diff --git a/OpenCL/m24100-pure.cl b/OpenCL/m24100-pure.cl
new file mode 100644
index 000000000..3b2cb60f3
--- /dev/null
+++ b/OpenCL/m24100-pure.cl
@@ -0,0 +1,366 @@
+/**
+ * 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_md5.cl"
+#include "inc_hash_sha1.cl"
+#endif
+
+#define COMPARE_S "inc_comp_single.cl"
+#define COMPARE_M "inc_comp_multi.cl"
+
+typedef struct mongodb_sha1_tmp
+{
+  u32  ipad[5];
+  u32  opad[5];
+
+  u32  dgst[5];
+  u32  out[5];
+
+} mongodb_sha1_tmp_t;
+
+typedef struct mongodb_sha1
+{
+  u32 salt[16];
+  u32 user[16];
+
+  u32 user_len;
+
+} mongodb_sha1_t;
+
+DECLSPEC void hmac_sha1_run_V (u32x *w0, u32x *w1, u32x *w2, u32x *w3, u32x *ipad, u32x *opad, u32x *digest)
+{
+  digest[0] = ipad[0];
+  digest[1] = ipad[1];
+  digest[2] = ipad[2];
+  digest[3] = ipad[3];
+  digest[4] = ipad[4];
+
+  sha1_transform_vector (w0, w1, w2, w3, digest);
+
+  w0[0] = digest[0];
+  w0[1] = digest[1];
+  w0[2] = digest[2];
+  w0[3] = digest[3];
+  w1[0] = digest[4];
+  w1[1] = 0x80000000;
+  w1[2] = 0;
+  w1[3] = 0;
+  w2[0] = 0;
+  w2[1] = 0;
+  w2[2] = 0;
+  w2[3] = 0;
+  w3[0] = 0;
+  w3[1] = 0;
+  w3[2] = 0;
+  w3[3] = (64 + 20) * 8;
+
+  digest[0] = opad[0];
+  digest[1] = opad[1];
+  digest[2] = opad[2];
+  digest[3] = opad[3];
+  digest[4] = opad[4];
+
+  sha1_transform_vector (w0, w1, w2, w3, digest);
+}
+
+KERNEL_FQ void m24100_init (KERN_ATTR_TMPS_ESALT (mongodb_sha1_tmp_t, mongodb_sha1_t))
+{
+  /**
+   * modifier
+   */
+
+  const u64 gid = get_global_id (0);
+  const u64 lid = get_local_id (0);
+  const u64 lsz = get_local_size (0);
+
+  /**
+   * bin2asc table
+   */
+
+  LOCAL_VK u32 l_bin2asc[256];
+
+  for (u32 i = lid; i < 256; i += lsz)
+  {
+    const u32 i0 = (i >> 0) & 15;
+    const u32 i1 = (i >> 4) & 15;
+
+    l_bin2asc[i] = ((i0 < 10) ? '0' + i0 : 'a' - 10 + i0) << 0
+                 | ((i1 < 10) ? '0' + i1 : 'a' - 10 + i1) << 8;
+  }
+
+  SYNC_THREADS ();
+
+  if (gid >= gid_max) return;
+
+  md5_ctx_t md5_ctx;
+
+  md5_init (&md5_ctx);
+
+  md5_update_global (&md5_ctx, esalt_bufs[DIGESTS_OFFSET].user, esalt_bufs[DIGESTS_OFFSET].user_len);
+  md5_update_global (&md5_ctx, pws[gid].i, pws[gid].pw_len);
+
+  md5_final (&md5_ctx);
+
+  u32 a = md5_ctx.h[0];
+  u32 b = md5_ctx.h[1];
+  u32 c = md5_ctx.h[2];
+  u32 d = md5_ctx.h[3];
+
+  #define uint_to_hex_lower8(i) l_bin2asc[(i)]
+
+  u32 hex[16] = { 0 };
+
+  hex[0] = uint_to_hex_lower8 ((a >>  8) & 255) <<  0
+         | uint_to_hex_lower8 ((a >>  0) & 255) << 16;
+  hex[1] = uint_to_hex_lower8 ((a >> 24) & 255) <<  0
+         | uint_to_hex_lower8 ((a >> 16) & 255) << 16;
+  hex[2] = uint_to_hex_lower8 ((b >>  8) & 255) <<  0
+         | uint_to_hex_lower8 ((b >>  0) & 255) << 16;
+  hex[3] = uint_to_hex_lower8 ((b >> 24) & 255) <<  0
+         | uint_to_hex_lower8 ((b >> 16) & 255) << 16;
+  hex[4] = uint_to_hex_lower8 ((c >>  8) & 255) <<  0
+         | uint_to_hex_lower8 ((c >>  0) & 255) << 16;
+  hex[5] = uint_to_hex_lower8 ((c >> 24) & 255) <<  0
+         | uint_to_hex_lower8 ((c >> 16) & 255) << 16;
+  hex[6] = uint_to_hex_lower8 ((d >>  8) & 255) <<  0
+         | uint_to_hex_lower8 ((d >>  0) & 255) << 16;
+  hex[7] = uint_to_hex_lower8 ((d >> 24) & 255) <<  0
+         | uint_to_hex_lower8 ((d >> 16) & 255) << 16;
+
+  sha1_hmac_ctx_t sha1_hmac_ctx;
+
+  sha1_hmac_init (&sha1_hmac_ctx, hex, 32);
+
+  tmps[gid].ipad[0] = sha1_hmac_ctx.ipad.h[0];
+  tmps[gid].ipad[1] = sha1_hmac_ctx.ipad.h[1];
+  tmps[gid].ipad[2] = sha1_hmac_ctx.ipad.h[2];
+  tmps[gid].ipad[3] = sha1_hmac_ctx.ipad.h[3];
+  tmps[gid].ipad[4] = sha1_hmac_ctx.ipad.h[4];
+
+  tmps[gid].opad[0] = sha1_hmac_ctx.opad.h[0];
+  tmps[gid].opad[1] = sha1_hmac_ctx.opad.h[1];
+  tmps[gid].opad[2] = sha1_hmac_ctx.opad.h[2];
+  tmps[gid].opad[3] = sha1_hmac_ctx.opad.h[3];
+  tmps[gid].opad[4] = sha1_hmac_ctx.opad.h[4];
+
+  sha1_hmac_update_global (&sha1_hmac_ctx, esalt_bufs[DIGESTS_OFFSET].salt, 16);
+
+  for (u32 i = 0, j = 1; i < 4; i += 5, j += 1)
+  {
+    sha1_hmac_ctx_t sha1_hmac_ctx2 = sha1_hmac_ctx;
+
+    u32 w0[4];
+    u32 w1[4];
+    u32 w2[4];
+    u32 w3[4];
+
+    w0[0] = j;
+    w0[1] = 0;
+    w0[2] = 0;
+    w0[3] = 0;
+    w1[0] = 0;
+    w1[1] = 0;
+    w1[2] = 0;
+    w1[3] = 0;
+    w2[0] = 0;
+    w2[1] = 0;
+    w2[2] = 0;
+    w2[3] = 0;
+    w3[0] = 0;
+    w3[1] = 0;
+    w3[2] = 0;
+    w3[3] = 0;
+
+    sha1_hmac_update_64 (&sha1_hmac_ctx2, w0, w1, w2, w3, 4);
+
+    sha1_hmac_final (&sha1_hmac_ctx2);
+
+    tmps[gid].dgst[i + 0] = sha1_hmac_ctx2.opad.h[0];
+    tmps[gid].dgst[i + 1] = sha1_hmac_ctx2.opad.h[1];
+    tmps[gid].dgst[i + 2] = sha1_hmac_ctx2.opad.h[2];
+    tmps[gid].dgst[i + 3] = sha1_hmac_ctx2.opad.h[3];
