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Diffstat (limited to 'secure/lib/libcrypto/man/dsa.3')
| -rw-r--r-- | secure/lib/libcrypto/man/dsa.3 | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/secure/lib/libcrypto/man/dsa.3 b/secure/lib/libcrypto/man/dsa.3 new file mode 100644 index 0000000..dfdbf9d --- /dev/null +++ b/secure/lib/libcrypto/man/dsa.3 @@ -0,0 +1,249 @@ +.\" Automatically generated by Pod::Man 2.28 (Pod::Simple 3.30) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. 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Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +dsa \- Digital Signature Algorithm +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +.Vb 2 +\& #include <openssl/dsa.h> +\& #include <openssl/engine.h> +\& +\& DSA * DSA_new(void); +\& void DSA_free(DSA *dsa); +\& +\& int DSA_size(const DSA *dsa); +\& +\& DSA * DSA_generate_parameters(int bits, unsigned char *seed, +\& int seed_len, int *counter_ret, unsigned long *h_ret, +\& void (*callback)(int, int, void *), void *cb_arg); +\& +\& DH * DSA_dup_DH(const DSA *r); +\& +\& int DSA_generate_key(DSA *dsa); +\& +\& int DSA_sign(int dummy, const unsigned char *dgst, int len, +\& unsigned char *sigret, unsigned int *siglen, DSA *dsa); +\& int DSA_sign_setup(DSA *dsa, BN_CTX *ctx, BIGNUM **kinvp, +\& BIGNUM **rp); +\& int DSA_verify(int dummy, const unsigned char *dgst, int len, +\& const unsigned char *sigbuf, int siglen, DSA *dsa); +\& +\& void DSA_set_default_method(const DSA_METHOD *meth); +\& const DSA_METHOD *DSA_get_default_method(void); +\& int DSA_set_method(DSA *dsa, const DSA_METHOD *meth); +\& DSA *DSA_new_method(ENGINE *engine); +\& const DSA_METHOD *DSA_OpenSSL(void); +\& +\& int DSA_get_ex_new_index(long argl, char *argp, int (*new_func)(), +\& int (*dup_func)(), void (*free_func)()); +\& int DSA_set_ex_data(DSA *d, int idx, char *arg); +\& char *DSA_get_ex_data(DSA *d, int idx); +\& +\& DSA_SIG *DSA_SIG_new(void); +\& void DSA_SIG_free(DSA_SIG *a); +\& int i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp); +\& DSA_SIG *d2i_DSA_SIG(DSA_SIG **v, unsigned char **pp, long length); +\& +\& DSA_SIG *DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa); +\& int DSA_do_verify(const unsigned char *dgst, int dgst_len, +\& DSA_SIG *sig, DSA *dsa); +\& +\& DSA * d2i_DSAPublicKey(DSA **a, unsigned char **pp, long length); +\& DSA * d2i_DSAPrivateKey(DSA **a, unsigned char **pp, long length); +\& DSA * d2i_DSAparams(DSA **a, unsigned char **pp, long length); +\& int i2d_DSAPublicKey(const DSA *a, unsigned char **pp); +\& int i2d_DSAPrivateKey(const DSA *a, unsigned char **pp); +\& int i2d_DSAparams(const DSA *a,unsigned char **pp); +\& +\& int DSAparams_print(BIO *bp, const DSA *x); +\& int DSAparams_print_fp(FILE *fp, const DSA *x); +\& int DSA_print(BIO *bp, const DSA *x, int off); +\& int DSA_print_fp(FILE *bp, const DSA *x, int off); +.Ve +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +These functions implement the Digital Signature Algorithm (\s-1DSA\s0). The +generation of shared \s-1DSA\s0 parameters is described in +\&\fIDSA_generate_parameters\fR\|(3); +\&\fIDSA_generate_key\fR\|(3) describes how to +generate a signature key. Signature generation and verification are +described in \fIDSA_sign\fR\|(3). +.PP +The \fB\s-1DSA\s0\fR structure consists of several \s-1BIGNUM\s0 components. +.PP +.Vb 10 +\& struct +\& { +\& BIGNUM *p; // prime number (public) +\& BIGNUM *q; // 160\-bit subprime, q | p\-1 (public) +\& BIGNUM *g; // generator of subgroup (public) +\& BIGNUM *priv_key; // private key x +\& BIGNUM *pub_key; // public key y = g^x +\& // ... +\& } +\& DSA; +.Ve +.PP +In public keys, \fBpriv_key\fR is \s-1NULL.\s0 +.PP +Note that \s-1DSA\s0 keys may use non-standard \fB\s-1DSA_METHOD\s0\fR implementations, +either directly or by the use of \fB\s-1ENGINE\s0\fR modules. In some cases (eg. an +\&\s-1ENGINE\s0 providing support for hardware-embedded keys), these \s-1BIGNUM\s0 values +will not be used by the implementation or may be used for alternative data +storage. For this reason, applications should generally avoid using \s-1DSA\s0 +structure elements directly and instead use \s-1API\s0 functions to query or +modify keys. +.SH "CONFORMING TO" +.IX Header "CONFORMING TO" +\&\s-1US\s0 Federal Information Processing Standard \s-1FIPS 186 \s0(Digital Signature +Standard, \s-1DSS\s0), \s-1ANSI X9.30\s0 +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIbn\fR\|(3), \fIdh\fR\|(3), \fIerr\fR\|(3), \fIrand\fR\|(3), +\&\fIrsa\fR\|(3), \fIsha\fR\|(3), \fIengine\fR\|(3), +\&\fIDSA_new\fR\|(3), +\&\fIDSA_size\fR\|(3), +\&\fIDSA_generate_parameters\fR\|(3), +\&\fIDSA_dup_DH\fR\|(3), +\&\fIDSA_generate_key\fR\|(3), +\&\fIDSA_sign\fR\|(3), \fIDSA_set_method\fR\|(3), +\&\fIDSA_get_ex_new_index\fR\|(3), +\&\fIRSA_print\fR\|(3) |
