instance method
OpenSSL::PKey::DH#export
() -> ::String
dh.export → aString
ext/openssl/ossl_pkey_dh.c
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static VALUE
ossl_dh_export(VALUE self)
{
OSSL_3_const DH *dh;
BIO *out;
VALUE str;
GetDH(self, dh);
if (!(out = BIO_new(BIO_s_mem()))) {
ossl_raise(ePKeyError, NULL);
}
if (!PEM_write_bio_DHparams(out, dh)) {
BIO_free(out);
ossl_raise(ePKeyError, NULL);
}
str = ossl_membio2str(out);
return str;
}
Serializes the DH parameters to a PEM-encoding.
Note that any existing per-session public/private keys will not get encoded, just the Diffie-Hellman parameters will be encoded.
PEM-encoded parameters will look like:
-----BEGIN DH PARAMETERS----- [...] -----END DH PARAMETERS-----
See also public_to_pem (X.509 SubjectPublicKeyInfo) and private_to_pem (PKCS #8 PrivateKeyInfo or EncryptedPrivateKeyInfo) for serialization with the private or public key components.