From 9d339f288eda10e5334bbf4ccdfd068eaee95c0e Mon Sep 17 00:00:00 2001
From: Miloslav Trmač <mitr@redhat.com>
Date: Mon, 15 Nov 2010 21:19:21 +0100
Subject: Add ncr_symm_cipher_change_iv

---
 lib/ncrypto_local.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'lib')

diff --git a/lib/ncrypto_local.c b/lib/ncrypto_local.c
index da1ccab..537aaac 100644
--- a/lib/ncrypto_local.c
+++ b/lib/ncrypto_local.c
@@ -501,6 +501,25 @@ ncr_symm_cipher_free (struct ncr_symm_cipher_session *sess)
   return CKR_OK;
 }
 
+CK_RV
+ncr_symm_cipher_change_iv (struct ncr_symm_cipher_session *sess, const void *iv,
+			   size_t iv_size)
+{
+  g_return_val_if_fail (sess != NULL, CKR_SESSION_HANDLE_INVALID);
+  g_return_val_if_fail (sess->state == NSCS_INITIALIZED
+			|| sess->state == NSCS_UPDATED,
+			CKR_OPERATION_NOT_INITIALIZED);
+  g_return_val_if_fail (iv != NULL || iv_size == 0, CKR_ARGUMENTS_BAD);
+
+  g_return_val_if_fail (iv_size
+			== (unsigned)EVP_CIPHER_CTX_iv_length (&sess->ctx),
+			CKR_MECHANISM_PARAM_INVALID);
+  g_assert (iv_size <= sizeof (sess->ctx.iv));
+
+  memcpy (sess->ctx.iv, iv, iv_size);
+  return CKR_OK;
+}
+
 static CK_RV
 symm_cipher_init (struct ncr_symm_cipher_session *sess, bool encrypt,
 		  struct ncr_symm_key *key, const void *param,
-- 
cgit