+    tmps[gid].dgst[i + 4] = sha1_hmac_ctx2.opad.h[4];
+
+    tmps[gid].out[i + 0] = tmps[gid].dgst[i + 0];
+    tmps[gid].out[i + 1] = tmps[gid].dgst[i + 1];
+    tmps[gid].out[i + 2] = tmps[gid].dgst[i + 2];
+    tmps[gid].out[i + 3] = tmps[gid].dgst[i + 3];
+    tmps[gid].out[i + 4] = tmps[gid].dgst[i + 4];
+  }
+}
+
+KERNEL_FQ void m24100_loop (KERN_ATTR_TMPS_ESALT (mongodb_sha1_tmp_t, mongodb_sha1_t))
+{
+  const u64 gid = get_global_id (0);
+
+  if ((gid * VECT_SIZE) >= gid_max) return;
+
+  u32x ipad[5];
+  u32x opad[5];
+
+  ipad[0] = packv (tmps, ipad, gid, 0);
+  ipad[1] = packv (tmps, ipad, gid, 1);
+  ipad[2] = packv (tmps, ipad, gid, 2);
+  ipad[3] = packv (tmps, ipad, gid, 3);
+  ipad[4] = packv (tmps, ipad, gid, 4);
+
+  opad[0] = packv (tmps, opad, gid, 0);
+  opad[1] = packv (tmps, opad, gid, 1);
+  opad[2] = packv (tmps, opad, gid, 2);
+  opad[3] = packv (tmps, opad, gid, 3);
+  opad[4] = packv (tmps, opad, gid, 4);
+
+  for (u32 i = 0; i < 4; i += 5)
+  {
+    u32x dgst[5];
+    u32x out[5];
+
+    dgst[0] = packv (tmps, dgst, gid, i + 0);
+    dgst[1] = packv (tmps, dgst, gid, i + 1);
+    dgst[2] = packv (tmps, dgst, gid, i + 2);
+    dgst[3] = packv (tmps, dgst, gid, i + 3);
+    dgst[4] = packv (tmps, dgst, gid, i + 4);
+
+    out[0] = packv (tmps, out, gid, i + 0);
+    out[1] = packv (tmps, out, gid, i + 1);
+    out[2] = packv (tmps, out, gid, i + 2);
+    out[3] = packv (tmps, out, gid, i + 3);
+    out[4] = packv (tmps, out, gid, i + 4);
+
+    for (u32 j = 0; j < loop_cnt; j++)
+    {
+      u32x w0[4];
+      u32x w1[4];
+      u32x w2[4];
+      u32x w3[4];
+
+      w0[0] = dgst[0];
+      w0[1] = dgst[1];
+      w0[2] = dgst[2];
+      w0[3] = dgst[3];
+      w1[0] = dgst[4];
+      w1[1] = 0x80000000;
+      w1[2] = 0;
+      w1[3] = 0;
+      w2[0] = 0;
+      w2[1] = 0;
+      w2[2] = 0;
+      w2[3] = 0;
+      w3[0] = 0;
+      w3[1] = 0;
+      w3[2] = 0;
+      w3[3] = (64 + 20) * 8;
+
+      hmac_sha1_run_V (w0, w1, w2, w3, ipad, opad, dgst);
+
+      out[0] ^= dgst[0];
+      out[1] ^= dgst[1];
+      out[2] ^= dgst[2];
+      out[3] ^= dgst[3];
+      out[4] ^= dgst[4];
+    }
+
+    unpackv (tmps, dgst, gid, i + 0, dgst[0]);
+    unpackv (tmps, dgst, gid, i + 1, dgst[1]);
+    unpackv (tmps, dgst, gid, i + 2, dgst[2]);
+    unpackv (tmps, dgst, gid, i + 3, dgst[3]);
+    unpackv (tmps, dgst, gid, i + 4, dgst[4]);
+
+    unpackv (tmps, out, gid, i + 0, out[0]);
+    unpackv (tmps, out, gid, i + 1, out[1]);
+    unpackv (tmps, out, gid, i + 2, out[2]);
+    unpackv (tmps, out, gid, i + 3, out[3]);
+    unpackv (tmps, out, gid, i + 4, out[4]);
+  }
+}
+
+KERNEL_FQ void m24100_comp (KERN_ATTR_TMPS_ESALT (mongodb_sha1_tmp_t, mongodb_sha1_t))
+{
+  /**
+   * base
+   */
+
+  const u64 gid = get_global_id (0);
+
+  if (gid >= gid_max) return;
+
+  const u64 lid = get_local_id (0);
+
+  u32 out[5];
+
+  out[0] = tmps[gid].out[0];
+  out[1] = tmps[gid].out[1];
+  out[2] = tmps[gid].out[2];
+  out[3] = tmps[gid].out[3];
+  out[4] = tmps[gid].out[4];
+
+  // HMAC-SHA1 with "Server Key" salt:
+
+  u32 w0[4];
+  u32 w1[4];
+  u32 w2[4];
+  u32 w3[4];
+
+  w0[0] = out[0];
+  w0[1] = out[1];
+  w0[2] = out[2];
+  w0[3] = out[3];
+  w1[0] = out[4];
+  w1[1] = 0;
+  w1[2] = 0;
+  w1[3] = 0;
+  w2[0] = 0;
+  w2[1] = 0;
+  w2[2] = 0;
+  w2[3] = 0;
+  w3[0] = 0;
+  w3[1] = 0;
+  w3[2] = 0;
+  w3[3] = 0;
+
+  sha1_hmac_ctx_t sha1_hmac_ctx;
+
+  sha1_hmac_init_64 (&sha1_hmac_ctx, w0, w1, w2, w3);
+
+  w0[0] = 0x53657276; // Serv
+  w0[1] = 0x6572204b; // er K
+  w0[2] = 0x65790000; // ey
+  w0[3] = 0;
+  w1[0] = 0;
+  w1[1] = 0;
+  w1[2] = 0;
+  w1[3] = 0;
+  w2[0] = 0;
+  w2[1] = 0;
+  w2[2] = 0;
+  w2[3] = 0;
+  w3[0] = 0;
+  w3[1] = 0;
+  w3[2] = 0;
+  w3[3] = 0;
+
+  sha1_hmac_update_64 (&sha1_hmac_ctx, w0, w1, w2, w3, 10);
+
+  sha1_hmac_final (&sha1_hmac_ctx);
+
+  const u32 r0 = sha1_hmac_ctx.opad.h[DGST_R0];
+  const u32 r1 = sha1_hmac_ctx.opad.h[DGST_R1];
+  const u32 r2 = sha1_hmac_ctx.opad.h[DGST_R2];
+  const u32 r3 = sha1_hmac_ctx.opad.h[DGST_R3];
+
+  #define il_pos 0
+
+  #ifdef KERNEL_STATIC
+  #include COMPARE_M
+  #endif
+}
diff --git a/OpenCL/m24200-pure.cl b/OpenCL/m24200-pure.cl
new file mode 100644
index 000000000..0efa80e05
--- /dev/null
+++ b/OpenCL/m24200-pure.cl
@@ -0,0 +1,353 @@
+/**
+ * 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_sha256.cl"
+#endif
+
+#define COMPARE_S "inc_comp_single.cl"
+#define COMPARE_M "inc_comp_multi.cl"
+
+typedef struct mongodb_sha256_tmp
+{
+  u32  ipad[8];
+  u32  opad[8];
+
+  u32  dgst[8];
+  u32  out[8];
+
+} mongodb_sha256_tmp_t;
+
+typedef struct mongodb_sha256
+{
+  u32 salt[16];
+  u32 user[16];
+
