diff --git a/configure.ac b/configure.ac
index b02e55fc6..6f7782b1c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,7 @@ AC_INIT(gnupg, 1.9.0-cvs, gnupg-devel@gnupg.org)
 # feel that the default check for a development version is not
 # sufficient.
 development_version=yes
-NEED_LIBGCRYPT_VERSION=1.1.8
+NEED_LIBGCRYPT_VERSION=1.1.42
 NEED_LIBASSUAN_VERSION=0.0.1
 NEED_KSBA_VERSION=0.4.6
 NEED_OPENSC_VERSION=0.7.0
diff --git a/g10/ChangeLog b/g10/ChangeLog
index a7f8d4eb7..23a79cf72 100644
--- a/g10/ChangeLog
+++ b/g10/ChangeLog
@@ -1,3 +1,7 @@
+2003-07-27  Werner Koch  <wk@gnupg.org>
+
+	Adjusted for gcry_mpi_print and gcry_mpi_scan API change.
+
 2003-07-24  Werner Koch  <wk@gnupg.org>
 
 	* g10.c: New command --card-status.
diff --git a/g10/call-agent.c b/g10/call-agent.c
index ed4fa9054..00d124f0b 100644
--- a/g10/call-agent.c
+++ b/g10/call-agent.c
@@ -647,7 +647,7 @@ scd_genkey_cb (void *opaque, const char *line)
       while (spacep (line))
         line++;
 
-      rc = gcry_mpi_scan (&a, GCRYMPI_FMT_HEX, line, 0);
+      rc = gcry_mpi_scan (&a, GCRYMPI_FMT_HEX, line, 0, NULL);
       if (rc)
         log_error ("error parsing received key data: %s\n", gpg_strerror (rc));
       else if (*name == 'n' && spacep (name+1))
diff --git a/g10/comment.c b/g10/comment.c
index 3108351e4..ab5d2941e 100644
--- a/g10/comment.c
+++ b/g10/comment.c
@@ -86,11 +86,11 @@ make_mpi_comment_node( const char *s, gcry_mpi_t a )
     size_t n = strlen(s);
 
     nb1 = mpi_get_nbits( a );
-    if (gcry_mpi_print (GCRYMPI_FMT_PGP, NULL, &n1, a))
+    if (gcry_mpi_print (GCRYMPI_FMT_PGP, NULL, 0, &n1, a))
       BUG ();
     /* fixme: allocate it on the stack */
     buf = xmalloc (n1);
-    if (gcry_mpi_print (GCRYMPI_FMT_PGP, buf, &n1, a))
+    if (gcry_mpi_print (GCRYMPI_FMT_PGP, buf, n1, &n1, a))
       BUG ();
 
     pkt = xcalloc (1, sizeof *pkt );
diff --git a/g10/export.c b/g10/export.c
index 32addfa4a..43d1b21ed 100644
--- a/g10/export.c
+++ b/g10/export.c
@@ -441,13 +441,13 @@ static int
 write_sexp_keyparm (iobuf_t out, int *indent, const char *name, gcry_mpi_t a)
 {
   int rc;
-  char *buffer;
+  unsigned char *buffer;
 
   write_sexp_line (out, indent, "(");
   iobuf_writestr (out, name);
   iobuf_writestr (out, " #");
 
-  rc = gcry_mpi_aprint (GCRYMPI_FMT_HEX, (void **)&buffer, NULL, a);
+  rc = gcry_mpi_aprint (GCRYMPI_FMT_HEX, &buffer, NULL, a);
   assert (!rc);
   iobuf_writestr (out, buffer);
   iobuf_writestr (out, "#)");
diff --git a/g10/keyid.c b/g10/keyid.c
index ea0632dcc..aaa70cccb 100644
--- a/g10/keyid.c
+++ b/g10/keyid.c
@@ -67,11 +67,12 @@ do_fingerprint_md( PKT_public_key *pk )
     for(i=0; i < npkey; i++ ) {
 	size_t nbytes;
 
-	if (gcry_mpi_print( GCRYMPI_FMT_PGP, NULL, &nbytes, pk->pkey[i] ))
+	if (gcry_mpi_print( GCRYMPI_FMT_PGP, NULL, 0, &nbytes, pk->pkey[i] ))
           BUG ();
 	/* fixme: we should try to allocate a buffer on the stack */
 	pp[i] = xmalloc(nbytes);
-	if (gcry_mpi_print ( GCRYMPI_FMT_PGP, pp[i], &nbytes, pk->pkey[i] ))
+	if (gcry_mpi_print ( GCRYMPI_FMT_PGP, pp[i], nbytes, &nbytes,
+                             pk->pkey[i] ))
           BUG ();
 	nn[i] = nbytes;
 	n += nn[i];
@@ -135,11 +136,11 @@ v3_keyid (gcry_mpi_t a, u32 *ki)
   byte *buffer;
   size_t nbytes;
 
