diff --git a/library/gcm.c b/library/gcm.c
new file mode 100644
index 0000000..e42c6d0
--- /dev/null
+++ b/library/gcm.c
@@ -0,0 +1,657 @@
+/*
+ *  NIST SP800-38D compliant GCM implementation
+ *
+ *  Copyright (C) 2006-2012, Brainspark B.V.
+ *
+ *  This file is part of PolarSSL (http://www.polarssl.org)
+ *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ *  All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ *  http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf
+ */
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_GCM_C)
+
+#include "polarssl/gcm.h"
+
+/*
+ * 32-bit integer manipulation macros (big endian)
+ */
+#ifndef GET_ULONG_BE
+#define GET_ULONG_BE(n,b,i)                             \
+{                                                       \
+    (n) = ( (unsigned long) (b)[(i)    ] << 24 )        \
+        | ( (unsigned long) (b)[(i) + 1] << 16 )        \
+        | ( (unsigned long) (b)[(i) + 2] <<  8 )        \
+        | ( (unsigned long) (b)[(i) + 3]       );       \
+}
+#endif
+
+#ifndef PUT_ULONG_BE
+#define PUT_ULONG_BE(n,b,i)                             \
+{                                                       \
+    (b)[(i)    ] = (unsigned char) ( (n) >> 24 );       \
+    (b)[(i) + 1] = (unsigned char) ( (n) >> 16 );       \
+    (b)[(i) + 2] = (unsigned char) ( (n) >>  8 );       \
+    (b)[(i) + 3] = (unsigned char) ( (n)       );       \
+}
+#endif
+
+static void gcm_gen_table( gcm_context *ctx )
+{
+    int i, j;
+    uint64_t hi, lo;
+    uint64_t vl, vh;
+    unsigned char h[16];
+    
+    memset( h, 0, 16 );
+    aes_crypt_ecb( &ctx->aes_ctx, AES_ENCRYPT, h, h );
+
+    ctx->HH[0] = 0;
+    ctx->HL[0] = 0;
+
+    GET_ULONG_BE( hi, h,  0  );
+    GET_ULONG_BE( lo, h,  4  );
+    vh = (uint64_t) hi << 32 | lo;
+
+    GET_ULONG_BE( hi, h,  8  );
+    GET_ULONG_BE( lo, h,  12 );
+    vl = (uint64_t) hi << 32 | lo;
+    
+    ctx->HL[8] = vl;
+    ctx->HH[8] = vh;
+
+    for( i = 4; i > 0; i >>= 1 )
+    {
+        uint32_t T = ( vl & 1 ) ? 0xe1000000U : 0;
+        vl  = ( vh << 63 ) | ( vl >> 1 );
+        vh  = ( vh >> 1 ) ^ ( (uint64_t) T << 32);
+
+        ctx->HL[i] = vl;
+        ctx->HH[i] = vh;
+    }
+
+    for (i = 2; i < 16; i <<= 1 )
+    {
+        uint64_t *HiL = ctx->HL + i, *HiH = ctx->HH + i;
+        vh = *HiH;
+        vl = *HiL;
+        for( j = 1; j < i; j++ )
+        {
+            HiH[j] = vh ^ ctx->HH[j];
+            HiL[j] = vl ^ ctx->HL[j];
+        }
+    }
+    
+}
+
+int gcm_init( gcm_context *ctx, const unsigned char *key, unsigned int keysize )
+{
+    int ret;
+
+    memset( ctx, 0, sizeof(gcm_context) );
+
+    if( ( ret = aes_setkey_enc( &ctx->aes_ctx, key, keysize ) ) != 0 )
+        return( ret );
+
+    gcm_gen_table( ctx );
+
+    return( 0 );
+}
+
+static const uint64_t last4[16] =
+{
+    0x0000, 0x1c20, 0x3840, 0x2460,
+    0x7080, 0x6ca0, 0x48c0, 0x54e0,
+    0xe100, 0xfd20, 0xd940, 0xc560,
+    0x9180, 0x8da0, 0xa9c0, 0xb5e0
+};
+
+void gcm_mult( gcm_context *ctx, const unsigned char x[16], unsigned char output[16] )
+{
+    int i = 0;
+    unsigned char z[16];
