[KongchangAI]
Unverified50% confidenceFactExact time

数字签名工程实现中通常先计算消息的密码学哈希(如 SHA-256)再对哈希值签名,因为非对称加密运算开销远大于哈希运算

1
Sources
50%
Confidence
Long-term
Relevance
8/6/2026
First Seen

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MCP
get_claim(id=693920)