diff --git a/OpenCL/m25200-pure.cl b/OpenCL/m25200-pure.cl
new file mode 100644
index 000000000..e47117398
--- /dev/null
+++ b/OpenCL/m25200-pure.cl
@@ -0,0 +1,218 @@
+/**
+ * Author......: See docs/credits.txt
+ * License.....: MIT
+ */
+
+//#define NEW_SIMD_CODE
+
+#ifdef KERNEL_STATIC
+#include "inc_vendor.h"
+#include "inc_types.h"
+#include "inc_platform.cl"
+#include "inc_common.cl"
+#include "inc_simd.cl"
+#include "inc_hash_sha1.cl"
+#endif
+
+#define COMPARE_S "inc_comp_single.cl"
+#define COMPARE_M "inc_comp_multi.cl"
+
+#define SNMPV3_ENGINEID_MAX 32
+#define SNMPV3_SALT_MAX 752
+
+typedef struct hmac_sha1_tmp
+{
+  u32 idx;
+  sha1_ctx_t ctx;
+
+} hmac_sha1_tmp_t;
+
+typedef struct snmpv3
+{
+  u32 salt_buf[SNMPV3_SALT_MAX];
+  u32 salt_len;
+
+  u8  engineID_buf[SNMPV3_ENGINEID_MAX];
+  u32 engineID_len;
+
+  u8 packet_number[8+1];
+
+} snmpv3_t;
+
+KERNEL_FQ void m25200_init (KERN_ATTR_TMPS_ESALT (hmac_sha1_tmp_t, snmpv3_t))
+{
+  /**
+   * modifier
+   */
+
+  const u64 gid = get_global_id (0);
+
+  if (gid >= gid_max) return;
+
+  /**
+   * base
+   */
+
+  const global u8 *pw_buf = (global u8 *) pws[gid].i;
+
+  const u32 pw_len = pws[gid].pw_len;
+
+  /**
+   * authkey
+   */
+
+  u32 idx = 0;
+
+  u32 buf[32] = { 0 };
+
+  u8 *tmp_buf = (u8 *) buf;
+
+  sha1_ctx_t ctx;
+
+  sha1_init (&ctx);
+
+  for (int i = 0; i < 64; i++)
+  {
+    tmp_buf[i] = pw_buf[idx++];
+
+    if (idx >= pw_len) idx = 0;
+  }
+
+  sha1_update_swap (&ctx, buf, 64);
+
+  tmps[gid].idx = idx;
+  tmps[gid].ctx = ctx;
+}
+
+KERNEL_FQ void m25200_loop (KERN_ATTR_TMPS_ESALT (hmac_sha1_tmp_t, snmpv3_t))
+{
+  /**
+   * base
+   */
+
+  const u64 gid = get_global_id (0);
+
+  if (gid >= gid_max) return;
+
+  const global u8 *pw_buf = (global u8 *) pws[gid].i;
+
+  const u32 pw_len = pws[gid].pw_len;
+
+  u32 idx = tmps[gid].idx;
+
+  u32 buf[32] = { 0 };
+
+  u8 *tmp_buf = (u8 *) buf;
+
+  sha1_ctx_t ctx = tmps[gid].ctx;
+
+  for (u32 j = 0; j < loop_cnt; j++)
+  {
+    for (int i = 0; i < 64; i++)
+    {
+      tmp_buf[i] = pw_buf[idx++];
+
+      if (idx >= pw_len) idx = 0;
+    }
+
+    sha1_update_swap (&ctx, buf, 64);
+  }
+
+  tmps[gid].idx = idx;
+  tmps[gid].ctx = ctx;
+}
+
+KERNEL_FQ void m25200_comp (KERN_ATTR_TMPS_ESALT (hmac_sha1_tmp_t, snmpv3_t))
+{
+  /**
+   * modifier
+   */
+
+  const u64 gid = get_global_id (0);
+
+  if (gid >= gid_max) return;
+
+  const global u8 *engineID_buf = esalt_bufs[DIGESTS_OFFSET].engineID_buf;
+
+  u32 engineID_len = esalt_bufs[DIGESTS_OFFSET].engineID_len;
+
+  sha1_ctx_t ctx = tmps[gid].ctx;
+
+  sha1_final (&ctx);
+
+  const u32 h[5] = {
+    hc_swap32_S (ctx.h[0]),
+    hc_swap32_S (ctx.h[1]),
+    hc_swap32_S (ctx.h[2]),
+    hc_swap32_S (ctx.h[3]),
+    hc_swap32_S (ctx.h[4])
+  };
+
+  u32 tmp_buf[32] = { 0 };
+
+  tmp_buf[0] = h[0];
+  tmp_buf[1] = h[1];
+  tmp_buf[2] = h[2];
+  tmp_buf[3] = h[3];
+  tmp_buf[4] = h[4];
+
+  u8 *buf = (u8 *) (tmp_buf);
+
+  u32 i = 20;
+  u32 j;
+