+  u32 user_len;
+
+} mongodb_sha256_t;
+
+DECLSPEC void hmac_sha256_run_V (u32x *w0, u32x *w1, u32x *w2, u32x *w3, u32x *ipad, u32x *opad, u32x *digest)
+{
+  digest[0] = ipad[0];
+  digest[1] = ipad[1];
+  digest[2] = ipad[2];
+  digest[3] = ipad[3];
+  digest[4] = ipad[4];
+  digest[5] = ipad[5];
+  digest[6] = ipad[6];
+  digest[7] = ipad[7];
+
+  sha256_transform_vector (w0, w1, w2, w3, digest);
+
+  w0[0] = digest[0];
+  w0[1] = digest[1];
+  w0[2] = digest[2];
+  w0[3] = digest[3];
+  w1[0] = digest[4];
+  w1[1] = digest[5];
+  w1[2] = digest[6];
+  w1[3] = digest[7];
+  w2[0] = 0x80000000;
+  w2[1] = 0;
+  w2[2] = 0;
+  w2[3] = 0;
+  w3[0] = 0;
+  w3[1] = 0;
+  w3[2] = 0;
+  w3[3] = (64 + 32) * 8;
+
+  digest[0] = opad[0];
+  digest[1] = opad[1];
+  digest[2] = opad[2];
+  digest[3] = opad[3];
+  digest[4] = opad[4];
+  digest[5] = opad[5];
+  digest[6] = opad[6];
+  digest[7] = opad[7];
+
+  sha256_transform_vector (w0, w1, w2, w3, digest);
+}
+
+KERNEL_FQ void m24200_init (KERN_ATTR_TMPS_ESALT (mongodb_sha256_tmp_t, mongodb_sha256_t))
+{
+  /**
+   * base
+   */
+
+  const u64 gid = get_global_id (0);
+
+  if (gid >= gid_max) return;
+
+  sha256_hmac_ctx_t sha256_hmac_ctx;
+
+  sha256_hmac_init_global_swap (&sha256_hmac_ctx, pws[gid].i, pws[gid].pw_len);
+
+  tmps[gid].ipad[0] = sha256_hmac_ctx.ipad.h[0];
+  tmps[gid].ipad[1] = sha256_hmac_ctx.ipad.h[1];
+  tmps[gid].ipad[2] = sha256_hmac_ctx.ipad.h[2];
+  tmps[gid].ipad[3] = sha256_hmac_ctx.ipad.h[3];
+  tmps[gid].ipad[4] = sha256_hmac_ctx.ipad.h[4];
+  tmps[gid].ipad[5] = sha256_hmac_ctx.ipad.h[5];
+  tmps[gid].ipad[6] = sha256_hmac_ctx.ipad.h[6];
+  tmps[gid].ipad[7] = sha256_hmac_ctx.ipad.h[7];
+
+  tmps[gid].opad[0] = sha256_hmac_ctx.opad.h[0];
+  tmps[gid].opad[1] = sha256_hmac_ctx.opad.h[1];
+  tmps[gid].opad[2] = sha256_hmac_ctx.opad.h[2];
+  tmps[gid].opad[3] = sha256_hmac_ctx.opad.h[3];
+  tmps[gid].opad[4] = sha256_hmac_ctx.opad.h[4];
+  tmps[gid].opad[5] = sha256_hmac_ctx.opad.h[5];
+  tmps[gid].opad[6] = sha256_hmac_ctx.opad.h[6];
+  tmps[gid].opad[7] = sha256_hmac_ctx.opad.h[7];
+
+  sha256_hmac_update_global (&sha256_hmac_ctx, esalt_bufs[DIGESTS_OFFSET].salt, 28);
+
+  for (u32 i = 0, j = 1; i < 8; i += 8, j += 1)
+  {
+    sha256_hmac_ctx_t sha256_hmac_ctx2 = sha256_hmac_ctx;
+
+    u32 w0[4];
+    u32 w1[4];
+    u32 w2[4];
+    u32 w3[4];
+
+    w0[0] = j;
+    w0[1] = 0;
+    w0[2] = 0;
+    w0[3] = 0;
+    w1[0] = 0;
+    w1[1] = 0;
+    w1[2] = 0;
+    w1[3] = 0;
+    w2[0] = 0;
+    w2[1] = 0;
+    w2[2] = 0;
+    w2[3] = 0;
+    w3[0] = 0;
+    w3[1] = 0;
+    w3[2] = 0;
+    w3[3] = 0;
+
+    sha256_hmac_update_64 (&sha256_hmac_ctx2, w0, w1, w2, w3, 4);
+
+    sha256_hmac_final (&sha256_hmac_ctx2);
+
+    tmps[gid].dgst[i + 0] = sha256_hmac_ctx2.opad.h[0];
+    tmps[gid].dgst[i + 1] = sha256_hmac_ctx2.opad.h[1];
+    tmps[gid].dgst[i + 2] = sha256_hmac_ctx2.opad.h[2];
+    tmps[gid].dgst[i + 3] = sha256_hmac_ctx2.opad.h[3];
+    tmps[gid].dgst[i + 4] = sha256_hmac_ctx2.opad.h[4];
+    tmps[gid].dgst[i + 5] = sha256_hmac_ctx2.opad.h[5];
+    tmps[gid].dgst[i + 6] = sha256_hmac_ctx2.opad.h[6];
+    tmps[gid].dgst[i + 7] = sha256_hmac_ctx2.opad.h[7];
+
+    tmps[gid].out[i + 0] = tmps[gid].dgst[i + 0];
+    tmps[gid].out[i + 1] = tmps[gid].dgst[i + 1];
+    tmps[gid].out[i + 2] = tmps[gid].dgst[i + 2];
+    tmps[gid].out[i + 3] = tmps[gid].dgst[i + 3];
+    tmps[gid].out[i + 4] = tmps[gid].dgst[i + 4];
+    tmps[gid].out[i + 5] = tmps[gid].dgst[i + 5];
+    tmps[gid].out[i + 6] = tmps[gid].dgst[i + 6];
+    tmps[gid].out[i + 7] = tmps[gid].dgst[i + 7];
+  }
+}
+
+KERNEL_FQ void m24200_loop (KERN_ATTR_TMPS_ESALT (mongodb_sha256_tmp_t, mongodb_sha256_t))
+{
+  const u64 gid = get_global_id (0);
+
+  if ((gid * VECT_SIZE) >= gid_max) return;
+
+  u32x ipad[8];
+  u32x opad[8];
+
+  ipad[0] = packv (tmps, ipad, gid, 0);
+  ipad[1] = packv (tmps, ipad, gid, 1);
+  ipad[2] = packv (tmps, ipad, gid, 2);
+  ipad[3] = packv (tmps, ipad, gid, 3);
+  ipad[4] = packv (tmps, ipad, gid, 4);
+  ipad[5] = packv (tmps, ipad, gid, 5);
+  ipad[6] = packv (tmps, ipad, gid, 6);
+  ipad[7] = packv (tmps, ipad, gid, 7);
+
+  opad[0] = packv (tmps, opad, gid, 0);
+  opad[1] = packv (tmps, opad, gid, 1);
+  opad[2] = packv (tmps, opad, gid, 2);
+  opad[3] = packv (tmps, opad, gid, 3);
+  opad[4] = packv (tmps, opad, gid, 4);
+  opad[5] = packv (tmps, opad, gid, 5);
+  opad[6] = packv (tmps, opad, gid, 6);
+  opad[7] = packv (tmps, opad, gid, 7);
+
+  for (u32 i = 0; i < 8; i += 8)
+  {
+    u32x dgst[8];
+    u32x out[8];
+
+    dgst[0] = packv (tmps, dgst, gid, i + 0);
+    dgst[1] = packv (tmps, dgst, gid, i + 1);
+    dgst[2] = packv (tmps, dgst, gid, i + 2);
