Add Zeroize

Cargo.lock

@@ -131,9 +131,9 @@ dependencies = [
 
 [[package]]
 name = "autocfg"
-version = "1.2.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1fdabc7756949593fe60f30ec81974b613357de856987752631dea1e3394c80"
+checksum = "0c4b4d0bd25bd0b74681c0ad21497610ce1b7c91b1022cd21c80c6fbdd9476b0"
 
 [[package]]
 name = "axum"
@@ -969,9 +969,9 @@ dependencies = [
 
 [[package]]
 name = "num-iter"
-version = "0.1.44"
+version = "0.1.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d869c01cc0c455284163fd0092f1f93835385ccab5a98a0dcc497b2f8bf055a9"
+checksum = "1429034a0490724d0075ebb2bc9e875d6503c3cf69e235a8941aa757d83ef5bf"
 dependencies = [
  "autocfg",
  "num-integer",
@@ -980,9 +980,9 @@ dependencies = [
 
 [[package]]
 name = "num-traits"
-version = "0.2.18"
+version = "0.2.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da0df0e5185db44f69b44f26786fe401b6c293d1907744beaa7fa62b2e5a517a"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
 dependencies = [
  "autocfg",
  "libm",
@@ -1321,6 +1321,7 @@ dependencies = [
  "sqlx",
  "tokio",
  "tower",
+ "zeroize",
 ]
 
 [[package]]
@@ -2239,3 +2240,17 @@ name = "zeroize"
 version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "525b4ec142c6b68a2d10f01f7bbf6755599ca3f81ea53b8431b7dd348f5fdb2d"
+dependencies = [
+ "zeroize_derive",
+]
+
+[[package]]
+name = "zeroize_derive"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.60",
+]

Cargo.toml

@@ -6,6 +6,7 @@ edition = "2021"
 [dependencies]
 log = "0.4.21"
 env_logger = "0.11.3"
+zeroize = { version = "1.7.0", features = ["zeroize_derive"] }
 chrono = { version = "0.4.38", features = ["serde"] }
 tokio = { version = "1.37.0", features = ["full"] }
 tower = { version = "0.4.13", features = [] }

src/engines/kv/structs.rs

@@ -1,8 +1,9 @@
 use chrono::{DateTime, Utc};
 use serde::{Deserialize, Serialize};
+use zeroize::ZeroizeOnDrop;
 use std::{collections::HashMap, vec};
 
-#[derive(Serialize, Deserialize, Debug)]
+#[derive(Serialize, Deserialize, Debug, ZeroizeOnDrop)]
 pub struct KvSecret {
     // TODO: maybe change later for field validation etc.
     pub data: String,