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OpenSSL "rsa -pubin" - View RSA Public Key
How to view contents of an RSA public key file using OpenSSL "rsa" command?
✍: FYIcenter.com
If you want to view contents of an RSA public key stored in a file,
you can use the OpenSSL "rsa -pubin" command as shown below:
C:\Users\fyicenter>\local\openssl\openssl.exe OpenSSL> rsa -in my_rsa_pub.key -pubin -text -noout Public-Key: (2048 bit) Modulus: 00:c7:54:90:53:51:9f:b0:13:41:e9:75:36:9e:aa: f0:20:79:b5:22:65:cf:01:cb:08:9d:03:5f:84:57: 29:ce:99:2e:dc:a9:a6:d0:ba:43:64:5d:68:aa:4a: 8b:34:b9:61:d2:a5:48:22:57:ee:30:d9:d5:34:b0: 28:cd:b5:1b:68:96:a5:15:47:52:18:f0:15:97:b8: c5:45:9c:69:0d:a8:be:77:85:36:c1:ed:78:30:ed: e4:4f:0c:bb:1f:76:5e:44:ac:d6:92:52:f6:14:27: 8a:a3:67:36:d2:0c:c5:39:fc:5d:78:fc:12:c7:d9: 41:4f:b7:9f:14:d7:39:34:74:4f:74:f6:cf:fd:ed: 59:c7:55:6a:07:cc:00:29:38:11:c1:a7:d0:98:57: d8:51:b6:e4:d8:27:39:7e:d6:7c:ca:15:9c:e3:7f: b6:a9:6c:e1:5a:6e:88:83:c9:27:6d:aa:4f:2c:c3: f0:e9:b1:73:c0:3f:9c:93:ee:9d:ef:36:c2:1b:ef: 8d:ac:1b:97:1f:ce:7c:88:32:5f:cc:b8:2b:c2:27: 3b:7d:6d:1c:46:21:7e:c8:1a:62:4e:60:30:e8:6f: 47:1f:40:90:bb:c1:cd:06:03:1f:5d:92:2e:62:36: 44:47:83:0e:6e:6a:92:1a:24:53:c8:df:66:10:5b: 52:5b Exponent: 65537 (0x10001)
Options used in this command are:
The output shows that an RSA public key contains 2 components:
modulus, also called n - The modulus part of the public key exponent, also called e - The exponent part of the public key
⇒ OpenSSL "genrsa 32" - Generate RSA Short Keys
⇐ OpenSSL "rsa -pubout" - Extract RSA Public Key
2017-01-29, 5743👍, 0💬
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