-  if (gcry_mpi_print (GCRYMPI_FMT_USG, NULL, &nbytes, a ))
+  if (gcry_mpi_print (GCRYMPI_FMT_USG, NULL, 0, &nbytes, a ))
     BUG ();
   /* fixme: allocate it on the stack */
   buffer = xmalloc (nbytes);
-  if (gcry_mpi_print( GCRYMPI_FMT_USG, buffer, &nbytes, a ))
+  if (gcry_mpi_print( GCRYMPI_FMT_USG, buffer, nbytes, NULL, a ))
     BUG ();
   if (nbytes < 8) /* oops */
     ki[0] = ki[1] = 0;
@@ -476,19 +477,20 @@ fingerprint_from_pk( PKT_public_key *pk, byte *array, size_t *ret_len )
 	if( pubkey_get_npkey( pk->pubkey_algo ) > 1 ) {
 	    size_t nbytes;
 
-	    if (gcry_mpi_print( GCRYMPI_FMT_USG, NULL, &nbytes, pk->pkey[0]))
+	    if (gcry_mpi_print( GCRYMPI_FMT_USG, NULL, 0, &nbytes,
+                                pk->pkey[0]))
               BUG ();
 	    /* fixme: allocate it on the stack */
 	    buf = xmalloc(nbytes);
-	    if (gcry_mpi_print (GCRYMPI_FMT_USG, buf, &nbytes, pk->pkey[0]))
+	    if (gcry_mpi_print (GCRYMPI_FMT_USG, buf, nbytes, NULL,pk->pkey[0]))
               BUG ();
 	    gcry_md_write (md, buf, nbytes);
 	    xfree (buf);
-	    if (gcry_mpi_print( GCRYMPI_FMT_USG, NULL, &nbytes, pk->pkey[1]))
+	    if (gcry_mpi_print( GCRYMPI_FMT_USG, NULL, 0, &nbytes, pk->pkey[1]))
               BUG ();
 	    /* fixme: allocate it on the stack */
 	    buf = xmalloc(nbytes);
-	    if (gcry_mpi_print( GCRYMPI_FMT_USG, buf, &nbytes, pk->pkey[1]))
+	    if (gcry_mpi_print( GCRYMPI_FMT_USG, buf, nbytes, NULL,pk->pkey[1]))
               BUG ();
 	    gcry_md_write( md, buf, nbytes );
 	    xfree(buf);
@@ -533,19 +535,19 @@ fingerprint_from_sk( PKT_secret_key *sk, byte *array, size_t *ret_len )
 	if( pubkey_get_npkey( sk->pubkey_algo ) > 1 ) {
 	    size_t nbytes;
 
-	    if (gcry_mpi_print( GCRYMPI_FMT_USG, NULL, &nbytes, sk->skey[0]))
+	    if (gcry_mpi_print( GCRYMPI_FMT_USG, NULL, 0, &nbytes, sk->skey[0]))
               BUG ();
 	    /* fixme: allocate it on the stack */
 	    buf = xmalloc(nbytes);
-	    if (gcry_mpi_print (GCRYMPI_FMT_USG, buf, &nbytes, sk->skey[0]))
+	    if (gcry_mpi_print (GCRYMPI_FMT_USG, buf, nbytes, NULL,sk->skey[0]))
               BUG ();
 	    gcry_md_write (md, buf, nbytes);
 	    xfree (buf);
-	    if (gcry_mpi_print( GCRYMPI_FMT_USG, NULL, &nbytes, sk->skey[1]))
+	    if (gcry_mpi_print( GCRYMPI_FMT_USG, NULL, 0, &nbytes, sk->skey[1]))
               BUG ();
 	    /* fixme: allocate it on the stack */
 	    buf = xmalloc(nbytes);
-	    if (gcry_mpi_print( GCRYMPI_FMT_USG, buf, &nbytes, sk->skey[1]))
+	    if (gcry_mpi_print( GCRYMPI_FMT_USG, buf,nbytes, NULL, sk->skey[1]))
               BUG ();
 	    gcry_md_write( md, buf, nbytes );
 	    xfree(buf);
diff --git a/g10/misc.c b/g10/misc.c
index 5cdad1598..ad04ce76f 100644
--- a/g10/misc.c
+++ b/g10/misc.c
@@ -122,14 +122,14 @@ checksum_mpi( gcry_mpi_t a )
   byte *buffer;
   size_t nbytes;
 