+    unsigned char v[16];
+    unsigned char lo, hi, rem;
+    uint64_t zh, zl;
+
+    memset( z, 0x00, 16 );
+    memcpy( v, x, 16 );
+
+    lo = x[15] & 0xf;
+    hi = x[15] >> 4;
+
+    zh = ctx->HH[lo];
+    zl = ctx->HL[lo];
+
+    for( i = 15; i >= 0; i-- )
+    {
+        lo = x[i] & 0xf;
+        hi = x[i] >> 4;
+
+        if( i != 15 )
+        {
+            rem = zl & 0xf;
+            zl = ( zh << 60 ) | ( zl >> 4 );
+            zh = ( zh >> 4 );
+            zh ^= (uint64_t) last4[rem] << 48;
+            zh ^= ctx->HH[lo];
+            zl ^= ctx->HL[lo];
+
+        }
+
+        rem = zl & 0xf;
+        zl = ( zh << 60 ) | ( zl >> 4 );
+        zh = ( zh >> 4 );
+        zh ^= (uint64_t) last4[rem] << 48;
+        zh ^= ctx->HH[hi];
+        zl ^= ctx->HL[hi];
+    }
+
+    PUT_ULONG_BE( zh >> 32, output, 0 );
+    PUT_ULONG_BE( zh, output, 4 );
+    PUT_ULONG_BE( zl >> 32, output, 8 );
+    PUT_ULONG_BE( zl, output, 12 );
+}
+
+int gcm_crypt_and_tag( gcm_context *ctx,
+                       int mode,
+                       size_t length,
+                       const unsigned char *iv,
+                       size_t iv_len,
+                       const unsigned char *add,
+                       size_t add_len,
+                       const unsigned char *input,
+                       unsigned char *output,
+                       size_t tag_len,
+                       unsigned char *tag )
+{
+    unsigned char h[16];
+    unsigned char y[16];
+    unsigned char ectr[16];
+    unsigned char buf[16];
+    unsigned char ghash[16];
+    unsigned char work_buf[16];
+    size_t i;
+    unsigned char cb;
+    const unsigned char *p;
+    unsigned char *out_p = output;
+    size_t use_len;
+    size_t orig_len = length * 8;
+    size_t orig_add_len = add_len * 8;
+    unsigned char **xor_p;
+
+    memset( h, 0x00, 16 );
+    memset( y, 0x00, 16 );
+    memset( work_buf, 0x00, 16 );
+    memset( ghash, 0x00, 16 );
+    memset( tag, 0x00, tag_len );
+    memset( buf, 0x00, 16 );
+
+    if( mode == GCM_ENCRYPT )
+        xor_p = (unsigned char **) &out_p;
+    else
+        xor_p = (unsigned char **) &p;
+
+    if( iv_len == 12 )
+    {
+        memcpy( y, iv, iv_len );
+        y[15] = 1;
+    }
+    else
+    {
+        memset( work_buf, 0x00, 16 );
+        PUT_ULONG_BE( iv_len * 8, work_buf, 12 );
+
+        p = iv;
+        while( iv_len > 0 )
+        {
+            use_len = ( iv_len < 16 ) ? iv_len : 16;
+
+            if( use_len == 16 )
+            {
+                ((uint64_t *) y)[0] ^= ((uint64_t *) p)[0];
+                ((uint64_t *) y)[1] ^= ((uint64_t *) p)[1];
+            }
+            else
+                for( i = 0; i < use_len; i++ )
+                    y[i] ^= p[i];
+        
+            gcm_mult( ctx, y, y );
+
+            iv_len -= use_len;
+            p += use_len;
+        }
+
+        ((uint64_t *) y)[0] ^= ((uint64_t *) work_buf)[0];
+        ((uint64_t *) y)[1] ^= ((uint64_t *) work_buf)[1];
+
+        gcm_mult( ctx, y, y );
+    }
+
+    aes_crypt_ecb( &ctx->aes_ctx, AES_ENCRYPT, y, ectr );
+    memcpy( tag, ectr, tag_len );
