diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c7f26841e4..8bab10f7e5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -138,7 +138,7 @@ jobs:
           USE_PRELOAD: 1,4
           SAVE_BRANCH_LAUNCH_DEPTH: 1
         run: |
-          cat pkgs.txt.part.${{ matrix.part }} | xargs go test -mod=readonly -timeout 30m -coverprofile=${{ matrix.part }}profile.out -covermode=atomic -tags='norace ledger test_ledger_mock goleveldb'
+          cat pkgs.txt.part.${{ matrix.part }} | xargs go test -mod=readonly -timeout 30m -coverprofile=${{ matrix.part }}profile.out -covermode=atomic -tags='norace ledger test_ledger_mock goleveldb libsodium'
         if: env.GIT_DIFF
       - uses: actions/upload-artifact@v3
         with:
@@ -219,7 +219,7 @@ jobs:
           USE_PRELOAD: 1,4
           SAVE_BRANCH_LAUNCH_DEPTH: 1
         run: |
-          xargs --arg-file=pkgs.txt.part.${{ matrix.part }} go test -mod=readonly -timeout 30m -race -tags='cgo ledger test_ledger_mock goleveldb'
+          xargs --arg-file=pkgs.txt.part.${{ matrix.part }} go test -mod=readonly -timeout 30m -race -tags='cgo ledger test_ledger_mock goleveldb libsodium'
         if: env.GIT_DIFF
       - uses: actions/upload-artifact@v3
         with:
diff --git a/.gitignore b/.gitignore
index ba30e1e40b..99e40be93e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -56,3 +56,5 @@ dependency-graph.png
 *.out
 *.synctex.gz
 
+# tools
+tools/sodium
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000..d1f648c8f9
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "tools/libsodium"]
+	path = tools/libsodium
+	url = https://github.com/algorand/libsodium.git
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 06b33ccaea..259282ba00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ## [Unreleased](https://github.com/line/lbm-sdk/compare/v0.46.0-rc9...HEAD)
 
 ### Features
+(build) [\#793](https://github.com/line/lbm-sdk/pull/793) enable to use libsodium version ostracon
 
 ### Improvements
 * (x/auth) [\#776](https://github.com/line/lbm-sdk/pull/776) remove unused MsgEmpty
diff --git a/Makefile b/Makefile
index 76ba1cabf5..145be45a96 100644
--- a/Makefile
+++ b/Makefile
@@ -68,6 +68,15 @@ else
   endif
 endif
 
+# VRF library selection
+ifeq (libsodium,$(findstring libsodium,$(LBM_BUILD_OPTIONS)))
+  CGO_ENABLED=1
+  BUILD_TAGS += gcc libsodium
+  LIBSODIUM_TARGET = libsodium
+  CGO_CFLAGS += "-I$(LIBSODIUM_OS)/include"
+  CGO_LDFLAGS += "-L$(LIBSODIUM_OS)/lib -lsodium"
+endif
+
 # secp256k1 implementation selection
 ifeq (libsecp256k1,$(findstring libsecp256k1,$(LBM_BUILD_OPTIONS)))
   CGO_ENABLED=1
@@ -115,7 +124,6 @@ include contrib/devtools/Makefile
 BUILD_TARGETS := build install
 
 build: BUILD_ARGS=-o $(BUILDDIR)/
-	CGO_CFLAGS=$(CGO_CFLAGS) CGO_LDFLAGS=$(CGO_LDFLAGS) CGO_ENABLED=$(CGO_ENABLED) go build -mod=readonly $(BUILD_FLAGS) $(BUILD_ARGS) ./...
 
 build-docker: go.sum $(BUILDDIR)/
 	docker build -t simapp:latest . --platform="linux/amd64" --build-arg ARCH=$(ARCH)
@@ -124,8 +132,8 @@ build-docker: go.sum $(BUILDDIR)/
 build-linux:
 	GOOS=linux GOARCH=$(if $(findstring aarch64,$(shell uname -m)) || $(findstring arm64,$(shell uname -m)),arm64,amd64) LEDGER_ENABLED=false $(MAKE) build
 
-$(BUILD_TARGETS): go.sum $(BUILDDIR)/
-	go $@ -mod=readonly $(BUILD_FLAGS) $(BUILD_ARGS) ./...
+$(BUILD_TARGETS): go.sum $(BUILDDIR)/ $(LIBSODIUM_TARGET)
+	CGO_CFLAGS=$(CGO_CFLAGS) CGO_LDFLAGS=$(CGO_LDFLAGS) CGO_ENABLED=$(CGO_ENABLED) go $@ -mod=readonly $(BUILD_FLAGS) $(BUILD_ARGS) ./...
 
 $(BUILDDIR)/:
 	mkdir -p $(BUILDDIR)/
@@ -536,3 +544,27 @@ rosetta-data:
 	docker container rm data_dir_build
 
 .PHONY: rosetta-data
+
+###############################################################################
+###                                  tools                                  ###
+###############################################################################
+
+VRF_ROOT = $(shell pwd)/tools
+LIBSODIUM_ROOT = $(VRF_ROOT)/libsodium
+LIBSODIUM_OS = $(VRF_ROOT)/sodium/$(shell go env GOOS)_$(shell go env GOARCH)
+ifneq ($(TARGET_HOST), "")
+LIBSODIUM_HOST = "--host=$(TARGET_HOST)"
+endif
+
+libsodium:
+	@if [ ! -f $(LIBSODIUM_OS)/lib/libsodium.a ]; then \
+		rm -rf $(LIBSODIUM_ROOT) && \
+		mkdir $(LIBSODIUM_ROOT) && \
+		git submodule update --init --recursive && \
+		cd $(LIBSODIUM_ROOT) && \
+		./autogen.sh && \
+		./configure --disable-shared --prefix="$(LIBSODIUM_OS)" $(LIBSODIUM_HOST) && \
+		$(MAKE) && \
+		$(MAKE) install; \
+	fi
+.PHONY: libsodium
diff --git a/tools/libsodium b/tools/libsodium
new file mode 160000
index 0000000000..004952bb57
--- /dev/null
+++ b/tools/libsodium
@@ -0,0 +1 @@
+Subproject commit 004952bb57b2a6d2c033969820c80255e8362615