mirror of https://github.com/hashcat/hashcat.git
Gabriele Gristina
3 years ago
parent
41156bb0a5
commit
7ea5da51a8
@ -0,0 +1,218 @@
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/**
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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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#endif
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#define COMPARE_S "inc_comp_single.cl"
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#define COMPARE_M "inc_comp_multi.cl"
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#define SNMPV3_ENGINEID_MAX 32
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#define SNMPV3_SALT_MAX 752
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typedef struct hmac_sha1_tmp
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{
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u32 idx;
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sha1_ctx_t ctx;
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} hmac_sha1_tmp_t;
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typedef struct snmpv3
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{
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u32 salt_buf[SNMPV3_SALT_MAX];
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u32 salt_len;
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u8 engineID_buf[SNMPV3_ENGINEID_MAX];
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u32 engineID_len;
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u8 packet_number[8+1];
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} snmpv3_t;
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KERNEL_FQ void m25200_init (KERN_ATTR_TMPS_ESALT (hmac_sha1_tmp_t, snmpv3_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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if (gid >= gid_max) return;
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/**
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* base
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*/
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const global u8 *pw_buf = (global u8 *) pws[gid].i;
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const u32 pw_len = pws[gid].pw_len;
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/**
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* authkey
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*/
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u32 idx = 0;
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u32 buf[32] = { 0 };
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u8 *tmp_buf = (u8 *) buf;
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sha1_ctx_t ctx;
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sha1_init (&ctx);
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for (int i = 0; i < 64; i++)
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{
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tmp_buf[i] = pw_buf[idx++];
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if (idx >= pw_len) idx = 0;
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}
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sha1_update_swap (&ctx, buf, 64);
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tmps[gid].idx = idx;
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tmps[gid].ctx = ctx;
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}
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KERNEL_FQ void m25200_loop (KERN_ATTR_TMPS_ESALT (hmac_sha1_tmp_t, snmpv3_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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const global u8 *pw_buf = (global u8 *) pws[gid].i;
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const u32 pw_len = pws[gid].pw_len;
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u32 idx = tmps[gid].idx;
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u32 buf[32] = { 0 };
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u8 *tmp_buf = (u8 *) buf;
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sha1_ctx_t ctx = tmps[gid].ctx;
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for (u32 j = 0; j < loop_cnt; j++)
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{
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for (int i = 0; i < 64; i++)
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{
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tmp_buf[i] = pw_buf[idx++];
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if (idx >= pw_len) idx = 0;
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}
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sha1_update_swap (&ctx, buf, 64);
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}
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tmps[gid].idx = idx;
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tmps[gid].ctx = ctx;
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}
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KERNEL_FQ void m25200_comp (KERN_ATTR_TMPS_ESALT (hmac_sha1_tmp_t, snmpv3_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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if (gid >= gid_max) return;
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const global u8 *engineID_buf = esalt_bufs[DIGESTS_OFFSET].engineID_buf;
