diff --git a/OpenCL/inc_hash_blake2s.cl b/OpenCL/inc_hash_blake2s.cl
index c10006068..cf67e5f78 100644
--- a/OpenCL/inc_hash_blake2s.cl
+++ b/OpenCL/inc_hash_blake2s.cl
@@ -26,7 +26,7 @@ DECLSPEC u32 blake2s_rot16_S (const u32 a)
 DECLSPEC u32x blake2s_rot16 (const u32x a)
 {
   u32x r;
-  
+
   #if VECT_SIZE == 1
   r = blake2s_rot16_S (a);
   #endif
@@ -346,7 +346,7 @@ DECLSPEC void blake2s_update (PRIVATE_AS blake2s_ctx_t *ctx, PRIVATE_AS const u3
     w3[1] = w[pos4 + 13];
     w3[2] = w[pos4 + 14];
     w3[3] = w[pos4 + 15];
-    
+
     blake2s_update_64 (ctx, w0, w1, w2, w3, 64);
   }
 
@@ -451,7 +451,7 @@ DECLSPEC void blake2s_transform_vector (PRIVATE_AS u32x *h, PRIVATE_AS const u32
   v[13] = BLAKE2S_IV_05; // ^ t1;
   v[14] = BLAKE2S_IV_06 ^ f0;
   v[15] = BLAKE2S_IV_07; // ^ f1;
-  
+
   BLAKE2S_ROUND_VECTOR ( 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15);
   BLAKE2S_ROUND_VECTOR (14, 10,  4,  8,  9, 15, 13,  6,  1, 12,  0,  2, 11,  7,  5,  3);
   BLAKE2S_ROUND_VECTOR (11,  8, 12,  0,  5,  2, 15, 13, 10, 14,  3,  6,  7,  1,  9,  4);
diff --git a/OpenCL/inc_hash_sm3.cl b/OpenCL/inc_hash_sm3.cl
index f2d53dc72..4fb51b9e0 100644
--- a/OpenCL/inc_hash_sm3.cl
+++ b/OpenCL/inc_hash_sm3.cl
@@ -41,7 +41,7 @@ DECLSPEC void sm3_transform (PRIVATE_AS const u32 *w0, PRIVATE_AS const u32 *w1,
   u32 wd_t = w3[1];
   u32 we_t = w3[2];
   u32 wf_t = w3[3];
- 
+
   // SM3 main loop, composed of 64 rounds (0 to 63).
   // The Compression Function (CF) and Message Expansion (ME) are executed step-by-step.
   // SM3_ROUND1_S use SM3_FF0 and SM3_GG0 functions for index 0 to 15 and SM3_ROUND2_S use SM3_FF1 and SM3_GG1 functions for index 16 to 63.
@@ -93,7 +93,7 @@ DECLSPEC void sm3_transform (PRIVATE_AS const u32 *w0, PRIVATE_AS const u32 *w1,
   wc_t = SM3_EXPAND_S(wc_t, w3_t, w9_t, wf_t, w6_t); SM3_ROUND2_S(a, b, c, d, e, f, g, h, SM3_T40, w8_t, w8_t ^ wc_t);
   wd_t = SM3_EXPAND_S(wd_t, w4_t, wa_t, w0_t, w7_t); SM3_ROUND2_S(d, a, b, c, h, e, f, g, SM3_T41, w9_t, w9_t ^ wd_t);
   we_t = SM3_EXPAND_S(we_t, w5_t, wb_t, w1_t, w8_t); SM3_ROUND2_S(c, d, a, b, g, h, e, f, SM3_T42, wa_t, wa_t ^ we_t);
-  wf_t = SM3_EXPAND_S(wf_t, w6_t, wc_t, w2_t, w9_t); SM3_ROUND2_S(b, c, d, a, f, g, h, e, SM3_T43, wb_t, wb_t ^ wf_t); 
+  wf_t = SM3_EXPAND_S(wf_t, w6_t, wc_t, w2_t, w9_t); SM3_ROUND2_S(b, c, d, a, f, g, h, e, SM3_T43, wb_t, wb_t ^ wf_t);
   w0_t = SM3_EXPAND_S(w0_t, w7_t, wd_t, w3_t, wa_t); SM3_ROUND2_S(a, b, c, d, e, f, g, h, SM3_T44, wc_t, wc_t ^ w0_t);
   w1_t = SM3_EXPAND_S(w1_t, w8_t, we_t, w4_t, wb_t); SM3_ROUND2_S(d, a, b, c, h, e, f, g, SM3_T45, wd_t, wd_t ^ w1_t);
   w2_t = SM3_EXPAND_S(w2_t, w9_t, wf_t, w5_t, wc_t); SM3_ROUND2_S(c, d, a, b, g, h, e, f, SM3_T46, we_t, we_t ^ w2_t);
@@ -928,7 +928,7 @@ DECLSPEC void sm3_final (PRIVATE_AS sm3_ctx_t *ctx)
   const int pos = ctx->len & 63;
 
