Add security module (optional feature): With Block Integrity Block de…

…fined in RFC 9172 and a test case defined in RFC 9173

Cargo.toml

@@ -34,6 +34,7 @@ harness = false
 default = ["binary-build"]
 binary-build = ["instant"]
 benchmark-helpers = ["instant"]
+bpsec = ["dep:sha2", "dep:hmac", "dep:hex-literal"]
 
 [dependencies]
 humantime = "2.1.0"
@@ -45,6 +46,11 @@ crc = "3.0.1"
 thiserror = "1.0.23"
 bitflags = "2.2.1"
 
+# bpsec dependencies
+sha2 = { version ="0.10.6", optional = true }
+hmac = { version ="0.12.1", optional = true }
+hex-literal = { version ="0.3.4", optional = true }
+
 # non wasm config
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]

src/lib.rs

@@ -49,6 +49,8 @@ pub mod ffi;
 pub mod flags;
 pub mod helpers;
 pub mod primary;
+#[cfg(feature = "bpsec")]
+pub mod security;
 
 #[cfg(target_arch = "wasm32")]
 pub mod wasm;