OpenSSL校验证书+生成公钥

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RSA

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# 查看md5签名
openssl x509 -in 1.crt -modulus -noout | openssl md5
openssl rsa -in 1.key -modulus -noout | openssl md5

# 生成公钥
openssl x509 -pubkey -in 1.crt -noout > pub1.crt
openssl rsa -in 1.key -pubout -out pub1.key

# 比较公钥
diff pub1.crt pub1.key

ECDSA

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openssl x509 -noout -modulus -in test.com-cert.pem | openssl md5
openssl ec -noout -modulus -in test.com-key.pem | openssl md5

# 生成公钥
openssl pkey -in hdvr-key.key -pubout -out pubkey1.pem |
openssl x509 -pubkey -noout -in hdvr-cert.pem > cert_pubkey1.pem

# 比较公钥
diff cert_pubkey1.pem pubkey1.pem