diff -ru CryptX-0.026_11/META.json CryptX-0.026_12/META.json
--- CryptX-0.026_11/META.json	2016-01-03 22:30:13.000000000 +0100
+++ CryptX-0.026_12/META.json	2016-01-04 09:34:47.000000000 +0100
@@ -254,7 +254,7 @@
       },
       "CryptX" : {
          "file" : "lib/CryptX.pm",
-         "version" : "0.026_11"
+         "version" : "0.026_12"
       }
    },
    "release_status" : "testing",
@@ -266,6 +266,6 @@
          "url" : "https://github.com/DCIT/perl-CryptX"
       }
    },
-   "version" : "0.026_11",
+   "version" : "0.026_12",
    "x_serialization_backend" : "JSON::PP version 2.27300"
 }
diff -ru CryptX-0.026_11/META.yml CryptX-0.026_12/META.yml
--- CryptX-0.026_11/META.yml	2016-01-03 22:30:14.000000000 +0100
+++ CryptX-0.026_12/META.yml	2016-01-04 09:34:47.000000000 +0100
@@ -164,7 +164,7 @@
     file: lib/Crypt/PRNG/Yarrow.pm
   CryptX:
     file: lib/CryptX.pm
-    version: 0.026_11
+    version: 0.026_12
 requires:
   Exporter: '5.59'
   JSON::PP: '2.27102'
@@ -172,5 +172,5 @@
 resources:
   license: http://dev.perl.org/licenses/
   repository: https://github.com/DCIT/perl-CryptX
-version: 0.026_11
+version: 0.026_12
 x_serialization_backend: 'CPAN::Meta::YAML version 0.016'
diff -ru CryptX-0.026_11/lib/CryptX.pm CryptX-0.026_12/lib/CryptX.pm
--- CryptX-0.026_11/lib/CryptX.pm	2016-01-03 22:30:13.000000000 +0100
+++ CryptX-0.026_12/lib/CryptX.pm	2016-01-04 09:34:48.000000000 +0100
@@ -3,7 +3,7 @@
 use strict;
 use warnings ;
 
-our $VERSION = '0.026_11';
+our $VERSION = '0.026_12';
 
 use Exporter 'import';
 our @EXPORT_OK = qw( _encode_base64url _decode_base64url _encode_base64 _decode_base64 _decode_json _encode_json);
diff -ru CryptX-0.026_11/src/ltc/encauth/gcm/gcm_add_aad.c CryptX-0.026_12/src/ltc/encauth/gcm/gcm_add_aad.c
--- CryptX-0.026_11/src/ltc/encauth/gcm/gcm_add_aad.c	2016-01-03 22:30:13.000000000 +0100
+++ CryptX-0.026_12/src/ltc/encauth/gcm/gcm_add_aad.c	2016-01-04 09:34:47.000000000 +0100
@@ -46,7 +46,7 @@
       return err;
    }
 fprintf(stderr, "gcm_add_aad:X_0="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
-fprintf(stderr, "gcm_add_aad:Y_0="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->Y[i]); fprintf(stderr, "\n");
+fprintf(stderr, "gcm_add_aad:Y_0="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->Y[i]); fprintf(stderr, " buflen=%d totlen=%d\n", gcm->buflen, gcm->totlen);
    /* in IV mode? */
    if (gcm->mode == LTC_GCM_MODE_IV) {
       /* let's process the IV */
@@ -54,19 +54,23 @@
          for (x = 0; x < (unsigned long)gcm->buflen; x++) {
              gcm->X[x] ^= gcm->buf[x];
          }
+fprintf(stderr, "gcm_add_aad:X_1="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
          if (gcm->buflen) {
             gcm->totlen += gcm->buflen * CONST64(8);
             gcm_mult_h(gcm, gcm->X);
+fprintf(stderr, "gcm_add_aad:X_2="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
          }
 
          /* mix in the length */
          zeromem(gcm->buf, 8);
          STORE64H(gcm->totlen, gcm->buf+8);
+fprintf(stderr, "gcm_add_aad:X_3="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
          for (x = 0; x < 16; x++) {
              gcm->X[x] ^= gcm->buf[x];
          }
+fprintf(stderr, "gcm_add_aad:X_4="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
          gcm_mult_h(gcm, gcm->X);
-
+fprintf(stderr, "gcm_add_aad:X_5="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
          /* copy counter out */
          XMEMCPY(gcm->Y, gcm->X, 16);
          zeromem(gcm->X, 16);
@@ -104,18 +108,21 @@
 
