Openssl Asn1parse无法正确提取数据
使用asn1parse解码openssl数据时出现问题。使用asn1parse命令后，out.pem contains与预期输出不匹配。实际输出和预期输出如下所示。请在这个问题上帮我。
openssl asn1parse -inform PEM -in base64.pem -out out.pem
cat base64.pem 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
0:d=0 hl=2 l= 86 prim: appl [ 7 ] 88:d=0 hl=2 l= 67高级版:应用程序9
"Iy9iaW4vYmFzaAplY2hvICJpbnNpZGUgdGhlIHBvc3QtY29uZmlndXJhdGlvbi1zY3JpcHQuLi4iCg==“out.pem GVudC1va2F5Lz4KPC90b3A+Cg=="，”配置后脚本“：cat }}
预期的引导映像{\n“b'0\x82\x03\x99\x06\x0b*\x86H\x86\xf7\r\x01\t\x10\x01+\xa0\x82\x03\x88\x04\x82\x03\x84{\n - "ietf-sztp-conveyed-info:onboarding-information"：”：{\n“out.pem -uri”：\n "https://example.com/my-boot-image.img"\n，\n“镜像校验”：\n {\n "hash-algorithm"：“ietf-sztp-verification info:sha-256”，\n“哈希值”："d8:56:8d:d2:10:5e:dc:75:4c:c7:87:ae:f1:27:97:65:e0:65:17:6c:04:61:22:fa:3e:82:cf:9d:0f:ae:1a:3d"\n }\n \n }，\n“预配置脚本”："Iy9iaW4vYmFzaAplY2hvICJpbnNpZGUgdGhlIHByZS1jb25maWd1cmF0aW9uLXNjcmlwdC4uLiIK"，\n“配置处理”：“合并”，\n“配置”："PHRvcCB4bWxucz0iaHR0cHM6L2V4YW1wbGUuY29tL2NvbmZpZyI+CiAgPGFueS14bWwtY29udGVudC1va2F5Lz4KPC90b3A+Cg=="，\n“配置后脚本”："Iy9iaW4vYmFzaAplY2hvICJpbnNpZGUgdGhlIHBvc3QtY29uZmlndXJhdGlvbi1zY3JpcHQuLi4iCg=="\n }\n}‘
回答 1
Stack Overflow用户
发布于 2020-10-17 12:39:26
您的输入文件包含一个很长的base64行。OpenSSL要求base64格式的输入以64个字符换行。
如果您在*nix环境中，您可以使用fold工具进行换行。您可以使用换行创建不同版本的输入文件，也可以使用Process Substitution一次性完成此操作，如下所示：
$ openssl asn1parse -in <(fold -w 64 base64.pem)
0:d=0 hl=4 l= 921 cons: SEQUENCE
4:d=1 hl=2 l= 11 prim: OBJECT :1.2.840.113549.1.9.16.1.43
17:d=1 hl=4 l= 904 cons: cont [ 0 ]
21:d=2 hl=4 l= 900 prim: OCTET STRING :{
"ietf-sztp-conveyed-info:onboarding-information": {
"boot-image": {
"download-uri": [
"https://example.com/my-boot-image.img"
],
"image-verification": [
{
"hash-algorithm": "ietf-sztp-conveyed-info:sha-256",
"hash-value": "f0:f7:5e:34:53:c0:11:72:e3:cf:e1:d9:3a:dc:c7:bf:b5:c6:7f:17:6f:7e:30:75:0a:13:42:16:34:24:9c:2d"
}
]
},
"pre-configuration-script": "Iy9iaW4vYmFzaAplY2hvICJpbnNpZGUgdGhlIHByZS1jb25maWd1cmF0aW9uLXNjcmlwdC4uLiIK",
"configuration-handling": "merge",
"configuration": "PHRvcCB4bWxucz0iaHR0cHM6L2V4YW1wbGUuY29tL2NvbmZpZyI+CiAgPGFueS14bWwtY29udGVudC1va2F5Lz4KPC90b3A+Cg==",
"post-configuration-script": "Iy9iaW4vYmFzaAplY2hvICJpbnNpZGUgdGhlIHBvc3QtY29uZmlndXJhdGlvbi1zY3JpcHQuLi4iCg=="
}
}https://stackoverflow.com/questions/64393432
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