int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *pctx);
+ int (*sig_print)(BIO *out,
+ const X509_ALGOR *sigalg, const ASN1_STRING *sig,
+ int indent, ASN1_PCTX *pctx);
void (*pkey_free)(EVP_PKEY *pkey);
int (*pkey_ctrl)(EVP_PKEY *pkey, int op, long arg1, void *arg2);