[GNUnet-SVN] r35365 - in gnunet/src: include util

[gnunet]

Author: grothoff
Date: 2015-03-09 12:59:33 +0100 (Mon, 09 Mar 2015)
New Revision: 35365

Modified:
   gnunet/src/include/gnunet_crypto_lib.h
   gnunet/src/util/crypto_rsa.c
Log:
add GNUNET_CRYPTO_rsa_public_key_hash

Modified: gnunet/src/include/gnunet_crypto_lib.h
===================================================================
--- gnunet/src/include/gnunet_crypto_lib.h      2015-03-09 08:24:58 UTC (rev 
35364)
+++ gnunet/src/include/gnunet_crypto_lib.h      2015-03-09 11:59:33 UTC (rev 
35365)
@@ -1539,6 +1539,17 @@
 
 
 /**
+ * Compute hash over the public key.
+ *
+ * @param key public key to hash
+ * @param hc where to store the hash code
+ */
+void
+GNUNET_CRYPTO_rsa_public_key_hash (const struct GNUNET_CRYPTO_rsa_PublicKey 
*key,
+                                   struct GNUNET_HashCode *hc);
+
+
+/**
  * Free memory occupied by the public key.
  *
  * @param key pointer to the memory to free

Modified: gnunet/src/util/crypto_rsa.c
===================================================================
--- gnunet/src/util/crypto_rsa.c        2015-03-09 08:24:58 UTC (rev 35364)
+++ gnunet/src/util/crypto_rsa.c        2015-03-09 11:59:33 UTC (rev 35365)
@@ -299,7 +299,7 @@
  */
 size_t
 GNUNET_CRYPTO_rsa_public_key_encode (const struct GNUNET_CRYPTO_rsa_PublicKey 
*key,
-                             char **buffer)
+                                     char **buffer)
 {
   size_t n;
   char *b;
@@ -320,6 +320,28 @@
 
 
 /**
+ * Compute hash over the public key.
+ *
+ * @param key public key to hash
+ * @param hc where to store the hash code
+ */
+void
+GNUNET_CRYPTO_rsa_public_key_hash (const struct GNUNET_CRYPTO_rsa_PublicKey 
*key,
+                                   struct GNUNET_HashCode *hc)
+{
+  char *buf;
+  size_t buf_size;
+
+  buf_size = GNUNET_CRYPTO_rsa_public_key_encode (key,
+                                                  &buf);
+  GNUNET_CRYPTO_hash (buf,
+                      buf_size,
+                      hc);
+  GNUNET_free (buf);
+}
+
+
+/**
  * Decode the public key from the data-format back
  * to the "normal", internal format.
  *
@@ -329,7 +351,7 @@
  */
 struct GNUNET_CRYPTO_rsa_PublicKey *
 GNUNET_CRYPTO_rsa_public_key_decode (const char *buf,
-                             size_t len)
+                                     size_t len)
 {
   struct GNUNET_CRYPTO_rsa_PublicKey *key;
   gcry_mpi_t n;