81 lines
2.4 KiB
Text
81 lines
2.4 KiB
Text
=pod
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=head1 NAME
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d2i_DSAPublicKey, i2d_DSAPublicKey, d2i_DSAPrivateKey, i2d_DSAPrivateKey,
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d2i_DSA_PUBKEY, i2d_DSA_PUBKEY, d2i_DSAparams, i2d_DSAparams, d2i_DSA_SIG, i2d_DSA_SIG - DSA key encoding
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and parsing functions.
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=head1 SYNOPSIS
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#include <openssl/dsa.h>
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#include <openssl/x509.h>
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DSA * d2i_DSAPublicKey(DSA **a, const unsigned char **pp, long length);
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int i2d_DSAPublicKey(const DSA *a, unsigned char **pp);
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DSA * d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp, long length);
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int i2d_DSA_PUBKEY(const DSA *a, unsigned char **pp);
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DSA * d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length);
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int i2d_DSAPrivateKey(const DSA *a, unsigned char **pp);
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DSA * d2i_DSAparams(DSA **a, const unsigned char **pp, long length);
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int i2d_DSAparams(const DSA *a, unsigned char **pp);
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DSA * d2i_DSA_SIG(DSA_SIG **a, const unsigned char **pp, long length);
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int i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp);
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=head1 DESCRIPTION
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d2i_DSAPublicKey() and i2d_DSAPublicKey() decode and encode the DSA public key
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components structure.
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d2i_DSA_PUBKEY() and i2d_DSA_PUBKEY() decode and encode an DSA public key using
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a SubjectPublicKeyInfo (certificate public key) structure.
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d2i_DSAPrivateKey(), i2d_DSAPrivateKey() decode and encode the DSA private key
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components.
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d2i_DSAparams(), i2d_DSAparams() decode and encode the DSA parameters using
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a B<Dss-Parms> structure as defined in RFC2459.
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d2i_DSA_SIG(), i2d_DSA_SIG() decode and encode a DSA signature using a
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B<Dss-Sig-Value> structure as defined in RFC2459.
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The usage of all of these functions is similar to the d2i_X509() and
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i2d_X509() described in the L<d2i_X509(3)> manual page.
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=head1 NOTES
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The B<DSA> structure passed to the private key encoding functions should have
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all the private key components present.
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The data encoded by the private key functions is unencrypted and therefore
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offers no private key security.
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The B<DSA_PUBKEY> functions should be used in preference to the B<DSAPublicKey>
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functions when encoding public keys because they use a standard format.
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The B<DSAPublicKey> functions use a non standard format which is a
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B<SEQUENCE> consisting of the B<p>, B<q>, B<g> and B<pub_key> fields
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respectively.
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The B<DSAPrivateKey> functions also use a non standard structure consisting
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consisting of a SEQUENCE containing the B<p>, B<q>, B<g> and B<pub_key> and
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B<priv_key> fields respectively.
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=head1 SEE ALSO
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L<d2i_X509(3)>
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=head1 HISTORY
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TBA
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=cut
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