propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)

            to branch 'au.asn.ucc.matt.dropbear' (head 02c413252c90e9de8e03d91e9939dde3029f5c0a)

--HG--
extra : convert_revision : 52ccb0ad0587a62bc64aecb939adbb76546aac16

3 files changed, 54 insertions, 41 deletions

diff --git a/libtomcrypt/src/pk/asn1/der/object_identifier/der_decode_object_identifier.c b/libtomcrypt/src/pk/asn1/der/object_identifier/der_decode_object_identifier.c
index c69c9a3..1fa87d8 100644
--- a/libtomcrypt/src/pk/asn1/der/object_identifier/der_decode_object_identifier.c
+++ b/libtomcrypt/src/pk/asn1/der/object_identifier/der_decode_object_identifier.c
@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org
+ * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
  */
 #include "tomcrypt.h"
 
@@ -67,14 +67,8 @@ int der_decode_object_identifier(const unsigned char *in,    unsigned long  inle
       return CRYPT_INVALID_PACKET;
    }
 
-   /* decode word1 and word2 */
-   --len;
-   t = in[x++];
-   words[0] = t/40;
-   words[1] = t%40;
-
-   /* decode rest */
-   y = 2;
+   /* decode words */
+   y = 0;
    t = 0;
    while (len--) {
        t = (t << 7) | (in[x] & 0x7F);
@@ -83,7 +77,13 @@ int der_decode_object_identifier(const unsigned char *in,    unsigned long  inle
            if (y >= *outlen) {
               return CRYPT_BUFFER_OVERFLOW;
            }
-           words[y++] = t;
+      if (y == 0) {
+         words[0] = t / 40;
+         words[1] = t % 40;
+         y = 2;
+      } else {
+              words[y++] = t;
+      }
            t          = 0;
        }
    }
@@ -95,5 +95,5 @@ int der_decode_object_identifier(const unsigned char *in,    unsigned long  inle
 #endif
 
 /* $Source: /cvs/libtom/libtomcrypt/src/pk/asn1/der/object_identifier/der_decode_object_identifier.c,v $ */
-/* $Revision: 1.1 $ */
-/* $Date: 2005/05/16 15:08:11 $ */
+/* $Revision: 1.5 $ */
+/* $Date: 2006/11/21 00:18:23 $ */
diff --git a/libtomcrypt/src/pk/asn1/der/object_identifier/der_encode_object_identifier.c b/libtomcrypt/src/pk/asn1/der/object_identifier/der_encode_object_identifier.c
index 16eb112..b343aaa 100644
--- a/libtomcrypt/src/pk/asn1/der/object_identifier/der_encode_object_identifier.c
+++ b/libtomcrypt/src/pk/asn1/der/object_identifier/der_encode_object_identifier.c
@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org
+ * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
  */
 #include "tomcrypt.h"
 
@@ -27,7 +27,7 @@
 int der_encode_object_identifier(unsigned long *words, unsigned long  nwords,
                                  unsigned char *out,   unsigned long *outlen)
 {
-   unsigned long i, x, y, z, t, mask;
+   unsigned long i, x, y, z, t, mask, wordbuf;
    int           err;
 
    LTC_ARGCHK(words  != NULL);
@@ -39,50 +39,54 @@ int der_encode_object_identifier(unsigned long *words, unsigned long  nwords,
       return err;
    }
    if (x > *outlen) {
+      *outlen = x;
       return CRYPT_BUFFER_OVERFLOW;
    }
 
    /* compute length to store OID data */
-   z = 1;
-   for (y = 2; y < nwords; y++) {
-       t = der_object_identifier_bits(words[y]);
-       z += t/7 + ((t%7) ? 1 : 0);
+   z = 0;
+   wordbuf = words[0] * 40 + words[1];
+   for (y = 1; y < nwords; y++) {
+       t = der_object_identifier_bits(wordbuf);
+       z += t/7 + ((t%7) ? 1 : 0) + (wordbuf == 0 ? 1 : 0);
+       if (y < nwords - 1) {
+          wordbuf = words[y + 1];
+       }
    }
 
    /* store header + length */
    x = 0; 
    out[x++] = 0x06;
    if (z < 128) {
-      out[x++] = z;
+      out[x++] = (unsigned char)z;
    } else if (z < 256) {
       out[x++] = 0x81;
-      out[x++] = z;
+      out[x++] = (unsigned char)z;
    } else if (z < 65536UL) {
       out[x++] = 0x82;
-      out[x++] = (z>>8)&255;
-      out[x++] = z&255;
+      out[x++] = (unsigned char)((z>>8)&255);
+      out[x++] = (unsigned char)(z&255);
    } else {
       return CRYPT_INVALID_ARG;
    }
 
