Hakase/openssl-custom
1
0 Fork 0
Code Issues Pull Requests Releases Wiki Activity

Latest update.

Browse Source
This commit is contained in:
Hakase
2020-01-17 19:45:12 +09:00
parent 016df9f433
commit 0f7abb4eb6
1100 changed files with 47785 additions and 16292 deletions
Download Patch File Download Diff File Expand all files Collapse all files
doc/man3/EVP_SignInit.pod
+15 -29
View File
@@ -2,10 +2,8 @@
=head1 NAME
EVP_PKEY_size,
EVP_SignInit, EVP_SignInit_ex, EVP_SignUpdate, EVP_SignFinal,
EVP_PKEY_security_bits - EVP signing
functions
EVP_SignInit, EVP_SignInit_ex, EVP_SignUpdate, EVP_SignFinal
- EVP signing functions
=head1 SYNOPSIS
@@ -17,49 +15,36 @@ functions
void EVP_SignInit(EVP_MD_CTX *ctx, const EVP_MD *type);
int EVP_PKEY_size(const EVP_PKEY *pkey);
int EVP_PKEY_security_bits(const EVP_PKEY *pkey);
=head1 DESCRIPTION
The EVP signature routines are a high level interface to digital
signatures.
EVP_SignInit_ex() sets up signing context B<ctx> to use digest
B<type> from ENGINE B<impl>. B<ctx> must be created with
EVP_SignInit_ex() sets up signing context I<ctx> to use digest
I<type> from B<ENGINE> I<impl>. I<ctx> must be created with
EVP_MD_CTX_new() before calling this function.
EVP_SignUpdate() hashes B<cnt> bytes of data at B<d> into the
signature context B<ctx>. This function can be called several times on the
same B<ctx> to include additional data.
EVP_SignUpdate() hashes I<cnt> bytes of data at I<d> into the
signature context I<ctx>. This function can be called several times on the
same I<ctx> to include additional data.
EVP_SignFinal() signs the data in B<ctx> using the private key B<pkey> and
places the signature in B<sig>. B<sig> must be at least EVP_PKEY_size(pkey)
bytes in size. B<s> is an OUT parameter, and not used as an IN parameter.
EVP_SignFinal() signs the data in I<ctx> using the private key I<pkey> and
places the signature in I<sig>. I<sig> must be at least C<EVP_PKEY_size(pkey)>
bytes in size. I<s> is an OUT parameter, and not used as an IN parameter.
The number of bytes of data written (i.e. the length of the signature)
will be written to the integer at B<s>, at most EVP_PKEY_size(pkey) bytes
will be written to the integer at I<s>, at most C<EVP_PKEY_size(pkey)> bytes
will be written.
EVP_SignInit() initializes a signing context B<ctx> to use the default
implementation of digest B<type>.
EVP_PKEY_size() returns the maximum size of a signature in bytes. The actual
signature returned by EVP_SignFinal() may be smaller.
EVP_PKEY_security_bits() returns the number of security bits of the given B<pkey>,
bits of security is defined in NIST SP800-57.
EVP_SignInit() initializes a signing context I<ctx> to use the default
implementation of digest I<type>.
=head1 RETURN VALUES
EVP_SignInit_ex(), EVP_SignUpdate() and EVP_SignFinal() return 1
for success and 0 for failure.
EVP_PKEY_size() returns the maximum size of a signature in bytes.
The error codes can be obtained by L<ERR_get_error(3)>.
EVP_PKEY_security_bits() returns the number of security bits.
=head1 NOTES
The B<EVP> interface to digital signatures should almost always be used in
@@ -95,11 +80,12 @@ The previous two bugs are fixed in the newer EVP_SignDigest*() function.
=head1 SEE ALSO
L<EVP_PKEY_size(3)>, L<EVP_PKEY_bits(3)>, L<EVP_PKEY_security_bits(3)>,
L<EVP_VerifyInit(3)>,
L<EVP_DigestInit(3)>,
L<evp(7)>, L<HMAC(3)>, L<MD2(3)>,
L<MD5(3)>, L<MDC2(3)>, L<RIPEMD160(3)>,
L<SHA1(3)>, L<dgst(1)>
L<SHA1(3)>, L<openssl-dgst(1)>
=head1 COPYRIGHT