 
    /* start adding AAD data to the state */
+fprintf(stderr, "gcm_add_aad:X_6="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
    for (; x < adatalen; x++) {
        gcm->X[gcm->buflen++] ^= *adata++;
-
+fprintf(stderr, "gcm_add_aad:X_7="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, " buflen=%d\n", gcm->buflen);
        if (gcm->buflen == 16) {
          /* GF mult it */
+fprintf(stderr, "gcm_add_aad:X_8="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
          gcm_mult_h(gcm, gcm->X);
+fprintf(stderr, "gcm_add_aad:X_9="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
          gcm->buflen = 0;
          gcm->totlen += 128;
       }
    }
-fprintf(stderr, "gcm_add_aad:X_1="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
-fprintf(stderr, "gcm_add_aad:Y_1="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->Y[i]); fprintf(stderr, "\n");
+fprintf(stderr, "gcm_add_aad:X_F="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->X[i]); fprintf(stderr, "\n");
+fprintf(stderr, "gcm_add_aad:Y_F="); for(i=0;i<16;i++) fprintf(stderr, "%02x", gcm->Y[i]); fprintf(stderr, " buflen=%d totlen=%d\n", gcm->buflen, gcm->totlen);
    return CRYPT_OK;
 }
 #endif
diff -ru CryptX-0.026_11/src/ltc/encauth/gcm/gcm_gf_mult.c CryptX-0.026_12/src/ltc/encauth/gcm/gcm_gf_mult.c
--- CryptX-0.026_11/src/ltc/encauth/gcm/gcm_gf_mult.c	2016-01-03 22:30:14.000000000 +0100
+++ CryptX-0.026_12/src/ltc/encauth/gcm/gcm_gf_mult.c	2016-01-04 09:34:48.000000000 +0100
@@ -83,8 +83,10 @@
 void gcm_gf_mult(const unsigned char *a, const unsigned char *b, unsigned char *c)
 {
    unsigned char Z[16], V[16];
-   unsigned x, y, z;
+   unsigned x, y, z, i;
 
+fprintf(stderr, "gcm_gf_mult:a="); for(i=0;i<16;i++) fprintf(stderr, "%02x", a[i]); fprintf(stderr, "\n");
+fprintf(stderr, "gcm_gf_mult:b="); for(i=0;i<16;i++) fprintf(stderr, "%02x", b[i]); fprintf(stderr, "\n");
    zeromem(Z, 16);
    XMEMCPY(V, a, 16);
    for (x = 0; x < 128; x++) {
@@ -98,6 +100,8 @@
        V[0] ^= poly[z];
    }
    XMEMCPY(c, Z, 16);
+fprintf(stderr, "gcm_gf_mult:V="); for(i=0;i<16;i++) fprintf(stderr, "%02x", V[i]); fprintf(stderr, "\n");
+fprintf(stderr, "gcm_gf_mult:c="); for(i=0;i<16;i++) fprintf(stderr, "%02x", c[i]); fprintf(stderr, "\n");
 }
 
 #else
diff -ru CryptX-0.026_11/src/ltc/encauth/gcm/gcm_mult_h.c CryptX-0.026_12/src/ltc/encauth/gcm/gcm_mult_h.c
--- CryptX-0.026_11/src/ltc/encauth/gcm/gcm_mult_h.c	2016-01-03 22:30:14.000000000 +0100
+++ CryptX-0.026_12/src/ltc/encauth/gcm/gcm_mult_h.c	2016-01-04 09:34:47.000000000 +0100
@@ -24,6 +24,7 @@
 void gcm_mult_h(gcm_state *gcm, unsigned char *I)
 {
    unsigned char T[16];
+   int i;
 #ifdef LTC_GCM_TABLES
    int x;
 #ifdef LTC_GCM_TABLES_SSE2
@@ -51,6 +52,7 @@
    gcm_gf_mult(gcm->H, I, T);
 #endif
    XMEMCPY(I, T, 16);
+fprintf(stderr, "gcm_mult_h:rv="); for(i=0;i<16;i++) fprintf(stderr, "%02x", I[i]); fprintf(stderr, "\n");
 }
 #endif