Tag Archives: ctr

Telegram 使用 CDN 加速下載

Telegram 說明他們將會使用 CDN 加速:「More Speed and Security!」。 資料在 CDN 的節點上是加密的,金鑰需要透過 Telegram 的 key server 提供: While these caching nodes are only used to temporarily store public media (imagine Telegram versions of superpopular YouTube hits), all data that goes through them … Continue reading

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BoringSSL 的 FIPS 140-2 驗證

看到由 Google 主導的 BoringSSL 有計劃將其中一塊申請 FIPS 140-2 的驗證計畫 (BoringCrypto 的部份):「FIPS 140-2」。 其中 FIPS 140-2 最有名的後門應該是 Dual_EC_DRBG (定義於 NIST SP 800-90A,被 FIPS 140-2 引用),所以特地講清楚他們選擇哪個演算法: FIPS 140-2 requires that one of its PRNGs be used (which they call DRBGs). In BoringCrypto, we … Continue reading

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