diff options
Diffstat (limited to 'openssl/crypto/ec/ec_asn1.c')
| -rw-r--r-- | openssl/crypto/ec/ec_asn1.c | 2410 |
1 files changed, 1126 insertions, 1284 deletions
diff --git a/openssl/crypto/ec/ec_asn1.c b/openssl/crypto/ec/ec_asn1.c index 52d31c2f9..b4b0e9f3b 100644 --- a/openssl/crypto/ec/ec_asn1.c +++ b/openssl/crypto/ec/ec_asn1.c @@ -10,7 +10,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -62,145 +62,148 @@ #include <openssl/asn1t.h> #include <openssl/objects.h> - int EC_GROUP_get_basis_type(const EC_GROUP *group) - { - int i=0; - - if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) != - NID_X9_62_characteristic_two_field) - /* everything else is currently not supported */ - return 0; - - while (group->poly[i] != 0) - i++; - - if (i == 4) - return NID_X9_62_ppBasis; - else if (i == 2) - return NID_X9_62_tpBasis; - else - /* everything else is currently not supported */ - return 0; - } +{ + int i = 0; + + if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) != + NID_X9_62_characteristic_two_field) + /* everything else is currently not supported */ + return 0; + + while (group->poly[i] != 0) + i++; + + if (i == 4) + return NID_X9_62_ppBasis; + else if (i == 2) + return NID_X9_62_tpBasis; + else + /* everything else is currently not supported */ + return 0; +} + #ifndef OPENSSL_NO_EC2M int EC_GROUP_get_trinomial_basis(const EC_GROUP *group, unsigned int *k) - { - if (group == NULL) - return 0; - - if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) != - NID_X9_62_characteristic_two_field - || !((group->poly[0] != 0) && (group->poly[1] != 0) && (group->poly[2] == 0))) - { - ECerr(EC_F_EC_GROUP_GET_TRINOMIAL_BASIS, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); - return 0; - } - - if (k) - *k = group->poly[1]; - - return 1; - } +{ + if (group == NULL) + return 0; + + if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) != + NID_X9_62_characteristic_two_field + || !((group->poly[0] != 0) && (group->poly[1] != 0) + && (group->poly[2] == 0))) { + ECerr(EC_F_EC_GROUP_GET_TRINOMIAL_BASIS, + ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + + if (k) + *k = group->poly[1]; + + return 1; +} + int EC_GROUP_get_pentanomial_basis(const EC_GROUP *group, unsigned int *k1, - unsigned int *k2, unsigned int *k3) - { - if (group == NULL) - return 0; - - if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) != - NID_X9_62_characteristic_two_field - || !((group->poly[0] != 0) && (group->poly[1] != 0) && (group->poly[2] != 0) && (group->poly[3] != 0) && (group->poly[4] == 0))) - { - ECerr(EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); - return 0; - } - - if (k1) - *k1 = group->poly[3]; - if (k2) - *k2 = group->poly[2]; - if (k3) - *k3 = group->poly[1]; - - return 1; - } + unsigned int *k2, unsigned int *k3) +{ + if (group == NULL) + return 0; + + if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) != + NID_X9_62_characteristic_two_field + || !