| =pod |
| |
| =head1 NAME |
| |
| EVP_PKEY_print_public, EVP_PKEY_print_private, EVP_PKEY_print_params - public key algorithm printing routines. |
| |
| =head1 SYNOPSIS |
| |
| #include <openssl/evp.h> |
| |
| int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, |
| int indent, ASN1_PCTX *pctx); |
| int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, |
| int indent, ASN1_PCTX *pctx); |
| int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, |
| int indent, ASN1_PCTX *pctx); |
| |
| =head1 DESCRIPTION |
| |
| The functions EVP_PKEY_print_public(), EVP_PKEY_print_private() and |
| EVP_PKEY_print_params() print out the public, private or parameter components |
| of key B<pkey> respectively. The key is sent to BIO B<out> in human readable |
| form. The parameter B<indent> indicated how far the printout should be indented. |
| |
| The B<pctx> parameter allows the print output to be finely tuned by using |
| ASN1 printing options. If B<pctx> is set to NULL then default values will |
| be used. |
| |
| =head1 NOTES |
| |
| Currently no public key algorithms include any options in the B<pctx> parameter |
| parameter. |
| |
| If the key does not include all the components indicated by the function then |
| only those contained in the key will be printed. For example passing a public |
| key to EVP_PKEY_print_private() will only print the public components. |
| |
| =head1 RETURN VALUES |
| |
| These functions all return 1 for success and 0 or a negative value for failure. |
| In particular a return value of -2 indicates the operation is not supported by |
| the public key algorithm. |
| |
| =head1 SEE ALSO |
| |
| L<EVP_PKEY_CTX_new(3)|EVP_PKEY_CTX_new(3)>, |
| L<EVP_PKEY_keygen(3)|EVP_PKEY_keygen(3)> |
| |
| =head1 HISTORY |
| |
| These functions were first added to OpenSSL 1.0.0. |
| |
| =cut |