   append_0x80_4x4_S (ctx->w0, ctx->w1, ctx->w2, ctx->w3, pos ^ 3);
-  
+
   if (pos >= 56)
   {
     sm3_transform (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
@@ -986,7 +986,7 @@ DECLSPEC void sm3_transform_vector (PRIVATE_AS const u32x *w0, PRIVATE_AS const
   u32x wd_t = w3[1];
   u32x we_t = w3[2];
   u32x wf_t = w3[3];
-  
+
   // SM3 main loop, composed of 64 rounds (0 to 63).
   // The Compression Function (CF) and Message Expansion (ME) are executed step-by-step.
   // SM3_ROUND1 use SM3_FF0 and SM3_GG0 functions for index 0 to 15 and SM3_ROUND2 use SM3_FF1 and SM3_GG1 functions for index 16 to 63.
@@ -1038,7 +1038,7 @@ DECLSPEC void sm3_transform_vector (PRIVATE_AS const u32x *w0, PRIVATE_AS const
   wc_t = SM3_EXPAND(wc_t, w3_t, w9_t, wf_t, w6_t); SM3_ROUND2(a, b, c, d, e, f, g, h, SM3_T40, w8_t, w8_t ^ wc_t);
   wd_t = SM3_EXPAND(wd_t, w4_t, wa_t, w0_t, w7_t); SM3_ROUND2(d, a, b, c, h, e, f, g, SM3_T41, w9_t, w9_t ^ wd_t);
   we_t = SM3_EXPAND(we_t, w5_t, wb_t, w1_t, w8_t); SM3_ROUND2(c, d, a, b, g, h, e, f, SM3_T42, wa_t, wa_t ^ we_t);
-  wf_t = SM3_EXPAND(wf_t, w6_t, wc_t, w2_t, w9_t); SM3_ROUND2(b, c, d, a, f, g, h, e, SM3_T43, wb_t, wb_t ^ wf_t); 
+  wf_t = SM3_EXPAND(wf_t, w6_t, wc_t, w2_t, w9_t); SM3_ROUND2(b, c, d, a, f, g, h, e, SM3_T43, wb_t, wb_t ^ wf_t);
   w0_t = SM3_EXPAND(w0_t, w7_t, wd_t, w3_t, wa_t); SM3_ROUND2(a, b, c, d, e, f, g, h, SM3_T44, wc_t, wc_t ^ w0_t);
   w1_t = SM3_EXPAND(w1_t, w8_t, we_t, w4_t, wb_t); SM3_ROUND2(d, a, b, c, h, e, f, g, SM3_T45, wd_t, wd_t ^ w1_t);
   w2_t = SM3_EXPAND(w2_t, w9_t, wf_t, w5_t, wc_t); SM3_ROUND2(c, d, a, b, g, h, e, f, SM3_T46, we_t, we_t ^ w2_t);
diff --git a/OpenCL/m10400_a0-optimized.cl b/OpenCL/m10400_a0-optimized.cl
index afdd6ac1c..e442a7e8b 100644
--- a/OpenCL/m10400_a0-optimized.cl
+++ b/OpenCL/m10400_a0-optimized.cl
@@ -20,22 +20,24 @@
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10400_a1-optimized.cl b/OpenCL/m10400_a1-optimized.cl
index 4247d2cc0..3c0165749 100644
--- a/OpenCL/m10400_a1-optimized.cl
+++ b/OpenCL/m10400_a1-optimized.cl
@@ -18,22 +18,24 @@
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10400_a3-optimized.cl b/OpenCL/m10400_a3-optimized.cl
index 096d2e172..8687ae809 100644
--- a/OpenCL/m10400_a3-optimized.cl
+++ b/OpenCL/m10400_a3-optimized.cl
@@ -18,22 +18,24 @@
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10410_a0-optimized.cl b/OpenCL/m10410_a0-optimized.cl
index cdf6145ce..aa1acad0b 100644
--- a/OpenCL/m10410_a0-optimized.cl
+++ b/OpenCL/m10410_a0-optimized.cl
@@ -20,22 +20,24 @@
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10410_a1-optimized.cl b/OpenCL/m10410_a1-optimized.cl
index 6e2467a78..b37624c5b 100644
--- a/OpenCL/m10410_a1-optimized.cl
+++ b/OpenCL/m10410_a1-optimized.cl
@@ -18,22 +18,24 @@
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10410_a3-optimized.cl b/OpenCL/m10410_a3-optimized.cl
index 44a4f8789..5e789cca8 100644
--- a/OpenCL/m10410_a3-optimized.cl
+++ b/OpenCL/m10410_a3-optimized.cl
@@ -18,22 +18,24 @@
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10420_a0-optimized.cl b/OpenCL/m10420_a0-optimized.cl
index ab069e9a1..32b1df8c1 100644
--- a/OpenCL/m10420_a0-optimized.cl
+++ b/OpenCL/m10420_a0-optimized.cl
@@ -30,22 +30,24 @@ CONSTANT_VK u32a padding[8] =
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10420_a1-optimized.cl b/OpenCL/m10420_a1-optimized.cl
index 25dad86a7..5c2ef872d 100644
--- a/OpenCL/m10420_a1-optimized.cl
+++ b/OpenCL/m10420_a1-optimized.cl
@@ -28,22 +28,24 @@ CONSTANT_VK u32a padding[8] =
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10420_a3-optimized.cl b/OpenCL/m10420_a3-optimized.cl
index 06e0ac3b0..797c7d16b 100644
--- a/OpenCL/m10420_a3-optimized.cl
+++ b/OpenCL/m10420_a3-optimized.cl
@@ -28,22 +28,24 @@ CONSTANT_VK u32a padding[8] =
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10500-pure.cl b/OpenCL/m10500-pure.cl
index 905b88f5a..f45c40d42 100644
--- a/OpenCL/m10500-pure.cl
+++ b/OpenCL/m10500-pure.cl
@@ -17,22 +17,24 @@
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10700-optimized.cl b/OpenCL/m10700-optimized.cl
index 488ddf58e..f037f466b 100644
--- a/OpenCL/m10700-optimized.cl
+++ b/OpenCL/m10700-optimized.cl
@@ -19,22 +19,24 @@
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m10700-pure.cl b/OpenCL/m10700-pure.cl
index 81e67da1e..327c76e71 100644
--- a/OpenCL/m10700-pure.cl
+++ b/OpenCL/m10700-pure.cl
@@ -25,22 +25,24 @@
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
diff --git a/OpenCL/m25400-pure.cl b/OpenCL/m25400-pure.cl
index 8ab75831c..6ad2d1034 100644
--- a/OpenCL/m25400-pure.cl
+++ b/OpenCL/m25400-pure.cl
@@ -38,6 +38,8 @@ typedef struct pdf
   u32 rc4key[2];
   u32 rc4data[2];
 
+  int P_minus;
+
 } pdf_t;
 
 typedef struct pdf14_tmp
diff --git a/OpenCL/m31000_a0-optimized.cl b/OpenCL/m31000_a0-optimized.cl
index fbebe24f4..e3b9926ac 100644
--- a/OpenCL/m31000_a0-optimized.cl
+++ b/OpenCL/m31000_a0-optimized.cl
@@ -185,7 +185,7 @@ KERNEL_FQ void m31000_s04 (KERN_ATTR_RULES ())
     const u32x r1 = h[DGST_R1];
     const u32x r2 = h[DGST_R2];
     const u32x r3 = h[DGST_R3];
-    
+
     COMPARE_S_SIMD (r0, r1, r2, r3);
   }
 }
diff --git a/OpenCL/m31000_a0-pure.cl b/OpenCL/m31000_a0-pure.cl
index d6fdb0a51..81919e0ff 100644
--- a/OpenCL/m31000_a0-pure.cl
+++ b/OpenCL/m31000_a0-pure.cl
@@ -47,7 +47,7 @@ KERNEL_FQ void m31000_mxx (KERN_ATTR_RULES ())
     blake2s_init   (&ctx);
     blake2s_update (&ctx, tmp.i, tmp.pw_len);
     blake2s_final  (&ctx);
-    
+
     const u32 r0 = ctx.h[DGST_R0];
     const u32 r1 = ctx.h[DGST_R1];
     const u32 r2 = ctx.h[DGST_R2];
diff --git a/docs/changes.txt b/docs/changes.txt
index 9d081b15c..17662ae20 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -29,6 +29,12 @@
 - Added hash-mode: md5(md5($salt).md5(md5($pass)))
 - Added hash-mode: md5(md5(md5($pass).$salt1).$salt2)
 
