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Hakase
2019-09-21 00:43:47 +09:00
parent 2e57f602ae
commit 62515c7d8d
1131 changed files with 47556 additions and 24957 deletions
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doc/man3/EVP_PKEY_verify_recover.pod
+19 -4
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@@ -2,12 +2,15 @@
=head1 NAME
EVP_PKEY_verify_recover_init, EVP_PKEY_verify_recover - recover signature using a public key algorithm
EVP_PKEY_verify_recover_init_ex, EVP_PKEY_verify_recover_init,
EVP_PKEY_verify_recover - recover signature using a public key algorithm
=head1 SYNOPSIS
#include <openssl/evp.h>
int EVP_PKEY_verify_recover_init_ex(EVP_PKEY_CTX *ctx,
EVP_SIGNATURE *signature);
int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx);
int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
unsigned char *rout, size_t *routlen,
@@ -15,8 +18,20 @@ EVP_PKEY_verify_recover_init, EVP_PKEY_verify_recover - recover signature using
=head1 DESCRIPTION
The EVP_PKEY_verify_recover_init() function initializes a public key algorithm
context using key B<pkey> for a verify recover operation.
The EVP_PKEY_verify_recover_init_ex() function initializes a public key
algorithm context for performing signature signed data recovery using the
signature algorithm B<signature>.
The signature algorithm B<signature> should be fetched using a call to
L<EVP_SIGNATURE_fetch(3)>.
The EVP_PKEY object associated with B<ctx> must be compatible with that
algorithm.
B<signature> may be NULL in which case the EVP_SIGNATURE algorithm is fetched
implicitly based on the type of EVP_PKEY associated with B<ctx>.
See L<provider(7)/Implicit fetch> for more information about implict fetches.
The EVP_PKEY_verify_recover_init() function is the same as
EVP_PKEY_verify_recover_init_ex() except that the EVP_SIGNATURE algorithm is
always implicitly fetched.
The EVP_PKEY_verify_recover() function recovers signed data
using B<ctx>. The signature is specified using the B<sig> and
@@ -49,7 +64,7 @@ EVP_PKEY_verify_recover_init() and EVP_PKEY_verify_recover() return 1 for succes
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 EXAMPLE
=head1 EXAMPLES
Recover digest originally signed using PKCS#1 and SHA256 digest: