End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

OpenSSL::PKey::RSA#to_text

rsa.to_text => String

ext/openssl/ossl_pkey_rsa.c View on GitHub ↗

static VALUE
ossl_rsa_to_text(VALUE self)
{
    RSA *rsa;
    BIO *out;
    VALUE str;

    GetRSA(self, rsa);
    if (!(out = BIO_new(BIO_s_mem()))) {
        ossl_raise(eRSAError, NULL);
    }
    if (!RSA_print(out, rsa, 0)) { /* offset = 0 */
        BIO_free(out);
        ossl_raise(eRSAError, NULL);
    }
    str = ossl_membio2str(out);

    return str;
}

THIS METHOD IS INSECURE, PRIVATE INFORMATION CAN LEAK OUT!!!

Dumps all parameters of a keypair to a String

Don’t use :-)) (It’s up to you)