diff options
Diffstat (limited to 'include/openssl/ec.h')
| -rw-r--r-- | include/openssl/ec.h | 518 |
1 files changed, 446 insertions, 72 deletions
diff --git a/include/openssl/ec.h b/include/openssl/ec.h index 81e6faf6c5..e67439b73d 100644 --- a/include/openssl/ec.h +++ b/include/openssl/ec.h @@ -1,3 +1,4 @@ + /* crypto/ec/ec.h */ /* * Originally written by Bodo Moeller for the OpenSSL project. @@ -84,7 +85,7 @@ # include <openssl/asn1.h> # include <openssl/symhacks.h> -# ifndef OPENSSL_NO_DEPRECATED +# if OPENSSL_API_COMPAT < 0x10100000L # include <openssl/bn.h> # endif @@ -114,19 +115,10 @@ typedef enum { } point_conversion_form_t; typedef struct ec_method_st EC_METHOD; - -typedef struct ec_group_st - /*- - EC_METHOD *meth; - -- field definition - -- curve coefficients - -- optional generator with associated information (order, cofactor) - -- optional extra data (precomputed table for fast computation of multiples of generator) - -- ASN1 stuff - */ - EC_GROUP; - +typedef struct ec_group_st EC_GROUP; typedef struct ec_point_st EC_POINT; +typedef struct ecpk_parameters_st ECPKPARAMETERS; +typedef struct ec_parameters_st ECPARAMETERS; /********************************************************************/ /* EC_METHODs for curves over GF(p) */ @@ -149,6 +141,7 @@ const EC_METHOD *EC_GFp_mont_method(void); const EC_METHOD *EC_GFp_nist_method(void); # ifndef OPENSSL_NO_EC_NISTP_64_GCC_128 +# ifndef OPENSSL_SYS_WIN32 /** Returns 64-bit optimized methods for nistp224 * \return EC_METHOD object */ @@ -163,6 +156,7 @@ const EC_METHOD *EC_GFp_nistp256_method(void); * \return EC_METHOD object */ const EC_METHOD *EC_GFp_nistp521_method(void); +# endif # endif # ifndef OPENSSL_NO_EC2M @@ -229,7 +223,7 @@ int EC_METHOD_get_field_type(const EC_METHOD *meth); * \param order the order of the group generated by the generator. * \param cofactor the index of the sub-group generated by the generator * in the group of all points on the elliptic curve. - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, const BIGNUM *order, const BIGNUM *cofactor); @@ -249,20 +243,41 @@ BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group); /** Gets the order of a EC_GROUP * \param group EC_GROUP object * \param order BIGNUM to which the order is copied - * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \param ctx unused + * \return 1 on success and 0 if an error occurred */ int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx); +/** Gets the order of an EC_GROUP + * \param group EC_GROUP object + * \return the group order + */ + +const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group); + +/** Gets the number of bits of ther order of an EC_GROUP + * \param group EC_GROUP object + * \return number of bits of group order. + */ + +int EC_GROUP_order_bits(const EC_GROUP *group); + /** Gets the cofactor of a EC_GROUP * \param group EC_GROUP object * \param cofactor BIGNUM to which the cofactor is copied - * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \param ctx unused + * \return 1 on success and 0 if an error occurred */ int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx); +/** Gets the cofactor of an EC_GROUP + * \param group EC_GROUP object + * \return the group cofactor + */ + +const BIGNUM *EC_GROUP_get0_cofactor(const EC_GROUP *group); + /** Sets the name of a EC_GROUP object * \param group EC_GROUP object * \param nid NID of the curve name OID @@ -292,7 +307,7 @@ size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len); * \param a BIGNUM with parameter a of the equation * \param b BIGNUM with parameter b of the equation * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); @@ -303,7 +318,7 @@ int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, * \param a BIGNUM for parameter a of the equation * \param b BIGNUM for parameter b of the equation * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx); @@ -315,7 +330,7 @@ int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, * \param a BIGNUM with parameter a of the equation * \param b BIGNUM with parameter b of the equation * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); @@ -326,7 +341,7 @@ int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, * \param a BIGNUM for parameter a of the equation * \param b BIGNUM for parameter b of the equation * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx); @@ -386,6 +401,7 @@ EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); # endif + /** Creates a EC_GROUP object with a curve specified by a NID * \param nid NID of the OID of the curve name * \return newly created EC_GROUP object with specified curve or NULL @@ -393,6 +409,38 @@ EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, */ EC_GROUP *EC_GROUP_new_by_curve_name(int nid); +/** Creates a new EC_GROUP object from an ECPARAMETERS object + * \param params pointer to the ECPARAMETERS object + * \return newly created EC_GROUP object with specified curve or NULL + * if an error occurred + */ +EC_GROUP *EC_GROUP_new_from_ecparameters(const ECPARAMETERS *params); + +/** Creates an ECPARAMETERS object for the the given EC_GROUP object. + * \param group pointer to the EC_GROUP object + * \param params pointer to an existing ECPARAMETERS object or NULL + * \return pointer to the new ECPARAMETERS object or NULL + * if an error occurred. + */ +ECPARAMETERS *EC_GROUP_get_ecparameters(const EC_GROUP *group, + ECPARAMETERS *params); + +/** Creates a new EC_GROUP object from an ECPKPARAMETERS object + * \param params pointer to an existing ECPKPARAMETERS object, or NULL + * \return newly created EC_GROUP object with specified curve, or NULL + * if an error occurred + */ +EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params); + +/** Creates an ECPKPARAMETERS object for the the given EC_GROUP object. + * \param group pointer to the EC_GROUP object + * \param params pointer to an existing ECPKPARAMETERS object or NULL + * \return pointer to the new ECPKPARAMETERS object or NULL + * if an error occurred. + */ +ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group, + ECPKPARAMETERS *params); + /********************************************************************/ /* handling of internal curves */ /********************************************************************/ @@ -436,7 +484,7 @@ void EC_POINT_clear_free(EC_POINT *point); /** Copies EC_POINT object * \param dst destination EC_POINT object * \param src source EC_POINT object - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src); @@ -457,7 +505,7 @@ const EC_METHOD *EC_POINT_method_of(const EC_POINT *point); /** Sets a point to infinity (neutral element) * \param group underlying EC_GROUP object * \param point EC_POINT to set to infinity - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point); @@ -468,7 +516,7 @@ int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point); * \param y BIGNUM with the y-coordinate * \param z BIGNUM with the z-coordinate * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, const BIGNUM *x, @@ -482,7 +530,7 @@ int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, * \param y BIGNUM for the y-coordinate * \param z BIGNUM for the z-coordinate * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group, const EC_POINT *p, BIGNUM *x, @@ -495,7 +543,7 @@ int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group, * \param x BIGNUM with the x-coordinate * \param y BIGNUM with the y-coordinate * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, const BIGNUM *x, const BIGNUM *y, @@ -507,7 +555,7 @@ int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, * \param x BIGNUM for the x-coordinate * \param y BIGNUM for the y-coordinate * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, const EC_POINT *p, BIGNUM *x, @@ -519,7 +567,7 @@ int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, * \param x BIGNUM with x-coordinate * \param y_bit integer with the y-Bit (either 0 or 1) * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, const BIGNUM *x, @@ -531,7 +579,7 @@ int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, * \param x BIGNUM with the x-coordinate * \param y BIGNUM with the y-coordinate * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, const