mirror of https://github.com/openssl/openssl.git
101 lines
3.8 KiB
Plaintext
101 lines
3.8 KiB
Plaintext
=pod
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=head1 NAME
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SRP_Calc_server_key,
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SRP_Calc_A,
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SRP_Calc_B_ex,
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SRP_Calc_B,
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SRP_Calc_u_ex,
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SRP_Calc_u,
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SRP_Calc_x_ex,
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SRP_Calc_x,
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SRP_Calc_client_key_ex,
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SRP_Calc_client_key
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- SRP authentication primitives
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=head1 SYNOPSIS
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#include <openssl/srp.h>
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The following functions have been deprecated since OpenSSL 3.0, and can be
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hidden entirely by defining B<OPENSSL_API_COMPAT> with a suitable version value,
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see L<openssl_user_macros(7)>:
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/* server side .... */
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BIGNUM *SRP_Calc_server_key(const BIGNUM *A, const BIGNUM *v, const BIGNUM *u,
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const BIGNUM *b, const BIGNUM *N);
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BIGNUM *SRP_Calc_B_ex(const BIGNUM *b, const BIGNUM *N, const BIGNUM *g,
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const BIGNUM *v, OSSL_LIB_CTX *libctx, const char *propq);
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BIGNUM *SRP_Calc_B(const BIGNUM *b, const BIGNUM *N, const BIGNUM *g,
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const BIGNUM *v);
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BIGNUM *SRP_Calc_u_ex(const BIGNUM *A, const BIGNUM *B, const BIGNUM *N,
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OSSL_LIB_CTX *libctx, const char *propq);
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BIGNUM *SRP_Calc_u(const BIGNUM *A, const BIGNUM *B, const BIGNUM *N);
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/* client side .... */
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BIGNUM *SRP_Calc_client_key_ex(const BIGNUM *N, const BIGNUM *B, const BIGNUM *g,
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const BIGNUM *x, const BIGNUM *a, const BIGNUM *u,
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OSSL_LIB_CTX *libctx, const char *propq);
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BIGNUM *SRP_Calc_client_key(const BIGNUM *N, const BIGNUM *B, const BIGNUM *g,
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const BIGNUM *x, const BIGNUM *a, const BIGNUM *u);
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BIGNUM *SRP_Calc_x_ex(const BIGNUM *s, const char *user, const char *pass,
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OSSL_LIB_CTX *libctx, const char *propq);
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BIGNUM *SRP_Calc_x(const BIGNUM *s, const char *user, const char *pass);
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BIGNUM *SRP_Calc_A(const BIGNUM *a, const BIGNUM *N, const BIGNUM *g);
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=head1 DESCRIPTION
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All of the functions described on this page are deprecated. There are no
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available replacement functions at this time.
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The SRP functions described on this page are used to calculate various
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parameters and keys used by SRP as defined in RFC2945. The server key and I<B>
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and I<u> parameters are used on the server side and are calculated via
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SRP_Calc_server_key(), SRP_Calc_B_ex(), SRP_Calc_B(), SRP_Calc_u_ex() and
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SRP_Calc_u(). The client key and B<x> and B<A> parameters are used on the
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client side and are calculated via the functions SRP_Calc_client_key_ex(),
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SRP_Calc_client_key(), SRP_Calc_x_ex(), SRP_Calc_x() and SRP_Calc_A(). See
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RFC2945 for a detailed description of their usage and the meaning of the various
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BIGNUM parameters to these functions.
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Most of these functions come in two forms. Those that take a I<libctx> and
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I<propq> parameter, and those that don't. Any cryptogrpahic functions that
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are fetched and used during the calculation use the provided I<libctx> and
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I<propq>. See L<crypto(7)/ALGORITHM FETCHING> for more details. The variants
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that do not take a I<libctx> and I<propq> parameter use the default library
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context and property query string. The SRP_Calc_server_key() and SRP_Calc_A()
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functions do not have a form that takes I<libctx> or I<propq> parameters because
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they do not need to fetch any cryptographic algorithms.
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=head1 RETURN VALUES
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All these functions return the calculated key or parameter, or NULL on error.
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=head1 SEE ALSO
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L<openssl-srp(1)>,
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L<SRP_VBASE_new(3)>,
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L<SRP_user_pwd_new(3)>
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=head1 HISTORY
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SRP_Calc_B_ex, SRP_Calc_u_ex, SRP_Calc_client_key_ex and SRP_Calc_x_ex were
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introduced in OpenSSL 3.0.
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All of the other functions were added in OpenSSL 1.0.1.
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All of these functions were deprecated in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (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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