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OpenSSL "genpkey dh_paramgen_prime_len:256" - DH Short Keys
How to generate a new DH key pair with a longer key size using OpenSSL "genpkey" command?
✍: FYIcenter.com
If you need a new DH key pair with a longer key size for testing purpose,
you can use the OpenSSL "genpkey" command as shown below:
C:\Users\fyicenter>\local\openssl\openssl OpenSSL> genpkey -genparam -algorithm dh -out dh_test.prm -pkeyopt dh_paramgen_prime_len:256 ..+...............................+.......+...+.........+..........+.....+...... +....+.........+..+....+..........+...+.............+........+..........+.....+. .............+............++*++*++*++*++*++*++*++*++*++*++*++* OpenSSL> genpkey -paramfile dh_test.prm -out dh_test.key OpenSSL> pkey -in dh_test.key -text -noout DH Private-Key: (256 bit) private-key: 6c:dc:6a:8e:20:70:0b:51:48:17:36:a1:40:7f:d7: b1:db:e2:44:b4:a2:e2:43:2f:b6:af:2a:a2:d5:c8: a3:34 public-key: 00:ae:1e:0c:de:f3:0f:f7:d8:55:d1:1e:a6:90:d0: 20:51:7a:8e:72:3b:b2:53:d4:da:f2:99:e7:42:1d: 13:88:19 prime: 00:de:a5:5b:2c:59:65:ad:ef:7e:66:48:13:af:8a: 78:69:3c:80:b3:3c:77:82:44:20:ff:ca:6c:b6:9e: 56:7b:2b generator: 2 (0x2)
What this test tells us:
⇒ OpenSSL "genpkey dh_paramgen_prime_len:3072" - DH Long Keys
⇐ OpenSSL "pkey -pubin" - View DH Public Key
2017-09-01, 2616🔥, 0💬
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