BIGNUM *x, const BIGNUM *y, @@ -543,7 +591,7 @@ int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, * \param x BIGNUM for the x-coordinate * \param y BIGNUM for the y-coordinate * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group, const EC_POINT *p, BIGNUM *x, @@ -555,7 +603,7 @@ int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group, * \param x BIGNUM with x-coordinate * \param y_bit integer with the y-Bit (either 0 or 1) * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, const BIGNUM *x, @@ -581,11 +629,25 @@ size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p, * \param buf memory buffer with the encoded ec point * \param len length of the encoded ec point * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p, const unsigned char *buf, size_t len, BN_CTX *ctx); +/** Encodes an EC_POINT object to an allocated octet string + * \param group underlying EC_GROUP object + * \param point EC_POINT object + * \param form point conversion form + * \param pbuf returns pointer to allocated buffer + * \param len length of the memory buffer + * \param ctx BN_CTX object (optional) + * \return the length of the encoded octet string or 0 if an error occurred + */ + +size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point, + point_conversion_form_t form, + unsigned char **pbuf, BN_CTX *ctx); + /* other interfaces to point2oct/oct2point: */ BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *, point_conversion_form_t form, BIGNUM *, BN_CTX *); @@ -606,7 +668,7 @@ EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *, * \param a EC_POINT object with the first summand * \param b EC_POINT object with the second summand * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx); @@ -616,7 +678,7 @@ int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, * \param r EC_POINT object for the result (r = 2 * a) * \param a EC_POINT object * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *ctx); @@ -625,7 +687,7 @@ int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, * \param group underlying EC_GROUP object * \param a EC_POINT object to be inverted (it's used for the result as well) * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx); @@ -667,7 +729,7 @@ int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, * \param p array of size num of EC_POINT objects * \param m array of size num of BIGNUM objects * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, size_t num, const EC_POINT *p[], const BIGNUM *m[], @@ -680,7 +742,7 @@ int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, * \param q EC_POINT object with the first factor of the second summand * \param m BIGNUM with the second factor of the second summand * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx); @@ -688,7 +750,7 @@ int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, /** Stores multiples of generator for faster point multiplication * \param group EC_GROUP object * \param ctx BN_CTX object (optional) - * \return 1 on success and 0 if an error occured + * \return 1 on success and 0 if an error occurred */ int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx); @@ -702,6 +764,9 @@ int EC_GROUP_have_precompute_mult(const EC_GROUP *group); /* ASN1 stuff */ /********************************************************************/ +DECLARE_ASN1_ITEM(ECPKPARAMETERS) +DECLARE_ASN1_ITEM(ECPARAMETERS) + /* * EC_GROUP_get_basis_type() returns the NID of the basis type used to * represent the field elements @@ -713,9 +778,8 @@ int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1, unsigned int *k2, unsigned int *k3); # endif -# define OPENSSL_EC_NAMED_CURVE 0x001 - -typedef struct ecpk_parameters_st ECPKPARAMETERS; +# define OPENSSL_EC_EXPLICIT_CURVE 0x000 +# define OPENSSL_EC_NAMED_CURVE 0x001 EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len); int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out); @@ -727,10 +791,8 @@ int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out); # define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \ (unsigned char *)(x)) -# ifndef