+##
+## Features
+##
+
+- Added new feature (-Y) that creates N virtual instances for each device in your system at the cost of N times the device memory consumption
+
 ##
 ## Performance
 ##
@@ -46,6 +52,7 @@
 - Fixed incorrect plaintext check for 25400 and 26610. Increased plaintext check to 32 bytes to prevent false positives.
 - Fixed bug in --stdout that caused certain rules to malfunction
 - Fixed incompatible pointer types (salt1 and salt2 buf) in 3730 a3 kernel
+- Handle signed/unsigned PDF permission P value for all PDF hash-modes
 
 ##
 ## Technical
diff --git a/extra/tab_completion/hashcat.sh b/extra/tab_completion/hashcat.sh
index fa403c580..7ad527905 100644
--- a/extra/tab_completion/hashcat.sh
+++ b/extra/tab_completion/hashcat.sh
@@ -425,9 +425,9 @@ _hashcat ()
   local HIDDEN_FILES_AGGRESSIVE="${HIDDEN_FILES}|hcmask|hcchr"
   local BUILD_IN_CHARSETS='?l ?u ?d ?a ?b ?s ?h ?H'
 
-  local SHORT_OPTS="-m -a -V -h -b -t -T -o -p -c -d -D -w -n -u -j -k -r -g -1 -2 -3 -4 -i -I -s -l -O -S -z -M"
-  local LONG_OPTS="--hash-type --attack-mode --version --help --quiet --benchmark --benchmark-all --hex-salt --hex-wordlist --hex-charset --force --status --status-json --status-timer --stdin-timeout-abort --machine-readable --loopback --markov-hcstat2 --markov-disable --markov-inverse --markov-classic --markov-threshold --runtime --session --speed-only --progress-only --restore --restore-file-path --restore-disable --outfile --outfile-format --outfile-autohex-disable --outfile-check-timer --outfile-check-dir --wordlist-autohex-disable --separator --show --deprecated-check-disable --left --username --remove --remove-timer --potfile-disable --potfile-path --debug-mode --debug-file --induction-dir --segment-size --bitmap-min --bitmap-max --cpu-affinity --example-hashes --hash-info --backend-ignore-cuda --backend-ignore-opencl --backend-ignore-hip --backend-ignore-metal --backend-info --backend-devices --opencl-device-types --backend-vector-width --workload-profile --kernel-accel --kernel-loops --kernel-threads --spin-damp --hwmon-disable --hwmon-temp-abort --skip --limit --keyspace --rule-left --rule-right --rules-file --generate-rules --generate-rules-func-min --generate-rules-func-max --generate-rules-func-sel --generate-rules-seed --custom-charset1 --custom-charset2 --custom-charset3 --custom-charset4 --hook-threads --increment --increment-min --increment-max --logfile-disable --scrypt-tmto --keyboard-layout-mapping --truecrypt-keyfiles --veracrypt-keyfiles --veracrypt-pim-start --veracrypt-pim-stop --stdout --keep-guessing --hccapx-message-pair --nonce-error-corrections --encoding-from --encoding-to --optimized-kernel-enable --multiply-accel-disable --self-test-disable --slow-candidates --brain-server --brain-server-timer --brain-client --brain-client-features --brain-host --brain-port --brain-session --brain-session-whitelist --brain-password --identify"
-  local OPTIONS="-m -a -t -o -p -c -d -w -n -u -j -k -r -g -1 -2 -3 -4 -s -l --hash-type --attack-mode --status-timer --stdin-timeout-abort --markov-hcstat2 --markov-threshold --runtime --session --outfile --outfile-format --outfile-check-timer --outfile-check-dir --separator --remove-timer --potfile-path --restore-file-path --debug-mode --debug-file --induction-dir --segment-size --bitmap-min --bitmap-max --cpu-affinity --backend-devices --opencl-device-types --backend-vector-width --workload-profile --kernel-accel --kernel-loops --kernel-threads --spin-damp --hwmon-temp-abort --skip --limit --rule-left --rule-right --rules-file --generate-rules --generate-rules-func-min --generate-rules-func-max --generate-rules-func-sel --generate-rules-seed --custom-charset1 --custom-charset2 --custom-charset3 --custom-charset4 --hook-threads --increment-min --increment-max --scrypt-tmto --keyboard-layout-mapping --truecrypt-keyfiles --veracrypt-keyfiles --veracrypt-pim-start --veracrypt-pim-stop --hccapx-message-pair --nonce-error-corrections --encoding-from --encoding-to --brain-server-timer --brain-client-features --brain-host --brain-password --brain-port --brain-session --brain-session-whitelist"
+  local SHORT_OPTS="-m -a -V -h -b -t -T -o -p -c -d -D -w -n -u -j -k -r -g -1 -2 -3 -4 -i -I -s -l -O -S -z -M -Y"
+  local LONG_OPTS="--hash-type --attack-mode --version --help --quiet --benchmark --benchmark-all --hex-salt --hex-wordlist --hex-charset --force --status --status-json --status-timer --stdin-timeout-abort --machine-readable --loopback --markov-hcstat2 --markov-disable --markov-inverse --markov-classic --markov-threshold --runtime --session --speed-only --progress-only --restore --restore-file-path --restore-disable --outfile --outfile-format --outfile-autohex-disable --outfile-check-timer --outfile-check-dir --wordlist-autohex-disable --separator --show --deprecated-check-disable --left --username --remove --remove-timer --potfile-disable --potfile-path --debug-mode --debug-file --induction-dir --segment-size --bitmap-min --bitmap-max --cpu-affinity --example-hashes --hash-info --backend-ignore-cuda --backend-ignore-opencl --backend-ignore-hip --backend-ignore-metal --backend-info --backend-devices --backend-devices-virtual --opencl-device-types --backend-vector-width --workload-profile --kernel-accel --kernel-loops --kernel-threads --spin-damp --hwmon-disable --hwmon-temp-abort --skip --limit --keyspace --rule-left --rule-right --rules-file --generate-rules --generate-rules-func-min --generate-rules-func-max --generate-rules-func-sel --generate-rules-seed --custom-charset1 --custom-charset2 --custom-charset3 --custom-charset4 --hook-threads --increment --increment-min --increment-max --logfile-disable --scrypt-tmto --keyboard-layout-mapping --truecrypt-keyfiles --veracrypt-keyfiles --veracrypt-pim-start --veracrypt-pim-stop --stdout --keep-guessing --hccapx-message-pair --nonce-error-corrections --encoding-from --encoding-to --optimized-kernel-enable --multiply-accel-disable --self-test-disable --slow-candidates --brain-server --brain-server-timer --brain-client --brain-client-features --brain-host --brain-port --brain-session --brain-session-whitelist --brain-password --identify"
+  local OPTIONS="-m -a -t -o -p -c -d -w -n -u -j -k -r -g -1 -2 -3 -4 -s -l --hash-type --attack-mode --status-timer --stdin-timeout-abort --markov-hcstat2 --markov-threshold --runtime --session --outfile --outfile-format --outfile-check-timer --outfile-check-dir --separator --remove-timer --potfile-path --restore-file-path --debug-mode --debug-file --induction-dir --segment-size --bitmap-min --bitmap-max --cpu-affinity --backend-devices --backend-devices-virtual --opencl-device-types --backend-vector-width --workload-profile --kernel-accel --kernel-loops --kernel-threads --spin-damp --hwmon-temp-abort --skip --limit --rule-left --rule-right --rules-file --generate-rules --generate-rules-func-min --generate-rules-func-max --generate-rules-func-sel --generate-rules-seed --custom-charset1 --custom-charset2 --custom-charset3 --custom-charset4 --hook-threads --increment-min --increment-max --scrypt-tmto --keyboard-layout-mapping --truecrypt-keyfiles --veracrypt-keyfiles --veracrypt-pim-start --veracrypt-pim-stop --hccapx-message-pair --nonce-error-corrections --encoding-from --encoding-to --brain-server-timer --brain-client-features --brain-host --brain-password --brain-port --brain-session --brain-session-whitelist"
 
