/usr/man/cat.3/i2d_DSA_SIG.3(/usr/man/cat.3/i2d_DSA_SIG.3)

d2i_DSAPublicKey(3)          OpenSSL          d2i_DSAPublicKey(3)

NAME

     d2i_DSAPublicKey, i2d_DSAPublicKey, d2i_DSAPrivateKey,
     i2d_DSAPrivateKey, d2i_DSA_PUBKEY, i2d_DSA_PUBKEY,
     d2i_DSAparams, i2d_DSAparams, d2i_DSA_SIG, i2d_DSA_SIG - DSA
     key encoding and parsing functions.

SYNOPSIS

      #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);

DESCRIPTION

     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 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.

1.0.2t               Last change: 2019-09-10                    1

d2i_DSAPublicKey(3)          OpenSSL          d2i_DSAPublicKey(3)

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 unencrypted
     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 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.

SEE ALSO

     d2i_X509(3)

HISTORY

     TBA

1.0.2t               Last change: 2019-09-10                    2

See also d2i_DSAPrivateKey(3)
See also d2i_DSAPublicKey(3)
See also d2i_DSA_PUBKEY(3)
See also d2i_DSA_SIG(3)
See also d2i_DSAparams(3)
See also i2d_DSAPrivateKey(3)
See also i2d_DSAPublicKey(3)
See also i2d_DSA_PUBKEY(3)
See also i2d_DSAparams(3)