+  for (j = 0; j < engineID_len; j++)
+  {
+    buf[i++] = engineID_buf[j];
+  }
+
+  for (j = 0; j < 20; j++)
+  {
+    buf[i++] = buf[j];
+  }
+
+  sha1_init (&ctx);
+
+  sha1_update_swap (&ctx, tmp_buf, i);
+  //sha1_update_swap (&ctx, (u32 *)buf, i);
+
+  sha1_final (&ctx);
+
+  u32 key[16] = { 0 };
+
+  key[0] = ctx.h[0];
+  key[1] = ctx.h[1];
+  key[2] = ctx.h[2];
+  key[3] = ctx.h[3];
+  key[4] = ctx.h[4];
+
+  u32 s[SNMPV3_SALT_MAX] = { 0 };
+
+  const u32 salt_len = esalt_bufs[DIGESTS_OFFSET].salt_len;
+
+  u32 idx;
+
+  for (i = 0, idx = 0; i < salt_len; i += 4, idx += 1)
+  {
+    s[idx] = esalt_bufs[DIGESTS_OFFSET].salt_buf[idx];
+  }
+
+  sha1_hmac_ctx_t hmac_ctx;
+
+  sha1_hmac_init (&hmac_ctx, key, 20);
+
+  sha1_hmac_update (&hmac_ctx, s, salt_len);
+
+  sha1_hmac_final (&hmac_ctx);
+
+  const u32 r0 = hmac_ctx.opad.h[DGST_R0];
+  const u32 r1 = hmac_ctx.opad.h[DGST_R1];
+  const u32 r2 = hmac_ctx.opad.h[DGST_R2];
+  const u32 r3 = 0;
+
+  #define il_pos 0
+
+  #ifdef KERNEL_STATIC
+  #include COMPARE_M
+  #endif
+}
diff --git a/docs/changes.txt b/docs/changes.txt
index 713fc77cc..c31a3d621 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -21,6 +21,12 @@
 
 - HIP Kernels: Got rid of hip/hip_runtime.h dependancy to enable more easy integration of the HIP backend on Windows
 
+##
+## Algorithms
+##
+
+- Added hash-mode: SNMPv3 HMAC-SHA1-96
+
 * changes v6.2.2 -> v6.2.3
 
 ##
diff --git a/docs/readme.txt b/docs/readme.txt
index db616273c..89a0d291d 100644
--- a/docs/readme.txt
+++ b/docs/readme.txt
@@ -155,6 +155,7 @@ NVIDIA GPUs require "NVIDIA Driver" (440.64 or later) and "CUDA Toolkit" (9.0 or
 - SIP digest authentication (MD5)
 - IKE-PSK MD5
 - IKE-PSK SHA1
+- SNMPv3 HMAC-SHA1-96
 - WPA-EAPOL-PBKDF2
 - WPA-EAPOL-PMK
 - WPA-PBKDF2-PMKID+EAPOL
diff --git a/src/modules/module_25200.c b/src/modules/module_25200.c
new file mode 100644
index 000000000..b7f28ddc8
--- /dev/null
+++ b/src/modules/module_25200.c
@@ -0,0 +1,318 @@
+/**
+ * Author......: See docs/credits.txt
+ * License.....: MIT
+ */
+
+#include "common.h"
+#include "types.h"
+#include "modules.h"
+#include "bitops.h"
+#include "convert.h"
+#include "shared.h"
+#include "memory.h"
+#include "emu_inc_hash_sha1.h"
+
+static const u32   ATTACK_EXEC    = ATTACK_EXEC_OUTSIDE_KERNEL;
+static const u32   DGST_POS0      = 0;
+static const u32   DGST_POS1      = 1;
+static const u32   DGST_POS2      = 2;
+static const u32   DGST_POS3      = 3;
+static const u32   DGST_SIZE      = DGST_SIZE_4_4; // 4_3
+static const u32   HASH_CATEGORY  = HASH_CATEGORY_NETWORK_PROTOCOL;
+static const char *HASH_NAME      = "SNMPv3 HMAC-SHA1-96";
+static const u64   KERN_TYPE      = 25200;
+static const u32   OPTI_TYPE      = OPTI_TYPE_ZERO_BYTE
+                                  | OPTI_TYPE_SLOW_HASH_SIMD_LOOP;
+static const u64   OPTS_TYPE      = OPTS_TYPE_PT_GENERATE_LE;
+static const u32   SALT_TYPE      = SALT_TYPE_EMBEDDED;
+static const char *ST_PASS        = "hashcat";
