X-Git-Url: https://git.openssl.org/?a=blobdiff_plain;f=crypto%2Fdsa%2Fdsa.h;h=6010a954f0c700d051315e6ba3426fd056e28363;hb=ff49a944392985510c15f06a342af9d991b8f11f;hp=6b5a24149ed8f232ebdd4065154da221fea50dcf;hpb=c0711f7f0fc026ab87fe6607bb5136ab790e2334;p=openssl.git diff --git a/crypto/dsa/dsa.h b/crypto/dsa/dsa.h index 6b5a24149e..6010a954f0 100644 --- a/crypto/dsa/dsa.h +++ b/crypto/dsa/dsa.h @@ -65,23 +65,69 @@ #ifndef HEADER_DSA_H #define HEADER_DSA_H -#ifdef __cplusplus -extern "C" { -#endif +#include -#ifdef NO_DSA +#ifdef OPENSSL_NO_DSA #error DSA is disabled. #endif -#include +#ifndef OPENSSL_NO_BIO +#include +#endif #include -#ifndef NO_DH +#include + +#ifndef OPENSSL_NO_DEPRECATED +#include +#ifndef OPENSSL_NO_DH # include #endif +#endif + +#ifndef OPENSSL_DSA_MAX_MODULUS_BITS +# define OPENSSL_DSA_MAX_MODULUS_BITS 10000 +#endif + +#define OPENSSL_DSA_FIPS_MIN_MODULUS_BITS 1024 #define DSA_FLAG_CACHE_MONT_P 0x01 +#define DSA_FLAG_NO_EXP_CONSTTIME 0x02 /* new with 0.9.7h; the + * built-in DSA + * implementation now + * uses constant time + * modular exponentiation + * for secret exponents + * by default. This flag + * causes the faster + * variable sliding + * window method to be + * used for all + * exponents. + */ -typedef struct dsa_st DSA; +/* If this flag is set the DSA method is FIPS compliant and can be used + * in FIPS mode. This is set in the validated module method. If an + * application sets this flag in its own methods it is its reposibility + * to ensure the result is compliant. + */ + +#define DSA_FLAG_FIPS_METHOD 0x0400 + +/* If this flag is set the operations normally disabled in FIPS mode are + * permitted it is then the applications responsibility to ensure that the + * usage is compliant. + */ + +#define DSA_FLAG_NON_FIPS_ALLOW 0x0400 +#define DSA_FLAG_FIPS_CHECKED 0x0800 + +#ifdef __cplusplus +extern "C" { +#endif + +/* Already defined in ossl_typ.h */ +/* typedef struct dsa_st DSA; */ +/* typedef struct dsa_method DSA_METHOD; */ typedef struct DSA_SIG_st { @@ -89,13 +135,14 @@ typedef struct DSA_SIG_st BIGNUM *s; } DSA_SIG; -typedef struct dsa_method { +struct dsa_method + { const char *name; DSA_SIG * (*dsa_do_sign)(const unsigned char *dgst, int dlen, DSA *dsa); int (*dsa_sign_setup)(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp); int (*dsa_do_verify)(const unsigned char *dgst, int dgst_len, - DSA_SIG *sig, DSA *dsa); + DSA_SIG *sig, DSA *dsa); int (*dsa_mod_exp)(DSA *dsa, BIGNUM *rr, BIGNUM *a1, BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont); @@ -106,14 +153,21 @@ typedef struct dsa_method { int (*finish)(DSA *dsa); int flags; char *app_data; -} DSA_METHOD; + /* If this is non-NULL, it is used to generate DSA parameters */ + int (*dsa_paramgen)(DSA *dsa, int bits, + const unsigned char *seed, int seed_len, + int *counter_ret, unsigned long *h_ret, + BN_GENCB *cb); + /* If this is non-NULL, it is used to generate DSA keys */ + int (*dsa_keygen)(DSA *dsa); + }; struct dsa_st { /* This first variable is used to pick up errors where * a DSA is passed instead of of a EVP_PKEY */ int pad; - int version; + long version; int write_params; BIGNUM *p; BIGNUM *q; /* == 20 */ @@ -127,108 +181,174 @@ struct dsa_st int flags; /* Normally used to cache montgomery values */ - char *method_mont_p; + BN_MONT_CTX *method_mont_p; int references; CRYPTO_EX_DATA ex_data; - DSA_METHOD *meth; + const DSA_METHOD *meth; + /* functional reference if 'meth' is ENGINE-provided */ + ENGINE *engine; }; -#define