Implement new APIs to allow improved crypto performance

Merge branches/enc-perf to trunk.  Adds the krb5_key opaque type, the
krb5_k_* APIs to use them, and caching of derived keys when krb5_k_*
functions are used.  Updates the krb5 auth context and GSS id-rec to
use krb5_keys.

ticket: 6576

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@22944 dc483132-0cff-0310-8789-dd5450dbe970

1 files changed, 22 insertions, 2 deletions

diff --git a/src/lib/crypto/krb/make_checksum_iov.c b/src/lib/crypto/krb/make_checksum_iov.c
index a16b849..32c9a4c 100644
--- a/src/lib/crypto/krb/make_checksum_iov.c
+++ b/src/lib/crypto/krb/make_checksum_iov.c
@@ -29,9 +29,9 @@
 #include "aead.h"
 
 krb5_error_code KRB5_CALLCONV
-krb5_c_make_checksum_iov(krb5_context context,
+krb5_k_make_checksum_iov(krb5_context context,
 			 krb5_cksumtype cksumtype,
-			 const krb5_keyblock *key,
+			 krb5_key key,
 			 krb5_keyusage usage,
 			 krb5_crypto_iov *data,
 			 size_t num_data)
@@ -81,3 +81,23 @@ krb5_c_make_checksum_iov(krb5_context context,
 
     return(ret);
 }
+
+krb5_error_code KRB5_CALLCONV
+krb5_c_make_checksum_iov(krb5_context context,
+			 krb5_cksumtype cksumtype,
+			 const krb5_keyblock *keyblock,
+			 krb5_keyusage usage,
+			 krb5_crypto_iov *data,
+			 size_t num_data)
+{
+    krb5_key key;
+    krb5_error_code ret;
+
+    ret = krb5_k_create_key(context, keyblock, &key);
+    if (ret != 0)
+	return ret;
+    ret = krb5_k_make_checksum_iov(context, cksumtype, key, usage,
+				   data, num_data);
+    krb5_k_free_key(context, key);
+    return ret;
+}