如何使用keytool打印证书的公钥? [英] How to print the public key of a certificate using keytool?
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问题描述
有没有办法在keytool打印证书的publick密钥?我试过:
Is there a way in keytool to print the publick key of a certificate? I tried:
keytool -printcert -file client.crt
但它只提供以下信息:
Owner: CN=client, OU=as, O=as, L=as, ST=as, C=as
Issuer: EMAILADDRESS=as, CN=ca, OU=as, O=as, L=as, ST=as, C=as
Serial number: 3
Valid from: Tue Apr 10 12:18:47 GMT+05:30 2012 until: Wed Apr 10 12:18:47 GMT+05
:30 2013
Certificate fingerprints:
MD5: 26:C0:29:E9:8C:AB:C3:9E:95:38:74:8A:87:D3:86:8D
SHA1: 5C:5A:BA:47:44:83:7E:CB:48:BE:DD:E5:39:51:24:42:C6:C5:60:8B
SHA256: DA:26:B8:C8:F4:04:3E:62:F3:7F:3B:EC:1D:9F:85:66:28:00:45:55:66:
15:FF:BB:37:77:97:59:F0:EC:0B:B6
Signature algorithm name: SHA1withRSA
Version: 1
这里没有公钥。
推荐答案
c $ c> openssl 。
You can do that With openssl
.
如果此证书是DER编码(二进制),请使用:
If this certificate is DER-encoded (binary), use:
openssl x509 -inform der -in client.crt -pubkey -noout
用于PEM编码的使用 -inform pem
选项(或根本没有 -inform
)。
for PEM-encoded use -inform pem
option (or no -inform
at all).
要查看公钥的详细信息,请使用:
To see details of public key, use:
openssl x509 -inform der -in client.crt -pubkey -noout | openssl rsa -pubin -text -noout
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