OPENSSL_NO_BIO int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off); -# endif -# ifndef OPENSSL_NO_FP_API +# ifndef OPENSSL_NO_STDIO int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off); # endif @@ -738,8 +800,6 @@ int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off); /* EC_KEY functions */ /********************************************************************/ -typedef struct ec_key_st EC_KEY; - /* some values for the encoding_flag */ # define EC_PKEY_NO_PARAMETERS 0x001 # define EC_PKEY_NO_PUBKEY 0x002 @@ -747,6 +807,7 @@ typedef struct ec_key_st EC_KEY; /* some values for the flags field */ # define EC_FLAG_NON_FIPS_ALLOW 0x1 # define EC_FLAG_FIPS_CHECKED 0x2 +# define EC_FLAG_COFACTOR_ECDH 0x1000 /** Creates a new EC_KEY object. * \return EC_KEY object or NULL if an error occurred. @@ -776,13 +837,13 @@ void EC_KEY_free(EC_KEY *key); * \param src src EC_KEY object * \return dst or NULL if an error occurred. */ -EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src); +EC_KEY *EC_KEY_copy(EC_KEY *dst, EC_KEY *src); /** Creates a new EC_KEY object and copies the content from src to it. * \param src the source EC_KEY object * \return newly created EC_KEY object or NULL if an error occurred. */ -EC_KEY *EC_KEY_dup(const EC_KEY *src); +EC_KEY *EC_KEY_dup(EC_KEY *src); /** Increases the internal reference count of a EC_KEY object. * \param key EC_KEY object @@ -836,23 +897,12 @@ unsigned EC_KEY_get_enc_flags(const EC_KEY *key); void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags); point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key); void EC_KEY_set_conv_form(EC_KEY *eckey, point_conversion_form_t cform); -/* functions to set/get method specific data */ -void *EC_KEY_get_key_method_data(EC_KEY *key, - void *(*dup_func) (void *), - void (*free_func) (void *), - void (*clear_free_func) (void *)); -/** Sets the key method data of an EC_KEY object, if none has yet been set. - * \param key EC_KEY object - * \param data opaque data to install. - * \param dup_func a function that duplicates |data|. - * \param free_func a function that frees |data|. - * \param clear_free_func a function that wipes and frees |data|. - * \return the previously set data pointer, or NULL if |data| was inserted. - */ -void *EC_KEY_insert_key_method_data(EC_KEY *key, void *data, - void *(*dup_func) (void *), - void (*free_func) (void *), - void (*clear_free_func) (void *)); + +#define EC_KEY_get_ex_new_index(l, p, newf, dupf, freef) \ + CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_EC_KEY, l, p, newf, dupf, freef) +int EC_KEY_set_ex_data(EC_KEY *key, int idx, void *arg); +void *EC_KEY_get_ex_data(const EC_KEY *key, int idx); + /* wrapper functions for the underlying EC_GROUP object */ void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag); @@ -876,8 +926,14 @@ int EC_KEY_generate_key(EC_KEY *key); */ int EC_KEY_check_key(const EC_KEY *key); +/** Indicates if an EC_KEY can be used for signing. + * \param key the EC_KEY object + * \return 1 if can can sign and 0 otherwise. + */ +int EC_KEY_can_sign(const EC_KEY *eckey); + /** Sets a public key from affine coordindates performing - * neccessary NIST PKV tests. + * necessary NIST PKV tests. * \param key the EC_KEY object * \param x public key x coordinate * \param y public key y coordinate @@ -886,6 +942,56 @@ int EC_KEY_check_key(const EC_KEY *key); int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x, BIGNUM *y); +/** Encodes an EC_KEY public key to an allocated octet string + * \param key key to encode + * \param form point conversion form + * \param pbuf returns pointer to allocated buffer + * \param len length of the memory buffer + * \param ctx BN_CTX object (optional) + * \return the length of the encoded octet string or 0 if an error occurred + */ + +size_t EC_KEY_key2buf(const EC_KEY *key, point_conversion_form_t form, + unsigned char **pbuf, BN_CTX *ctx); + +/** Decodes a EC_KEY public key from a octet string + * \param key key to decode + * \param buf memory buffer with the encoded ec point + * \param len length of the