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u32 engineID_len = esalt_bufs[DIGESTS_OFFSET].engineID_len;
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sha1_ctx_t ctx = tmps[gid].ctx;
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sha1_final (&ctx);
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const u32 h[5] = {
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hc_swap32_S (ctx.h[0]),
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hc_swap32_S (ctx.h[1]),
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hc_swap32_S (ctx.h[2]),
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hc_swap32_S (ctx.h[3]),
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hc_swap32_S (ctx.h[4])
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};
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u32 tmp_buf[32] = { 0 };
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tmp_buf[0] = h[0];
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tmp_buf[1] = h[1];
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tmp_buf[2] = h[2];
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tmp_buf[3] = h[3];
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tmp_buf[4] = h[4];
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u8 *buf = (u8 *) (tmp_buf);
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u32 i = 20;
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u32 j;
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for (j = 0; j < engineID_len; j++)
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{
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buf[i++] = engineID_buf[j];
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}
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for (j = 0; j < 20; j++)
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{
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buf[i++] = buf[j];
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}
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sha1_init (&ctx);
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sha1_update_swap (&ctx, tmp_buf, i);
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//sha1_update_swap (&ctx, (u32 *)buf, i);
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sha1_final (&ctx);
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u32 key[16] = { 0 };
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key[0] = ctx.h[0];
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key[1] = ctx.h[1];
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key[2] = ctx.h[2];
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key[3] = ctx.h[3];
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key[4] = ctx.h[4];
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u32 s[SNMPV3_SALT_MAX] = { 0 };
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const u32 salt_len = esalt_bufs[DIGESTS_OFFSET].salt_len;
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u32 idx;
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for (i = 0, idx = 0; i < salt_len; i += 4, idx += 1)
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{
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s[idx] = esalt_bufs[DIGESTS_OFFSET].salt_buf[idx];
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}
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sha1_hmac_ctx_t hmac_ctx;
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sha1_hmac_init (&hmac_ctx, key, 20);
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sha1_hmac_update (&hmac_ctx, s, salt_len);
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sha1_hmac_final (&hmac_ctx);
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const u32 r0 = hmac_ctx.opad.h[DGST_R0];
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const u32 r1 = hmac_ctx.opad.h[DGST_R1];
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const u32 r2 = hmac_ctx.opad.h[DGST_R2];
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const u32 r3 = 0;
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#define il_pos 0
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#ifdef KERNEL_STATIC
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#include COMPARE_M
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#endif
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}
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@ -0,0 +1,318 @@
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/**
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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 "modules.h"
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#include "bitops.h"
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#include "convert.h"
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#include "shared.h"
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#include "memory.h"
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#include "emu_inc_hash_sha1.h"
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static const u32 ATTACK_EXEC = ATTACK_EXEC_OUTSIDE_KERNEL;
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static const u32 DGST_POS0 = 0;
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static const u32 DGST_POS1 = 1;
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static const u32 DGST_POS2 = 2;
