Unverified50% confidenceFactExact time
SigV4 (Signature Version 4) is the protocol standard used by AWS to cryptographically sign HTTP requests, using access keys to apply HMAC-SHA256 signatures over request content, timestamps, and target services.
1
Sources
50%
Confidence
Long-term
Relevance
10/4/2026
First Seen
Sources
Related Entities
Related Claims
Unverified企业级接口通常涉及多层安全机制：JWT用于无状态身份认证，OAuth 2.0处理第三方授权，HMAC-SHA256负责请求签名防篡改，AES/RSA用于敏感参数加密64% similarVerifiedIn the case study, the target website's interface POST request carries parameters such as abcode and data, using a national cryptography system combining SM2 asymmetric encryption and SM4 symmetric encryption.63% similarUnverifiedAWS SDK 凭证链按优先级依次检查环境变量、~/.aws/credentials 文件、AWS Config 文件、Container credentials、EC2 IMDSv2，最后是 IAM Identity Center63% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/971981API
curl https://kongchang.com/api/v1/knowledge/claims/971981MCP
get_claim(id=971981)