mirror of
https://github.com/hashcat/hashcat.git
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96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#include "common.h"
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#include "types.h"
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#include "event.h"
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#include "opencl.h"
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#include "hashes.h"
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#include "weak_hash.h"
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int weak_hash_check (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param, const u32 salt_pos)
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{
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hashconfig_t *hashconfig = hashcat_ctx->hashconfig;
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hashes_t *hashes = hashcat_ctx->hashes;
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straight_ctx_t *straight_ctx = hashcat_ctx->straight_ctx;
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salt_t *salt_buf = &hashes->salts_buf[salt_pos];
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device_param->kernel_params_buf32[27] = salt_pos;
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device_param->kernel_params_buf32[30] = 1;
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device_param->kernel_params_buf32[31] = salt_buf->digests_cnt;
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device_param->kernel_params_buf32[32] = salt_buf->digests_offset;
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device_param->kernel_params_buf32[33] = 0;
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device_param->kernel_params_buf32[34] = 1;
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u32 cmd0_rule_old = straight_ctx->kernel_rules_buf[0].cmds[0];
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straight_ctx->kernel_rules_buf[0].cmds[0] = 0;
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/**
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* run the kernel
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*/
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int CL_rc;
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if (hashconfig->attack_exec == ATTACK_EXEC_INSIDE_KERNEL)
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{
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CL_rc = run_kernel (hashcat_ctx, device_param, KERN_RUN_1, 1, false, 0);
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if (CL_rc == -1) return -1;
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}
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else
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{
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CL_rc = run_kernel (hashcat_ctx, device_param, KERN_RUN_1, 1, false, 0);
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if (CL_rc == -1) return -1;
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u32 loop_step = 16;
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const u32 iter = salt_buf->salt_iter;
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for (u32 loop_pos = 0; loop_pos < iter; loop_pos += loop_step)
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{
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u32 loop_left = iter - loop_pos;
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loop_left = MIN (loop_left, loop_step);
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device_param->kernel_params_buf32[28] = loop_pos;
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device_param->kernel_params_buf32[29] = loop_left;
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CL_rc = run_kernel (hashcat_ctx, device_param, KERN_RUN_2, 1, false, 0);
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if (CL_rc == -1) return -1;
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}
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CL_rc = run_kernel (hashcat_ctx, device_param, KERN_RUN_3, 1, false, 0);
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if (CL_rc == -1) return -1;
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}
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/**
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* result
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*/
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check_cracked (hashcat_ctx, device_param, salt_pos);
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/**
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* cleanup
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*/
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device_param->kernel_params_buf32[27] = 0;
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device_param->kernel_params_buf32[28] = 0;
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device_param->kernel_params_buf32[29] = 0;
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device_param->kernel_params_buf32[30] = 0;
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device_param->kernel_params_buf32[31] = 0;
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device_param->kernel_params_buf32[32] = 0;
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device_param->kernel_params_buf32[33] = 0;
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device_param->kernel_params_buf32[34] = 0;
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straight_ctx->kernel_rules_buf[0].cmds[0] = cmd0_rule_old;
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return 0;
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}
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