((group->poly[0] != 0) && (group->poly[1] != 0) + && (group->poly[2] != 0) && (group->poly[3] != 0) + && (group->poly[4] == 0))) { + ECerr(EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS, + ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + + if (k1) + *k1 = group->poly[3]; + if (k2) + *k2 = group->poly[2]; + if (k3) + *k3 = group->poly[1]; + + return 1; +} #endif - /* some structures needed for the asn1 encoding */ typedef struct x9_62_pentanomial_st { - long k1; - long k2; - long k3; - } X9_62_PENTANOMIAL; + long k1; + long k2; + long k3; +} X9_62_PENTANOMIAL; typedef struct x9_62_characteristic_two_st { - long m; - ASN1_OBJECT *type; - union { - char *ptr; - /* NID_X9_62_onBasis */ - ASN1_NULL *onBasis; - /* NID_X9_62_tpBasis */ - ASN1_INTEGER *tpBasis; - /* NID_X9_62_ppBasis */ - X9_62_PENTANOMIAL *ppBasis; - /* anything else */ - ASN1_TYPE *other; - } p; - } X9_62_CHARACTERISTIC_TWO; + long m; + ASN1_OBJECT *type; + union { + char *ptr; + /* NID_X9_62_onBasis */ + ASN1_NULL *onBasis; + /* NID_X9_62_tpBasis */ + ASN1_INTEGER *tpBasis; + /* NID_X9_62_ppBasis */ + X9_62_PENTANOMIAL *ppBasis; + /* anything else */ + ASN1_TYPE *other; + } p; +} X9_62_CHARACTERISTIC_TWO; typedef struct x9_62_fieldid_st { - ASN1_OBJECT *fieldType; - union { - char *ptr; - /* NID_X9_62_prime_field */ - ASN1_INTEGER *prime; - /* NID_X9_62_characteristic_two_field */ - X9_62_CHARACTERISTIC_TWO *char_two; - /* anything else */ - ASN1_TYPE *other; - } p; - } X9_62_FIELDID; + ASN1_OBJECT *fieldType; + union { + char *ptr; + /* NID_X9_62_prime_field */ + ASN1_INTEGER *prime; + /* NID_X9_62_characteristic_two_field */ + X9_62_CHARACTERISTIC_TWO *char_two; + /* anything else */ + ASN1_TYPE *other; + } p; +} X9_62_FIELDID; typedef struct x9_62_curve_st { - ASN1_OCTET_STRING *a; - ASN1_OCTET_STRING *b; - ASN1_BIT_STRING *seed; - } X9_62_CURVE; + ASN1_OCTET_STRING *a; + ASN1_OCTET_STRING *b; + ASN1_BIT_STRING *seed; +} X9_62_CURVE; typedef struct ec_parameters_st { - long version; - X9_62_FIELDID *fieldID; - X9_62_CURVE *curve; - ASN1_OCTET_STRING *base; - ASN1_INTEGER *order; - ASN1_INTEGER *cofactor; - } ECPARAMETERS; + long version; + X9_62_FIELDID *fieldID; + X9_62_CURVE *curve; + ASN1_OCTET_STRING *base; + ASN1_INTEGER *order; + ASN1_INTEGER *cofactor; +} ECPARAMETERS; struct ecpk_parameters_st { - int type; - union { - ASN1_OBJECT *named_curve; - ECPARAMETERS *parameters; - ASN1_NULL *implicitlyCA; - } value; - }/* ECPKPARAMETERS */; + int type; + union { + ASN1_OBJECT *named_curve; + ECPARAMETERS *parameters; + ASN1_NULL *implicitlyCA; + } value; +} /* ECPKPARAMETERS */ ; /* SEC1 ECPrivateKey */ typedef struct ec_privatekey_st { - long version; - ASN1_OCTET_STRING *privateKey; - ECPKPARAMETERS *parameters; - ASN1_BIT_STRING *publicKey; - } EC_PRIVATEKEY; + long version; + ASN1_OCTET_STRING *privateKey; + ECPKPARAMETERS *parameters; + ASN1_BIT_STRING *publicKey; +} EC_PRIVATEKEY; /* the OpenSSL ASN.1 definitions */ ASN1_SEQUENCE(X9_62_PENTANOMIAL) = { - ASN1_SIMPLE(X9_62_PENTANOMIAL, k1, LONG), - ASN1_SIMPLE(X9_62_PENTANOMIAL, k2, LONG), - ASN1_SIMPLE(X9_62_PENTANOMIAL, k3, LONG) + ASN1_SIMPLE(X9_62_PENTANOMIAL, k1, LONG), + ASN1_SIMPLE(X9_62_PENTANOMIAL, k2, LONG), + ASN1_SIMPLE(X9_62_PENTANOMIAL, k3, LONG) } ASN1_SEQUENCE_END(X9_62_PENTANOMIAL) DECLARE_ASN1_ALLOC_FUNCTIONS(X9_62_PENTANOMIAL) @@ -209,15 +212,15 @@ IMPLEMENT_ASN1_ALLOC_FUNCTIONS(X9_62_PENTANOMIAL) ASN1_ADB_TEMPLATE(char_two_def) = ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.other, ASN1_ANY); ASN1_ADB(X9_62_CHARACTERISTIC_TWO) = { - ADB_ENTRY(NID_X9_62_onBasis, ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.onBasis, ASN1_NULL)), - ADB_ENTRY(NID_X9_62_tpBasis, ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.tpBasis, ASN1_INTEGER)), - ADB_ENTRY(NID_X9_62_ppBasis, ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.ppBasis, X9_62_PENTANOMIAL)) + ADB_ENTRY(NID_X9_62_onBasis, ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.onBasis, ASN1_NULL)), + ADB_ENTRY(NID_X9_62_tpBasis, ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.tpBasis, ASN1_INTEGER)), + ADB_ENTRY(NID_X9_62_ppBasis, ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.ppBasis, X9_62_PENTANOMIAL)) } ASN1_ADB_END(X9_62_CHARACTERISTIC_TWO, 0, type, 0, &char_two_def_tt, NULL); ASN1_SEQUENCE(X9_62_CHARACTERISTIC_TWO) = { - ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, m, LONG), - ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, type, ASN1_OBJECT), - ASN1_ADB_OBJECT(X9_62_CHARACTERISTIC_TWO) + ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, m, LONG), + ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, type, ASN1_OBJECT), + ASN1_ADB_OBJECT(X9_62_CHARACTERISTIC_TWO) } ASN1_SEQUENCE_END(X9_62_CHARACTERISTIC_TWO) DECLARE_ASN1_ALLOC_FUNCTIONS(X9_62_CHARACTERISTIC_TWO) @@ -226,37 +229,37 @@ IMPLEMENT_ASN1_ALLOC_FUNCTIONS(X9_62_CHARACTERISTIC_TWO) ASN1_ADB_TEMPLATE(fieldID_def) = ASN1_SIMPLE(X9_62_FIELDID, p.other, ASN1_ANY); ASN1_ADB(X9_62_FIELDID) = { - ADB_ENTRY(NID_X9_62_prime_field, ASN1_SIMPLE(X9_62_FIELDID, p.prime, ASN1_INTEGER)), - ADB_ENTRY(NID_X9_62_characteristic_two_field, ASN1_SIMPLE(X9_62_FIELDID, p.char_two, X9_62_CHARACTERISTIC_TWO)) + ADB_ENTRY(NID_X9_62_prime_field, ASN1_SIMPLE(X9_62_FIELDID, p.prime, ASN1_INTEGER)), + ADB_ENTRY(NID_X9_62_characteristic_two_field, ASN1_SIMPLE(X9_62_FIELDID, p.char_two, X9_62_CHARACTERISTIC_TWO)) } ASN1_ADB_END(X9_62_FIELDID, 0, fieldType, 0, &fieldID_def_tt, NULL); ASN1_SEQUENCE(X9_62_FIELDID) = { - ASN1_SIMPLE(X9_62_FIELDID, fieldType, ASN1_OBJECT), - ASN1_ADB_OBJECT(X9_62_FIELDID) + ASN1_SIMPLE(X9_62_FIELDID, fieldType, ASN1_OBJECT), + ASN1_ADB_OBJECT(X9_62_FIELDID) } ASN1_SEQUENCE_END(X9_62_FIELDID) ASN1_SEQUENCE(X9_62_CURVE) = { - ASN1_SIMPLE(X9_62_CURVE, a, ASN1_OCTET_STRING), - ASN1_SIMPLE(X9_62_CURVE, b, ASN1_OCTET_STRING), - ASN1_OPT(X9_62_CURVE, seed, ASN1_BIT_STRING) + ASN1_SIMPLE(X9_62_CURVE, a, ASN1_OCTET_STRING), + ASN1_SIMPLE(X9_62_CURVE, b, ASN