i] = te2[i];
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s_te3[i] = te3[i];
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s_te4[i] = te4[i];
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}
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SYNC_THREADS ();
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#else
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CONSTANT_AS u32a *s_td0 = td0;
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CONSTANT_AS u32a *s_td1 = td1;
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CONSTANT_AS u32a *s_td2 = td2;
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CONSTANT_AS u32a *s_td3 = td3;
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CONSTANT_AS u32a *s_td4 = td4;
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CONSTANT_AS u32a *s_te0 = te0;
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CONSTANT_AS u32a *s_te1 = te1;
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CONSTANT_AS u32a *s_te2 = te2;
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CONSTANT_AS u32a *s_te3 = te3;
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CONSTANT_AS u32a *s_te4 = te4;
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#endif
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if (gid >= gid_max) return;
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/**
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* aes
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*/
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u32 ukey[4];
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ukey[0] = tmps[gid].out[0];
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ukey[1] = tmps[gid].out[1];
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ukey[2] = tmps[gid].out[2];
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ukey[3] = tmps[gid].out[3];
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#define KEYLEN 60
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u32 ks[KEYLEN];
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AES128_set_decrypt_key (ks, ukey, s_te0, s_te1, s_te2, s_te3, s_td0, s_td1, s_td2, s_td3);
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u32 data[4];
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data[0] = digests_buf[DIGESTS_OFFSET].digest_buf[0];
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data[1] = digests_buf[DIGESTS_OFFSET].digest_buf[1];
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data[2] = digests_buf[DIGESTS_OFFSET].digest_buf[2];
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data[3] = digests_buf[DIGESTS_OFFSET].digest_buf[3];
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u32 out[4];
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AES128_decrypt (ks, data, out, s_td0, s_td1, s_td2, s_td3, s_td4);
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u32 iv[4];
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iv[0] = tmps[gid].out[4];
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iv[1] = tmps[gid].out[5];
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iv[2] = tmps[gid].out[6];
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iv[3] = tmps[gid].out[7];
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const u32 a = out[0] ^ iv[0];
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const u32 b = out[1] ^ iv[1];
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const u32 c = out[2] ^ iv[2];
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const u32 d = out[3] ^ iv[3];
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// check for FAT
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{
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sha256_ctx_t ctx;
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sha256_init (&ctx);
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u32 w0[4];
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u32 w1[4];
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u32 w2[4];
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u32 w3[4];
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w0[0] = a;
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w0[1] = b;
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w0[2] = c;
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w0[3] = d;
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w1[0] = 0;
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w1[1] = 0;
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w1[2] = 0;
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w1[3] = 0;
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w2[0] = 0;
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w2[1] = 0;
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w2[2] = 0;
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w2[3] = 0;
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w3[0] = 0;
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w3[1] = 0;
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w3[2] = 0;
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w3[3] = 0;
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sha256_update_64 (&ctx, w0, w1, w2, w3, 16);
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sha256_final (&ctx);
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u32 essivhash[8];
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essivhash[0] = ctx.h[0];
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essivhash[1] = ctx.h[1];
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essivhash[2] = ctx.h[2];
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essivhash[3] = ctx.h[3];
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essivhash[4] = ctx.h[4];
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essivhash[5] = ctx.h[5];
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essivhash[6] = ctx.h[6];
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essivhash[7] = ctx.h[7];
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// 2. generate essiv based on startsector -- each 512 byte is one sector
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AES256_set_encrypt_key (ks, essivhash, s_te0, s_te1, s_te2, s_te3);
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data[0] = 0;
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data[1] = 0;
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data[2] = 0;
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data[3] = 0;
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u32 essiv[4];
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AES256_encrypt (ks, data, essiv, s_te0, s_te1, s_te2, s_te3, s_te4);
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// 3. decrypt real data, xor essiv afterwards
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data[0] = esalt_bufs[DIGESTS_OFFSET].data[0];
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data[1] = esalt_bufs[DIGESTS_OFFSET].data[1];
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data[2] = esalt_bufs[DIGESTS_OFFSET].data[2];
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data[3] = esalt_bufs[DIGESTS_OFFSET].data[3];
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iv[0] = essiv[0];
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iv[1] = essiv[1];
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iv[2] = essiv[2];
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iv[3] = essiv[3];
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ukey[0] = a;
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ukey[1] = b;
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ukey[2] = c;
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ukey[3] = d;
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AES128_set_decrypt_key (ks, ukey, s_te0, s_te1, s_te2, s_te3, s_td0, s_td1, s_td2, s_td3);
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AES128_decrypt (ks, data, out, s_td0, s_td1, s_td2, s_td3, s_td4);
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u32 r0 = out[0] ^ iv[0];
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u32 r1 = out[1] ^ iv[1];
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u32 r2 = out[2] ^ iv[2];
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//u32 r3 = out[3] ^ iv[3];
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// rotate 3 byte (in fat!)