+static const char *ST_HASH        = "$SNMPv3$2$66763052$13981919518623358902340156831753173612320956749283824166083320737667668557830898783481876963136410266762758410322896320705075044221495960812100760230106803899899467077793703068392752686845035561487927252457444567685389901239388468830507087105054207914325254376053788152029716918450770264047103676562621965276752797029332926039166807829108367446173251908238116020942421323633620301312478670302264165059728208402342845743839533979473825394866704960428648622730299023225638967097578710279784722583947877561544154219162080289188160001741612377820114739093961409809862173307722539556954826052612794054060797358016549602977742745078911393042420821004243620362464971828700104979572910001640083882586179153483503492341163054930853321963503411228241996417991605003371264529827508426941919673592574025732354318435733211018917539824570724324796232199960952117561108106623865308577977944499366806697863259301760429786001824121720055893438673268643594146796410437039466462606490272723136671298529920486664067752007564122205089571790718437001200506203464426405927405102300269665189637001279369690218157456566218400534722049383049029139069701182053729830585217732347396312967325628046845068493719801191260136945971516486442056102815519090214442808707545803919529217103430588641187558031052830941742920355893755319896626873275796534820394248837050567688575113833311009595128372820474678989203565094681918285106102363272728922586582037066265522397748326630668375500179630717875844561081542915676557961288028298248995547031274515608973804660067065502484039882958958452781062725550260382637592283691962996228392332833626159043179186189904614052189303508782635840692436969244901198720814518$79f7b1$57e964c7cb117647004cf132";
+
+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;     }
+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;       }
+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;       }
+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;       }
+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;       }
+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;       }
+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;   }
+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;       }
+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;       }
+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;       }
+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;       }
+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;       }
+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;         }
+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;         }
+
+static const char *SIGNATURE_SNMPV3 = "$SNMPv3$2$";
+
+#define SNMPV3_SALT_MAX 1500
+#define SNMPV3_SALT_MAX_BIN 752
+#define SNMPV3_ENGINEID_MAX 32
+#define SNMPV3_MSG_AUTH_PARAMS_MAX 12
+
+typedef struct hmac_sha1_tmp
+{
+  u32 idx;
+  sha1_ctx_t ctx;
+
+} hmac_sha1_tmp_t;
+
+typedef struct snmpv3
+{
+  u32 salt_buf[SNMPV3_SALT_MAX_BIN];