   COMPREPLY=()
   local cur="${COMP_WORDS[COMP_CWORD]}"
diff --git a/include/backend.h b/include/backend.h
index f78a3aff4..117452740 100644
--- a/include/backend.h
+++ b/include/backend.h
@@ -39,6 +39,8 @@ int  backend_session_update_combinator      (hashcat_ctx_t *hashcat_ctx);
 int  backend_session_update_mp              (hashcat_ctx_t *hashcat_ctx);
 int  backend_session_update_mp_rl           (hashcat_ctx_t *hashcat_ctx, const u32 css_cnt_l, const u32 css_cnt_r);
 
+u32  backend_device_idx_real_from_virtual   (const u32 device_idx, const u32 backend_devices_virtual);
+
 void generate_source_kernel_filename        (const bool slow_candidates, const u32 attack_exec, const u32 attack_kern, const u32 kern_type, const u32 opti_type, char *shared_dir, char *source_file);
 void generate_cached_kernel_filename        (const bool slow_candidates, const u32 attack_exec, const u32 attack_kern, const u32 kern_type, const u32 opti_type, char *cache_dir, const char *device_name_chksum, char *cached_file, bool is_metal);
 void generate_source_kernel_shared_filename (char *shared_dir, char *source_file);
diff --git a/include/types.h b/include/types.h
index 506fc07ea..9570189cb 100644
--- a/include/types.h
+++ b/include/types.h
@@ -628,6 +628,7 @@ typedef enum user_options_defaults
   ADVICE_DISABLE           = false,
   ATTACK_MODE              = ATTACK_MODE_STRAIGHT,
   AUTODETECT               = false,
+  BACKEND_DEVICES_VIRTUAL  = 1,
   BENCHMARK_ALL            = false,
   BENCHMARK                = false,
   BITMAP_MAX               = 18,
@@ -728,6 +729,7 @@ typedef enum user_options_map
   IDX_ADVICE_DISABLE            = 0xff00,
   IDX_ATTACK_MODE               = 'a',
   IDX_BACKEND_DEVICES           = 'd',
+  IDX_BACKEND_DEVICES_VIRTUAL   = 'Y',
   IDX_BACKEND_IGNORE_CUDA       = 0xff01,
   IDX_BACKEND_IGNORE_HIP        = 0xff02,
   IDX_BACKEND_IGNORE_METAL      = 0xff03,
@@ -1073,6 +1075,7 @@ typedef struct hashconfig
   bool forced_jit_compile;
 
   u32 pwdump_column;
+
 } hashconfig_t;
 
 typedef struct pw_pre
@@ -1876,6 +1879,7 @@ typedef struct backend_ctx
   int                 backend_device_from_opencl_platform[CL_PLATFORMS_MAX][DEVICES_MAX]; // from opencl device index to backend device index (by platform)
 
   int                 backend_devices_cnt;
+  int                 backend_devices_virtual;
   int                 backend_devices_active;
 
   int                 cuda_devices_cnt;
@@ -2396,6 +2400,7 @@ typedef struct user_options
   const char  *rule_buf_r;
   const char  *session;
   u32          attack_mode;
+  u32          backend_devices_virtual;
   u32          backend_info;
   u32          bitmap_max;
   u32          bitmap_min;
diff --git a/rules/stacking58.rule b/rules/stacking58.rule
new file mode 100644
index 000000000..a7444e68f
--- /dev/null
+++ b/rules/stacking58.rule
@@ -0,0 +1,81 @@
+## This rule file is designed to act as a base for usage in a rule stacking runs.
+##
+## For instance: $ hashcat hash.txt word.txt -r stacking58.rule -r stacking58.rule -r stacking58.rule
+##
+## This automatically produces a rule set of 195112 rules. These include well known efficient rules like:
+##
+## :
+## $1 
+## $1 $3
+## $1 $2 $3
+## $!
+## c $!
+## ...
+##
+
+:
+
+c
+u
+
+d
+
+r
+
+[
+]
+
+{
+}
+
+^0
+^1
+^2
+^3
+^4
+^5
+^6
+^7
+^8
+^9
+^ 
+^!
+^#
+^%
+^&
+^*
+^-
+^.
+^@
+^^
+^_
+
+$0
+$1
+$2
+$3
+$4
+$5
+$6
+$7
+$8
+$9
+$ 
+$!
+$#
+$%
+$&
+$*
+$-
+$.
+$@
+$^
+$_
+$$
+
+sa@
+se3
+si!
+si1
+so0
+ss$
diff --git a/rules/top10_2023.rule b/rules/top10_2023.rule
new file mode 100644
index 000000000..46df09995
--- /dev/null
+++ b/rules/top10_2023.rule
@@ -0,0 +1,10 @@
+:
+$1
+$1 $2
+$1 $2 $3
+c
+u
+$!
+d
+so0 si1 se3 ss$ sa@
+$2 $0 $2 $3
diff --git a/src/backend.c b/src/backend.c
index 010e16e26..506312f07 100644
--- a/src/backend.c
+++ b/src/backend.c
@@ -617,6 +617,11 @@ static bool write_kernel_binary (hashcat_ctx_t *hashcat_ctx, const char *kernel_
   return true;
 }
 
+u32 backend_device_idx_real_from_virtual (const u32 device_idx, const u32 backend_devices_virtual)
+{
+  return device_idx / backend_devices_virtual;
+}
+
 void generate_source_kernel_filename (const bool slow_candidates, const u32 attack_exec, const u32 attack_kern, const u32 kern_type, const u32 opti_type, char *shared_dir, char *source_file)
 {
   if (opti_type & OPTI_TYPE_OPTIMIZED_KERNEL)
@@ -4855,6 +4860,13 @@ int backend_ctx_init (hashcat_ctx_t *hashcat_ctx)
           }
         }
 
