NoteEncryption implementation and integration, removal of ECIES and crypto++ dependencies.

depends/packages/crypto++.mk

@@ -1,20 +0,0 @@
-package=crypto++
-$(package)_version=5.6.2
-$(package)_download_path=http://www.cryptopp.com/
-$(package)_file_name=cryptopp562.zip
-$(package)_sha256_hash=5cbfd2fcb4a6b3aab35902e2e0f3b59d9171fee12b3fc2b363e1801dfec53574
-$(package)_dependencies=
-
-# SECURITY BUG: _extract_cmds is responsible for verifying the archive
-# hash, but does not do so here:
-define $(package)_extract_cmds
-  unzip $($(package)_source_dir)/$($(package)_file_name)
-endef
-
-define $(package)_build_cmds
-  $(MAKE) static CXXFLAGS='-DNDEBUG -g -O2 -fPIC'
-endef
-
-define $(package)_stage_cmds
-  $(MAKE) install PREFIX=$($(package)_staging_dir)$(host_prefix)
-endef

depends/packages/packages.mk

@@ -1,4 +1,4 @@
-zerocash_packages := libsnark crypto++ libgmp libsodium
+zerocash_packages := libsnark libgmp libsodium
 packages := boost openssl $(zerocash_packages) googletest
 native_packages := native_ccache native_comparisontool