+  u32 salt_len;
+
+  u8 engineID_buf[SNMPV3_ENGINEID_MAX];
+  u32 engineID_len;
+
+  u8 packet_number[8+1];
+
+} snmpv3_t;
+
+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)
+{
+  const u64 esalt_size = (const u64) sizeof (snmpv3_t);
+
+  return esalt_size;
+}
+
+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)
+{
+  const u64 tmp_size = (const u64) sizeof (hmac_sha1_tmp_t);
+
+  return tmp_size;
+}
+
+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)
+{
+  u32 *digest = (u32 *) digest_buf;
+
+  snmpv3_t *snmpv3 = (snmpv3_t *) esalt_buf;
+
+  token_t token;
+
+  token.token_cnt  = 5;
+  token.signatures_cnt    = 1;
+  token.signatures_buf[0] = SIGNATURE_SNMPV3;
+
+  token.len[0]     = 10;
+  token.attr[0]    = TOKEN_ATTR_FIXED_LENGTH
+                   | TOKEN_ATTR_VERIFY_SIGNATURE;
+
+  // packet number
+  token.len_min[1] = 1;
+  token.len_max[1] = 8;
+  token.sep[1]     = '$';
+  token.attr[1]    = TOKEN_ATTR_VERIFY_LENGTH;
+
+  // salt
+  token.len_min[2] = 12 * 2;
+  token.len_max[2] = SNMPV3_SALT_MAX * 2;
+  token.sep[2]     = '$';
+  token.attr[2]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_HEX;
+
+  // engineid
+  token.len_min[3] = 5;
+  token.len_max[3] = SNMPV3_ENGINEID_MAX;
+  token.sep[3]     = '$';
+  token.attr[3]    = TOKEN_ATTR_VERIFY_LENGTH;
+
+  // digest
+  token.len_min[4] = SNMPV3_MSG_AUTH_PARAMS_MAX * 2;
+  token.len_max[4] = SNMPV3_MSG_AUTH_PARAMS_MAX * 2;
+  token.sep[4]     = '$';
+  token.attr[4]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_HEX;
+
+  const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
+
+  if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
+
+  // packet number
+  const u8 *packet_number_pos = token.buf[1];
+  const int packet_number_len = token.len[1];
+
+  memset (snmpv3->packet_number, 0, sizeof (snmpv3->packet_number));
+
+  strncpy ((char *) snmpv3->packet_number, (char *) packet_number_pos, packet_number_len);
+
+  // salt
+
+  const u8 *salt_pos = token.buf[2];
+  const int salt_len = token.len[2];
+
+  u8 *salt_ptr = (u8 *) snmpv3->salt_buf;
+
+  int i;
+  int j;
+
+  for (i = 0, j = 0; i < salt_len; i += 2, j += 1)
+  {
+    salt_ptr[j] = hex_to_u8 (salt_pos + i);
+  }
+
+  for (i = 0; i < salt_len / 4; i++)
+  {
+    snmpv3->salt_buf[i] = byte_swap_32 (snmpv3->salt_buf[i]);
+  }
+
+  snmpv3->salt_len = salt_len / 2;
+
+  salt->salt_iter = 16384 - 1;
+
+  // handle unique salts detection
+
+  sha1_ctx_t sha1_ctx;
+
+  sha1_init   (&sha1_ctx);
+  sha1_update (&sha1_ctx, snmpv3->salt_buf, snmpv3->salt_len);
+  sha1_final  (&sha1_ctx);
+
+  // store sha1(snmpv3->salt_buf) in salt_buf
+
+  memcpy (salt->salt_buf, sha1_ctx.h, 20);
+
+  // engineid
+
+  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;
+}
diff --git a/tools/test_modules/m25200.pm b/tools/test_modules/m25200.pm
new file mode 100644
index 000000000..c44212825
--- /dev/null
+++ b/tools/test_modules/m25200.pm
@@ -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;