encoded ec point + * \param ctx BN_CTX object (optional) + * \return 1 on success and 0 if an error occurred + */ + +int EC_KEY_oct2key(EC_KEY *key, const unsigned char *buf, size_t len, + BN_CTX *ctx); + +/** Decodes an EC_KEY private key from an octet string + * \param key key to decode + * \param buf memory buffer with the encoded private key + * \param len length of the encoded key + * \return 1 on success and 0 if an error occurred + */ + +int EC_KEY_oct2priv(EC_KEY *key, unsigned char *buf, size_t len); + +/** Encodes a EC_KEY private key to an octet string + * \param key key to encode + * \param buf memory buffer for the result. If NULL the function returns + * required buffer size. + * \param len length of the memory buffer + * \return the length of the encoded octet string or 0 if an error occurred + */ + +size_t EC_KEY_priv2oct(const EC_KEY *key, unsigned char *buf, size_t len); + +/** Encodes an EC_KEY private key to an allocated octet string + * \param key key to encode + * \param pbuf returns pointer to allocated buffer + * \return the length of the encoded octet string or 0 if an error occurred + */ + +size_t EC_KEY_priv2buf(const EC_KEY *eckey, unsigned char **pbuf); + /********************************************************************/ /* de- and encoding functions for SEC1 ECPrivateKey */ /********************************************************************/ @@ -920,7 +1026,7 @@ int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out); EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len); /** Encodes ec parameter and stores the result in a buffer. - * \param key the EC_KEY object with ec paramters to encode + * \param key the EC_KEY object with ec parameters to encode * \param out the buffer for the result (if NULL the function returns number * of bytes needed). * \return 1 on success and 0 if an error occurred. @@ -949,7 +1055,6 @@ EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len); */ int i2o_ECPublicKey(EC_KEY *key, unsigned char **out); -# ifndef OPENSSL_NO_BIO /** Prints out the ec parameters on human readable form. * \param bp BIO object to which the information is printed * \param key EC_KEY object @@ -965,8 +1070,7 @@ int ECParameters_print(BIO *bp, const EC_KEY *key); */ int EC_KEY_print(BIO *bp, const EC_KEY *key, int off); -# endif -# ifndef OPENSSL_NO_FP_API +# ifndef OPENSSL_NO_STDIO /** Prints out the ec parameters on human readable form. * \param fp file descriptor to which the information is printed * \param key EC_KEY object @@ -984,6 +1088,247 @@ int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off); # endif +const EC_KEY_METHOD *EC_KEY_OpenSSL(void); +const EC_KEY_METHOD *EC_KEY_get_default_method(void); +void EC_KEY_set_default_method(const EC_KEY_METHOD *meth); +const EC_KEY_METHOD *EC_KEY_get_method(const EC_KEY *key); +int EC_KEY_set_method(EC_KEY *key, const EC_KEY_METHOD *meth); +EC_KEY *EC_KEY_new_method(ENGINE *engine); + +int ECDH_KDF_X9_62(unsigned char *out, size_t outlen, + const unsigned char *Z, size_t Zlen, + const unsigned char *sinfo, size_t sinfolen, + const EVP_MD *md); + +int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key, + const EC_KEY *ecdh, + void *(*KDF) (const void *in, size_t inlen, + void *out, size_t *outlen)); + +typedef struct ECDSA_SIG_st ECDSA_SIG; + +/** Allocates and initialize a ECDSA_SIG structure + * \return pointer to a ECDSA_SIG structure or NULL if an error occurred + */ +ECDSA_SIG *ECDSA_SIG_new(void); + +/** frees a ECDSA_SIG structure + * \param sig pointer to the ECDSA_SIG structure + */ +void ECDSA_SIG_free(ECDSA_SIG *sig); + +/** DER encode content of ECDSA_SIG object (note: this function modifies *pp + * (*pp += length of the DER encoded signature)). + * \param sig pointer to the ECDSA_SIG object + * \param pp pointer to a unsigned char pointer for the output or NULL + * \return the length of the DER encoded ECDSA_SIG object or 0 + */ +int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp); + +/** Decodes a DER encoded ECDSA signature (note: this function changes *pp + * (*pp += len)). + * \param sig