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static const u32 DGST_POS3 = 3;
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static const u32 DGST_SIZE = DGST_SIZE_4_4; // 4_3
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static const u32 HASH_CATEGORY = HASH_CATEGORY_NETWORK_PROTOCOL;
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static const char *HASH_NAME = "SNMPv3 HMAC-SHA1-96";
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static const u64 KERN_TYPE = 25200;
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static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
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| OPTI_TYPE_SLOW_HASH_SIMD_LOOP;
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static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE;
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static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
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static const char *ST_PASS = "hashcat";
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static const char *ST_HASH = "$SNMPv3$2$66763052$13981919518623358902340156831753173612320956749283824166083320737667668557830898783481876963136410266762758410322896320705075044221495960812100760230106803899899467077793703068392752686845035561487927252457444567685389901239388468830507087105054207914325254376053788152029716918450770264047103676562621965276752797029332926039166807829108367446173251908238116020942421323633620301312478670302264165059728208402342845743839533979473825394866704960428648622730299023225638967097578710279784722583947877561544154219162080289188160001741612377820114739093961409809862173307722539556954826052612794054060797358016549602977742745078911393042420821004243620362464971828700104979572910001640083882586179153483503492341163054930853321963503411228241996417991605003371264529827508426941919673592574025732354318435733211018917539824570724324796232199960952117561108106623865308577977944499366806697863259301760429786001824121720055893438673268643594146796410437039466462606490272723136671298529920486664067752007564122205089571790718437001200506203464426405927405102300269665189637001279369690218157456566218400534722049383049029139069701182053729830585217732347396312967325628046845068493719801191260136945971516486442056102815519090214442808707545803919529217103430588641187558031052830941742920355893755319896626873275796534820394248837050567688575113833311009595128372820474678989203565094681918285106102363272728922586582037066265522397748326630668375500179630717875844561081542915676557961288028298248995547031274515608973804660067065502484039882958958452781062725550260382637592283691962996228392332833626159043179186189904614052189303508782635840692436969244901198720814518$79f7b1$57e964c7cb117647004cf132";
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u32 module_attack_exec (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ATTACK_EXEC; }
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u32 module_dgst_pos0 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS0; }
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u32 module_dgst_pos1 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS1; }
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u32 module_dgst_pos2 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS2; }
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u32 module_dgst_pos3 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS3; }
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u32 module_dgst_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_SIZE; }
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u32 module_hash_category (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_CATEGORY; }
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const char *module_hash_name (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_NAME; }
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u64 module_kern_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return KERN_TYPE; }
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u32 module_opti_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTI_TYPE; }
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u64 module_opts_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTS_TYPE; }
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u32 module_salt_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return SALT_TYPE; }
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const char *module_st_hash (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_HASH; }
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const char *module_st_pass (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_PASS; }
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static const char *SIGNATURE_SNMPV3 = "$SNMPv3$2$";
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#define SNMPV3_SALT_MAX 1500
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#define SNMPV3_SALT_MAX_BIN 752
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#define SNMPV3_ENGINEID_MAX 32
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#define SNMPV3_MSG_AUTH_PARAMS_MAX 12
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typedef struct hmac_sha1_tmp
