=head1 NAME
-BN_BLINDING_new, BN_BLINDING_free, BN_BLINDING_update, BN_BLINDING_convert,
-BN_BLINDING_invert, BN_BLINDING_convert_ex, BN_BLINDING_invert_ex,
-BN_BLINDING_get_thread_id, BN_BLINDING_set_thread_id, BN_BLINDING_get_flags,
-BN_BLINDING_set_flags, BN_BLINDING_create_param - blinding related BIGNUM
-functions.
+BN_BLINDING_new, BN_BLINDING_free, BN_BLINDING_update, BN_BLINDING_convert,
+BN_BLINDING_invert, BN_BLINDING_convert_ex, BN_BLINDING_invert_ex,
+BN_BLINDING_is_current_thread, BN_BLINDING_set_current_thread,
+BN_BLINDING_lock, BN_BLINDING_unlock, BN_BLINDING_get_flags,
+BN_BLINDING_set_flags, BN_BLINDING_create_param - blinding related BIGNUM functions
=head1 SYNOPSIS
#include <openssl/bn.h>
BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai,
- BIGNUM *mod);
+ BIGNUM *mod);
void BN_BLINDING_free(BN_BLINDING *b);
- int BN_BLINDING_update(BN_BLINDING *b,BN_CTX *ctx);
+ int BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx);
int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx);
int BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx);
int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b,
- BN_CTX *ctx);
+ BN_CTX *ctx);
int BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b,
- BN_CTX *ctx);
- #ifndef OPENSSL_NO_DEPRECATED
- unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *);
- void BN_BLINDING_set_thread_id(BN_BLINDING *, unsigned long);
- #endif
- CRYPTO_THREADID *BN_BLINDING_thread_id(BN_BLINDING *);
+ BN_CTX *ctx);
+ int BN_BLINDING_is_current_thread(BN_BLINDING *b);
+ void BN_BLINDING_set_current_thread(BN_BLINDING *b);
+ int BN_BLINDING_lock(BN_BLINDING *b);
+ int BN_BLINDING_unlock(BN_BLINDING *b);
unsigned long BN_BLINDING_get_flags(const BN_BLINDING *);
void BN_BLINDING_set_flags(BN_BLINDING *, unsigned long);
BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b,
- const BIGNUM *e, BIGNUM *m, BN_CTX *ctx,
- int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx),
- BN_MONT_CTX *m_ctx);
+ const BIGNUM *e, BIGNUM *m, BN_CTX *ctx,
+ int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx),
+ BN_MONT_CTX *m_ctx);
=head1 DESCRIPTION
the B<A> and B<Ai> values into the newly created B<BN_BLINDING> object.
BN_BLINDING_free() frees the B<BN_BLINDING> structure.
+If B<b> is NULL, nothing is done.
BN_BLINDING_update() updates the B<BN_BLINDING> parameters by squaring
the B<A> and B<Ai> or, after specific number of uses and if the
functions for BN_BLINDING_convert_ex() and BN_BLINDING_invert_ex()
with B<r> set to NULL.
-BN_BLINDING_thread_id() provides access to the B<CRYPTO_THREADID>
-object within the B<BN_BLINDING> structure. This is to help users
-provide proper locking if needed for multi-threaded use. The "thread
-id" object of a newly allocated B<BN_BLINDING> structure is
-initialised to the thread id in which BN_BLINDING_new() was called.
+BN_BLINDING_is_current_thread() returns whether the B<BN_BLINDING>
+structure is owned by the current thread. This is to help users
+provide proper locking if needed for multi-threaded use.
+
+BN_BLINDING_set_current_thread() sets the current thread as the
+owner of the B<BN_BLINDING> structure.
+
+BN_BLINDING_lock() locks the B<BN_BLINDING> structure.
+
+BN_BLINDING_unlock() unlocks the B<BN_BLINDING> structure.
BN_BLINDING_get_flags() returns the BN_BLINDING flags. Currently
there are two supported flags: B<BN_BLINDING_NO_UPDATE> and
BN_BLINDING_update(), BN_BLINDING_convert(), BN_BLINDING_invert(),
BN_BLINDING_convert_ex() and BN_BLINDING_invert_ex() return 1 on
-success and 0 if an error occured.
+success and 0 if an error occurred.
+
+BN_BLINDING_is_current_thread() returns 1 if the current thread owns
+the B<BN_BLINDING> object, 0 otherwise.
+
+BN_BLINDING_set_current_thread() doesn't return anything.
-BN_BLINDING_thread_id() returns a pointer to the thread id object
-within a B<BN_BLINDING> object.
+BN_BLINDING_lock(), BN_BLINDING_unlock() return 1 if the operation
+succeeded or 0 on error.
BN_BLINDING_get_flags() returns the currently set B<BN_BLINDING> flags
(a B<unsigned long> value).
-BN_BLINDING_create_param() returns the newly created B<BN_BLINDING>
+BN_BLINDING_create_param() returns the newly created B<BN_BLINDING>
parameters or NULL on error.
=head1 SEE ALSO
-L<bn(3)|bn(3)>
+L<bn(3)>
=head1 HISTORY
-BN_BLINDING_thread_id was first introduced in OpenSSL 1.0.0, and it
-deprecates BN_BLINDING_set_thread_id and BN_BLINDING_get_thread_id.
+BN_BLINDING_thread_id() was first introduced in OpenSSL 1.0.0, and it
+deprecates BN_BLINDING_set_thread_id() and BN_BLINDING_get_thread_id().
-BN_BLINDING_convert_ex, BN_BLINDIND_invert_ex, BN_BLINDING_get_thread_id,
-BN_BLINDING_set_thread_id, BN_BLINDING_set_flags, BN_BLINDING_get_flags
-and BN_BLINDING_create_param were first introduced in OpenSSL 0.9.8
+=head1 COPYRIGHT
-=head1 AUTHOR
+Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved.
-Nils Larsch for the OpenSSL project (http://www.openssl.org).
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
=cut