+
+    p = add;
+    while( add_len > 0 )
+    {
+        use_len = ( add_len < 16 ) ? add_len : 16;
+
+        if( use_len == 16 )
+        {
+            ((uint64_t *) buf)[0] ^= ((uint64_t *) p)[0];
+            ((uint64_t *) buf)[1] ^= ((uint64_t *) p)[1];
+        }
+        else
+            for( i = 0; i < use_len; i++ )
+                buf[i] ^= p[i];
+        
+        gcm_mult( ctx, buf, buf );
+
+        add_len -= use_len;
+        p += use_len;
+    }
+
+    p = input;
+    while( length > 0 )
+    {
+        use_len = ( length < 16 ) ? length : 16;
+
+        i = 15;
+        do {
+            y[i]++;
+            cb = y[i] == 0;
+        } while( i-- && cb );
+
+        aes_crypt_ecb( &ctx->aes_ctx, AES_ENCRYPT, y, ectr );
+
+        if( use_len == 16 )
+        {
+            ((uint64_t *) out_p)[0] = ((uint64_t *) ectr)[0] ^
+                                      ((uint64_t *) p)[0];
+            ((uint64_t *) out_p)[1] = ((uint64_t *) ectr)[1] ^
+                                      ((uint64_t *) p)[1];
+        }
+        else
+            for( i = 0; i < use_len; i++ )
+                out_p[i] = ectr[i] ^ p[i];
+
+        if( use_len == 16 )
+        {
+            ((uint64_t *) buf)[0] ^= ((uint64_t *) (*xor_p))[0];
+            ((uint64_t *) buf)[1] ^= ((uint64_t *) (*xor_p))[1];
+        }
+        else
+            for( i = 0; i < use_len; i++ )
+                buf[i] ^= (*xor_p)[i];
+        
+        gcm_mult( ctx, buf, buf );
+        
+        length -= use_len;
+        p += use_len;
+        out_p += use_len;
+    }
+
+    if( orig_len || orig_add_len )
+    {
+        memset( work_buf, 0x00, 16 );
+
+        PUT_ULONG_BE( orig_add_len , work_buf, 4 );
+        PUT_ULONG_BE( orig_len , work_buf, 12 );
+
+        ((uint64_t *) buf)[0] ^= ((uint64_t *) work_buf)[0];
+        ((uint64_t *) buf)[1] ^= ((uint64_t *) work_buf)[1];
+
+        gcm_mult( ctx, buf, buf );
+
+        if( tag_len == 16 )
+        {
+            ((uint64_t *) tag)[0] ^= ((uint64_t *) buf)[0];
+            ((uint64_t *) tag)[1] ^= ((uint64_t *) buf)[1];
+        }
+        else
+            for( i = 0; i < tag_len; i++ )
+                tag[i] ^= buf[i];
+    }
+
+    return( 0 );
+}
+
+int gcm_auth_decrypt( gcm_context *ctx,
+                      size_t length,
+                      const unsigned char *iv,
+                      size_t iv_len,
+                      const unsigned char *add,
+                      size_t add_len,
+                      const unsigned char *tag, 
+                      size_t tag_len,
+                      const unsigned char *input,
+                      unsigned char *output )
+{
+    unsigned char check_tag[16];
+
+    gcm_crypt_and_tag( ctx, GCM_DECRYPT, length, iv, iv_len, add, add_len, input, output, tag_len, check_tag );
+
+    if( memcmp( check_tag, tag, tag_len ) == 0 )
+        return( 0 );
+
+    memset( output, 0, length );
+
+    return( POLARSSL_ERR_GCM_AUTH_FAILED );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include <stdio.h>
+
+/*
+ * GCM test vectors from:
+ *