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{
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u32 idx;
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sha1_ctx_t ctx;
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} hmac_sha1_tmp_t;
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typedef struct snmpv3
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{
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u32 salt_buf[SNMPV3_SALT_MAX_BIN];
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u32 salt_len;
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u8 engineID_buf[SNMPV3_ENGINEID_MAX];
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u32 engineID_len;
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u8 packet_number[8+1];
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} snmpv3_t;
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u64 module_esalt_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
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{
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const u64 esalt_size = (const u64) sizeof (snmpv3_t);
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return esalt_size;
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}
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u64 module_tmp_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
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{
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const u64 tmp_size = (const u64) sizeof (hmac_sha1_tmp_t);
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return tmp_size;
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}
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int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED void *digest_buf, MAYBE_UNUSED salt_t *salt, MAYBE_UNUSED void *esalt_buf, MAYBE_UNUSED void *hook_salt_buf, MAYBE_UNUSED hashinfo_t *hash_info, const char *line_buf, MAYBE_UNUSED const int line_len)
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{
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u32 *digest = (u32 *) digest_buf;
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snmpv3_t *snmpv3 = (snmpv3_t *) esalt_buf;
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token_t token;
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token.token_cnt = 5;
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token.signatures_cnt = 1;
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token.signatures_buf[0] = SIGNATURE_SNMPV3;
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token.len[0] = 10;
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token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_SIGNATURE;
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// packet number
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token.len_min[1] = 1;
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token.len_max[1] = 8;
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token.sep[1] = '$';
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token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH;
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// salt
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token.len_min[2] = 12 * 2;
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token.len_max[2] = SNMPV3_SALT_MAX * 2;
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token.sep[2] = '$';
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token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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// engineid
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token.len_min[3] = 5;
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token.len_max[3] = SNMPV3_ENGINEID_MAX;
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token.sep[3] = '$';
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token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH;
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// digest
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token.len_min[4] = SNMPV3_MSG_AUTH_PARAMS_MAX * 2;
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token.len_max[4] = SNMPV3_MSG_AUTH_PARAMS_MAX * 2;
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token.sep[4] = '$';
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token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
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if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
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// packet number
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const u8 *packet_number_pos = token.buf[1];
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const int packet_number_len = token.len[1];
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memset (snmpv3->packet_number, 0, sizeof (snmpv3->packet_number));
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strncpy ((char *) snmpv3->packet_number, (char *) packet_number_pos, packet_number_len);
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// salt
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const u8 *salt_pos = token.buf[2];
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const int salt_len = token.len[2];