+    dgst[3] = packv (tmps, dgst, gid, i + 3);
+    dgst[4] = packv (tmps, dgst, gid, i + 4);
+    dgst[5] = packv (tmps, dgst, gid, i + 5);
+    dgst[6] = packv (tmps, dgst, gid, i + 6);
+    dgst[7] = packv (tmps, dgst, gid, i + 7);
+
+    out[0] = packv (tmps, out, gid, i + 0);
+    out[1] = packv (tmps, out, gid, i + 1);
+    out[2] = packv (tmps, out, gid, i + 2);
+    out[3] = packv (tmps, out, gid, i + 3);
+    out[4] = packv (tmps, out, gid, i + 4);
+    out[5] = packv (tmps, out, gid, i + 5);
+    out[6] = packv (tmps, out, gid, i + 6);
+    out[7] = packv (tmps, out, gid, i + 7);
+
+    for (u32 j = 0; j < loop_cnt; j++)
+    {
+      u32x w0[4];
+      u32x w1[4];
+      u32x w2[4];
+      u32x w3[4];
+
+      w0[0] = dgst[0];
+      w0[1] = dgst[1];
+      w0[2] = dgst[2];
+      w0[3] = dgst[3];
+      w1[0] = dgst[4];
+      w1[1] = dgst[5];
+      w1[2] = dgst[6];
+      w1[3] = dgst[7];
+      w2[0] = 0x80000000;
+      w2[1] = 0;
+      w2[2] = 0;
+      w2[3] = 0;
+      w3[0] = 0;
+      w3[1] = 0;
+      w3[2] = 0;
+      w3[3] = (64 + 32) * 8;
+
+      hmac_sha256_run_V (w0, w1, w2, w3, ipad, opad, dgst);
+
+      out[0] ^= dgst[0];
+      out[1] ^= dgst[1];
+      out[2] ^= dgst[2];
+      out[3] ^= dgst[3];
+      out[4] ^= dgst[4];
+      out[5] ^= dgst[5];
+      out[6] ^= dgst[6];
+      out[7] ^= dgst[7];
+    }
+
+    unpackv (tmps, dgst, gid, i + 0, dgst[0]);
+    unpackv (tmps, dgst, gid, i + 1, dgst[1]);
+    unpackv (tmps, dgst, gid, i + 2, dgst[2]);
+    unpackv (tmps, dgst, gid, i + 3, dgst[3]);
+    unpackv (tmps, dgst, gid, i + 4, dgst[4]);
+    unpackv (tmps, dgst, gid, i + 5, dgst[5]);
+    unpackv (tmps, dgst, gid, i + 6, dgst[6]);
+    unpackv (tmps, dgst, gid, i + 7, dgst[7]);
+
+    unpackv (tmps, out, gid, i + 0, out[0]);
+    unpackv (tmps, out, gid, i + 1, out[1]);
+    unpackv (tmps, out, gid, i + 2, out[2]);
+    unpackv (tmps, out, gid, i + 3, out[3]);
+    unpackv (tmps, out, gid, i + 4, out[4]);
+    unpackv (tmps, out, gid, i + 5, out[5]);
+    unpackv (tmps, out, gid, i + 6, out[6]);
+    unpackv (tmps, out, gid, i + 7, out[7]);
+  }
+}
+
+KERNEL_FQ void m24200_comp (KERN_ATTR_TMPS_ESALT (mongodb_sha256_tmp_t, mongodb_sha256_t))
+{
+  /**
+   * base
+   */
+
+  const u64 gid = get_global_id (0);
+
+  if (gid >= gid_max) return;
+
+  const u64 lid = get_local_id (0);
+
+  u32 out[8];
+
+  out[0] = tmps[gid].out[0];
+  out[1] = tmps[gid].out[1];
+  out[2] = tmps[gid].out[2];
+  out[3] = tmps[gid].out[3];
+  out[4] = tmps[gid].out[4];
+  out[5] = tmps[gid].out[5];
+  out[6] = tmps[gid].out[6];
+  out[7] = tmps[gid].out[7];
+
+  // HMAC-SHA256 with "Server Key" salt:
+
+  u32 w0[4];
+  u32 w1[4];
+  u32 w2[4];
+  u32 w3[4];
+
+  w0[0] = out[0];
+  w0[1] = out[1];
+  w0[2] = out[2];
+  w0[3] = out[3];
+  w1[0] = out[4];
+  w1[1] = out[5];
+  w1[2] = out[6];
+  w1[3] = out[7];
+  w2[0] = 0;
+  w2[1] = 0;
+  w2[2] = 0;
+  w2[3] = 0;
+  w3[0] = 0;
+  w3[1] = 0;
+  w3[2] = 0;
+  w3[3] = 0;
+
+  sha256_hmac_ctx_t sha256_hmac_ctx;
+
+  sha256_hmac_init_64 (&sha256_hmac_ctx, w0, w1, w2, w3);
+
+  w0[0] = 0x53657276; // Serv
+  w0[1] = 0x6572204b; // er K
+  w0[2] = 0x65790000; // ey
+  w0[3] = 0;
+  w1[0] = 0;
+  w1[1] = 0;
+  w1[2] = 0;
+  w1[3] = 0;
+  w2[0] = 0;
+  w2[1] = 0;
+  w2[2] = 0;
+  w2[3] = 0;
+  w3[0] = 0;
+  w3[1] = 0;
+  w3[2] = 0;
+  w3[3] = 0;
+
+  sha256_hmac_update_64 (&sha256_hmac_ctx, w0, w1, w2, w3, 10);
+
+  sha256_hmac_final (&sha256_hmac_ctx);
+
+  const u32 r0 = sha256_hmac_ctx.opad.h[DGST_R0];
+  const u32 r1 = sha256_hmac_ctx.opad.h[DGST_R1];
+  const u32 r2 = sha256_hmac_ctx.opad.h[DGST_R2];
+  const u32 r3 = sha256_hmac_ctx.opad.h[DGST_R3];
+
+  #define il_pos 0
+
+  #ifdef KERNEL_STATIC
+  #include COMPARE_M
+  #endif
+}
diff --git a/docs/changes.txt b/docs/changes.txt
index 6e177057b..9aba524d7 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -9,6 +9,8 @@
 - Added hash-mode: Apple iWork
 - Added hash-mode: AxCrypt 2 AES-128
 - Added hash-mode: AxCrypt 2 AES-256
+- Added hash-mode: MongoDB ServerKey SCRAM-SHA-1
+- Added hash-mode: MongoDB ServerKey SCRAM-SHA-256
 - Added hash-mode: RAR3-p (Compressed)
 - Added hash-mode: RAR3-p (Uncompressed)
 - Added hash-mode: RSA/DSA/EC/OPENSSH Private Keys
diff --git a/docs/readme.txt b/docs/readme.txt
index 21fec6f19..82cc84e08 100644
--- a/docs/readme.txt
+++ b/docs/readme.txt
@@ -162,8 +162,10 @@ NVIDIA GPUs require "NVIDIA Driver" (440.64 or later) and "CUDA Toolkit" (9.0 or
 - Skype
 - Telegram Desktop App Passcode (PBKDF2-HMAC-SHA1)
 - Telegram Mobile App Passcode (SHA256)
-- PostgreSQL CRAM (MD5)
+- MongoDB ServerKey SCRAM-SHA-1
+- MongoDB ServerKey SCRAM-SHA-256