+ * http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip
+ */
+#define MAX_TESTS   6
+
+int key_index[MAX_TESTS] =
+    { 0, 0, 1, 1, 1, 1 };
+
+unsigned char key[MAX_TESTS][32] =
+{
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+    { 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
+      0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
+      0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
+      0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08 },  
+};
+
+size_t iv_len[MAX_TESTS] =
+    { 12, 12, 12, 12, 8, 60 };
+
+int iv_index[MAX_TESTS] =
+    { 0, 0, 1, 1, 1, 2 };
+
+unsigned char iv[MAX_TESTS][64] =
+{
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00 },
+    { 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
+      0xde, 0xca, 0xf8, 0x88 },
+    { 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5,
+      0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa, 
+      0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1,
+      0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28, 
+      0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39,
+      0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54, 
+      0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57,
+      0xa6, 0x37, 0xb3, 0x9b }, 
+};
+
+size_t add_len[MAX_TESTS] =
+    { 0, 0, 0, 20, 20, 20 };
+
+int add_index[MAX_TESTS] =
+    { 0, 0, 0, 1, 1, 1 };
+
+unsigned char additional[MAX_TESTS][64] =
+{
+    { 0x00 },
+    { 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
+      0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef, 
+      0xab, 0xad, 0xda, 0xd2 },
+};
+
+size_t pt_len[MAX_TESTS] =
+    { 0, 16, 64, 60, 60, 60 };
+
+int pt_index[MAX_TESTS] =
+    { 0, 0, 1, 1, 1, 1 };
+
+unsigned char pt[MAX_TESTS][64] =
+{
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+    { 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
+      0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
+      0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
+      0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
+      0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
+      0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
+      0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
+      0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55 },
+};
+
+unsigned char ct[MAX_TESTS * 3][64] =
+{
+    { 0x00 },
+    { 0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92,
+      0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78 },
+    { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
+      0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c, 
+      0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
+      0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e, 
+      0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
+      0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05, 
+      0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
+      0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85 },
+    { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