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u8 *salt_ptr = (u8 *) snmpv3->salt_buf;
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int i;
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int j;
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for (i = 0, j = 0; i < salt_len; i += 2, j += 1)
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{
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salt_ptr[j] = hex_to_u8 (salt_pos + i);
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}
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for (i = 0; i < salt_len / 4; i++)
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{
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snmpv3->salt_buf[i] = byte_swap_32 (snmpv3->salt_buf[i]);
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}
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snmpv3->salt_len = salt_len / 2;
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salt->salt_iter = 16384 - 1;
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// handle unique salts detection
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sha1_ctx_t sha1_ctx;
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sha1_init (&sha1_ctx);
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sha1_update (&sha1_ctx, snmpv3->salt_buf, snmpv3->salt_len);
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sha1_final (&sha1_ctx);
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// store sha1(snmpv3->salt_buf) in salt_buf
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memcpy (salt->salt_buf, sha1_ctx.h, 20);
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// engineid
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|
||||
const u8 *engineID_pos = token.buf[3];
|
||||
const int engineID_len = token.len[3];
|
||||
|
||||
u8 *engineID_ptr = (u8 *) snmpv3->engineID_buf;
|
||||
|
||||
for (i = 0, j = 0; i < engineID_len; i += 2, j += 1)
|
||||
{
|
||||
engineID_ptr[j] = hex_to_u8 (engineID_pos + i);
|
||||
}
|
||||
|
||||
snmpv3->engineID_len = engineID_len / 2;
|
||||
|
||||
// digest
|
||||
|
||||
const u8 *hash_pos = token.buf[4];
|
||||
|
||||
digest[0] = hex_to_u32 (hash_pos + 0);
|
||||
digest[1] = hex_to_u32 (hash_pos + 8);
|
||||
digest[2] = hex_to_u32 (hash_pos + 16);
|
||||
|
||||
digest[0] = byte_swap_32 (digest[0]);
|
||||
digest[1] = byte_swap_32 (digest[1]);
|
||||
digest[2] = byte_swap_32 (digest[2]);
|
||||
|
||||
digest[3] = 0;
|
||||
|
||||
return (PARSER_OK);
|
||||
}
|
||||
|
||||
int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const void *digest_buf, MAYBE_UNUSED const salt_t *salt, MAYBE_UNUSED const void *esalt_buf, MAYBE_UNUSED const void *hook_salt_buf, MAYBE_UNUSED const hashinfo_t *hash_info, char *line_buf, MAYBE_UNUSED const int line_size)
|
||||
{
|
||||
const u32 *digest = (const u32 *) digest_buf;
|
||||
|
||||
snmpv3_t *snmpv3 = (snmpv3_t *) esalt_buf;
|
||||
|
||||
int line_len = snprintf (line_buf, 10 + strlen ((char *) snmpv3->packet_number) + 1 + 1, "%s%s$", SIGNATURE_SNMPV3, snmpv3->packet_number);
|
||||
|
||||
uint i;
|
||||
|
||||
u32 salt_buf_32[SNMPV3_SALT_MAX_BIN] = { 0 };
|
||||
|
||||
for (i = 0; i < SNMPV3_SALT_MAX_BIN; i++) salt_buf_32[i] = byte_swap_32 (snmpv3->salt_buf[i]);
|
||||
|
||||
const u8 *salt_buf_ptr = (u8 *) salt_buf_32;
|
||||
|
||||
for (i = 0; i < snmpv3->salt_len; i++)
|
||||
{
|
||||
line_len += snprintf (line_buf+line_len, 3, "%02x", salt_buf_ptr[i]);
|
||||
}
|
||||
|
||||
line_len += snprintf (line_buf+line_len, 2, "$");
|
||||
|
||||
for (i = 0; i < snmpv3->engineID_len; i++)
|
||||
{
|
||||
line_len += snprintf (line_buf+line_len, 3, "%02x", snmpv3->engineID_buf[i]);
|
||||
}
|
||||
|
||||
line_len += snprintf (line_buf+line_len, 2, "$");
|
||||
|
||||
line_len += snprintf (line_buf+line_len, 9, "%08x", digest[0]);
|
||||
line_len += snprintf (line_buf+line_len, 9, "%08x", digest[1]);
|
||||
line_len += snprintf (line_buf+line_len, 9, "%08x", digest[2]);
|
||||
|
||||
return line_len;
|
||||
}
|
||||
|
||||
void module_init (module_ctx_t *module_ctx)
|
||||
{
|
||||
module_ctx->module_context_size = MODULE_CONTEXT_SIZE_CURRENT;
|
||||
module_ctx->module_interface_version = MODULE_INTERFACE_VERSION_CURRENT;
|
||||
|
||||
module_ctx->module_attack_exec = module_attack_exec;
|
||||
module_ctx->module_benchmark_esalt = MODULE_DEFAULT;
|
||||
module_ctx->module_benchmark_hook_salt = MODULE_DEFAULT;
|
||||
module_ctx->module_benchmark_mask = MODULE_DEFAULT;
|
||||
module_ctx->module_benchmark_salt = MODULE_DEFAULT;
|
||||
module_ctx->module_build_plain_postprocess = MODULE_DEFAULT;
|
||||
module_ctx->module_deep_comp_kernel = MODULE_DEFAULT;
|
||||
module_ctx->module_dgst_pos0 = module_dgst_pos0;
|
||||
module_ctx->module_dgst_pos1 = module_dgst_pos1;
|
||||
module_ctx->module_dgst_pos2 = module_dgst_pos2;
|
||||
module_ctx->module_dgst_pos3 = module_dgst_pos3;
|
||||
module_ctx->module_dgst_size = module_dgst_size;
|
||||
module_ctx->module_dictstat_disable = MODULE_DEFAULT;
|
||||
module_ctx->module_esalt_size = module_esalt_size;
|
||||
module_ctx->module_extra_buffer_size = MODULE_DEFAULT;
|
||||
module_ctx->module_extra_tmp_size = MODULE_DEFAULT;
|
||||