+        opencl_platform_devices_cnt *= user_options->backend_devices_virtual;
+
+        for (int i = opencl_platform_devices_cnt - 1; i >= 0; i--)
+        {
+          opencl_platform_devices[i] = opencl_platform_devices[backend_device_idx_real_from_virtual (i, user_options->backend_devices_virtual)];
+        }
+
         opencl_platforms_devices[opencl_platforms_idx]     = opencl_platform_devices;
         opencl_platforms_devices_cnt[opencl_platforms_idx] = opencl_platform_devices_cnt;
       }
@@ -5025,6 +5037,8 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
       cuda_close (hashcat_ctx);
     }
 
+    cuda_devices_cnt *= user_options->backend_devices_virtual;
+
     backend_ctx->cuda_devices_cnt = cuda_devices_cnt;
 
     // device specific
@@ -5033,6 +5047,8 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
     {
       const u32 device_id = backend_devices_idx;
 
+      const u32 cuda_devices_idx_real = backend_device_idx_real_from_virtual (cuda_devices_idx, user_options->backend_devices_virtual);
+
       hc_device_param_t *device_param = &devices_param[backend_devices_idx];
 
       device_param->device_id = device_id;
@@ -5041,7 +5057,7 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
 
       CUdevice cuda_device;
 
-      if (hc_cuDeviceGet (hashcat_ctx, &cuda_device, cuda_devices_idx) == -1)
+      if (hc_cuDeviceGet (hashcat_ctx, &cuda_device, cuda_devices_idx_real) == -1)
       {
         device_param->skipped = true;
 
@@ -5432,6 +5448,8 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
       hip_close (hashcat_ctx);
     }
 
+    hip_devices_cnt *= user_options->backend_devices_virtual;
+
     backend_ctx->hip_devices_cnt = hip_devices_cnt;
 
     // device specific
@@ -5440,6 +5458,8 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
     {
       const u32 device_id = backend_devices_idx;
 
+      const u32 hip_devices_idx_real = backend_device_idx_real_from_virtual (hip_devices_idx, user_options->backend_devices_virtual);
+
       hc_device_param_t *device_param = &devices_param[backend_devices_idx];
 
       device_param->device_id = device_id;
@@ -5448,7 +5468,7 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
 
       hipDevice_t hip_device;
 
-      if (hc_hipDeviceGet (hashcat_ctx, &hip_device, hip_devices_idx) == -1)
+      if (hc_hipDeviceGet (hashcat_ctx, &hip_device, hip_devices_idx_real) == -1)
       {
         device_param->skipped = true;
 
@@ -5860,6 +5880,8 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
       mtl_close (hashcat_ctx);
     }
 
+    metal_devices_cnt *= user_options->backend_devices_virtual;
+
     backend_ctx->metal_devices_cnt = metal_devices_cnt;
 
     // device specific
@@ -5868,6 +5890,8 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
     {
       const u32 device_id = backend_devices_idx;
 
+      const u32 metal_devices_idx_real = backend_device_idx_real_from_virtual (metal_devices_idx, user_options->backend_devices_virtual);
+
       hc_device_param_t *device_param = &devices_param[backend_devices_idx];
 
       device_param->device_id = device_id;
@@ -5876,7 +5900,7 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
 
       mtl_device_id metal_device = NULL;
 
-      if (hc_mtlDeviceGet (hashcat_ctx, &metal_device, metal_devices_idx) == -1)
+      if (hc_mtlDeviceGet (hashcat_ctx, &metal_device, metal_devices_idx_real) == -1)
       {
         device_param->skipped = true;
 
diff --git a/src/modules/module_10400.c b/src/modules/module_10400.c
index 05bd67c95..e7352fae2 100644
--- a/src/modules/module_10400.c
+++ b/src/modules/module_10400.c
@@ -44,22 +44,24 @@ const char *module_st_pass        (MAYBE_UNUSED const hashconfig_t *hashconfig,
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
@@ -214,6 +216,10 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 
   // validate data
 
+  pdf->P_minus = 0;
+
+  if (P_pos[0] == 0x2d) pdf->P_minus = 1;
+
   const int V = strtol ((const char *) V_pos, NULL, 10);
   const int R = strtol ((const char *) R_pos, NULL, 10);
   const int P = strtol ((const char *) P_pos, NULL, 10);
@@ -291,7 +297,11 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 {
   const pdf_t *pdf = (const pdf_t *) esalt_buf;
 
-  const int line_len = snprintf (line_buf, line_size, "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x",
+  char *line_format = "$pdf$%d*%d*%d*%u*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x";
+
+  if (pdf->P_minus == 1) line_format = "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x";
+
+  const int line_len = snprintf (line_buf, line_size, line_format,
     pdf->V,
     pdf->R,
     40,
diff --git a/src/modules/module_10410.c b/src/modules/module_10410.c
index cdf598787..9aa05f47f 100644
--- a/src/modules/module_10410.c
+++ b/src/modules/module_10410.c
@@ -46,22 +46,24 @@ const char *module_st_pass        (MAYBE_UNUSED const hashconfig_t *hashconfig,
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
@@ -235,6 +237,10 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 
   // validate data
 
+  pdf->P_minus = 0;
+
+  if (P_pos[0] == 0x2d) pdf->P_minus = 1;
+
   const int V = strtol ((const char *) V_pos, NULL, 10);
   const int R = strtol ((const char *) R_pos, NULL, 10);
   const int P = strtol ((const char *) P_pos, NULL, 10);
@@ -312,7 +318,11 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 {
   const pdf_t *pdf = (const pdf_t *) esalt_buf;
 
-  const int line_len = snprintf (line_buf, line_size, "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x",
+  char *line_format = "$pdf$%d*%d*%d*%u*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x";
+
+  if (pdf->P_minus == 1) line_format = "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x";
+
+  const int line_len = snprintf (line_buf, line_size, line_format,
     pdf->V,
     pdf->R,
     40,
diff --git a/src/modules/module_10420.c b/src/modules/module_10420.c
index 908021b3b..397c152d3 100644
--- a/src/modules/module_10420.c
+++ b/src/modules/module_10420.c
@@ -45,22 +45,24 @@ const char *module_st_pass        (MAYBE_UNUSED const hashconfig_t *hashconfig,
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
@@ -222,6 +224,10 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 
   // validate data
 
+  pdf->P_minus = 0;
+
+  if (P_pos[0] == 0x2d) pdf->P_minus = 1;
+
   const int V = strtol ((const char *) V_pos, NULL, 10);
   const int R = strtol ((const char *) R_pos, NULL, 10);
   const int P = strtol ((const char *) P_pos, NULL, 10);
@@ -322,7 +328,11 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 
   const u8 *rc4key = (const u8 *) pdf->rc4key;
 
