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生成GitHub App私钥的Base64格式SHA256哈希及验证匹配问题

验证GitHub App私钥的SHA256值不匹配问题

问题说明

我需要验证下载的GitHub App(非OAuth应用)私钥的有效性。下载完成后,GitHub展示了该密钥的SHA256值,由于我生成的其他密钥末尾都带有=,所以猜测这个值是Base64格式。但我计算得出的SHA256值为0AF42CB67E691B3A9B58167F143C29DF1AE713E3FCEA036149C6273949980D1E,对应的Base64变体为CvQstn5pGzqbWBZ/FDwp3xrnE+P86gNhScYnOUmYDR4=,两者均与GitHub显示的值不匹配。

计算步骤

PowerShell操作

Get-FileHash -Path "my_private_key.pem" -Algorithm SHA256  

$content = Get-Content -Path "my_private_key.pem" -Raw  

$sha256 = [System.Security.Cryptography.SHA256]::Create()  
$hashBytes = $sha256.ComputeHash([System.Text.Encoding]::UTF8.GetBytes($content))  

$base64Hash = [Convert]::ToBase64String($hashBytes)  
Write-Output $base64Hash 

Linux操作

sha256sum my_private_key.pem

sha256_hash=$(openssl dgst -sha256 -binary my_private_key.pem | base64)  
echo $sha256_hash

两种环境下的输出结果完全一致。

示例私钥(已失效,仅作演示)

-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

恳请各位提供帮助:)

内容的提问来源于stack exchange,提问作者thunermay

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最近更新时间:2026.06.14 21:19:55