d2i_DSAPublicKey(3)         OpenSSL         d2i_DSAPublicKey(3)





NAME
       d2i_DSAPublicKey, i2d_DSAPublicKey, d2i_DSAPrivateKey,
       i2d_DSAPrivateKey, d2i_DSA_PUBKEY, i2d_DSA_PUBKEY,
       d2i_DSA_SIG, i2d_DSA_SIG - DSA key encoding and parsing
       functions.

SYNOPSIS
        #include <openssl/dsa.h>

        DSA * d2i_DSAPublicKey(DSA **a, const unsigned char **pp, long length);

        int i2d_DSAPublicKey(const DSA *a, unsigned char **pp);

        DSA * d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp, long length);

        int i2d_DSA_PUBKEY(const DSA *a, unsigned char **pp);

        DSA * d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length);

        int i2d_DSAPrivateKey(const DSA *a, unsigned char **pp);

        DSA * d2i_DSAparams(DSA **a, const unsigned char **pp, long length);

        int i2d_DSAparams(const DSA *a, unsigned char **pp);

        DSA * d2i_DSA_SIG(DSA_SIG **a, const unsigned char **pp, long length);

        int i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp);

DESCRIPTION
       d2i_DSAPublicKey() and i2d_DSAPublicKey() decode and
       encode the DSA public key components structure.

       d2i_DSA_PUKEY() and i2d_DSA_PUKEY() decode and encode an
       DSA public key using a SubjectPublicKeyInfo (certificate
       public key) structure.

       d2i_DSAPrivateKey(), i2d_DSAPrivateKey() decode and
       encode the DSA private key components.

       d2i_DSAparams(), i2d_DSAparams() decode and encode the
       DSA parameters using a Dss-Parms structure as defined in
       RFC2459.

       d2i_DSA_SIG(), i2d_DSA_SIG() decode and encode a DSA
       signature using a Dss-Sig-Value structure as defined in
       RFC2459.

       The usage of all of these functions is similar to the
       d2i_X509() and i2d_X509() described in the d2i_X509(3)
       manual page.

NOTES
       The DSA structure passed to the private key encoding
       functions should have all the private key components
       present.

       The data encoded by the private key functions is unen-
       crypted and therefore offers no private key security.

       The DSA_PUBKEY functions should be used in preference to
       the DSAPublicKey functions when encoding public keys
       because they use a standard format.

       The DSAPublicKey functions use an non standard format
       the actual data encoded depends on the value of the
       write_params field of the a key parameter.  If
       write_params is zero then only the pub_key field is
       encoded as an INTEGER. If write_params is 1 then a
       SEQUENCE consisting of the p, q, g and pub_key respec-
       tively fields are encoded.

       The DSAPrivateKey functions also use a non standard
       structure consiting consisting of a SEQUENCE containing
       the p, q, g and pub_key and priv_key fields respec-
       tively.

SEE ALSO
       d2i_X509(3)

HISTORY
       TBA



0.9.7c                     2002-10-09       d2i_DSAPublicKey(3)