    /* store first byte */
-   out[x++] = words[0] * 40 + words[1];   
-   
-    for (i = 2; i < nwords; i++) {
+    wordbuf = words[0] * 40 + words[1];   
+    for (i = 1; i < nwords; i++) {
         /* store 7 bit words in little endian */
-        t    = words[i] & 0xFFFFFFFF;
+        t    = wordbuf & 0xFFFFFFFF;
         if (t) {
            y    = x;
            mask = 0;
            while (t) {
-               out[x++] = (t & 0x7F) | mask;
+               out[x++] = (unsigned char)((t & 0x7F) | mask);
                t    >>= 7;
                mask  |= 0x80;  /* upper bit is set on all but the last byte */
            }
            /* now swap bytes y...x-1 */
            z = x - 1;
            while (y < z) {
-               t = out[y]; out[y] = out[z]; out[z] = t;
+               t = out[y]; out[y] = out[z]; out[z] = (unsigned char)t;
                ++y; 
                --z;
            }
@@ -90,6 +94,10 @@ int der_encode_object_identifier(unsigned long *words, unsigned long  nwords,
           /* zero word */
           out[x++] = 0x00;
        }
+       
+       if (i < nwords - 1) {
+          wordbuf = words[i + 1];
+       }
    }
 
    *outlen = x;
@@ -99,5 +107,5 @@ int der_encode_object_identifier(unsigned long *words, unsigned long  nwords,
 #endif
 
 /* $Source: /cvs/libtom/libtomcrypt/src/pk/asn1/der/object_identifier/der_encode_object_identifier.c,v $ */
-/* $Revision: 1.1 $ */
-/* $Date: 2005/05/16 15:08:11 $ */
+/* $Revision: 1.6 $ */
+/* $Date: 2006/12/04 21:34:03 $ */
diff --git a/libtomcrypt/src/pk/asn1/der/object_identifier/der_length_object_identifier.c b/libtomcrypt/src/pk/asn1/der/object_identifier/der_length_object_identifier.c
index d03d1a7..a4cf53f 100644
--- a/libtomcrypt/src/pk/asn1/der/object_identifier/der_length_object_identifier.c
+++ b/libtomcrypt/src/pk/asn1/der/object_identifier/der_length_object_identifier.c
@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org
+ * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
  */
 #include "tomcrypt.h"
 
@@ -39,7 +39,7 @@ unsigned long der_object_identifier_bits(unsigned long x)
 */
 int der_length_object_identifier(unsigned long *words, unsigned long nwords, unsigned long *outlen)
 {
-   unsigned long y, z, t;   
+   unsigned long y, z, t, wordbuf;   
 
    LTC_ARGCHK(words  != NULL);
    LTC_ARGCHK(outlen != NULL);
@@ -50,16 +50,21 @@ int der_length_object_identifier(unsigned long *words, unsigned long nwords, uns
       return CRYPT_INVALID_ARG;
    }
 
-   /* word1 = 0,1,2 and word2 0..39 */
-   if (words[0] > 2 || words[1] > 39) {
+   /* word1 = 0,1,2,3 and word2 0..39 */
+   if (words[0] > 3 || (words[0] < 2 && words[1] > 39)) {
       return CRYPT_INVALID_ARG;
    }
 
-   /* leading byte of first two words */
-   z = 1;
-   for (y = 2; y < nwords; y++) {
-       t = der_object_identifier_bits(words[y]);
-       z += t/7 + ((t%7) ? 1 : 0);
+   /* leading word is the first two */
+   z = 0;
+   wordbuf = words[0] * 40 + words[1];
+   for (y = 1; y < nwords; y++) {
+       t = der_object_identifier_bits(wordbuf);
+       z += t/7 + ((t%7) ? 1 : 0) + (wordbuf == 0 ? 1 : 0);
+       if (y < nwords - 1) {
+          /* grab next word */
+          wordbuf = words[y+1];
+       }
    }
 
    /* now depending on the length our length encoding changes */
@@ -80,5 +85,5 @@ int der_length_object_identifier(unsigned long *words, unsigned long nwords, uns
 #endif
 
 /* $Source: /cvs/libtom/libtomcrypt/src/pk/asn1/der/object_identifier/der_length_object_identifier.c,v $ */
-/* $Revision: 1.1 $ */
-/* $Date: 2005/05/16 15:08:11 $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2006/04/16 20:17:42 $ */