 - MySQL CRAM (SHA1)
+- PostgreSQL CRAM (MD5)
 - XMPP SCRAM
 - RACF
 - AIX {smd5}
diff --git a/src/modules/module_24100.c b/src/modules/module_24100.c
new file mode 100644
index 000000000..cd9b4d9c9
--- /dev/null
+++ b/src/modules/module_24100.c
@@ -0,0 +1,350 @@
+/**
+ * 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"
+
+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_5;
+static const u32   HASH_CATEGORY  = HASH_CATEGORY_DATABASE_SERVER;
+static const char *HASH_NAME      = "MongoDB ServerKey SCRAM-SHA-1";
+static const u64   KERN_TYPE      = 24100;
+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
+                                  | OPTS_TYPE_ST_BASE64;
+static const u32   SALT_TYPE      = SALT_TYPE_EMBEDDED;
+static const char *ST_PASS        = "hashcat";
+static const char *ST_HASH        = "$mongodb-scram$*0*dXNlcg==*10000*4p+f1tKpK18hQqrVr0UGOw==*Jv9lrpUQ2bVg2ZkXvRm2rppsqNw=";
+
+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;         }
+
+typedef struct mongodb_sha1_tmp
+{
+  u32  ipad[5];
+  u32  opad[5];
+
+  u32  dgst[5];
+  u32  out[5];
+
+} mongodb_sha1_tmp_t;
+
+typedef struct mongodb_sha1
+{
+  u32 salt[16];
+  u32 user[16];
+
+  u32 user_len;
+
+} mongodb_sha1_t;
+
+static const char *SIGNATURE_MONGODB_SHA1 = "$mongodb-scram$";
+
+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 (mongodb_sha1_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 (mongodb_sha1_tmp_t);
+
+  return tmp_size;
+}
+
+u32 module_pw_max (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
+{
+  // this overrides the reductions of PW_MAX in case optimized kernel is selected
+  // IOW, even in optimized kernel mode it support length 256
+
+  const u32 pw_max = PW_MAX;
+
+  return pw_max;
+}
+
+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;
+
+  mongodb_sha1_t *mongodb_sha1 = (mongodb_sha1_t *) esalt_buf;
+
+  token_t token;
+
+  token.token_cnt  = 6;
+
+  token.signatures_cnt    = 1;
+  token.signatures_buf[0] = SIGNATURE_MONGODB_SHA1;
+
+  token.sep[0]     = '*';
+  token.len_min[0] = 15;
+  token.len_max[0] = 15;
+  token.attr[0]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_SIGNATURE;
+
+  token.sep[1]     = '*';
+  token.len_min[1] = 1;
+  token.len_max[1] = 1;
+  token.attr[1]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_DIGIT;
+
+  token.sep[2]     = '*';
+  token.len_min[2] = 0;
+  token.len_max[2] = 76; // BASE64 encoded user (57 / 3 * 4)
+  token.attr[2]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_BASE64A;
+
+  token.sep[3]     = '*';
+  token.len_min[3] = 1;
+  token.len_max[3] = 7;
+  token.attr[3]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_DIGIT;
+
+  token.sep[4]     = '*';
+  token.len_min[4] = 24;
+  token.len_max[4] = 24;
+  token.attr[4]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_BASE64A;
+
+  token.len[5]     = 28;
+  token.attr[5]    = TOKEN_ATTR_FIXED_LENGTH
+                   | TOKEN_ATTR_VERIFY_BASE64A;
+
+  const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
+
+  if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
+
+  // version
+
+  const u8 *version_pos = token.buf[1];
+
+  if (version_pos[0] != '0') return (PARSER_SIGNATURE_UNMATCHED);
+
+  // user
+
+  const u8 *user_pos = token.buf[2];
+  const u32 user_len = token.len[2];
+
+  u8 tmp_buf[100] = { 0 };
+
+  int tmp_len = base64_decode (base64_to_int, user_pos, user_len, tmp_buf);
+
+  if (tmp_len > 57) return (PARSER_SALT_LENGTH);
+
+  memcpy ((char *) mongodb_sha1->user, tmp_buf, tmp_len);
+
+  memcpy ((char *) mongodb_sha1->user + tmp_len, ":mongo:", 7);
+
+  mongodb_sha1->user_len = tmp_len + 7;
+
+  // iter
+
+  const u8 *iter_pos = token.buf[3];
+
+  const u32 iter = hc_strtoul ((const char *) iter_pos, NULL, 10);
+
+  if (iter < 1) return (PARSER_SALT_ITERATION);
+
+  salt->salt_iter = iter - 1;
+
+  // salt
+
+  const u8 *salt_pos = token.buf[4];
+  const int salt_len = token.len[4];
+
+  memset (tmp_buf, 0, sizeof (tmp_buf));
+
+  tmp_len = base64_decode (base64_to_int, salt_pos, salt_len, tmp_buf);
+
+  if (tmp_len != 16) return (PARSER_SALT_LENGTH);
+
+  memcpy (mongodb_sha1->salt, tmp_buf, tmp_len);
+
+  mongodb_sha1->salt[0] = byte_swap_32 (mongodb_sha1->salt[0]);
+  mongodb_sha1->salt[1] = byte_swap_32 (mongodb_sha1->salt[1]);
+  mongodb_sha1->salt[2] = byte_swap_32 (mongodb_sha1->salt[2]);
+  mongodb_sha1->salt[3] = byte_swap_32 (mongodb_sha1->salt[3]);
+
+  salt->salt_len = tmp_len;
+
+  salt->salt_buf[0] = mongodb_sha1->salt[0];
+  salt->salt_buf[1] = mongodb_sha1->salt[1];
+  salt->salt_buf[2] = mongodb_sha1->salt[2];
+  salt->salt_buf[3] = mongodb_sha1->salt[3];
+
+  // hash
+
+  const u8 *hash_pos = token.buf[5];