DSAparams_dup(x) (DSA *)ASN1_dup((int (*)())i2d_DSAparams, \ - (char *(*)())d2i_DSAparams,(char *)(x)) #define d2i_DSAparams_fp(fp,x) (DSA *)ASN1_d2i_fp((char *(*)())DSA_new, \ (char *(*)())d2i_DSAparams,(fp),(unsigned char **)(x)) #define i2d_DSAparams_fp(fp,x) ASN1_i2d_fp(i2d_DSAparams,(fp), \ (unsigned char *)(x)) -#define d2i_DSAparams_bio(bp,x) (DSA *)ASN1_d2i_bio((char *(*)())DSA_new, \ - (char *(*)())d2i_DSAparams,(bp),(unsigned char **)(x)) -#define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio(i2d_DSAparams,(bp), \ - (unsigned char *)(x)) +#define d2i_DSAparams_bio(bp,x) ASN1_d2i_bio_of(DSA,DSA_new,d2i_DSAparams,bp,x) +#define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio_of_const(DSA,i2d_DSAparams,bp,x) +DSA *DSAparams_dup(DSA *x); DSA_SIG * DSA_SIG_new(void); void DSA_SIG_free(DSA_SIG *a); -int i2d_DSA_SIG(DSA_SIG *a, unsigned char **pp); -DSA_SIG * d2i_DSA_SIG(DSA_SIG **v, unsigned char **pp, long length); +int i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp); +DSA_SIG * d2i_DSA_SIG(DSA_SIG **v, const 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_METHOD *DSA_OpenSSL(void); +const DSA_METHOD *DSA_OpenSSL(void); + +void DSA_set_default_method(const DSA_METHOD *); +const DSA_METHOD *DSA_get_default_method(void); +int DSA_set_method(DSA *dsa, const DSA_METHOD *); + +#ifdef OPENSSL_FIPS +DSA * FIPS_dsa_new(void); +void FIPS_dsa_free (DSA *r); +DSA_SIG * FIPS_dsa_sign_digest(DSA *dsa, const unsigned char *dig, int dlen); +DSA_SIG * FIPS_dsa_sign_ctx(DSA *dsa, EVP_MD_CTX *ctx); +int FIPS_dsa_verify_digest(DSA *dsa, + const unsigned char *dig, int dlen, DSA_SIG *s); +int FIPS_dsa_verify_ctx(DSA *dsa, EVP_MD_CTX *ctx, DSA_SIG *s); +int FIPS_dsa_verify(DSA *dsa, const unsigned char *msg, size_t msglen, + const EVP_MD *mhash, DSA_SIG *s); +DSA_SIG * FIPS_dsa_sign(DSA *dsa, const unsigned char *msg, size_t msglen, + const EVP_MD *mhash); + +#endif DSA * DSA_new(void); -DSA * DSA_new_method(DSA_METHOD *meth); -int DSA_size(DSA *); +DSA * DSA_new_method(ENGINE *engine); +void DSA_free (DSA *r); +/* "up" the DSA object's reference count */ +int DSA_up_ref(DSA *r); +int DSA_size(const DSA *); /* next 4 return -1 on error */ int DSA_sign_setup( DSA *dsa,BN_CTX *ctx_in,BIGNUM **kinvp,BIGNUM **rp); int DSA_sign(int type,const unsigned char *dgst,int dlen, unsigned char *sig, unsigned int *siglen, DSA *dsa); int DSA_verify(int type,const unsigned char *dgst,int dgst_len, - unsigned char *sigbuf, int siglen, DSA *dsa); -void DSA_free (DSA *r); -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); + const unsigned char *sigbuf, int siglen, DSA *dsa); +int DSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, + CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); +int DSA_set_ex_data(DSA *d, int idx, void *arg); +void *DSA_get_ex_data(DSA *d, int idx); -void ERR_load_DSA_strings(void ); +DSA * d2i_DSAPublicKey(DSA **a, const unsigned char **pp, long length); +DSA * d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length); +DSA * d2i_DSAparams(DSA **a, const unsigned char **pp, long length); -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); -DSA * DSA_generate_parameters(int bits, unsigned char *seed,int seed_len, +/* Deprecated version */ +#ifndef OPENSSL_NO_DEPRECATED +DSA * DSA_generate_parameters(int bits, + unsigned char *seed,int seed_len, int *counter_ret, unsigned long *h_ret,void - (*callback)(),char *cb_arg); + (*callback)(int, int, void *),void *cb_arg); +#endif /* !defined(OPENSSL_NO_DEPRECATED) */ + +/* New version */ +int DSA_generate_parameters_ex(DSA *dsa, int bits, + const unsigned char *seed,int seed_len, + int *counter_ret, unsigned long *h_ret, BN_GENCB *cb); + int DSA_generate_key(DSA *a); -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); -#ifdef HEADER_BIO_H -int DSAparams_print(BIO *bp, DSA *x); -int DSA_print(BIO *bp, DSA *x, int off); +#ifndef OPENSSL_NO_BIO +int DSAparams_print(BIO *bp, const DSA *x); +int DSA_print(BIO *bp, const DSA *x, int off); #endif -#ifndef NO_FP_API -int DSAparams_print_fp(FILE *fp, DSA *x); -int DSA_print_fp(FILE *bp, DSA *x, int off); +#ifndef OPENSSL_NO_FP_API +int DSAparams_print_fp(FILE *fp, const DSA *x); +int DSA_print_fp(FILE *bp, const DSA *x, int off); #endif -int DSA_is_prime(BIGNUM *q,void (*callback)(),char *cb_arg); +#define DSS_prime_checks 50 +/* Primality test according to FIPS PUB 186[-1], Appendix 2.1: + * 50 rounds of Rabin-Miller */ +#define DSA_is_prime(n, callback, cb_arg) \ + BN_is_prime(n, DSS_prime_checks, callback, NULL, cb_arg) -#ifndef NO_DH +#ifndef OPENSSL_NO_DH /* Convert DSA structure (key or just parameters) into DH structure * (be careful to avoid small subgroup attacks when using this!) */ -DH *DSA_dup_DH(DSA *r); +DH *DSA_dup_DH(const DSA *r); #endif +#define EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, nbits) \ + EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \ + EVP_PKEY_CTRL_DSA_PARAMGEN_BITS, nbits, NULL) + +#define EVP_PKEY_CTRL_DSA_PARAMGEN_BITS (EVP_PKEY_ALG_CTRL + 1) +#define EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS (EVP_PKEY_ALG_CTRL + 2) +#define EVP_PKEY_CTRL_DSA_PARAMGEN_MD (EVP_PKEY_ALG_CTRL + 3) + /* BEGIN ERROR CODES */ /* The following lines are auto generated by the script mkerr.pl. Any changes * made after this point may be overwritten when the script is next run. */ +void ERR_load_DSA_strings(void); /* Error codes for the DSA functions. */ /* Function codes. */ #define DSA_F_D2I_DSA_SIG 110 +#define DSA_F_DO_DSA_PRINT 104 #define DSA_F_DSAPARAMS_PRINT 100 #define DSA_F_DSAPARAMS_PRINT_FP 101 +#define DSA_F_DSA_BUILTIN_KEYGEN 124 +#define DSA_F_DSA_BUILTIN_PARAMGEN 125 +#define DSA_F_DSA_BUILTIN_PARAMGEN2 126 #define DSA_F_DSA_DO_SIGN 112 #define DSA_F_DSA_DO_VERIFY 113 -#define DSA_F_DSA_IS_PRIME 102 -#define DSA_F_DSA_NEW 103 -#define DSA_F_DSA_PRINT 104 +#define DSA_F_DSA_NEW_METHOD 103 +#define DSA_F_DSA_PARAM_DECODE 119 #define DSA_F_DSA_PRINT_FP 105 +#define DSA_F_DSA_PRIV_DECODE 115 +#define DSA_F_DSA_PRIV_ENCODE 116 +#define DSA_F_DSA_PUB_DECODE 117 +#define DSA_F_DSA_PUB_ENCODE 118 #define DSA_F_DSA_SIGN 106 #define DSA_F_DSA_SIGN_SETUP 107 #define DSA_F_DSA_SIG_NEW 109 +#define DSA_F_DSA_SIG_PRINT 123 #define DSA_F_DSA_VERIFY 108 #define DSA_F_I2D_DSA_SIG 111 +#define DSA_F_OLD_DSA_PRIV_DECODE 122 +#define DSA_F_PKEY_DSA_CTRL 120 +#define DSA_F_PKEY_DSA_KEYGEN 121 +#define DSA_F_SIG_CB 114 /* Reason codes. */ +#define DSA_R_BAD_Q_VALUE 102 +#define DSA_R_BN_DECODE_ERROR 108 +#define DSA_R_BN_ERROR 109 #define DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 100 +#define DSA_R_DECODE_ERROR 104 +#define DSA_R_INVALID_DIGEST_TYPE 106 +#define DSA_R_INVALID_PARAMETERS 112 +#define DSA_R_KEY_SIZE_TOO_SMALL 111 +#define DSA_R_MISSING_PARAMETERS 101 +#define DSA_R_MODULUS_TOO_LARGE 103 +#define DSA_R_NEED_NEW_SETUP_VALUES 110 +#define DSA_R_NO_PARAMETERS_SET 107 +#define DSA_R_PARAMETER_ENCODING_ERROR 105 +#define DSA_R_Q_NOT_PRIME 113 #ifdef __cplusplus } #endif #endif -