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| 1 =pod |
| 2 |
| 3 =head1 NAME |
| 4 |
| 5 EVP_PKEY_print_public, EVP_PKEY_print_private, EVP_PKEY_print_params - public ke
y algorithm printing routines. |
| 6 |
| 7 =head1 SYNOPSIS |
| 8 |
| 9 #include <openssl/evp.h> |
| 10 |
| 11 int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, |
| 12 int indent, ASN1_PCTX *pctx); |
| 13 int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, |
| 14 int indent, ASN1_PCTX *pctx); |
| 15 int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, |
| 16 int indent, ASN1_PCTX *pctx); |
| 17 |
| 18 =head1 DESCRIPTION |
| 19 |
| 20 The functions EVP_PKEY_print_public(), EVP_PKEY_print_private() and |
| 21 EVP_PKEY_print_params() print out the public, private or parameter components |
| 22 of key B<pkey> respectively. The key is sent to BIO B<out> in human readable |
| 23 form. The parameter B<indent> indicated how far the printout should be indented. |
| 24 |
| 25 The B<pctx> parameter allows the print output to be finely tuned by using |
| 26 ASN1 printing options. If B<pctx> is set to NULL then default values will |
| 27 be used. |
| 28 |
| 29 =head1 NOTES |
| 30 |
| 31 Currently no public key algorithms include any options in the B<pctx> parameter |
| 32 parameter. |
| 33 |
| 34 If the key does not include all the components indicated by the function then |
| 35 only those contained in the key will be printed. For example passing a public |
| 36 key to EVP_PKEY_print_private() will only print the public components. |
| 37 |
| 38 =head1 RETURN VALUES |
| 39 |
| 40 These functions all return 1 for success and 0 or a negative value for failure. |
| 41 In particular a return value of -2 indicates the operation is not supported by |
| 42 the public key algorithm. |
| 43 |
| 44 =head1 SEE ALSO |
| 45 |
| 46 L<EVP_PKEY_CTX_new(3)|EVP_PKEY_CTX_new(3)>, |
| 47 L<EVP_PKEY_keygen(3)|EVP_PKEY_keygen(3)> |
| 48 |
| 49 =head1 HISTORY |
| 50 |
| 51 These functions were first added to OpenSSL 1.0.0. |
| 52 |
| 53 =cut |
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