+      0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c, 
+      0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
+      0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e, 
+      0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
+      0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05, 
+      0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
+      0x3d, 0x58, 0xe0, 0x91 },
+    { 0x61, 0x35, 0x3b, 0x4c, 0x28, 0x06, 0x93, 0x4a,
+      0x77, 0x7f, 0xf5, 0x1f, 0xa2, 0x2a, 0x47, 0x55, 
+      0x69, 0x9b, 0x2a, 0x71, 0x4f, 0xcd, 0xc6, 0xf8,
+      0x37, 0x66, 0xe5, 0xf9, 0x7b, 0x6c, 0x74, 0x23, 
+      0x73, 0x80, 0x69, 0x00, 0xe4, 0x9f, 0x24, 0xb2,
+      0x2b, 0x09, 0x75, 0x44, 0xd4, 0x89, 0x6b, 0x42, 
+      0x49, 0x89, 0xb5, 0xe1, 0xeb, 0xac, 0x0f, 0x07,
+      0xc2, 0x3f, 0x45, 0x98 },
+    { 0x8c, 0xe2, 0x49, 0x98, 0x62, 0x56, 0x15, 0xb6,
+      0x03, 0xa0, 0x33, 0xac, 0xa1, 0x3f, 0xb8, 0x94, 
+      0xbe, 0x91, 0x12, 0xa5, 0xc3, 0xa2, 0x11, 0xa8,
+      0xba, 0x26, 0x2a, 0x3c, 0xca, 0x7e, 0x2c, 0xa7, 
+      0x01, 0xe4, 0xa9, 0xa4, 0xfb, 0xa4, 0x3c, 0x90,
+      0xcc, 0xdc, 0xb2, 0x81, 0xd4, 0x8c, 0x7c, 0x6f, 
+      0xd6, 0x28, 0x75, 0xd2, 0xac, 0xa4, 0x17, 0x03,
+      0x4c, 0x34, 0xae, 0xe5 },
+    { 0x00 },
+    { 0x98, 0xe7, 0x24, 0x7c, 0x07, 0xf0, 0xfe, 0x41,
+      0x1c, 0x26, 0x7e, 0x43, 0x84, 0xb0, 0xf6, 0x00 }, 
+    { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
+      0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57, 
+      0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
+      0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c, 
+      0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
+      0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47, 
+      0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
+      0xcc, 0xda, 0x27, 0x10, 0xac, 0xad, 0xe2, 0x56 },
+    { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
+      0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57, 
+      0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
+      0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c, 
+      0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25, 
+      0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47, 
+      0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
+      0xcc, 0xda, 0x27, 0x10 }, 
+    { 0x0f, 0x10, 0xf5, 0x99, 0xae, 0x14, 0xa1, 0x54,
+      0xed, 0x24, 0xb3, 0x6e, 0x25, 0x32, 0x4d, 0xb8, 
+      0xc5, 0x66, 0x63, 0x2e, 0xf2, 0xbb, 0xb3, 0x4f,
+      0x83, 0x47, 0x28, 0x0f, 0xc4, 0x50, 0x70, 0x57, 
+      0xfd, 0xdc, 0x29, 0xdf, 0x9a, 0x47, 0x1f, 0x75,
+      0xc6, 0x65, 0x41, 0xd4, 0xd4, 0xda, 0xd1, 0xc9, 
+      0xe9, 0x3a, 0x19, 0xa5, 0x8e, 0x8b, 0x47, 0x3f,
+      0xa0, 0xf0, 0x62, 0xf7 }, 
+    { 0xd2, 0x7e, 0x88, 0x68, 0x1c, 0xe3, 0x24, 0x3c,
+      0x48, 0x30, 0x16, 0x5a, 0x8f, 0xdc, 0xf9, 0xff, 
+      0x1d, 0xe9, 0xa1, 0xd8, 0xe6, 0xb4, 0x47, 0xef,
+      0x6e, 0xf7, 0xb7, 0x98, 0x28, 0x66, 0x6e, 0x45, 
+      0x81, 0xe7, 0x90, 0x12, 0xaf, 0x34, 0xdd, 0xd9,
+      0xe2, 0xf0, 0x37, 0x58, 0x9b, 0x29, 0x2d, 0xb3, 
+      0xe6, 0x7c, 0x03, 0x67, 0x45, 0xfa, 0x22, 0xe7,
+      0xe9, 0xb7, 0x37, 0x3b }, 
+    { 0x00 },
+    { 0xce, 0xa7, 0x40, 0x3d, 0x4d, 0x60, 0x6b, 0x6e, 
+      0x07, 0x4e, 0xc5, 0xd3, 0xba, 0xf3, 0x9d, 0x18 }, 
+    { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07, 
+      0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d, 
+      0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9, 
+      0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa, 
+      0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d, 
+      0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38, 
+      0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a, 
+      0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad }, 
+    { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07, 
+      0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,  
+      0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9, 
+      0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa, 
+      0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d, 
+      0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38, 
+      0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a, 
+      0xbc, 0xc9, 0xf6, 0x62 }, 
+    { 0xc3, 0x76, 0x2d, 0xf1, 0xca, 0x78, 0x7d, 0x32,
+      0xae, 0x47, 0xc1, 0x3b, 0xf1, 0x98, 0x44, 0xcb, 
+      0xaf, 0x1a, 0xe1, 0x4d, 0x0b, 0x97, 0x6a, 0xfa,
+      0xc5, 0x2f, 0xf7, 0xd7, 0x9b, 0xba, 0x9d, 0xe0, 
+      0xfe, 0xb5, 0x82, 0xd3, 0x39, 0x34, 0xa4, 0xf0,
+      0x95, 0x4c, 0xc2, 0x36, 0x3b, 0xc7, 0x3f, 0x78, 
+      0x62, 0xac, 0x43, 0x0e, 0x64, 0xab, 0xe4, 0x99,
+      0xf4, 0x7c, 0x9b, 0x1f }, 
+    { 0x5a, 0x8d, 0xef, 0x2f, 0x0c, 0x9e, 0x53, 0xf1,
+      0xf7, 0x5d, 0x78, 0x53, 0x65, 0x9e, 0x2a, 0x20, 
+      0xee, 0xb2, 0xb2, 0x2a, 0xaf, 0xde, 0x64, 0x19,
+      0xa0, 0x58, 0xab, 0x4f, 0x6f, 0x74, 0x6b, 0xf4, 
+      0x0f, 0xc0, 0xc3, 0xb7, 0x80, 0xf2, 0x44, 0x45,
+      0x2d, 0xa3, 0xeb, 0xf1, 0xc5, 0xd8, 0x2c, 0xde, 
+      0xa2, 0x41, 0x89, 0x97, 0x20, 0x0e, 0xf8, 0x2e,
+      0x44, 0xae, 0x7e, 0x3f }, 
+};
+
+unsigned char tag[MAX_TESTS * 3][16] =
+{
+    { 0x58, 0xe2, 0xfc, 0xce, 0xfa, 0x7e, 0x30, 0x61,
+      0x36, 0x7f, 0x1d, 0x57, 0xa4, 0xe7, 0x45, 0x5a },
+    { 0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd,
+      0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf },
+    { 0x4d, 0x5c, 0x2a, 0xf3, 0x27, 0xcd, 0x64, 0xa6,
+      0x2c, 0xf3, 0x5a, 0xbd, 0x2b, 0xa6, 0xfa, 0xb4 }, 
+    { 0x5b, 0xc9, 0x4f, 0xbc, 0x32, 0x21, 0xa5, 0xdb,
+      0x94, 0xfa, 0xe9, 0x5a, 0xe7, 0x12, 0x1a, 0x47 },
+    { 0x36, 0x12, 0xd2, 0xe7, 0x9e, 0x3b, 0x07, 0x85,
+      0x56, 0x1b, 0xe1, 0x4a, 0xac, 0xa2, 0xfc, 0xcb },
+    { 0x61, 0x9c, 0xc5, 0xae, 0xff, 0xfe, 0x0b, 0xfa,
+      0x46, 0x2a, 0xf4, 0x3c, 0x16, 0x99, 0xd0, 0x50 },
+    { 0xcd, 0x33, 0xb2, 0x8a, 0xc7, 0x73, 0xf7, 0x4b,
+      0xa0, 0x0e, 0xd1, 0xf3, 0x12, 0x57, 0x24, 0x35 },
+    { 0x2f, 0xf5, 0x8d, 0x80, 0x03, 0x39, 0x27, 0xab,
+      0x8e, 0xf4, 0xd4, 0x58, 0x75, 0x14, 0xf0, 0xfb }, 
+    { 0x99, 0x24, 0xa7, 0xc8, 0x58, 0x73, 0x36, 0xbf,