-  const int line_len = snprintf (line_buf, line_size, "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x:%02x%02x%02x%02x%02x",
+  char *line_format = "$pdf$%d*%d*%d*%u*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x:%02x%02x%02x%02x%02x";
+
+  if (pdf->P_minus == 1) line_format = "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x:%02x%02x%02x%02x%02x";
+
+  const int line_len = snprintf (line_buf, line_size, line_format,
     pdf->V,
     pdf->R,
     40,
diff --git a/src/modules/module_10500.c b/src/modules/module_10500.c
index c253847cd..3cf1e08c1 100644
--- a/src/modules/module_10500.c
+++ b/src/modules/module_10500.c
@@ -45,22 +45,24 @@ const char *module_st_pass        (MAYBE_UNUSED const hashconfig_t *hashconfig,
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
+
+  int P_minus;
 
 } pdf_t;
 
@@ -245,6 +247,10 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 
   // validate data
 
+  pdf->P_minus = 0;
+
+  if (P_pos[0] == 0x2d) pdf->P_minus = 1;
+
   const int V = strtol ((const char *) V_pos, NULL, 10);
   const int R = strtol ((const char *) R_pos, NULL, 10);
   const int P = strtol ((const char *) P_pos, NULL, 10);
@@ -379,7 +385,11 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 
   if (pdf->id_len == 32)
   {
-    line_len = snprintf (line_buf, line_size, "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x",
+    char *line_format = "$pdf$%d*%d*%d*%u*%d*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x";
+
+    if (pdf->P_minus == 1) line_format = "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x";
+
+    line_len = snprintf (line_buf, line_size, line_format,
       pdf->V,
       pdf->R,
       128,
@@ -416,7 +426,11 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
   }
   else
   {
-    line_len = snprintf (line_buf, line_size, "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x",
+    char *line_format = "$pdf$%d*%d*%d*%u*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x";
+
+    if (pdf->P_minus == 1) line_format = "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x";
+
+    line_len = snprintf (line_buf, line_size, line_format,
       pdf->V,
       pdf->R,
       128,
diff --git a/src/modules/module_10600.c b/src/modules/module_10600.c
index 4218bc019..8f12154d1 100644
--- a/src/modules/module_10600.c
+++ b/src/modules/module_10600.c
@@ -51,22 +51,22 @@ const char *module_st_pass        (MAYBE_UNUSED const hashconfig_t *hashconfig,
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
 
 } pdf_t;
 
diff --git a/src/modules/module_10700.c b/src/modules/module_10700.c
index 3f1e78b89..51d351c39 100644
--- a/src/modules/module_10700.c
+++ b/src/modules/module_10700.c
@@ -47,22 +47,22 @@ const char *module_st_pass        (MAYBE_UNUSED const hashconfig_t *hashconfig,
 
 typedef struct pdf
 {
-  int  V;
-  int  R;
-  int  P;
+  int V;
+  int R;
+  int P;
 
-  int  enc_md;
+  int enc_md;
 
-  u32  id_buf[8];
-  u32  u_buf[32];
-  u32  o_buf[32];
+  u32 id_buf[8];
+  u32 u_buf[32];
+  u32 o_buf[32];
 
-  int  id_len;
-  int  o_len;
-  int  u_len;
+  int id_len;
+  int o_len;
+  int u_len;
 
-  u32  rc4key[2];
-  u32  rc4data[2];
+  u32 rc4key[2];
+  u32 rc4data[2];
 
 } pdf_t;
 
@@ -71,7 +71,7 @@ typedef struct pdf17l8_tmp
   union
   {
     u32 dgst32[16];
-    u64  dgst64[8];
+    u64 dgst64[8];
   } d;
 
   u32 dgst_len;
diff --git a/src/modules/module_25400.c b/src/modules/module_25400.c
index baad6e6fd..f3c57908f 100644
--- a/src/modules/module_25400.c
+++ b/src/modules/module_25400.c
@@ -69,6 +69,8 @@ typedef struct pdf
   u32 rc4key[2];
   u32 rc4data[2];
 
+  int P_minus;
+
 } pdf_t;
 
 typedef struct pdf14_tmp
@@ -354,6 +356,10 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 
   // validate data
 
+  pdf->P_minus = 0;
+
+  if (P_pos[0] == 0x2d) pdf->P_minus = 1;
+
   const int V = strtol ((const char *) V_pos, NULL, 10);
   const int R = strtol ((const char *) R_pos, NULL, 10);
   const int P = strtol ((const char *) P_pos, NULL, 10);
@@ -568,9 +574,14 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
   int line_len = 0;
 
   pdf_t *pdf = (pdf_t *) esalt_buf;
+
   if (pdf->id_len == 32)
   {
-    line_len = snprintf (line_buf, line_size, "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x%s",
+    char *line_format = "$pdf$%d*%d*%d*%u*%d*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x%s";
+
+    if (pdf->P_minus == 1) line_format = "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x%s";
+
+    line_len = snprintf (line_buf, line_size, line_format,
       pdf->V,
       pdf->R,
       128,
@@ -608,7 +619,11 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
   }
   else
   {
-    line_len = snprintf (line_buf, line_size, "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x%s",
+    char *line_format = "$pdf$%d*%d*%d*%u*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x%s";
+
+    if (pdf->P_minus == 1) line_format = "$pdf$%d*%d*%d*%d*%d*%d*%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x*%d*%08x%08x%08x%08x%08x%08x%08x%08x%s";
+
+    line_len = snprintf (line_buf, line_size, line_format,
       pdf->V,
       pdf->R,
       128,
diff --git a/src/usage.c b/src/usage.c
index 7a6649c4e..21f67934a 100644
--- a/src/usage.c
+++ b/src/usage.c
@@ -99,6 +99,7 @@ static const char *const USAGE_BIG_PRE_HASHMODES[] =
   "     --backend-ignore-opencl    |      | Do not try to open OpenCL interface on startup       |",
   " -I, --backend-info             |      | Show system/evironment/backend API info              | -I or -II",
   " -d, --backend-devices          | Str  | Backend devices to use, separated with commas        | -d 1",
+  " -Y, --backend-devices-virtual  | Num  | Spawn X virtual instances for each real device       | -Y 8",
   " -D, --opencl-device-types      | Str  | OpenCL device-types to use, separated with commas    | -D 1",
   " -O, --optimized-kernel-enable  |      | Enable optimized kernels (limits password length)    |",
   " -M, --multiply-accel-disable   |      | Disable multiply kernel-accel with processor count   |",
diff --git a/src/user_options.c b/src/user_options.c
index 4ebb7c3be..4198fa3bc 100644
--- a/src/user_options.c
+++ b/src/user_options.c
@@ -21,9 +21,9 @@
 #endif
 