+  const int hash_len = token.len[5];
+
+  memset (tmp_buf, 0, sizeof (tmp_buf));
+
+  tmp_len = base64_decode (base64_to_int, hash_pos, hash_len, tmp_buf);
+
+  if (tmp_len != 20) return (PARSER_HASH_LENGTH);
+
+  memcpy (digest, tmp_buf, 20);
+
+  digest[0] = byte_swap_32 (digest[0]);
+  digest[1] = byte_swap_32 (digest[1]);
+  digest[2] = byte_swap_32 (digest[2]);
+  digest[3] = byte_swap_32 (digest[3]);
+  digest[4] = byte_swap_32 (digest[4]);
+
+  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)
+{
+  u32 *digest = (u32 *) digest_buf;
+
+  mongodb_sha1_t *mongodb_sha1 = (mongodb_sha1_t *) esalt_buf;
+
+  // salt
+
+  u32 salt_buf[8] = { 0 }; // make the buffer large enough for base64_encode ()
+
+  salt_buf[0] = byte_swap_32 (mongodb_sha1->salt[0]);
+  salt_buf[1] = byte_swap_32 (mongodb_sha1->salt[1]);
+  salt_buf[2] = byte_swap_32 (mongodb_sha1->salt[2]);
+  salt_buf[3] = byte_swap_32 (mongodb_sha1->salt[3]);
+
+  u8 salt_base64[32] = { 0 };
+
+  base64_encode (int_to_base64, (const u8 *) salt_buf, 16, salt_base64);
+
+  // digest
+
+  u32 hash[8] = { 0 }; // make the buffer large enough for base64_encode ()
+
+  hash[0] = byte_swap_32 (digest[0]);
+  hash[1] = byte_swap_32 (digest[1]);
+  hash[2] = byte_swap_32 (digest[2]);
+  hash[3] = byte_swap_32 (digest[3]);
+  hash[4] = byte_swap_32 (digest[4]);
+
+  u8 dgst_base64[32] = { 0 };
+
+  base64_encode (int_to_base64, (const u8 *) hash, 20, dgst_base64);
+
+  // user
+
+  u32 user_len = mongodb_sha1->user_len - 7;
+
+  u8 user[100] = { 0 }; // actually: 64 - 7 (:mongo:)
+
+  memcpy (user, (char *) mongodb_sha1->user, user_len);
+
+  u8 user_base64[100] = { 0 };
+
+  base64_encode (int_to_base64, (const u8 *) user, user_len, user_base64);
+
+  const int line_len = snprintf (line_buf, line_size, "%s*0*%s*%u*%s*%s",
+      SIGNATURE_MONGODB_SHA1,
+      user_base64,
+      salt->salt_iter + 1,
+      salt_base64,
+      dgst_base64);
+
+  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_pw_max;
+  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/src/modules/module_24200.c b/src/modules/module_24200.c
new file mode 100644
index 000000000..b1da70c9a
--- /dev/null
+++ b/src/modules/module_24200.c
@@ -0,0 +1,384 @@
+/**
+ * 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"
+
+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_8;
+static const u32   HASH_CATEGORY  = HASH_CATEGORY_DATABASE_SERVER;
+static const char *HASH_NAME      = "MongoDB ServerKey SCRAM-SHA-256";
+static const u64   KERN_TYPE      = 24200;
+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
+                                  | OPTS_TYPE_ST_BASE64;
+static const u32   SALT_TYPE      = SALT_TYPE_EMBEDDED;
+static const char *ST_PASS        = "hashcat";
+static const char *ST_HASH        = "$mongodb-scram$*1*dXNlcg==*15000*qYaA1K1ZZSSpWfY+yqShlcTn0XVcrNipxiYCLQ==*QWVry9aTS/JW+y5CWCBr8lcEH9Kr/D4je60ncooPer8=";
+
+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;         }
+
+typedef struct mongodb_sha256_tmp
+{
+  u32  ipad[8];
+  u32  opad[8];
+
+  u32  dgst[8];
+  u32  out[8];
+
+} mongodb_sha256_tmp_t;
+
+typedef struct mongodb_sha256
+{
+  u32 salt[16];
+  u32 user[16];
+
+  u32 user_len;
+
+} mongodb_sha256_t;
+
+static const char *SIGNATURE_MONGODB_SHA256 = "$mongodb-scram$";
+
+char *module_jit_build_options (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra, MAYBE_UNUSED const hashes_t *hashes, MAYBE_UNUSED const hc_device_param_t *device_param)
+{
+  char *jit_build_options = NULL;
+
+  // Extra treatment for Apple systems
+  if (device_param->opencl_platform_vendor_id == VENDOR_ID_APPLE)
+  {
+    return jit_build_options;
+  }
+
+  // NVIDIA GPU
+  if (device_param->opencl_device_vendor_id == VENDOR_ID_NV)
+  {
+    hc_asprintf (&jit_build_options, "-D _unroll");
+  }
+
+  // ROCM
+  if ((device_param->opencl_device_vendor_id == VENDOR_ID_AMD) && (device_param->has_vperm == true))
+  {
+    hc_asprintf (&jit_build_options, "-D _unroll");
+  }
+
+  return jit_build_options;
+}
+
+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 (mongodb_sha256_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 (mongodb_sha256_tmp_t);
+
+  return tmp_size;
+}
+
+u32 module_pw_max (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
+{
+  // this overrides the reductions of PW_MAX in case optimized kernel is selected
+  // IOW, even in optimized kernel mode it support length 256
+
+  const u32 pw_max = PW_MAX;
+
+  return pw_max;
+}
+
+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;
+
+  mongodb_sha256_t *mongodb_sha256 = (mongodb_sha256_t *) esalt_buf;
+
+  token_t token;
+
+  token.token_cnt  = 6;
+
+  token.signatures_cnt    = 1;
