今天我发现有两种带有PEM格式标题的公钥格式,例如
X.509 SubjectPublicKeyInfo** (PEM header: BEGIN PUBLIC KEY)
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对应于短标题形式;
-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzsQ7MkLsc1lJ8S2WtItN
cfj7pbdB6PVcRHEEjbie97Rqthkr6h2WE5rVj0BZNwFjs4NIUYws2KeQjexZ8NEY
qpcP9iPMjdNgLpU8uL03QMti+y+y0IU4493KxKxjprjtu6no0/O5TwNs+/r+7hmF
/8d+2mhyLJQbtuvQQ6mvg6roCMuqzRS91SObzT1ojCjY+AbUrmVZ5jmklHCv7uah
EoTsB3S7wHCBRmelh2j5fWrRBay4h0IB/NSrt1dO/UEVmDSWGjnG+RsDMhYGZXJ1
hJawhqrbuVRZvrMyzqQ0j1xy5buS6jqSHA3wdOixdI8dDpvBnUDGqEIU6gl2Am7h
pwIDAQAB
-----END PUBLIC KEY-----
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和
PKCS#1 RSAPublicKey* (PEM header: BEGIN RSA PUBLIC KEY)
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对应于较长的形式;
-----BEGIN RSA PUBLIC KEY-----
MIIBCgKCAQEA1+skaD+II3MYF/0iGDcFX/E6b0XzSC8I2RapRaCL84EqY8HxWGKn
+7p34ZJwZx9avX0cCUqvTmS6LtuoSGrdLlahrz1qEnkdYqlo9HXXQiKtA9iwaiId
LxPtCnJnGMOMtolwKAJpsr+l68D41mWvvibrwPbeTJsFi0zvrN0rL1YbVYvw3X85
fQm+wgo3s8I5sOWwlkADvfD37KxteEPitfb2cvGfYo+VIhBqqXQUhQSC3jBAUc5o
+P8U3eu84ln2YqiIg9P/iM99HoKFECJ2+mxWM8oz0rS8oqthVOck+KZ7mBiYjEzW
3ytTJIUpX9Sl88oDqkz7Azku/GVEiJNWSQIDAQAB
-----END RSA PUBLIC KEY-----
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我想验证后一种格式的一些公钥,但是我看不出openssl命令行工具显然可以做到这一点.-pubout导出第一种格式,pubin格式拒绝第二种标题;
#openssl rsa -pubin -in rsa.pub -modulus -noout
unable to load Public Key
140154809448256:error:0906D06C:PEM routines:PEM_read_bio:no start line:pem_lib.c:696:Expecting: PUBLIC KEY
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有关openssl的正确命令是什么的建议,或者是否有一些工具可以从命令行执行此操作?
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