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r0 = r1 << 8 | r0 >> 24;
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r1 = r2 << 8 | r1 >> 24;
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// MSDOS5.0
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if ((r0 == 0x4f44534d) && (r1 == 0x302e3553))
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{
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if (atomic_inc (&hashes_shown[DIGESTS_OFFSET]) == 0)
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{
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mark_hash (plains_buf, d_return_buf, SALT_POS, digests_cnt, 0, DIGESTS_OFFSET + 0, gid, 0, 0, 0);
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}
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}
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}
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// check for extfs
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{
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// 3. decrypt real data
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ukey[0] = a;
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ukey[1] = b;
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ukey[2] = c;
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ukey[3] = d;
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AES128_set_decrypt_key (ks, ukey, s_te0, s_te1, s_te2, s_te3, s_td0, s_td1, s_td2, s_td3);
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u32 r[16];
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// not needed because of cbc mode -- implementation flaw !!. first 16 byte are not interessting
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r[0] = 0;
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r[1] = 0;
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r[2] = 0;
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r[3] = 0;
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for (u32 i = 4; i < 16; i += 4)
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{
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data[0] = esalt_bufs[DIGESTS_OFFSET].data[256 + i + 0];
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data[1] = esalt_bufs[DIGESTS_OFFSET].data[256 + i + 1];
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data[2] = esalt_bufs[DIGESTS_OFFSET].data[256 + i + 2];
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data[3] = esalt_bufs[DIGESTS_OFFSET].data[256 + i + 3];
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iv[0] = esalt_bufs[DIGESTS_OFFSET].data[256 + i + 0 - 4];
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iv[1] = esalt_bufs[DIGESTS_OFFSET].data[256 + i + 1 - 4];
|
|
iv[2] = esalt_bufs[DIGESTS_OFFSET].data[256 + i + 2 - 4];
|
|
iv[3] = esalt_bufs[DIGESTS_OFFSET].data[256 + i + 3 - 4];
|
|
|
|
AES128_decrypt (ks, data, out, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
|
|
r[i + 0] = out[0] ^ iv[0];
|
|
r[i + 1] = out[1] ^ iv[1];
|
|
r[i + 2] = out[2] ^ iv[2];
|
|
r[i + 3] = out[3] ^ iv[3];
|
|
}
|
|
|
|
// we need just a few swapped, because we do not access the others
|
|
r[ 5] = hc_swap32_S (r[ 5]);
|
|
r[ 6] = hc_swap32_S (r[ 6]);
|
|
r[14] = hc_swap32_S (r[14]);
|
|
|
|
// superblock not on id 0 or 1
|
|
// assumes max block size is 32MiB
|
|
// has EXT2_SUPER_MAGIC
|
|
|
|
if ((r[5] < 2) && (r[6] < 16) && ((r[14] & 0xffff) == 0xEF53))
|
|
{
|
|
if (atomic_inc (&hashes_shown[DIGESTS_OFFSET]) == 0)
|
|
{
|
|
mark_hash (plains_buf, d_return_buf, SALT_POS, digests_cnt, 0, DIGESTS_OFFSET + 0, gid, 0, 0, 0);
|
|
}
|
|
}
|
|
}
|
|
}
|