+  token.signatures_buf[0] = SIGNATURE_MONGODB_SHA256;
+
+  token.sep[0]     = '*';
+  token.len_min[0] = 15;
+  token.len_max[0] = 15;
+  token.attr[0]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_SIGNATURE;
+
+  token.sep[1]     = '*';
+  token.len_min[1] = 1;
+  token.len_max[1] = 1;
+  token.attr[1]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_DIGIT;
+
+  token.sep[2]     = '*';
+  token.len_min[2] = 0;
+  token.len_max[2] = 88; // BASE64 encoded user (64 / 3 * 4)
+  token.attr[2]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_BASE64A;
+
+  token.sep[3]     = '*';
+  token.len_min[3] = 1;
+  token.len_max[3] = 7;
+  token.attr[3]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_DIGIT;
+
+  token.sep[4]     = '*';
+  token.len_min[4] = 40;
+  token.len_max[4] = 40;
+  token.attr[4]    = TOKEN_ATTR_VERIFY_LENGTH
+                   | TOKEN_ATTR_VERIFY_BASE64A;
+
+  token.len[5]     = 44;
+  token.attr[5]    = TOKEN_ATTR_FIXED_LENGTH
+                   | TOKEN_ATTR_VERIFY_BASE64A;
+
+  const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
+
+  if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
+
+  // version
+
+  const u8 *version_pos = token.buf[1];
+
+  if (version_pos[0] != '1') return (PARSER_SIGNATURE_UNMATCHED);
+
+  // user
+
+  const u8 *user_pos = token.buf[2];
+  const u32 user_len = token.len[2];
+
+  u8 tmp_buf[100] = { 0 };
+
+  int tmp_len = base64_decode (base64_to_int, user_pos, user_len, tmp_buf);
+
+  if (tmp_len > 64) return (PARSER_SALT_LENGTH);
+
+  memcpy ((char *) mongodb_sha256->user, tmp_buf, tmp_len);
+
+  mongodb_sha256->user_len = tmp_len;
+
+  // iter
+
+  const u8 *iter_pos = token.buf[3];
+
+  const u32 iter = hc_strtoul ((const char *) iter_pos, NULL, 10);
+
+  if (iter < 1) return (PARSER_SALT_ITERATION);
+
+  salt->salt_iter = iter - 1;
+
+  // salt
+
+  const u8 *salt_pos = token.buf[4];
+  const int salt_len = token.len[4];
+
+  tmp_len = base64_decode (base64_to_int, salt_pos, salt_len, tmp_buf);
+
+  if (tmp_len != 28) return (PARSER_SALT_LENGTH);
+
+  memcpy (mongodb_sha256->salt, tmp_buf, tmp_len);
+
+  mongodb_sha256->salt[0] = byte_swap_32 (mongodb_sha256->salt[0]);
+  mongodb_sha256->salt[1] = byte_swap_32 (mongodb_sha256->salt[1]);
+  mongodb_sha256->salt[2] = byte_swap_32 (mongodb_sha256->salt[2]);
+  mongodb_sha256->salt[3] = byte_swap_32 (mongodb_sha256->salt[3]);
+  mongodb_sha256->salt[4] = byte_swap_32 (mongodb_sha256->salt[4]);
+  mongodb_sha256->salt[5] = byte_swap_32 (mongodb_sha256->salt[5]);
+  mongodb_sha256->salt[6] = byte_swap_32 (mongodb_sha256->salt[6]);
+
+  salt->salt_len = tmp_len;
+
+  salt->salt_buf[0] = mongodb_sha256->salt[0];
+  salt->salt_buf[1] = mongodb_sha256->salt[1];
+  salt->salt_buf[2] = mongodb_sha256->salt[2];
+  salt->salt_buf[3] = mongodb_sha256->salt[3];
+  salt->salt_buf[4] = mongodb_sha256->salt[4];
+  salt->salt_buf[5] = mongodb_sha256->salt[5];
+  salt->salt_buf[6] = mongodb_sha256->salt[6];
+
+  // hash
+
+  const u8 *hash_pos = token.buf[5];
+  const int hash_len = token.len[5];
+
+  memset (tmp_buf, 0, sizeof (tmp_buf));
+
+  tmp_len = base64_decode (base64_to_int, hash_pos, hash_len, tmp_buf);
+
+  if (tmp_len != 32) return (PARSER_HASH_LENGTH);
+
+  memcpy (digest, tmp_buf, 32);
+
+  digest[0] = byte_swap_32 (digest[0]);
+  digest[1] = byte_swap_32 (digest[1]);
+  digest[2] = byte_swap_32 (digest[2]);
+  digest[3] = byte_swap_32 (digest[3]);
+  digest[4] = byte_swap_32 (digest[4]);
+  digest[5] = byte_swap_32 (digest[5]);
+  digest[6] = byte_swap_32 (digest[6]);
+  digest[7] = byte_swap_32 (digest[7]);
+
+  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)
+{
+  u32 *digest = (u32 *) digest_buf;
+
+  mongodb_sha256_t *mongodb_sha256 = (mongodb_sha256_t *) esalt_buf;
+
+  // salt
+
+  u32 salt_buf[8] = { 0 }; // make the buffer large enough for base64_encode ()
+
+  salt_buf[0] = byte_swap_32 (mongodb_sha256->salt[0]);
+  salt_buf[1] = byte_swap_32 (mongodb_sha256->salt[1]);
+  salt_buf[2] = byte_swap_32 (mongodb_sha256->salt[2]);
+  salt_buf[3] = byte_swap_32 (mongodb_sha256->salt[3]);
+  salt_buf[4] = byte_swap_32 (mongodb_sha256->salt[4]);
+  salt_buf[5] = byte_swap_32 (mongodb_sha256->salt[5]);
+  salt_buf[6] = byte_swap_32 (mongodb_sha256->salt[6]);
+
+  u8 salt_base64[64] = { 0 };
+
+  base64_encode (int_to_base64, (const u8 *) salt_buf, 28, salt_base64);
+
+  // digest
+
+  u32 hash[8] = { 0 }; // make the buffer large enough for base64_encode ()
+
+  hash[0] = byte_swap_32 (digest[0]);
+  hash[1] = byte_swap_32 (digest[1]);
+  hash[2] = byte_swap_32 (digest[2]);
+  hash[3] = byte_swap_32 (digest[3]);
+  hash[4] = byte_swap_32 (digest[4]);
