test: Adapt test_stats_key_creation_timestamp()

feat: Reduce resolution of key_create_timestamps in the statistics
Right now, I'm reducing the resolution to 4 weeks (i.e. the timestamp is rounded to the next multiple of 4 weeks); we could change this.
2026-05-07 00:46:31 +03:00 · 2026-05-05 23:10:36 +02:00 · 2026-05-05 23:01:12 +02:00
3 changed files with 23 additions and 6 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3941,14 +3941,15 @@ checksum = "c08d65885ee38876c4f86fa503fb49d7b507c2b62552df7c70b2fce627e06381"

 [[package]]
 name = "openssl"
-version = "0.10.79"
+version = "0.10.78"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf0b434746ee2832f4f0baf10137e1cabb18cbe6912c69e2e33263c45250f542"
+checksum = "f38c4372413cdaaf3cc79dd92d29d7d9f5ab09b51b10dded508fb90bb70b9222"
 dependencies = [
 "bitflags 2.11.0",
 "cfg-if",
 "foreign-types",
 "libc",
+ "once_cell",
 "openssl-macros",
 "openssl-sys",
 ]
@@ -3981,9 +3982,9 @@ dependencies = [

 [[package]]
 name = "openssl-sys"
-version = "0.9.115"
+version = "0.9.114"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "158fe5b292746440aa6e7a7e690e55aeb72d41505e2804c23c6973ad0e9c9781"
+checksum = "13ce1245cd07fcc4cfdb438f7507b0c7e4f3849a69fd84d52374c66d83741bb6"
 dependencies = [
 "cc",
 "libc",
--- a/src/stats.rs
+++ b/src/stats.rs
@@ -29,6 +29,7 @@ const STATISTICS_BOT_VCARD: &str = include_str!("../assets/statistics-bot.vcf");
 const SENDING_INTERVAL_SECONDS: i64 = 3600 * 24 * 7; // 1 week
 // const SENDING_INTERVAL_SECONDS: i64 = 60; // 1 minute (for testing)
 const MESSAGE_STATS_UPDATE_INTERVAL_SECONDS: i64 = 4 * 60; // 4 minutes (less than the lowest ephemeral messages timeout)
+const KEY_CREATE_TIMESTAMP_RESOLUTION: u32 = 3600 * 24 * 7 * 4; // 4 weeks

 #[derive(Serialize)]
 struct Statistics {
@@ -348,7 +349,13 @@ async fn get_stats(context: &Context) -> Result<String> {
    let key_create_timestamps: Vec<u32> = load_self_public_keyring(context)
        .await?
        .iter()
-        .map(|k| k.created_at().as_secs())
+        .map(|k| {
+            k.created_at()
+                .as_secs()
+                .div_ceil(KEY_CREATE_TIMESTAMP_RESOLUTION)
+                .checked_mul(KEY_CREATE_TIMESTAMP_RESOLUTION)
+                .unwrap_or(0)
+        })
        .collect();

    let sending_enabled_timestamps =
--- a/src/stats/stats_tests.rs
+++ b/src/stats/stats_tests.rs
@@ -486,6 +486,15 @@ async fn test_stats_key_creation_timestamp() -> Result<()> {
    // Alice uses a pregenerated key. It was created at this timestamp:
    const ALICE_KEY_CREATION_TIME: u128 = 1582855645;

+    // The key creation time's resolution is reduced in order to prevent deanonymization:
+    const CENSORED_KEY_CREATION_TIME: u128 = 1584576000;
+    assert!(CENSORED_KEY_CREATION_TIME.is_multiple_of(KEY_CREATE_TIMESTAMP_RESOLUTION as u128));
+    assert!(CENSORED_KEY_CREATION_TIME > ALICE_KEY_CREATION_TIME);
+    assert!(
+        CENSORED_KEY_CREATION_TIME - ALICE_KEY_CREATION_TIME
+            < KEY_CREATE_TIMESTAMP_RESOLUTION as u128
+    );
+
    let alice = &TestContext::new_alice().await;
    alice.set_config_bool(Config::StatsSending, true).await?;

@@ -495,7 +504,7 @@ async fn test_stats_key_creation_timestamp() -> Result<()> {
    assert_eq!(
        key_create_timestamps,
        &vec![Value::Number(
-            Number::from_u128(ALICE_KEY_CREATION_TIME).unwrap()
+            Number::from_u128(CENSORED_KEY_CREATION_TIME).unwrap()
        )]
    );
Author	SHA1	Message	Date
Hocuri	0df7cc2612	test: Adapt test_stats_key_creation_timestamp()	2026-05-05 23:10:36 +02:00
Hocuri	24876f92aa	feat: Reduce resolution of key_create_timestamps in the statistics Right now, I'm reducing the resolution to 4 weeks (i.e. the timestamp is rounded to the next multiple of 4 weeks); we could change this.	2026-05-05 23:01:12 +02:00