module_ctx->module_forced_outfile_format = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_binary_count = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_binary_parse = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_binary_save = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_decode_potfile = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_decode_zero_hash = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_decode = module_hash_decode;
|
||||
module_ctx->module_hash_encode_status = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_encode_potfile = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_encode = module_hash_encode;
|
||||
module_ctx->module_hash_init_selftest = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_mode = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_category = module_hash_category;
|
||||
module_ctx->module_hash_name = module_hash_name;
|
||||
module_ctx->module_hashes_count_min = MODULE_DEFAULT;
|
||||
module_ctx->module_hashes_count_max = MODULE_DEFAULT;
|
||||
module_ctx->module_hlfmt_disable = MODULE_DEFAULT;
|
||||
module_ctx->module_hook_extra_param_size = MODULE_DEFAULT;
|
||||
module_ctx->module_hook_extra_param_init = MODULE_DEFAULT;
|
||||
module_ctx->module_hook_extra_param_term = MODULE_DEFAULT;
|
||||
module_ctx->module_hook12 = MODULE_DEFAULT;
|
||||
module_ctx->module_hook23 = MODULE_DEFAULT;
|
||||
module_ctx->module_hook_salt_size = MODULE_DEFAULT;
|
||||
module_ctx->module_hook_size = MODULE_DEFAULT;
|
||||
module_ctx->module_jit_build_options = MODULE_DEFAULT;
|
||||
module_ctx->module_jit_cache_disable = MODULE_DEFAULT;
|
||||
module_ctx->module_kernel_accel_max = MODULE_DEFAULT;
|
||||
module_ctx->module_kernel_accel_min = MODULE_DEFAULT;
|
||||
module_ctx->module_kernel_loops_max = MODULE_DEFAULT;
|
||||
module_ctx->module_kernel_loops_min = MODULE_DEFAULT;
|
||||
module_ctx->module_kernel_threads_max = MODULE_DEFAULT;
|
||||
module_ctx->module_kernel_threads_min = MODULE_DEFAULT;
|
||||
module_ctx->module_kern_type = module_kern_type;
|
||||
module_ctx->module_kern_type_dynamic = MODULE_DEFAULT;
|
||||
module_ctx->module_opti_type = module_opti_type;
|
||||
module_ctx->module_opts_type = module_opts_type;
|
||||
module_ctx->module_outfile_check_disable = MODULE_DEFAULT;
|
||||
module_ctx->module_outfile_check_nocomp = MODULE_DEFAULT;
|
||||
module_ctx->module_potfile_custom_check = MODULE_DEFAULT;
|
||||
module_ctx->module_potfile_disable = MODULE_DEFAULT;
|
||||
module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT;
|
||||
module_ctx->module_pwdump_column = MODULE_DEFAULT;
|
||||
module_ctx->module_pw_max = MODULE_DEFAULT;
|
||||
module_ctx->module_pw_min = MODULE_DEFAULT;
|
||||
module_ctx->module_salt_max = MODULE_DEFAULT;
|
||||
module_ctx->module_salt_min = MODULE_DEFAULT;
|
||||
module_ctx->module_salt_type = module_salt_type;
|
||||
module_ctx->module_separator = MODULE_DEFAULT;
|
||||
module_ctx->module_st_hash = module_st_hash;
|
||||
module_ctx->module_st_pass = module_st_pass;
|
||||
module_ctx->module_tmp_size = module_tmp_size;
|
||||
module_ctx->module_unstable_warning = MODULE_DEFAULT;
|
||||
module_ctx->module_warmup_disable = MODULE_DEFAULT;
|
||||
}
|
||||
@ -0,0 +1,79 @@
|
||||
#!/usr/bin/env perl
|
||||
|
||||
##
|
||||
## Author......: See docs/credits.txt
|
||||
## License.....: MIT
|
||||
##
|
||||
|
||||
use strict;
|
||||
use warnings;
|
||||
|
||||
use Digest::SHA qw (sha1 sha1_hex);
|
||||
use Digest::HMAC qw (hmac hmac_hex);
|
||||
|
||||
sub module_constraints { [[1, 256], [24, 3000], [-1, -1], [-1, -1], [-1, -1]] }
|
||||
|
||||
sub module_generate_hash
|
||||
{
|
||||
my $word = shift;
|
||||
my $salt = shift;
|
||||
my $pkt_num = shift // int(rand(99999999));
|
||||
my $engineID = shift // random_hex_string(6);
|
||||
|
||||
# make even if needed
|
||||
|
||||
if (length($salt) %2 == 1)
|
||||
{
|
||||
$salt = $salt . "8";
|
||||
}
|
||||
|
||||
my $string1 = $word x 1048576;
|
||||
|
||||
$string1 = substr ($string1, 0, 1048576);
|
||||
|
||||
my $sha1_digest1 = sha1_hex ($string1);
|
||||
|
||||
my $buf = join '', $sha1_digest1, $engineID, $sha1_digest1;
|
||||
|
||||
my $sha1_digest2 = sha1(pack("H*", $buf));
|
||||
|
||||
my $digest = hmac_hex (pack("H*", $salt), $sha1_digest2, \&sha1);
|
||||
|
||||
$digest = substr ($digest, 0, 24);
|
||||
|
||||
my $hash = sprintf ("\$SNMPv3\$2\$%s\$%s\$%s\$%s", $pkt_num, $salt, $engineID, $digest);
|
||||
|
||||
return $hash;
|
||||
}
|
||||
|
||||
sub module_verify_hash
|
||||
{
|
||||
my $line = shift;
|
||||
|
||||
my $idx = index ($line, ':');
|
||||
|
||||
return unless $idx >= 0;
|
||||
|
||||
my $hash = substr ($line, 0, $idx);
|
||||
my $word = substr ($line, $idx + 1);
|
||||
|
||||
return unless length ($word) gt 0;
|
||||
return unless substr ($hash, 0, 10) eq '$SNMPv3$2$';
|
||||
|
||||
my (undef, $signature, $version, $pkt_num, $salt, $engineID, $digest) = split '\$', $hash;
|
||||
|
||||
return unless defined $signature;
|
||||
return unless defined $version;
|
||||
return unless defined $pkt_num;
|
||||
return unless defined $salt;
|
||||
return unless defined $engineID;
|
||||
return unless defined $digest;
|
||||
|
||||
my $word_packed = pack_if_HEX_notation ($word);
|
||||
|
||||
my $new_hash = module_generate_hash ($word_packed, $salt, $pkt_num, $engineID); #, $digest);
|
||||
|
||||
return ($new_hash, $word);
|
||||
}
|
||||
|
||||
1;
|
||||
Loading…
Reference in new issue