1 files changed, 27 insertions, 0 deletions
diff --git a/lib/crypto-api.c b/lib/crypto-api.c
index ed1499315f..a275a7611f 100644
--- a/lib/crypto-api.c
+++ b/lib/crypto-api.c
@@ -168,6 +168,33 @@ gnutls_cipher_set_iv(gnutls_cipher_hd_t handle, void *iv, size_t ivlen)
 }
 
 /**
+ * _gnutls_cipher_get_iv:
+ * @handle: is a #gnutls_cipher_hd_t type
+ * @iv: the IV to set
+ * @ivlen: the length of the IV
+ *
+ * This function will retrieve the internal IV value.  @iv must have @ivlen
+ * length at least.
+ *
+ * This is sorely for validation purposes of our crypto
+ * implementation.  For other purposes, the IV can be typically
+ * calculated from the initial IV value and the subsequent ciphertext
+ * values.  As such, this function only works with the internally
+ * registered ciphers.
+ *
+ * Returns: The length of IV or a negative error code on error.
+ *
+ * Since: 3.6.8
+ **/
+int
+_gnutls_cipher_get_iv(gnutls_cipher_hd_t handle, void *iv, size_t ivlen)
+{
+	api_cipher_hd_st *h = handle;
+
+	return _gnutls_cipher_getiv(&h->ctx_enc, iv, ivlen);
+}
+
+/**
  * gnutls_cipher_encrypt:
  * @handle: is a #gnutls_cipher_hd_t type
  * @ptext: the data to encrypt