 #ifdef WITH_BRAIN
-static const char *const short_options = "hVvm:a:r:j:k:g:o:t:d:D:n:u:T:c:p:s:l:1:2:3:4:iIbw:OMSz";
+static const char *const short_options = "hVvm:a:r:j:k:g:o:t:d:D:n:u:T:c:p:s:l:1:2:3:4:iIbw:OMSY:z";
 #else
-static const char *const short_options = "hVvm:a:r:j:k:g:o:t:d:D:n:u:T:c:p:s:l:1:2:3:4:iIbw:OMS";
+static const char *const short_options = "hVvm:a:r:j:k:g:o:t:d:D:n:u:T:c:p:s:l:1:2:3:4:iIbw:OMSY:";
 #endif
 
 static char *const SEPARATOR = ":";
@@ -33,6 +33,7 @@ static const struct option long_options[] =
   {"advice-disable",            no_argument,       NULL, IDX_ADVICE_DISABLE},
   {"attack-mode",               required_argument, NULL, IDX_ATTACK_MODE},
   {"backend-devices",           required_argument, NULL, IDX_BACKEND_DEVICES},
+  {"backend-devices-virtual",   required_argument, NULL, IDX_BACKEND_DEVICES_VIRTUAL},
   {"backend-ignore-cuda",       no_argument,       NULL, IDX_BACKEND_IGNORE_CUDA},
   {"backend-ignore-hip",        no_argument,       NULL, IDX_BACKEND_IGNORE_HIP},
   #if defined (__APPLE__)
@@ -171,6 +172,7 @@ int user_options_init (hashcat_ctx_t *hashcat_ctx)
   user_options->attack_mode               = ATTACK_MODE;
   user_options->autodetect                = AUTODETECT;
   user_options->backend_devices           = NULL;
+  user_options->backend_devices_virtual   = BACKEND_DEVICES_VIRTUAL;
   user_options->backend_ignore_cuda       = BACKEND_IGNORE_CUDA;
   user_options->backend_ignore_hip        = BACKEND_IGNORE_HIP;
   #if defined (__APPLE__)
@@ -353,6 +355,7 @@ int user_options_getopt (hashcat_ctx_t *hashcat_ctx, int argc, char **argv)
       case IDX_INCREMENT_MIN:
       case IDX_INCREMENT_MAX:
       case IDX_HOOK_THREADS:
+      case IDX_BACKEND_DEVICES_VIRTUAL:
       #ifdef WITH_BRAIN
       case IDX_BRAIN_PORT:
       #endif
@@ -467,6 +470,7 @@ int user_options_getopt (hashcat_ctx_t *hashcat_ctx, int argc, char **argv)
       case IDX_BACKEND_IGNORE_OPENCL:     user_options->backend_ignore_opencl     = true;                            break;
       case IDX_BACKEND_INFO:              user_options->backend_info++;                                              break;
       case IDX_BACKEND_DEVICES:           user_options->backend_devices           = optarg;                          break;
+      case IDX_BACKEND_DEVICES_VIRTUAL:   user_options->backend_devices_virtual   = hc_strtoul (optarg, NULL, 10);   break;
       case IDX_BACKEND_VECTOR_WIDTH:      user_options->backend_vector_width      = hc_strtoul (optarg, NULL, 10);
                                           user_options->backend_vector_width_chgd = true;                            break;
       case IDX_OPENCL_DEVICE_TYPES:       user_options->opencl_device_types       = optarg;                          break;
@@ -559,7 +563,7 @@ int user_options_sanity (hashcat_ctx_t *hashcat_ctx)
     return -1;
   }
 
-#ifdef WITH_BRAIN
+  #ifdef WITH_BRAIN
   if ((user_options->brain_client == true) && (user_options->brain_server == true))
   {
     event_log_error (hashcat_ctx, "Can not have --brain-client and --brain-server at the same time.");
@@ -573,14 +577,14 @@ int user_options_sanity (hashcat_ctx_t *hashcat_ctx)
 
     return -1;
   }
-  
+
   if (user_options->brain_port > 65535)
   {
     event_log_error (hashcat_ctx, "Invalid brain port specified (greater than 65535).");
 
     return -1;
   }
-  
+
   if ((user_options->brain_client == true) && (user_options->brain_password_chgd == false))
   {
     event_log_error (hashcat_ctx, "Brain clients must specify --brain-password.");
@@ -612,17 +616,20 @@ int user_options_sanity (hashcat_ctx_t *hashcat_ctx)
   if (user_options->separator_chgd == true)
   {
     bool error = false;
+
     if ((strlen (user_options->separator) != 1) && (strlen (user_options->separator) != 4))
     {
         error = true;
     }
+
     if (strlen (user_options->separator) == 4)
     {
       if ((user_options->separator[0] == '0') && (user_options->separator[1] == 'x'))
       {
-        if (is_valid_hex_string ((u8 * ) (&(user_options->separator[2])), 2))
+        if (is_valid_hex_string ((u8 *) (&(user_options->separator[2])), 2))
         {
-          u8 sep = hex_to_u8 ((u8 * ) (&(user_options->separator[2])));
+          u8 sep = hex_to_u8 ((u8 *) (&(user_options->separator[2])));
+
           user_options->separator[0] = sep;
           user_options->separator[1] = 0;
         }
@@ -631,7 +638,8 @@ int user_options_sanity (hashcat_ctx_t *hashcat_ctx)
           error = true;
         }
       }
-      else{
+      else
+      {
         error = true;
       }
     }
@@ -738,6 +746,13 @@ int user_options_sanity (hashcat_ctx_t *hashcat_ctx)
     return -1;
   }
 
+  if (user_options->backend_devices_virtual == 0)
+  {
+    event_log_error (hashcat_ctx, "Invalid --backend-devices-virtual value specified.");
+
+    return -1;
+  }
+
   if (user_options->outfile_format == 0)
   {
     event_log_error (hashcat_ctx, "Invalid --outfile-format value specified.");
@@ -1010,7 +1025,7 @@ int user_options_sanity (hashcat_ctx_t *hashcat_ctx)
   if ((user_options->show == true) && (user_options->username == true))
   {
     event_log_error (hashcat_ctx, "Mixing --show with --username can cause exponential delay in output.");
-    
+
     return 0;
   }
 
@@ -2058,6 +2073,11 @@ void user_options_info (hashcat_ctx_t *hashcat_ctx)
       event_log_info (hashcat_ctx, "* --backend-devices=%s", user_options->backend_devices);
     }
 
+    if (user_options->backend_devices_virtual)
+    {
+      event_log_info (hashcat_ctx, "* --backend-devices-virtual=%u", user_options->backend_devices_virtual);
+    }
+
     if (user_options->opencl_device_types)
     {
       event_log_info (hashcat_ctx, "* --opencl-device-types=%s", user_options->opencl_device_types);
@@ -2117,6 +2137,11 @@ void user_options_info (hashcat_ctx_t *hashcat_ctx)
       event_log_info (hashcat_ctx, "# option: --backend-devices=%s", user_options->backend_devices);
     }
 
