> From: owner-openssl-users On Behalf Of Manoj
> Sent: Tuesday, December 10, 2013 08:31
> I am creating an EVP_PKEY using functions EVP_PKEY_new() and then
> RSA_generate_key_ex()
> and then wrtting the obtained key to file using function
> PEM_write_PrivateKey().
> As the writing of key to file required a passpharse, which is passed as
> argument to PEM_write_PrivateKey().
>
> But I want to remove this passpharse from file so that it not required to
> provided during SSL_CTX_use_PrivateKey_file() or SSL connection.
>
As the man page tells you, if the cipher argument to write_PrivateKey
is null it does not encrypt. (Also write_{PKCS8,RSA,DSA,EC}PrivateKey.)
Make sure to protect the resulting file from unauthorized access or copying.
BTW one slightly outdated bit: since I believe 1.0.0 the "plain"
PEM_write_PrivateKey defaults to PKCS8 format, same as
write_PKCS8PrivateKey, no longer the "traditional" formats,
which are still available under their specific names.
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