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author | cvs2svn <admin@example.com> | 2025-04-14 17:32:06 +0000 |
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committer | cvs2svn <admin@example.com> | 2025-04-14 17:32:06 +0000 |
commit | eb8dd9dca1228af0cd132f515509051ecfabf6f6 (patch) | |
tree | edb6da6af7e865d488dc1a29309f1e1ec226e603 /src/lib/libcrypto/man/DH_new.3 | |
parent | 247f0352e0ed72a4f476db9dc91f4d982bc83eb2 (diff) | |
download | openbsd-tb_20250414.tar.gz openbsd-tb_20250414.tar.bz2 openbsd-tb_20250414.zip |
This commit was manufactured by cvs2git to create tag 'tb_20250414'.tb_20250414
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diff --git a/src/lib/libcrypto/man/DH_new.3 b/src/lib/libcrypto/man/DH_new.3 deleted file mode 100644 index 4993456897..0000000000 --- a/src/lib/libcrypto/man/DH_new.3 +++ /dev/null | |||
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1 | .\" $OpenBSD: DH_new.3,v 1.12 2022/07/13 21:51:35 schwarze Exp $ | ||
2 | .\" OpenSSL b97fdb57 Nov 11 09:33:09 2016 +0100 | ||
3 | .\" | ||
4 | .\" This file was written by Ulf Moeller <ulf@openssl.org>. | ||
5 | .\" Copyright (c) 2000 The OpenSSL Project. All rights reserved. | ||
6 | .\" | ||
7 | .\" Redistribution and use in source and binary forms, with or without | ||
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9 | .\" are met: | ||
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11 | .\" 1. Redistributions of source code must retain the above copyright | ||
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51 | .Dd $Mdocdate: July 13 2022 $ | ||
52 | .Dt DH_NEW 3 | ||
53 | .Os | ||
54 | .Sh NAME | ||
55 | .Nm DH_new , | ||
56 | .Nm DH_up_ref , | ||
57 | .Nm DH_free | ||
58 | .Nd allocate and free DH objects | ||
59 | .Sh SYNOPSIS | ||
60 | .In openssl/dh.h | ||
61 | .Ft DH* | ||
62 | .Fn DH_new void | ||
63 | .Ft int | ||
64 | .Fo DH_up_ref | ||
65 | .Fa "DH *dh" | ||
66 | .Fc | ||
67 | .Ft void | ||
68 | .Fo DH_free | ||
69 | .Fa "DH *dh" | ||
70 | .Fc | ||
71 | .Sh DESCRIPTION | ||
72 | The DH functions implement the Diffie-Hellman key agreement protocol. | ||
73 | .Pp | ||
74 | .Fn DH_new | ||
75 | allocates and initializes a | ||
76 | .Vt DH | ||
77 | structure, setting the reference count to 1. | ||
78 | It is equivalent to | ||
79 | .Xr DH_new_method 3 | ||
80 | with a | ||
81 | .Dv NULL | ||
82 | argument. | ||
83 | .Pp | ||
84 | .Fn DH_up_ref | ||
85 | increments the reference count by 1. | ||
86 | .Pp | ||
87 | .Fn DH_free | ||
88 | decrements the reference count by 1. | ||
89 | If it reaches 0, it frees the | ||
90 | .Vt DH | ||
91 | structure and its components. | ||
92 | The values are erased before the memory is returned to the system. | ||
93 | If | ||
94 | .Fa dh | ||
95 | is a | ||
96 | .Dv NULL | ||
97 | pointer, no action occurs. | ||
98 | .Sh RETURN VALUES | ||
99 | If the allocation fails, | ||
100 | .Fn DH_new | ||
101 | returns | ||
102 | .Dv NULL | ||
103 | and sets an error code that can be obtained by | ||
104 | .Xr ERR_get_error 3 . | ||
105 | Otherwise it returns a pointer to the newly allocated structure. | ||
106 | .Pp | ||
107 | .Fn DH_up_ref | ||
108 | returns 1 for success or 0 for failure. | ||
109 | .Sh SEE ALSO | ||
110 | .Xr BN_new 3 , | ||
111 | .Xr crypto 3 , | ||
112 | .Xr d2i_DHparams 3 , | ||
113 | .Xr DH_generate_key 3 , | ||
114 | .Xr DH_generate_parameters 3 , | ||
115 | .Xr DH_get0_pqg 3 , | ||
116 | .Xr DH_get_ex_new_index 3 , | ||
117 | .Xr DH_security_bits 3 , | ||
118 | .Xr DH_set_method 3 , | ||
119 | .Xr DH_size 3 , | ||
120 | .Xr DHparams_print 3 , | ||
121 | .Xr DSA_dup_DH 3 , | ||
122 | .Xr EVP_PKEY_CTX_set_dh_paramgen_prime_len 3 , | ||
123 | .Xr EVP_PKEY_set1_DH 3 | ||
124 | .Sh HISTORY | ||
125 | .Fn DH_new | ||
126 | and | ||
127 | .Fn DH_free | ||
128 | first appeared in SSLeay 0.5.1 and have been available since | ||
129 | .Ox 2.4 . | ||
130 | .Pp | ||
131 | .Fn DH_up_ref | ||
132 | first appeared in OpenSSL 0.9.7 and has been available since | ||
133 | .Ox 3.2 . | ||