+    if (user_options->backend_devices_virtual)
+    {
+      event_log_info (hashcat_ctx, "# option: --backend-devices-virtual=%u", user_options->backend_devices_virtual);
+    }
+
     if (user_options->opencl_device_types)
     {
       event_log_info (hashcat_ctx, "# option: --opencl-device-types=%s", user_options->opencl_device_types);
@@ -3147,6 +3172,7 @@ void user_options_logger (hashcat_ctx_t *hashcat_ctx)
   logfile_top_uint64 (user_options->limit);
   logfile_top_uint64 (user_options->skip);
   logfile_top_uint   (user_options->attack_mode);
+  logfile_top_uint   (user_options->backend_devices_virtual);
   logfile_top_uint   (user_options->benchmark);
   logfile_top_uint   (user_options->benchmark_all);
   logfile_top_uint   (user_options->bitmap_max);
diff --git a/tools/2hashcat_tests/metamask2hashcat-test.py b/tools/2hashcat_tests/metamask2hashcat-test.py
index 3ee031f05..7c4ea1ba7 100644
--- a/tools/2hashcat_tests/metamask2hashcat-test.py
+++ b/tools/2hashcat_tests/metamask2hashcat-test.py
@@ -3,7 +3,7 @@
 from base64 import b64decode
 from hashlib import pbkdf2_hmac
 
-from Crypto.Cipher import AES 
+from Crypto.Cipher import AES
 
 #TODO perhaps load the vault from tools/2hashcat_tests/metamask2hashcat.json similar as in tools/metamask2hashcat.py
 vault = {"data":"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","iv":"h+BoIf2CQ5BEjaIOShFE7g==","salt":"jfGI3TXguhb8GPnKSXFrMzRk2NCEc131Gt5G3kZr5+s="}
@@ -38,4 +38,4 @@ print("Partially encrypted message (32 bytes):", plaintext.decode())
 
 cipher = AES.new(key, AES.MODE_GCM, nonce=iv)
 plaintext = cipher.decrypt(ciphertext[:450])
-print("Partially encrypted message (450 bytes):", plaintext.decode())
\ No newline at end of file
+print("Partially encrypted message (450 bytes):", plaintext.decode())
diff --git a/tools/test_modules/m26610.pm b/tools/test_modules/m26610.pm
index bde52a1f7..45dc4e18c 100644
--- a/tools/test_modules/m26610.pm
+++ b/tools/test_modules/m26610.pm
@@ -57,7 +57,7 @@ sub module_generate_hash
     # TODO now the data is all ASCII 'a', would be better to have it mimic the same structure as the reference data:
     # [{"type":"HD Key Tree","data":{"mnemonic":[112,97,121,109,101,110,116,32,117,112,115,101,116,32,109,101,116,97,108,32,99,104,97,112,116,101,114,32,114,117,110,32,97,100,109,105,116,32,109,101,97,115,117,114,101,32,114,101,109,105,110,100,32,115,117,112,112,108,121,32,104,111,112,101,32,101,110,101,109,121,32,104,101,100,103,101,104,111,103],"numberOfAccounts":1,"hdPath":"m/44'/60'/0'/0"}}]
     # generated from tools/2hashcat_tests/metamask2hashcat-test.py
-    $pt = "a" x ($ct_min_len + int (rand ($ct_max_len - $ct_min_len)) + 1); 
+    $pt = "a" x ($ct_min_len + int (rand ($ct_max_len - $ct_min_len)) + 1);
   }
 
   my $aes = Crypt::AuthEnc::GCM->new ("AES", $key, $iv_bin);
diff --git a/tunings/Alias.hctune b/tunings/Alias.hctune
index 67d2d0bb2..8d601961c 100644
--- a/tunings/Alias.hctune
+++ b/tunings/Alias.hctune
@@ -165,12 +165,26 @@ Tesla_P4                                        ALIAS_nv_sm50_or_higher
 Tesla_P40                                       ALIAS_nv_sm50_or_higher
 Tesla_P100                                      ALIAS_nv_sm50_or_higher
 Tesla_V100                                      ALIAS_nv_sm50_or_higher
+Tesla_T4                                        ALIAS_nv_sm50_or_higher
+
+L4                                              ALIAS_nv_sm50_or_higher
+
+A100-SXM4-40GB                                  ALIAS_nv_sm50_or_higher
+A100-SXM4-80GB                                  ALIAS_nv_sm50_or_higher
+A100-PCIE-40GB                                  ALIAS_nv_sm50_or_higher
+A100-PCIE-80GB                                  ALIAS_nv_sm50_or_higher
 
 Quadro_M2000                                    ALIAS_nv_sm50_or_higher
 Quadro_M4000                                    ALIAS_nv_sm50_or_higher
 Quadro_M5000                                    ALIAS_nv_sm50_or_higher
 Quadro_M6000                                    ALIAS_nv_sm50_or_higher
 
+Quadro_RTX_4000                                 ALIAS_nv_sm50_or_higher
+Quadro_RTX_5000                                 ALIAS_nv_sm50_or_higher
+Quadro_RTX_6000                                 ALIAS_nv_sm50_or_higher
+
+RTX_A6000                                       ALIAS_nv_sm50_or_higher
+
 TITAN_X                                         ALIAS_nv_sm50_or_higher
 TITAN_Xp                                        ALIAS_nv_sm50_or_higher
 TITAN_V                                         ALIAS_nv_sm50_or_higher
@@ -240,6 +254,8 @@ GeForce_RTX_4070_Ti                             ALIAS_nv_sm50_or_higher
 GeForce_RTX_4080                                ALIAS_nv_sm50_or_higher
 GeForce_RTX_4090                                ALIAS_nv_sm50_or_higher
 
+
+
 ##
 ## Unmapped GPU
 ##
diff --git a/tunings/README.md b/tunings/README.md
index e917b0b20..d56b9064a 100644
--- a/tunings/README.md
+++ b/tunings/README.md
@@ -20,6 +20,7 @@ Each file in this folder with the filename suffix .hctune will be automatically
 - Invalid lines are ignored
 - The Device-Name is the OpenCL Device-Name. It's shown on hashcat startup.
   - If the device contains spaces, replace all spaces with _ character.
+  - Device Names prefixed with 'NVIDIA' will be matched with or without 'NVIDIA' present in the alias. e.g. 'NVIDIA_Tesla_T4' vs 'Tesla_T4'
 - The Device-Name can be assigned an alias. This is useful if many devices share the same chip
   - If you assign an alias, make sure to not use the devices name directly
 - There's also a hard-wired Device-Name which matches all device types called: