Ubuntu Feisty 7.04 manual page repository

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Provided by: libssl-dev_0.9.8c-4build1_i386



        d2i_DSAPublicKey, i2d_DSAPublicKey, d2i_DSAPrivateKey, i2d_DSAPri‐
        vateKey, d2i_DSA_PUBKEY, i2d_DSA_PUBKEY, d2i_DSA_SIG, i2d_DSA_SIG - DSA
        key encoding and parsing functions.


         #include <openssl/dsa.h>
         #include <openssl/x509.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);


        d2i_DSAPublicKey() and i2d_DSAPublicKey() decode and encode the DSA
        public key components structure.
        d2i_DSA_PUBKEY() and i2d_DSA_PUBKEY() decode and encode an DSA public
        key using a SubjectPublicKeyInfo (certificate public key) structure.
        d2i_DSAPrivateKey(), i2d_DSAPrivateKey() decode and encode the DSA pri‐
        vate 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
d2i_X509(3) manual page.


        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 unencrypted and there‐
        fore offers no private key security.
        The DSA_PUBKEY functions should be used in preference to the DSAPub     
        licKey functions when encoding public keys because they use a standard
        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 respectively 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 respectively.




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