pointer to ECDSA_SIG pointer (may be NULL) + * \param pp memory buffer with the DER encoded signature + * \param len length of the buffer + * \return pointer to the decoded ECDSA_SIG structure (or NULL) + */ +ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len); + +/** Accessor for r and s fields of ECDSA_SIG + * \param sig pointer to ECDSA_SIG pointer + * \param pr pointer to BIGNUM pointer for r (may be NULL) + * \param ps pointer to BIGNUM pointer for s (may be NULL) + */ +void ECDSA_SIG_get0(BIGNUM **pr, BIGNUM **ps, ECDSA_SIG *sig); + +/** Computes the ECDSA signature of the given hash value using + * the supplied private key and returns the created signature. + * \param dgst pointer to the hash value + * \param dgst_len length of the hash value + * \param eckey EC_KEY object containing a private EC key + * \return pointer to a ECDSA_SIG structure or NULL if an error occurred + */ +ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dgst_len, + EC_KEY *eckey); + +/** Computes ECDSA signature of a given hash value using the supplied + * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). + * \param dgst pointer to the hash value to sign + * \param dgstlen length of the hash value + * \param kinv BIGNUM with a pre-computed inverse k (optional) + * \param rp BIGNUM with a pre-computed rp value (optioanl), + * see ECDSA_sign_setup + * \param eckey EC_KEY object containing a private EC key + * \return pointer to a ECDSA_SIG structure or NULL if an error occurred + */ +ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen, + const BIGNUM *kinv, const BIGNUM *rp, + EC_KEY *eckey); + +/** Verifies that the supplied signature is a valid ECDSA + * signature of the supplied hash value using the supplied public key. + * \param dgst pointer to the hash value + * \param dgst_len length of the hash value + * \param sig ECDSA_SIG structure + * \param eckey EC_KEY object containing a public EC key + * \return 1 if the signature is valid, 0 if the signature is invalid + * and -1 on error + */ +int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, + const ECDSA_SIG *sig, EC_KEY *eckey); + +/** Precompute parts of the signing operation + * \param eckey EC_KEY object containing a private EC key + * \param ctx BN_CTX object (optional) + * \param kinv BIGNUM pointer for the inverse of k + * \param rp BIGNUM pointer for x coordinate of k * generator + * \return 1 on success and 0 otherwise + */ +int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, BIGNUM **rp); + +/** Computes ECDSA signature of a given hash value using the supplied + * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). + * \param type this parameter is ignored + * \param dgst pointer to the hash value to sign + * \param dgstlen length of the hash value + * \param sig memory for the DER encoded created signature + * \param siglen pointer to the length of the returned signature + * \param eckey EC_KEY object containing a private EC key + * \return 1 on success and 0 otherwise + */ +int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen, + unsigned char *sig, unsigned int *siglen, EC_KEY *eckey); + +/** Computes ECDSA signature of a given hash value using the supplied + * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). + * \param type this parameter is ignored + * \param dgst pointer to the hash value to sign + * \param dgstlen length of the hash value + * \param sig buffer to hold the DER encoded signature + * \param siglen pointer to the length of the returned signature + * \param kinv BIGNUM with a pre-computed inverse k (optional) + * \param rp BIGNUM with a pre-computed rp value (optioanl), + * see ECDSA_sign_setup + * \param eckey EC_KEY object containing a private EC key + * \return 1 on success and 0 otherwise + */ +int ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen, + unsigned char *sig, unsigned int *siglen, + const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey); + +/** Verifies that the given signature is valid ECDSA signature + * of the supplied hash value using the specified public key. + * \param type this