DSA_dup_DH(3) - NetBSD Manual Pages

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DSA_dup_DH(3)                OpenSSL                DSA_dup_DH(3)



NAME

       DSA_dup_DH - create a DH structure out of DSA structure


LIBRARY

       libcrypto, -lcrypto


SYNOPSIS

        #include <openssl/dsa.h>

        DH * DSA_dup_DH(DSA *r);



DESCRIPTION

       DSA_dup_DH() duplicates DSA parameters/keys as DH parame-
       ters/keys. q is lost during that conversion, but the
       resulting DH parameters contain its length.


RETURN VALUE

       DSA_dup_DH() returns the new DH structure, and NULL on
       error. The error codes can be obtained by
       ERR_get_error(3).


NOTE

       Be careful to avoid small subgroup attacks when using
       this.


SEE ALSO

       openssl_dh(3), openssl_dsa(3), openssl_err(3)


HISTORY

       DSA_dup_DH() was added in OpenSSL 0.9.4.


























2000-07-22                    0.9.6g                            1