1_OCTET_STRING), + ASN1_OPT(X9_62_CURVE, seed, ASN1_BIT_STRING) } ASN1_SEQUENCE_END(X9_62_CURVE) ASN1_SEQUENCE(ECPARAMETERS) = { - ASN1_SIMPLE(ECPARAMETERS, version, LONG), - ASN1_SIMPLE(ECPARAMETERS, fieldID, X9_62_FIELDID), - ASN1_SIMPLE(ECPARAMETERS, curve, X9_62_CURVE), - ASN1_SIMPLE(ECPARAMETERS, base, ASN1_OCTET_STRING), - ASN1_SIMPLE(ECPARAMETERS, order, ASN1_INTEGER), - ASN1_OPT(ECPARAMETERS, cofactor, ASN1_INTEGER) + ASN1_SIMPLE(ECPARAMETERS, version, LONG), + ASN1_SIMPLE(ECPARAMETERS, fieldID, X9_62_FIELDID), + ASN1_SIMPLE(ECPARAMETERS, curve, X9_62_CURVE), + ASN1_SIMPLE(ECPARAMETERS, base, ASN1_OCTET_STRING), + ASN1_SIMPLE(ECPARAMETERS, order, ASN1_INTEGER), + ASN1_OPT(ECPARAMETERS, cofactor, ASN1_INTEGER) } ASN1_SEQUENCE_END(ECPARAMETERS) DECLARE_ASN1_ALLOC_FUNCTIONS(ECPARAMETERS) IMPLEMENT_ASN1_ALLOC_FUNCTIONS(ECPARAMETERS) ASN1_CHOICE(ECPKPARAMETERS) = { - ASN1_SIMPLE(ECPKPARAMETERS, value.named_curve, ASN1_OBJECT), - ASN1_SIMPLE(ECPKPARAMETERS, value.parameters, ECPARAMETERS), - ASN1_SIMPLE(ECPKPARAMETERS, value.implicitlyCA, ASN1_NULL) + ASN1_SIMPLE(ECPKPARAMETERS, value.named_curve, ASN1_OBJECT), + ASN1_SIMPLE(ECPKPARAMETERS, value.parameters, ECPARAMETERS), + ASN1_SIMPLE(ECPKPARAMETERS, value.implicitlyCA, ASN1_NULL) } ASN1_CHOICE_END(ECPKPARAMETERS) DECLARE_ASN1_FUNCTIONS_const(ECPKPARAMETERS) @@ -264,10 +267,10 @@ DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECPKPARAMETERS, ECPKPARAMETERS) IMPLEMENT_ASN1_FUNCTIONS_const(ECPKPARAMETERS) ASN1_SEQUENCE(EC_PRIVATEKEY) = { - ASN1_SIMPLE(EC_PRIVATEKEY, version, LONG), - ASN1_SIMPLE(EC_PRIVATEKEY, privateKey, ASN1_OCTET_STRING), - ASN1_EXP_OPT(EC_PRIVATEKEY, parameters, ECPKPARAMETERS, 0), - ASN1_EXP_OPT(EC_PRIVATEKEY, publicKey, ASN1_BIT_STRING, 1) + ASN1_SIMPLE(EC_PRIVATEKEY, version, LONG), + ASN1_SIMPLE(EC_PRIVATEKEY, privateKey, ASN1_OCTET_STRING), + ASN1_EXP_OPT(EC_PRIVATEKEY, parameters, ECPKPARAMETERS, 0), + ASN1_EXP_OPT(EC_PRIVATEKEY, publicKey, ASN1_BIT_STRING, 1) } ASN1_SEQUENCE_END(EC_PRIVATEKEY) DECLARE_ASN1_FUNCTIONS_const(EC_PRIVATEKEY) @@ -276,1191 +279,1030 @@ IMPLEMENT_ASN1_FUNCTIONS_const(EC_PRIVATEKEY) /* some declarations of internal function */ -/* ec_asn1_group2field() sets the values in a X9_62_FIELDID object */ +/* ec_asn1_group2field() sets the values in a X9_62_FIELDID object */ static int ec_asn1_group2fieldid(const EC_GROUP *, X9_62_FIELDID *); -/* ec_asn1_group2curve() sets the values in a X9_62_CURVE object */ +/* ec_asn1_group2curve() sets the values in a X9_62_CURVE object */ static int ec_asn1_group2curve(const EC_GROUP *, X9_62_CURVE *); -/* ec_asn1_parameters2group() creates a EC_GROUP object from a - * ECPARAMETERS object */ -static EC_GROUP *ec_asn1_parameters2group(const ECPARAMETERS *); -/* ec_asn1_group2parameters() creates a ECPARAMETERS object from a - * EC_GROUP object */ -static ECPARAMETERS *ec_asn1_group2parameters(const EC_GROUP *,ECPARAMETERS *); -/* ec_asn1_pkparameters2group() creates a EC_GROUP