/usr/man/cat.3/EVP_PKEY_print_params.3

EVP_PKEY_print_private(3)    OpenSSL    EVP_PKEY_print_private(3)

NAME

     EVP_PKEY_print_public, EVP_PKEY_print_private,
     EVP_PKEY_print_params - public key algorithm printing
     routines.

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);

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 pkey
     respectively. The key is sent to BIO out in human readable
     form. The parameter indent indicated how far the printout
     should be indented.

     The pctx parameter allows the print output to be finely
     tuned by using ASN1 printing options. If pctx is set to NULL
     then default values will be used.

NOTES

     Currently no public key algorithms include any options in
     the 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.

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.

SEE ALSO

     EVP_PKEY_CTX_new(3), EVP_PKEY_keygen(3)

HISTORY

     These functions were first added to OpenSSL 1.0.0.

1.0.2t               Last change: 2019-09-10                    1

See also EVP_PKEY_print_private(3)
See also EVP_PKEY_print_public(3)