parameter is ignored + * \param dgst pointer to the hash value + * \param dgstlen length of the hash value + * \param sig pointer to the DER encoded signature + * \param siglen length of the DER encoded signature + * \param eckey EC_KEY object containing a public EC key + * \return 1 if the signature is valid, 0 if the signature is invalid + * and -1 on error + */ +int ECDSA_verify(int type, const unsigned char *dgst, int dgstlen, + const unsigned char *sig, int siglen, EC_KEY *eckey); + +/** Returns the maximum length of the DER encoded signature + * \param eckey EC_KEY object + * \return numbers of bytes required for the DER encoded signature + */ +int ECDSA_size(const EC_KEY *eckey); + +/********************************************************************/ +/* EC_KEY_METHOD constructors, destructors, writers and accessors */ +/********************************************************************/ + +EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth); +void EC_KEY_METHOD_free(EC_KEY_METHOD *meth); +void EC_KEY_METHOD_set_init(EC_KEY_METHOD *meth, + int (*init)(EC_KEY *key), + void (*finish)(EC_KEY *key), + int (*copy)(EC_KEY *dest, const EC_KEY *src), + int (*set_group)(EC_KEY *key, const EC_GROUP *grp), + int (*set_private)(EC_KEY *key, + const BIGNUM *priv_key), + int (*set_public)(EC_KEY *key, + const EC_POINT *pub_key)); + +void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth, + int (*keygen)(EC_KEY *key)); + +void EC_KEY_METHOD_set_compute_key(EC_KEY_METHOD *meth, + int (*ckey)(unsigned char **psec, + size_t *pseclen, + const EC_POINT *pub_key, + const EC_KEY *ecdh)); + +void EC_KEY_METHOD_set_sign(EC_KEY_METHOD *meth, + int (*sign)(int type, const unsigned char *dgst, + int dlen, unsigned char *sig, + unsigned int *siglen, + const BIGNUM *kinv, const BIGNUM *r, + EC_KEY *eckey), + int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, + BIGNUM **kinvp, BIGNUM **rp), + ECDSA_SIG *(*sign_sig)(const unsigned char *dgst, + int dgst_len, + const BIGNUM *in_kinv, + const BIGNUM *in_r, + EC_KEY *eckey)); + +void EC_KEY_METHOD_set_verify(EC_KEY_METHOD *meth, + int (*verify)(int type, const unsigned + char *dgst, int dgst_len, + const unsigned char *sigbuf, + int sig_len, EC_KEY *eckey), + int (*verify_sig)(const unsigned char *dgst, + int dgst_len, + const ECDSA_SIG *sig, + EC_KEY *eckey)); + +void EC_KEY_METHOD_get_init(EC_KEY_METHOD *meth, + int (**pinit)(EC_KEY *key), + void (**pfinish)(EC_KEY *key), + int (**pcopy)(EC_KEY *dest, const EC_KEY *src), + int (**pset_group)(EC_KEY *key, + const EC_GROUP *grp), + int (**pset_private)(EC_KEY *key, + const BIGNUM *priv_key), + int (**pset_public)(EC_KEY *key, + const EC_POINT *pub_key)); + +void EC_KEY_METHOD_get_keygen(EC_KEY_METHOD *meth, + int (**pkeygen)(EC_KEY *key)); + +void EC_KEY_METHOD_get_compute_key(EC_KEY_METHOD *meth, + int (**pck)(unsigned char **psec, + size_t *pseclen, + const EC_POINT *pub_key, + const EC_KEY *ecdh)); + +void EC_KEY_METHOD_get_sign(EC_KEY_METHOD *meth, + int (**psign)(int type, const unsigned char *dgst, + int dlen, unsigned char *sig, + unsigned int *siglen, + const BIGNUM *kinv, const BIGNUM *r, + EC_KEY *eckey), + int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, + BIGNUM **kinvp, BIGNUM **rp), + ECDSA_SIG *(**psign_sig)(const unsigned char *dgst, + int dgst_len, + const BIGNUM *in_kinv, + const BIGNUM *in_r, + EC_KEY *eckey)); + +void EC_KEY_METHOD_get_verify(EC_KEY_METHOD *meth, + int (**pverify)(int type, const unsigned + char *dgst, int dgst_len, + const unsigned char *sigbuf, + int sig_len, EC_KEY *eckey), + int (**pverify_sig)(const unsigned char *dgst, + int dgst_len, + const ECDSA_SIG *sig, + EC_KEY *eckey)); + # define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x) # ifndef __cplusplus @@ -1086,6 +1431,13 @@ void ERR_load_EC_strings(void); # define EC_F_DO_EC_KEY_PRINT 221 # define EC_F_ECDH_CMS_DECRYPT 238 # define EC_F_ECDH_CMS_SET_SHARED_INFO 239 +# define EC_F_ECDH_COMPUTE_KEY 246 +# define EC_F_ECDH_SIMPLE_COMPUTE_KEY 257 +# define EC_F_ECDSA_DO_SIGN_EX 251 +# define EC_F_ECDSA_DO_VERIFY 