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53934822ac
Files like dh.pod, etc., mostly duplicated the API-specific pod files. Removed the duplicated content; that often mean the whole file could be removed. Some of the content about internals got moved into README files in the source tree. Some content (e.g., err.pod) got moved into other pod pages. Annotate generic pages, remove dup NAME Reviewed-by: Richard Levitte <levitte@openssl.org>
45 lines
1.2 KiB
Plaintext
45 lines
1.2 KiB
Plaintext
=pod
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=head1 NAME
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RSA_blinding_on, RSA_blinding_off - protect the RSA operation from timing attacks
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=head1 SYNOPSIS
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#include <openssl/rsa.h>
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int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
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void RSA_blinding_off(RSA *rsa);
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=head1 DESCRIPTION
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RSA is vulnerable to timing attacks. In a setup where attackers can
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measure the time of RSA decryption or signature operations, blinding
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must be used to protect the RSA operation from that attack.
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RSA_blinding_on() turns blinding on for key B<rsa> and generates a
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random blinding factor. B<ctx> is B<NULL> or a pre-allocated and
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initialized B<BN_CTX>. The random number generator must be seeded
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prior to calling RSA_blinding_on().
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RSA_blinding_off() turns blinding off and frees the memory used for
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the blinding factor.
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=head1 RETURN VALUES
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RSA_blinding_on() returns 1 on success, and 0 if an error occurred.
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RSA_blinding_off() returns no value.
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=head1 COPYRIGHT
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Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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