1 .\" $OpenBSD: SSL_CTX_set_tmp_rsa_callback.3,v 1.7 2018/03/24 00:55:37 schwarze Exp $
2 .\" OpenSSL 0b30fc90 Dec 19 15:23:05 2013 -0500
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51 .Dd $Mdocdate: March 24 2018 $
52 .Dt SSL_CTX_SET_TMP_RSA_CALLBACK 3
55 .Nm SSL_CTX_set_tmp_rsa_callback ,
56 .Nm SSL_CTX_set_tmp_rsa ,
57 .Nm SSL_CTX_need_tmp_RSA ,
58 .Nm SSL_set_tmp_rsa_callback ,
61 .Nd handle RSA keys for ephemeral key exchange
65 .Fo SSL_CTX_set_tmp_rsa_callback
67 .Fa "RSA *(*tmp_rsa_callback)(SSL *ssl, int is_export, int keylength)"
70 .Fn SSL_CTX_set_tmp_rsa "SSL_CTX *ctx" "RSA *rsa"
72 .Fn SSL_CTX_need_tmp_RSA "SSL_CTX *ctx"
74 .Fo SSL_set_tmp_rsa_callback
76 .Fa "RSA *(*tmp_rsa_callback)(SSL *ssl, int is_export, int keylength)"
79 .Fn SSL_set_tmp_rsa "SSL *ssl" "RSA *rsa"
81 .Fn SSL_need_tmp_RSA "SSL *ssl"
83 Since they mattered only for deliberately insecure RSA authentication
84 mandated by historical U.S. export restrictions, these functions
85 are all deprecated and have no effect except that
86 .Fn SSL_CTX_set_tmp_rsa_callback ,
87 .Fn SSL_CTX_set_tmp_rsa ,
88 .Fn SSL_set_tmp_rsa_callback ,
91 issue error messages when called.
93 These functions always return 0, indicating failure.
96 .Xr SSL_CTX_set_cipher_list 3 ,
97 .Xr SSL_CTX_set_options 3 ,
98 .Xr SSL_CTX_set_tmp_dh_callback 3 ,
100 .Xr SSL_set_tmp_ecdh 3
102 .Fn SSL_CTX_set_tmp_rsa_callback ,
103 .Fn SSL_CTX_set_tmp_rsa ,
105 .Fn SSL_CTX_need_tmp_RSA
106 appeared before SSLeay 0.8 and have been available since
109 .Fn SSL_set_tmp_rsa_callback
110 .Fn SSL_set_tmp_rsa ,
113 first appeared in OpenSSL 0.9.2b and have been available since