252 +# define EC_F_ECDSA_SIGN_EX 254 +# define EC_F_ECDSA_SIGN_SETUP 248 +# define EC_F_ECDSA_VERIFY 253 # define EC_F_ECKEY_PARAM2TYPE 223 # define EC_F_ECKEY_PARAM_DECODE 212 # define EC_F_ECKEY_PRIV_DECODE 213 @@ -1101,7 +1453,6 @@ void ERR_load_EC_strings(void); # define EC_F_ECP_NISTZ256_MULT_PRECOMPUTE 243 # define EC_F_ECP_NISTZ256_POINTS_MUL 241 # define EC_F_ECP_NISTZ256_PRE_COMP_NEW 244 -# define EC_F_ECP_NISTZ256_SET_WORDS 245 # define EC_F_ECP_NISTZ256_WINDOWED_MUL 242 # define EC_F_ECP_NIST_MOD_192 203 # define EC_F_ECP_NIST_MOD_224 204 @@ -1163,12 +1514,16 @@ void ERR_load_EC_strings(void); # define EC_F_EC_GROUP_GET_CURVE_GF2M 172 # define EC_F_EC_GROUP_GET_CURVE_GFP 130 # define EC_F_EC_GROUP_GET_DEGREE 173 +# define EC_F_EC_GROUP_GET_ECPARAMETERS 261 +# define EC_F_EC_GROUP_GET_ECPKPARAMETERS 262 # define EC_F_EC_GROUP_GET_ORDER 141 # define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS 193 # define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS 194 # define EC_F_EC_GROUP_NEW 108 # define EC_F_EC_GROUP_NEW_BY_CURVE_NAME 174 # define EC_F_EC_GROUP_NEW_FROM_DATA 175 +# define EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS 263 +# define EC_F_EC_GROUP_NEW_FROM_ECPKPARAMETERS 264 # define EC_F_EC_GROUP_PRECOMPUTE_MULT 142 # define EC_F_EC_GROUP_SET_CURVE_GF2M 176 # define EC_F_EC_GROUP_SET_CURVE_GFP 109 @@ -1178,9 +1533,15 @@ void ERR_load_EC_strings(void); # define EC_F_EC_KEY_COPY 178 # define EC_F_EC_KEY_GENERATE_KEY 179 # define EC_F_EC_KEY_NEW 182 +# define EC_F_EC_KEY_NEW_METHOD 245 +# define EC_F_EC_KEY_OCT2PRIV 255 # define EC_F_EC_KEY_PRINT 180 # define EC_F_EC_KEY_PRINT_FP 181 +# define EC_F_EC_KEY_PRIV2OCT 256 # define EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES 229 +# define EC_F_EC_KEY_SIMPLE_CHECK_KEY 258 +# define EC_F_EC_KEY_SIMPLE_OCT2PRIV 259 +# define EC_F_EC_KEY_SIMPLE_PRIV2OCT 260 # define EC_F_EC_POINTS_MAKE_AFFINE 136 # define EC_F_EC_POINT_ADD 112 # define EC_F_EC_POINT_CMP 113 @@ -1216,6 +1577,9 @@ void ERR_load_EC_strings(void); # define EC_F_NISTP521_PRE_COMP_NEW 237 # define EC_F_O2I_ECPUBLICKEY 152 # define EC_F_OLD_EC_PRIV_DECODE 222 +# define EC_F_OSSL_ECDH_COMPUTE_KEY 247 +# define EC_F_OSSL_ECDSA_SIGN_SIG 249 +# define EC_F_OSSL_ECDSA_VERIFY_SIG 250 # define EC_F_PKEY_EC_CTRL 197 # define EC_F_PKEY_EC_CTRL_STR 198 # define EC_F_PKEY_EC_DERIVE 217 @@ -1226,9 +1590,12 @@ void ERR_load_EC_strings(void); /* Reason codes. */ # define EC_R_ASN1_ERROR 115 # define EC_R_ASN1_UNKNOWN_FIELD 116 +# define EC_R_BAD_SIGNATURE 156 # define EC_R_BIGNUM_OUT_OF_RANGE 144 # define EC_R_BUFFER_TOO_SMALL 100 # define EC_R_COORDINATES_OUT_OF_RANGE 146 +# define EC_R_CURVE_DOES_NOT_SUPPORT_ECDH 160 +# define EC_R_CURVE_DOES_NOT_SUPPORT_SIGNING 159 # define EC_R_D2I_ECPKPARAMETERS_FAILURE 117 # define EC_R_DECODE_ERROR 142 # define EC_R_DISCRIMINANT_IS_ZERO 118 @@ -1248,24 +1615,31 @@ void ERR_load_EC_strings(void); # define EC_R_INVALID_FIELD 103 # define EC_R_INVALID_FORM 104 # define EC_R_INVALID_GROUP_ORDER 122 +# define EC_R_INVALID_OUTPUT_LENGTH 161 # define EC_R_INVALID_PENTANOMIAL_BASIS 132 # define EC_R_INVALID_PRIVATE_KEY 123 # define EC_R_INVALID_TRINOMIAL_BASIS 137 +# define EC_R_KDF_FAILED 153 # define EC_R_KDF_PARAMETER_ERROR 148 # define EC_R_KEYS_NOT_SET 140 # define EC_R_MISSING_PARAMETERS 124 # define EC_R_MISSING_PRIVATE_KEY 125 +# define EC_R_NEED_NEW_SETUP_VALUES 157 # define EC_R_NOT_A_NIST_PRIME 135 # define EC_R_NOT_A_SUPPORTED_NIST_PRIME 136 # define EC_R_NOT_IMPLEMENTED 126 # define EC_R_NOT_INITIALIZED 111 # define EC_R_NO_FIELD_MOD 133 # define EC_R_NO_PARAMETERS_SET 139 +# define EC_R_NO_PRIVATE_VALUE 154 +# define EC_R_OPERATION_NOT_SUPPORTED 152 # define EC_R_PASSED_NULL_PARAMETER 134 # define EC_R_PEER_KEY_ERROR 149 # define EC_R_PKPARAMETERS2GROUP_FAILURE 127 +# define EC_R_POINT_ARITHMETIC_FAILURE 155 # define EC_R_POINT_AT_INFINITY 106 # define EC_R_POINT_IS_NOT_ON_CURVE 107 +# define EC_R_RANDOM_NUMBER_GENERATION_FAILED 158 # define EC_R_SHARED_INFO_ERROR 150 # define EC_R_SLOT_FULL 108 # define EC_R_UNDEFINED_GENERATOR 113 |