OpenSSL - OpenSSL "genpkey -genparam" - Generate EC Parameters

OpenSSL "genpkey -genparam" - Generate EC Parameters

Q

How to generate a new EC parameter file using OpenSSL "genpkey -genparam" command?

✍: FYIcenter.com

A

If you need a new EC parameter file in order to create new EC keys, you can use the OpenSSL "genpkey -genparam" command as shown below:

C:\Users\fyicenter>\local\openssl\openssl.exe

OpenSSL> genpkey -genparam -algorithm ec -out my_ec.prm 
   -pkeyopt ec_paramgen_curve:secp112r1

OpenSSL> exit

C:\Users\fyicenter>type my_ec.prm
-----BEGIN EC PARAMETERS-----
MIGLAgEBMBoGByqGSM49AQECDwDbfCq/YuNeZoB2vq0gizA3BA7bfCq/YuNeZoB2
vq0giAQOZZ74ugQ5Fu7eiRFwKyIDFQAA9QsCjk1pbmdodWFRdSkEcng/sQQdBAlI
cjmZWl7na1X5wvCYqJzlr4ckwKI+Dg/3dQACDwDbfCq/YuNedijfrGVhxQIBAQ==
-----END EC PARAMETERS-----

Options used in this command are:

"-genparam" - Generate key generation required parameters
"-algorighm ec" - Use EC algorithm
"-pkeyopt ec_paramgen_curve:secp112r1" - Use the "secp112r1" curve
"-out my_ec.prm" - Save output (the new EC key generation parameters) in a file.

⇒ OpenSSL "pkeyparam -text" - Print EC Parameters in Text

⇐ OpenSSL "genpkey" Command for EC Keys

⇑ OpenSSL "genpkey" Command for EC Keys

⇑⇑ OpenSSL Tutorials

2017-07-15, 1956👍, 0💬

OpenSSL "genpkey -genparam" - Generate EC Parameters
How to generate a new EC parameter file using OpenSSL "genpkey -genparam" command? If you need a new EC parameter file in order to create new EC keys, you can use the OpenSSL "genpkey -genparam" command as shown below: C:\Users\fyicenter>\loc al\openssl\openssl.exeOpenSSL> genpkey -gen... 2017-07-15, 1957👍, 0💬

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How to print EC key generation parameters in text format using OpenSSL "pkeyparam" command? If you want to see contents of a EC key generation parameter file in text format, you can use the OpenSSL "pkeyparam -text" command as shown below: C:\Users\fyicenter>\loc al\openssl\openssl.exeOpenSSL... 2017-08-13, 1035👍, 0💬

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How to re-encrypt a DH key file using OpenSSL "pkey" command? I want to change the encryption password, and maybe change the encryption algorithm. If you want to encrypt an existing DH key file again, you can use the "pkey -aes*" command as shown below: C:\Users\fyicenter>\loc al\openssl\opens... 2017-08-13, 965👍, 0💬

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