diff options
Diffstat (limited to 'crypto/openssl/doc/crypto/dsa.pod')
-rw-r--r-- | crypto/openssl/doc/crypto/dsa.pod | 44 |
1 files changed, 27 insertions, 17 deletions
diff --git a/crypto/openssl/doc/crypto/dsa.pod b/crypto/openssl/doc/crypto/dsa.pod index 2c09244..da07d2b 100644 --- a/crypto/openssl/doc/crypto/dsa.pod +++ b/crypto/openssl/doc/crypto/dsa.pod @@ -7,17 +7,18 @@ dsa - Digital Signature Algorithm =head1 SYNOPSIS #include <openssl/dsa.h> + #include <openssl/engine.h> DSA * DSA_new(void); void DSA_free(DSA *dsa); - int DSA_size(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(DSA *r); + DH * DSA_dup_DH(const DSA *r); int DSA_generate_key(DSA *dsa); @@ -26,13 +27,13 @@ dsa - Digital Signature Algorithm int DSA_sign_setup(DSA *dsa, BN_CTX *ctx, BIGNUM **kinvp, BIGNUM **rp); int DSA_verify(int dummy, const unsigned char *dgst, int len, - unsigned char *sigbuf, int siglen, DSA *dsa); + const unsigned char *sigbuf, int siglen, DSA *dsa); - void DSA_set_default_method(DSA_METHOD *meth); - DSA_METHOD *DSA_get_default_method(void); - DSA_METHOD *DSA_set_method(DSA *dsa, DSA_METHOD *meth); - DSA *DSA_new_method(DSA_METHOD *meth); - DSA_METHOD *DSA_OpenSSL(void); + 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)()); @@ -41,7 +42,7 @@ dsa - Digital Signature Algorithm DSA_SIG *DSA_SIG_new(void); void DSA_SIG_free(DSA_SIG *a); - int i2d_DSA_SIG(DSA_SIG *a, unsigned char **pp); + 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); @@ -51,14 +52,14 @@ dsa - Digital Signature Algorithm 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(DSA *a, unsigned char **pp); - int i2d_DSAPrivateKey(DSA *a, unsigned char **pp); - int i2d_DSAparams(DSA *a,unsigned char **pp); + 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, DSA *x); - int DSAparams_print_fp(FILE *fp, DSA *x); - int DSA_print(BIO *bp, DSA *x, int off); - int DSA_print_fp(FILE *bp, DSA *x, int off); + 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); =head1 DESCRIPTION @@ -84,6 +85,14 @@ The B<DSA> structure consists of several BIGNUM components. In public keys, B<priv_key> is NULL. +Note that DSA keys may use non-standard B<DSA_METHOD> implementations, +either directly or by the use of B<ENGINE> modules. In some cases (eg. an +ENGINE providing support for hardware-embedded keys), these BIGNUM values +will not be used by the implementation or may be used for alternative data +storage. For this reason, applications should generally avoid using DSA +structure elements directly and instead use API functions to query or +modify keys. + =head1 CONFORMING TO US Federal Information Processing Standard FIPS 186 (Digital Signature @@ -92,7 +101,8 @@ Standard, DSS), ANSI X9.30 =head1 SEE ALSO L<bn(3)|bn(3)>, L<dh(3)|dh(3)>, L<err(3)|err(3)>, L<rand(3)|rand(3)>, -L<rsa(3)|rsa(3)>, L<sha(3)|sha(3)>, L<DSA_new(3)|DSA_new(3)>, +L<rsa(3)|rsa(3)>, L<sha(3)|sha(3)>, L<engine(3)|engine(3)>, +L<DSA_new(3)|DSA_new(3)>, L<DSA_size(3)|DSA_size(3)>, L<DSA_generate_parameters(3)|DSA_generate_parameters(3)>, L<DSA_dup_DH(3)|DSA_dup_DH(3)>, |