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package main | |
import ( | |
"bytes" | |
"crypto/sha1" | |
"crypto/x509" | |
"crypto/x509/pkix" | |
"encoding/asn1" | |
"encoding/hex" | |
"encoding/pem" | |
"fmt" | |
) | |
var data = []byte(` | |
-----BEGIN CERTIFICATE----- | |
MIIDNTCCAh2gAwIBAgIJAJ3pKHCWixRYMA0GCSqGSIb3DQEBCwUAMBYxFDASBgNV | |
BAMMC0Vhc3ktUlNBIENBMB4XDTIwMDMwNTA1MzE1M1oXDTMwMDMwMzA1MzE1M1ow | |
FjEUMBIGA1UEAwwLRWFzeS1SU0EgQ0EwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw | |
ggEKAoIBAQCz0aPKxXN6n3bioRFfmRFvFcRkxVlV+QeZd3zT6z0Dz7sysGai72wk | |
WHlFgtclEPIXrpG4gVGSZT4g7yCMYmRJL0BEwFY81RJfzAyk9tSn9P/XozVQmKkA | |
CCdqh8962jZi2VKChdF+x8CbSsy0ahpps7pF24iaWXPA+sKPCFcDS6sIGjLCSmFN | |
FN1cvFx31n/sK/BiTqi7ECSx7xa/cCHcHCcb4CZrgPgs/FMPDORazIeiqvGYGSkY | |
IjLb5frR3zzYeIVbf3qCMRbACK0+2TgRNFcYs/x/NnzqpSWA3iu0NaY8kTX40fqh | |
KFQsnzUGaTWaJ7sN4BqTELC4bywVFLn3AgMBAAGjgYUwgYIwHQYDVR0OBBYEFAJK | |
Dea7FPR4U5dRkX9CddhHFwuFMEYGA1UdIwQ/MD2AFAJKDea7FPR4U5dRkX9CddhH | |
FwuFoRqkGDAWMRQwEgYDVQQDDAtFYXN5LVJTQSBDQYIJAJ3pKHCWixRYMAwGA1Ud | |
EwQFMAMBAf8wCwYDVR0PBAQDAgEGMA0GCSqGSIb3DQEBCwUAA4IBAQChc48TRWxw | |
rqKZ6aFrQ876Sf2QOxm//BUtpgo4tQz6Bo+VUTYyaLaPZ3ou9ou3B2pwPMNo2vns | |
FAbo8u1vQLtRf18Dqi4R4V+3QMAE51TubMrm5fHEFpIL3e7OxpeY+hFVDmzuhXwE | |
JL9KYReXfXtZzKpPSP8LvUU5lwEfm6YD1WHqvLv6Qe47JZfuu68DCTSWN2qAeSJk | |
qPu09DcHt1gkDI/216aGn0w7J9mSG4mRGaJa+1mmMFzgzEgsSu/LX0dNEhgYTkJr | |
YnfNu8r5E/c8u58SliRMJYFGohlgdbrdrE+5kVqQvYGOsBbpq6gfl87Slm8VUi8i | |
L33kRbJsyJZz | |
-----END CERTIFICATE----- | |
`) | |
func main() { | |
block, _ := pem.Decode(data) | |
cert, err := x509.ParseCertificate(block.Bytes) | |
if err != nil { | |
panic(err) | |
} | |
var pkInfo struct { | |
Algo pkix.AlgorithmIdentifier | |
BitString asn1.BitString | |
} | |
if _, err := asn1.Unmarshal(cert.RawSubjectPublicKeyInfo, &pkInfo); err != nil { | |
panic(err) | |
} | |
ski := sha1.Sum(pkInfo.BitString.Bytes) | |
if bytes.Compare(ski[:], cert.SubjectKeyId) == 0 { | |
fmt.Println("[OK]") | |
} else { | |
fmt.Println("[NG]") | |
} | |
fmt.Println("Excected : " + hex.EncodeToString(cert.SubjectKeyId)) | |
fmt.Println("Actual : " + hex.EncodeToString(ski[:])) | |
} |
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