Add prebuild OpenSSL, and remove SCHANNEL code and whatever it was on MacOS. Build mingw for 64-bit.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4088 ed5197a5-7fde-0310-b194-c3ffbd925b24

deps/openssl/mingw64/share/man/man3/DSA_generate_parameters.3

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+.\" ========================================================================
+.\"
+.IX Title "DSA_GENERATE_PARAMETERS 3"
+.TH DSA_GENERATE_PARAMETERS 3 "2020-04-21" "1.1.1g" "OpenSSL"
+.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH "NAME"
+DSA_generate_parameters_ex, DSA_generate_parameters \- generate DSA parameters
+.SH "SYNOPSIS"
+.IX Header "SYNOPSIS"
+.Vb 1
+\& #include <openssl/dsa.h>
+\&
+\& int DSA_generate_parameters_ex(DSA *dsa, int bits,
+\&                                const unsigned char *seed, int seed_len,
+\&                                int *counter_ret, unsigned long *h_ret,
+\&                                BN_GENCB *cb);
+.Ve
+.PP
+Deprecated:
+.PP
+.Vb 5
+\& #if OPENSSL_API_COMPAT < 0x00908000L
+\& DSA *DSA_generate_parameters(int bits, unsigned char *seed, int seed_len,
+\&                              int *counter_ret, unsigned long *h_ret,
+\&                              void (*callback)(int, int, void *), void *cb_arg);
+\& #endif
+.Ve
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+\&\fBDSA_generate_parameters_ex()\fR generates primes p and q and a generator g
+for use in the \s-1DSA\s0 and stores the result in \fBdsa\fR.
+.PP
+\&\fBbits\fR is the length of the prime p to be generated.
+For lengths under 2048 bits, the length of q is 160 bits; for lengths
+greater than or equal to 2048 bits, the length of q is set to 256 bits.
+.PP
+If \fBseed\fR is \s-1NULL,\s0 the primes will be generated at random.
+If \fBseed_len\fR is less than the length of q, an error is returned.
+.PP
+\&\fBDSA_generate_parameters_ex()\fR places the iteration count in
+*\fBcounter_ret\fR and a counter used for finding a generator in
+*\fBh_ret\fR, unless these are \fB\s-1NULL\s0\fR.
+.PP
+A callback function may be used to provide feedback about the progress
+of the key generation. If \fBcb\fR is not \fB\s-1NULL\s0\fR, it will be
+called as shown below. For information on the \s-1BN_GENCB\s0 structure and the
+BN_GENCB_call function discussed below, refer to
+\&\fBBN_generate_prime\fR\|(3).
+.PP
+\&\fBDSA_generate_prime()\fR is similar to \fBDSA_generate_prime_ex()\fR but
+expects an old-style callback function; see
+\&\fBBN_generate_prime\fR\|(3) for information on the old-style callback.
+.IP "\(bu" 2
+When a candidate for q is generated, \fBBN_GENCB_call(cb, 0, m++)\fR is called
+(m is 0 for the first candidate).
+.IP "\(bu" 2
+When a candidate for q has passed a test by trial division,
+\&\fBBN_GENCB_call(cb, 1, \-1)\fR is called.
+While a candidate for q is tested by Miller-Rabin primality tests,
+\&\fBBN_GENCB_call(cb, 1, i)\fR is called in the outer loop
+(once for each witness that confirms that the candidate may be prime);
+i is the loop counter (starting at 0).
+.IP "\(bu" 2
+When a prime q has been found, \fBBN_GENCB_call(cb, 2, 0)\fR and
+\&\fBBN_GENCB_call(cb, 3, 0)\fR are called.
+.IP "\(bu" 2
+Before a candidate for p (other than the first) is generated and tested,
+\&\fBBN_GENCB_call(cb, 0, counter)\fR is called.
+.IP "\(bu" 2
+When a candidate for p has passed the test by trial division,
+\&\fBBN_GENCB_call(cb, 1, \-1)\fR is called.
+While it is tested by the Miller-Rabin primality test,
+\&\fBBN_GENCB_call(cb, 1, i)\fR is called in the outer loop
+(once for each witness that confirms that the candidate may be prime).
+i is the loop counter (starting at 0).
+.IP "\(bu" 2
+When p has been found, \fBBN_GENCB_call(cb, 2, 1)\fR is called.
+.IP "\(bu" 2
+When the generator has been found, \fBBN_GENCB_call(cb, 3, 1)\fR is called.
+.SH "RETURN VALUES"
+.IX Header "RETURN VALUES"
+\&\fBDSA_generate_parameters_ex()\fR returns a 1 on success, or 0 otherwise.
+The error codes can be obtained by \fBERR_get_error\fR\|(3).
+.PP
+\&\fBDSA_generate_parameters()\fR returns a pointer to the \s-1DSA\s0 structure or
+\&\fB\s-1NULL\s0\fR if the parameter generation fails.
+.SH "BUGS"
+.IX Header "BUGS"
+Seed lengths greater than 20 are not supported.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+\&\fBDSA_new\fR\|(3), \fBERR_get_error\fR\|(3), \fBRAND_bytes\fR\|(3),
+\&\fBDSA_free\fR\|(3), \fBBN_generate_prime\fR\|(3)
+.SH "HISTORY"
+.IX Header "HISTORY"
+\&\fBDSA_generate_parameters()\fR was deprecated in OpenSSL 0.9.8; use
+\&\fBDSA_generate_parameters_ex()\fR instead.
+.SH "COPYRIGHT"
+.IX Header "COPYRIGHT"
+Copyright 2000\-2018 The OpenSSL Project Authors. All Rights Reserved.
+.PP
+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>.