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Title "BN_BLINDING_new 3"
way too many mistakes in technical documents.
.nh
\fBBN_BLINDING_free() frees the \s-1BN_BLINDING\s0 structure. If b is \s-1NULL,\s0 nothing is done.
\fBBN_BLINDING_update() updates the \s-1BN_BLINDING\s0 parameters by squaring the A and Ai or, after specific number of uses and if the necessary parameters are set, by re-creating the blinding parameters.
\fBBN_BLINDING_convert_ex() multiplies n with the blinding factor A. If r is not \s-1NULL\s0 a copy the inverse blinding factor Ai will be returned in r (this is useful if a \s-1RSA\s0 object is shared among several threads). BN_BLINDING_invert_ex() multiplies n with the inverse blinding factor Ai. If r is not \s-1NULL\s0 it will be used as the inverse blinding.
\fBBN_BLINDING_convert() and BN_BLINDING_invert() are wrapper functions for BN_BLINDING_convert_ex() and BN_BLINDING_invert_ex() with r set to \s-1NULL.\s0
\fBBN_BLINDING_is_current_thread() returns whether the \s-1BN_BLINDING\s0 structure is owned by the current thread. This is to help users provide proper locking if needed for multi-threaded use.
\fBBN_BLINDING_set_current_thread() sets the current thread as the owner of the \s-1BN_BLINDING\s0 structure.
\fBBN_BLINDING_lock() locks the \s-1BN_BLINDING\s0 structure.
\fBBN_BLINDING_unlock() unlocks the \s-1BN_BLINDING\s0 structure.
\fBBN_BLINDING_get_flags() returns the \s-1BN_BLINDING\s0 flags. Currently there are two supported flags: \s-1BN_BLINDING_NO_UPDATE\s0 and \fB\s-1BN_BLINDING_NO_RECREATE\s0. \s-1BN_BLINDING_NO_UPDATE\s0 inhibits the automatic update of the \s-1BN_BLINDING\s0 parameters after each use and \s-1BN_BLINDING_NO_RECREATE\s0 inhibits the automatic re-creation of the \s-1BN_BLINDING\s0 parameters after a fixed number of uses (currently 32). In newly allocated \s-1BN_BLINDING\s0 objects no flags are set. \fBBN_BLINDING_set_flags() sets the \s-1BN_BLINDING\s0 parameters flags.
\fBBN_BLINDING_create_param() creates new \s-1BN_BLINDING\s0 parameters using the exponent e and the modulus m. bn_mod_exp and \fBm_ctx can be used to pass special functions for exponentiation (normally BN_mod_exp_mont() and \s-1BN_MONT_CTX\s0).
\fBBN_BLINDING_update(), BN_BLINDING_convert(), BN_BLINDING_invert(), \fBBN_BLINDING_convert_ex() and BN_BLINDING_invert_ex() return 1 on success and 0 if an error occurred.
\fBBN_BLINDING_is_current_thread() returns 1 if the current thread owns the \s-1BN_BLINDING\s0 object, 0 otherwise.
\fBBN_BLINDING_set_current_thread() doesn't return anything.
\fBBN_BLINDING_lock(), BN_BLINDING_unlock() return 1 if the operation succeeded or 0 on error.
\fBBN_BLINDING_get_flags() returns the currently set \s-1BN_BLINDING\s0 flags (a unsigned long value).
\fBBN_BLINDING_create_param() returns the newly created \s-1BN_BLINDING\s0 parameters or \s-1NULL\s0 on error.
Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.
Indexes created Sat Apr 25 00:22:52 UTC 2026