Add constructor to StreamCipher_Filter taking StreamCipher*

2 files changed, 15 insertions, 0 deletions

diff --git a/src/filters/algo_filt.cpp b/src/filters/algo_filt.cpp
index 33a22b703..3a1f1d5da 100644
--- a/src/filters/algo_filt.cpp
+++ b/src/filters/algo_filt.cpp
@@ -22,6 +22,15 @@ StreamCipher_Filter::StreamCipher_Filter(const std::string& sc_name) :
 /*************************************************
 * StreamCipher_Filter Constructor                *
 *************************************************/
+StreamCipher_Filter::StreamCipher_Filter(StreamCipher* stream_cipher) :
+   buffer(DEFAULT_BUFFERSIZE)
+   {
+   base_ptr = cipher = stream_cipher;
+   }
+
+/*************************************************
+* StreamCipher_Filter Constructor                *
+*************************************************/
 StreamCipher_Filter::StreamCipher_Filter(const std::string& sc_name,
                                          const SymmetricKey& key) :
    buffer(DEFAULT_BUFFERSIZE)
diff --git a/src/filters/filters.h b/src/filters/filters.h
index af9e6a6cc..6cfbef3c0 100644
--- a/src/filters/filters.h
+++ b/src/filters/filters.h
@@ -55,6 +55,12 @@ class BOTAN_DLL StreamCipher_Filter : public Keyed_Filter
 
       /**
       * Construct a stream cipher filter.
+      * @param cipher_obj a cipher object to use
+      */
+      StreamCipher_Filter(StreamCipher* cipher_obj);
+
+      /**
+      * Construct a stream cipher filter.
       * @param cipher the name of the desired cipher
       */
       StreamCipher_Filter(const std::string& cipher);