-  rc = gcry_mpi_print( GCRYMPI_FMT_PGP, NULL, &nbytes, a );
+  rc = gcry_mpi_print( GCRYMPI_FMT_PGP, NULL, 0, &nbytes, a );
   if (rc)
     BUG ();
   /* fixme: for numbers not in secure memory we should use a stack
    * based buffer and only allocate a larger one if mpi_print return
    * an error */
-  buffer = gcry_is_secure(a)? gcry_xmalloc_secure(nbytes) : gcry_xmalloc(nbytes);
-  rc = gcry_mpi_print( GCRYMPI_FMT_PGP, buffer, &nbytes, a );
+  buffer = gcry_is_secure(a)? gcry_xmalloc_secure(nbytes):gcry_xmalloc(nbytes);
+  rc = gcry_mpi_print (GCRYMPI_FMT_PGP, buffer, nbytes, NULL, a );
   if (rc)
     BUG ();
   csum = checksum (buffer, nbytes );
@@ -827,7 +827,7 @@ mpi_write( iobuf_t out, gcry_mpi_t a )
     int rc;
 
     nbytes = (MAX_EXTERN_MPI_BITS+7)/8;
-    rc = gcry_mpi_print( GCRYMPI_FMT_PGP, buffer, &nbytes, a );
+    rc = gcry_mpi_print (GCRYMPI_FMT_PGP, buffer, nbytes, &nbytes, a );
     if( !rc )
 	rc = iobuf_write( out, buffer, nbytes );
 
@@ -891,7 +891,7 @@ mpi_read(iobuf_t inp, unsigned int *ret_nread, int secure)
 	nread++;
     }
     nread += nbytes;
-    if( gcry_mpi_scan( &a, GCRYMPI_FMT_PGP, buf, &nread ) )
+    if( gcry_mpi_scan( &a, GCRYMPI_FMT_PGP, buf, nread, &nread ) )
 	a = NULL;
 
   leave:
@@ -961,9 +961,9 @@ mpi_print( FILE *fp, gcry_mpi_t a, int mode )
     }
     else {
 	int rc;
-	char *buffer;
+	unsigned char *buffer;
 
-	rc = gcry_mpi_aprint( GCRYMPI_FMT_HEX, (void **)&buffer, NULL, a );
+	rc = gcry_mpi_aprint( GCRYMPI_FMT_HEX, &buffer, NULL, a );
 	assert( !rc );
 	fputs( buffer, fp );
 	n += strlen(buffer);
diff --git a/g10/pubkey-enc.c b/g10/pubkey-enc.c
index d052546e3..4b45b9f5c 100644
--- a/g10/pubkey-enc.c
+++ b/g10/pubkey-enc.c
@@ -149,7 +149,7 @@ get_it( PKT_pubkey_enc *enc, DEK *dek, PKT_secret_key *sk, u32 *keyid )
       char *rbuf;
       size_t rbuflen;
       char *snbuf;
-      void *indata = NULL;
+      unsigned char *indata = NULL;
       unsigned int indatalen;
 
       snbuf = serialno_and_fpr_from_sk (sk->protect.iv, sk->protect.ivlen, sk);
@@ -170,14 +170,11 @@ get_it( PKT_pubkey_enc *enc, DEK *dek, PKT_secret_key *sk, u32 *keyid )
     }
   else
     {
-      void *indata;
-
       rc = pk_decrypt (sk->pubkey_algo, &plain_dek, enc->data, sk->skey);
       if( rc )
         goto leave;
-      if (gcry_mpi_aprint (GCRYMPI_FMT_USG, &indata, &nframe, plain_dek))
+      if (gcry_mpi_aprint (GCRYMPI_FMT_USG, &frame, &nframe, plain_dek))
         BUG();
-      frame = indata;
       gcry_mpi_release (plain_dek); plain_dek = NULL;
     }
 
diff --git a/g10/seckey-cert.c b/g10/seckey-cert.c
index 65be7a468..c9bddd2ff 100644
--- a/g10/seckey-cert.c
+++ b/g10/seckey-cert.c
@@ -161,10 +161,9 @@ do_check( PKT_secret_key *sk, const char *tryagain_text, int mode,
                because the length may have an arbitrary value */
             if( sk->csum == csum ) {
                 for( ; i < pubkey_get_nskey(sk->pubkey_algo); i++ ) {
-                    nbytes = ndata;
 		    assert( gcry_is_secure( p ) );
 		    res = gcry_mpi_scan( &sk->skey[i], GCRYMPI_FMT_PGP,
-							     p, &nbytes);
+                                         p, ndata, &nbytes);
 		    if( res )
 			log_bug ("gcry_mpi_scan failed in do_check: %s\n",
                                  gpg_strerror (res));
@@ -197,7 +196,7 @@ do_check( PKT_secret_key *sk, const char *tryagain_text, int mode,
                 csum += checksum (buffer, ndata);
                 gcry_mpi_release (sk->skey[i]);
 		res = gcry_mpi_scan( &sk->skey[i], GCRYMPI_FMT_USG,
-				     buffer, &ndata );
+				     buffer, ndata, &ndata );
 		if( res )
 		    log_bug ("gcry_mpi_scan failed in do_check: %s\n", 
                              gpg_strerror (res));
@@ -352,7 +351,7 @@ protect_secret_key( PKT_secret_key *sk, DEK *dek )
                             GCRY_STRONG_RANDOM);
 	    gcry_cipher_setiv( cipher_hd, sk->protect.iv, sk->protect.ivlen );
 	    if( sk->version >= 4 ) {
-                byte *bufarr[PUBKEY_MAX_NSKEY];
+                unsigned char *bufarr[PUBKEY_MAX_NSKEY];
 		unsigned narr[PUBKEY_MAX_NSKEY];
 		unsigned nbits[PUBKEY_MAX_NSKEY];
 		int ndata=0;
@@ -363,7 +362,7 @@ protect_secret_key( PKT_secret_key *sk, DEK *dek )
 		    assert( !gcry_mpi_get_flag( sk->skey[i],
                                                 GCRYMPI_FLAG_OPAQUE ));
 
