Unverified50% confidenceFactExact time
Signal协议综合运用了椭圆曲线Diffie-Hellman密钥交换（ECDH）、Double Ratchet算法和预密钥机制，保障前向安全性
1
Sources
50%
Confidence
Long-term
Relevance
7/8/2026
First Seen
Sources
WhatsApp为何如此耗电？技术原因深度剖析与省电指南
hackernewshackernews7/7/2026
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