+      0xb1, 0x18, 0x02, 0x4d, 0xb8, 0x67, 0x4a, 0x14 },
+    { 0x25, 0x19, 0x49, 0x8e, 0x80, 0xf1, 0x47, 0x8f,
+      0x37, 0xba, 0x55, 0xbd, 0x6d, 0x27, 0x61, 0x8c }, 
+    { 0x65, 0xdc, 0xc5, 0x7f, 0xcf, 0x62, 0x3a, 0x24,
+      0x09, 0x4f, 0xcc, 0xa4, 0x0d, 0x35, 0x33, 0xf8 }, 
+    { 0xdc, 0xf5, 0x66, 0xff, 0x29, 0x1c, 0x25, 0xbb,
+      0xb8, 0x56, 0x8f, 0xc3, 0xd3, 0x76, 0xa6, 0xd9 }, 
+    { 0x53, 0x0f, 0x8a, 0xfb, 0xc7, 0x45, 0x36, 0xb9,
+      0xa9, 0x63, 0xb4, 0xf1, 0xc4, 0xcb, 0x73, 0x8b }, 
+    { 0xd0, 0xd1, 0xc8, 0xa7, 0x99, 0x99, 0x6b, 0xf0,
+      0x26, 0x5b, 0x98, 0xb5, 0xd4, 0x8a, 0xb9, 0x19 }, 
+    { 0xb0, 0x94, 0xda, 0xc5, 0xd9, 0x34, 0x71, 0xbd,
+      0xec, 0x1a, 0x50, 0x22, 0x70, 0xe3, 0xcc, 0x6c }, 
+    { 0x76, 0xfc, 0x6e, 0xce, 0x0f, 0x4e, 0x17, 0x68,
+      0xcd, 0xdf, 0x88, 0x53, 0xbb, 0x2d, 0x55, 0x1b }, 
+    { 0x3a, 0x33, 0x7d, 0xbf, 0x46, 0xa7, 0x92, 0xc4,
+      0x5e, 0x45, 0x49, 0x13, 0xfe, 0x2e, 0xa8, 0xf2 }, 
+    { 0xa4, 0x4a, 0x82, 0x66, 0xee, 0x1c, 0x8e, 0xb0,
+      0xc8, 0xb5, 0xd4, 0xcf, 0x5a, 0xe9, 0xf1, 0x9a }, 
+};
+
+int gcm_self_test( int verbose )
+{
+    gcm_context ctx;
+    unsigned char buf[64];
+    unsigned char tag_buf[16];
+    int i, j, ret;
+
+    for( j = 0; j < 3; j++ )
+    {
+        int key_len = 128 + 64 * j;
+
+        for( i = 0; i < MAX_TESTS; i++ )
+        {
+            printf( "  AES-GCM-%3d #%d (%s): ", key_len, i, "enc" );
+            gcm_init( &ctx, key[key_index[i]], key_len );
+
+            ret = gcm_crypt_and_tag( &ctx, GCM_ENCRYPT,
+                                     pt_len[i],
+                                     iv[iv_index[i]], iv_len[i],
+                                     additional[add_index[i]], add_len[i],
+                                     pt[pt_index[i]], buf, 16, tag_buf );
+
+            if( ret != 0 ||
+                memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||
+                memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
+            {
+                if( verbose != 0 )
+                    printf( "failed\n" );
+
+                return( 1 );
+            }
+
+            if( verbose != 0 )
+                printf( "passed\n" );
+
+            printf( "  AES-GCM-%3d #%d (%s): ", key_len, i, "dec" );
+            gcm_init( &ctx, key[key_index[i]], key_len );
+
+            ret = gcm_crypt_and_tag( &ctx, GCM_DECRYPT,
+                                     pt_len[i],
+                                     iv[iv_index[i]], iv_len[i],
+                                     additional[add_index[i]], add_len[i],
+                                     ct[j * 6 + i], buf, 16, tag_buf );
+
+            if( ret != 0 ||
+                memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||
+                memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
+            {
+                if( verbose != 0 )
+                    printf( "failed\n" );
+
+                return( 1 );
+            }
+
+            if( verbose != 0 )
+                printf( "passed\n" );
+        }
+    }
+    
+    printf( "\n" );
+
+    return( 0 );
+}
+
+#endif
+
+#endif