+  hash[5] = byte_swap_32 (digest[5]);
+  hash[6] = byte_swap_32 (digest[6]);
+  hash[7] = byte_swap_32 (digest[7]);
+
+  u8 dgst_base64[64] = { 0 };
+
+  base64_encode (int_to_base64, (const u8 *) hash, 32, dgst_base64);
+
+  // user
+
+  u8 user[100] = { 0 };
+
+  memcpy (user, (char *) mongodb_sha256->user, 64);
+
+  u8 user_base64[100] = { 0 };
+
+  base64_encode (int_to_base64, (const u8 *) user, mongodb_sha256->user_len, user_base64);
+
+  const int line_len = snprintf (line_buf, line_size, "%s*1*%s*%u*%s*%s",
+      SIGNATURE_MONGODB_SHA256,
+      user_base64,
+      salt->salt_iter + 1,
+      salt_base64,
+      dgst_base64);
+
+  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_jit_build_options;
+  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_pw_max;
+  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/m24100.pm b/tools/test_modules/m24100.pm
new file mode 100644
index 000000000..5b469f27f
--- /dev/null
+++ b/tools/test_modules/m24100.pm
@@ -0,0 +1,88 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+
+use MIME::Base64 qw (decode_base64 encode_base64);
+use Digest::MD5  qw (md5_hex);
+use Digest::SHA1 qw (sha1);
+use Digest::HMAC qw (hmac);
+use Crypt::PBKDF2;
+
+sub module_constraints { [[0, 256], [16, 16], [-1, -1], [-1, -1], [-1, -1]] }
+
+my $ITERATIONS = 10000;
+my $MD5_SALT   = ":mongo:";
+my $HMAC_SALT  = "Server Key";
+
+sub module_generate_hash
+{
+  my $word = shift;
+  my $salt = shift;
+  my $iter = shift // $ITERATIONS;
+  my $user = shift // random_string (random_number (0, 57));
+
+  my $pbkdf = Crypt::PBKDF2->new
+  (
+    hash_class => 'HMACSHA1',
+    iterations => $iter,
+    output_len => 20
+  );
+
+  my $md5_dgst = md5_hex ($user . $MD5_SALT . $word);
+
+  my $pbkdf2_dgst = $pbkdf->PBKDF2 ($salt, $md5_dgst);
+
+  my $hash_buf = hmac ($HMAC_SALT, $pbkdf2_dgst, \&sha1);
+
+  my $hash = sprintf ('$mongodb-scram$*0*%s*%i*%s*%s', encode_base64 ($user, ""), $iter, encode_base64 ($salt, ""), encode_base64 ($hash_buf, ""));
+
+  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, $idx + 1);
+
+  return unless substr ($hash, 0, 17) eq '$mongodb-scram$*0';
+
+  my (undef, undef, $user, $iter, $salt) = split ('\*', $hash);
+
+  return unless defined ($user);
+  return unless defined ($iter);
+  return unless defined ($salt);
+
+  return unless ($user =~ m/^[A-Za-z0-9+\/=]{0,76}$/);
+
+  $user = decode_base64 ($user);
+
+  return unless (length ($user) <= 57);
+
+  return unless ($iter =~ m/^[1-9][0-9]{0,7}$/);
+
+  $iter = int ($iter);
+
+  return unless ($salt =~ m/^[A-Za-z0-9+\/=]{24}$/);
+
+  $salt = decode_base64 ($salt);
+
+  my $word_packed = pack_if_HEX_notation ($word);
+
+  my $new_hash = module_generate_hash ($word_packed, $salt, $iter, $user);
+
+  return ($new_hash, $word);
+}
+
+1;
diff --git a/tools/test_modules/m24200.pm b/tools/test_modules/m24200.pm
new file mode 100644
index 000000000..74b4bc4ab
--- /dev/null
+++ b/tools/test_modules/m24200.pm
@@ -0,0 +1,84 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+
+use MIME::Base64 qw (decode_base64 encode_base64);
+use Digest::SHA  qw (sha256);
+use Digest::HMAC qw (hmac);
+use Crypt::PBKDF2;
+
+sub module_constraints { [[0, 256], [28, 28], [-1, -1], [-1, -1], [-1, -1]] }
+
+my $ITERATIONS = 15000;
+my $HMAC_SALT  = "Server Key";
+
+sub module_generate_hash
+{
+  my $word = shift;
+  my $salt = shift;
+  my $iter = shift // $ITERATIONS;
+  my $user = shift // random_string (random_number (0, 64));
+
+  my $pbkdf = Crypt::PBKDF2->new
+  (
+    hasher     => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 256),
+    iterations => $iter,
+    output_len => 32
+  );
+
+  my $pbkdf2_dgst = $pbkdf->PBKDF2 ($salt, $word);
+
+  my $hash_buf = hmac ($HMAC_SALT, $pbkdf2_dgst, \&sha256);
+
+  my $hash = sprintf ('$mongodb-scram$*1*%s*%i*%s*%s', encode_base64 ($user, ""), $iter, encode_base64 ($salt, ""), encode_base64 ($hash_buf, ""));
+
+  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, $idx + 1);
+
+  return unless substr ($hash, 0, 17) eq '$mongodb-scram$*1';
+
+  my (undef, undef, $user, $iter, $salt) = split ('\*', $hash);
+
+  return unless defined ($user);
+  return unless defined ($iter);
+  return unless defined ($salt);
+
+  return unless ($user =~ m/^[A-Za-z0-9+\/=]{0,88}$/);
+
+  $user = decode_base64 ($user);
+
+  return unless (length ($user) <= 64);
+
+  return unless ($iter =~ m/^[1-9][0-9]{0,7}$/);
+
+  $iter = int ($iter);
+
+  return unless ($salt =~ m/^[A-Za-z0-9+\/=]{40}$/);
+
+  $salt = decode_base64 ($salt);
+
+  my $word_packed = pack_if_HEX_notation ($word);
+
+  my $new_hash = module_generate_hash ($word_packed, $salt, $iter, $user);
+
+  return ($new_hash, $word);
+}
+
+1;