Remove mention of link between message digests and public key algorithms.

[openssl.git] / doc / man3 / EVP_SignInit.pod

diff --git a/doc/man3/EVP_SignInit.pod b/doc/man3/EVP_SignInit.pod
index cfbfd5efd4ca13ea45b5ac20d743b4b504ac6e7e..c171b4c9f48dcd6984c3f82fa896b1d11a8f34cc 100644 (file)
--- a/doc/man3/EVP_SignInit.pod
+++ b/doc/man3/EVP_SignInit.pod
@@ -3,7 +3,8 @@
 =head1 NAME
 
 EVP_PKEY_size,
-EVP_SignInit, EVP_SignInit_ex, EVP_SignUpdate, EVP_SignFinal - EVP signing
+EVP_SignInit, EVP_SignInit_ex, EVP_SignUpdate, EVP_SignFinal,
+EVP_PKEY_security_bits - EVP signing
 functions
 
 =head1 SYNOPSIS
@@ -17,6 +18,7 @@ functions
  void EVP_SignInit(EVP_MD_CTX *ctx, const EVP_MD *type);
 
  int EVP_PKEY_size(EVP_PKEY *pkey);
+ int EVP_PKEY_security_bits(const EVP_PKEY *pkey);
 
 =head1 DESCRIPTION
 
@@ -44,6 +46,9 @@ 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.
+
 =head1 RETURN VALUES
 
 EVP_SignInit_ex(), EVP_SignUpdate() and EVP_SignFinal() return 1
@@ -53,17 +58,14 @@ 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
 preference to the low level interfaces. This is because the code then becomes
 transparent to the algorithm used and much more flexible.
 
-Due to the link between message digests and public key algorithms the correct
-digest algorithm must be used with the correct public key type. A list of
-algorithms and associated public key algorithms appears in
-L<EVP_DigestInit(3)>.
-
 When signing with DSA private keys the random number generator must be seeded
 or the operation will fail. The random number generator does not need to be
 seeded for RSA signatures.
@@ -93,14 +95,14 @@ The previous two bugs are fixed in the newer EVP_SignDigest*() function.
 =head1 SEE ALSO
 
 L<EVP_VerifyInit(3)>,
-L<EVP_DigestInit(3)>, L<err(3)>,
-L<evp(3)>, L<hmac(3)>, L<md2(3)>,
-L<md5(3)>, L<mdc2(3)>, L<ripemd(3)>,
-L<sha(3)>, L<dgst(1)>
+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)>
 
 =head1 COPYRIGHT
 
-Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
 
 Licensed under the OpenSSL license (the "License").  You may not use
 this file except in compliance with the License.  You can obtain a copy