-		    if( gcry_mpi_aprint( GCRYMPI_FMT_USG, (void**)bufarr+j,
+		    if( gcry_mpi_aprint( GCRYMPI_FMT_USG, bufarr+j,
                                          narr+j, sk->skey[i]))
 			BUG();
 
diff --git a/g10/seskey.c b/g10/seskey.c
index 11ebe17aa..be2535ace 100644
--- a/g10/seskey.c
+++ b/g10/seskey.c
@@ -148,7 +148,7 @@ encode_session_key (DEK *dek, unsigned int nbits)
     if (DBG_CIPHER)
       log_printhex ("encoded session key:", frame, nframe );
 
-    if (gcry_mpi_scan( &a, GCRYMPI_FMT_USG, frame, &nframe))
+    if (gcry_mpi_scan( &a, GCRYMPI_FMT_USG, frame, n, &nframe))
       BUG();
     xfree (frame);
     return a;
@@ -185,7 +185,7 @@ do_encode_md( gcry_md_hd_t md, int algo, size_t len, unsigned nbits,
     memcpy( frame+n, asn, asnlen ); n += asnlen;
     memcpy( frame+n, gcry_md_read (md, algo), len ); n += len;
     assert( n == nframe );
-    if (gcry_mpi_scan( &a, GCRYMPI_FMT_USG, frame, &nframe ))
+    if (gcry_mpi_scan( &a, GCRYMPI_FMT_USG, frame, n, &nframe ))
 	BUG();
     xfree (frame);
     return a;
@@ -214,7 +214,7 @@ encode_md_value (int pubkey_algo, gcry_md_hd_t md, int hash_algo,
           return NULL;
         }
       if (gcry_mpi_scan( &frame, GCRYMPI_FMT_USG,
-                         gcry_md_read (md, hash_algo), &n ) )
+                         gcry_md_read (md, hash_algo), n, &n ) )
         BUG();
     }
   else
diff --git a/g10/sig-check.c b/g10/sig-check.c
index ae5c32eaf..4547c6e12 100644
--- a/g10/sig-check.c
+++ b/g10/sig-check.c
@@ -111,7 +111,7 @@ signature_check2( PKT_signature *sig, MD_HANDLE digest,
 	gcry_md_putc( digest,  a        & 0xff );
 	for(i=0; i < nsig; i++ ) {
 	    size_t n;
-            void *tmp;
+            unsigned char *tmp;
 
 	    if (gcry_mpi_aprint (GCRYMPI_FMT_USG, &tmp, &n, sig->data[i]))
 		BUG();
diff --git a/g10/sign.c b/g10/sign.c
index bdeb37d07..493bfb4d9 100644
--- a/g10/sign.c
+++ b/g10/sign.c
@@ -304,8 +304,8 @@ do_sign( PKT_secret_key *sk, PKT_signature *sig,
       xfree (snbuf);
       if (!rc)
         {
-          unsigned int nbytes = rbuflen;
-          if (gcry_mpi_scan (&sig->data[0], GCRYMPI_FMT_USG, rbuf, &nbytes ))
+          if (gcry_mpi_scan (&sig->data[0], GCRYMPI_FMT_USG,
+                             rbuf, rbuflen, NULL ))
             BUG ();
         }
     }
@@ -325,8 +325,8 @@ do_sign( PKT_secret_key *sk, PKT_signature *sig,
       xfree (snbuf);
       if (!rc)
         {
-          unsigned int nbytes = rbuflen;
-          if (gcry_mpi_scan (&sig->data[0], GCRYMPI_FMT_USG, rbuf, &nbytes ))
+          if (gcry_mpi_scan (&sig->data[0], GCRYMPI_FMT_USG,
+                             rbuf, rbuflen, NULL))
             BUG ();
         }
     }