object from a - * ECPKPARAMETERS object */ -static EC_GROUP *ec_asn1_pkparameters2group(const ECPKPARAMETERS *); -/* ec_asn1_group2pkparameters() creates a ECPKPARAMETERS object from a - * EC_GROUP object */ -static ECPKPARAMETERS *ec_asn1_group2pkparameters(const EC_GROUP *, - ECPKPARAMETERS *); - +/* + * ec_asn1_parameters2group() creates a EC_GROUP object from a ECPARAMETERS + * object + */ +static EC_GROUP *ec_asn1_parameters2group(const ECPARAMETERS *); +/* + * ec_asn1_group2parameters() creates a ECPARAMETERS object from a EC_GROUP + * object + */ +static ECPARAMETERS *ec_asn1_group2parameters(const EC_GROUP *, + ECPARAMETERS *); +/* + * ec_asn1_pkparameters2group() creates a EC_GROUP object from a + * ECPKPARAMETERS object + */ +static EC_GROUP *ec_asn1_pkparameters2group(const ECPKPARAMETERS *); +/* + * ec_asn1_group2pkparameters() creates a ECPKPARAMETERS object from a + * EC_GROUP object + */ +static ECPKPARAMETERS *ec_asn1_group2pkparameters(const EC_GROUP *, + ECPKPARAMETERS *); /* the function definitions */ static int ec_asn1_group2fieldid(const EC_GROUP *group, X9_62_FIELDID *field) - { - int ok=0, nid; - BIGNUM *tmp = NULL; - - if (group == NULL || field == NULL) - return 0; - - /* clear the old values (if necessary) */ - if (field->fieldType != NULL) - ASN1_OBJECT_free(field->fieldType); - if (field->p.other != NULL) - ASN1_TYPE_free(field->p.other); - - nid = EC_METHOD_get_field_type(EC_GROUP_method_of(group)); - /* set OID for the field */ - if ((field->fieldType = OBJ_nid2obj(nid)) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_OBJ_LIB); - goto err; - } - - if (nid == NID_X9_62_prime_field) - { - if ((tmp = BN_new()) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); - goto err; - } - /* the parameters are specified by the prime number p */ - if (!EC_GROUP_get_curve_GFp(group, tmp, NULL, NULL, NULL)) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_EC_LIB); - goto err; - } - /* set the prime number */ - field->p.prime = BN_to_ASN1_INTEGER(tmp,NULL); - if (field->p.prime == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_ASN1_LIB); - goto err; - } - } - else /* nid == NID_X9_62_characteristic_two_field */ +{ + int ok = 0, nid; + BIGNUM *tmp = NULL; + + if (group == NULL || field == NULL) + return 0; + + /* clear the old values (if necessary) */ + if (field->fieldType != NULL) + ASN1_OBJECT_free(field->fieldType); + if (field->p.other != NULL) + ASN1_TYPE_free(field->p.other); + + nid = EC_METHOD_get_field_type(EC_GROUP_method_of(group)); + /* set OID for the field */ + if ((field->fieldType = OBJ_nid2obj(nid)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_OBJ_LIB); + goto err; + } + + if (nid == NID_X9_62_prime_field) { + if ((tmp = BN_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); + goto err; + } + /* the parameters are specified by the prime number p */ + if (!EC_GROUP_get_curve_GFp(group, tmp, NULL, NULL, NULL)) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_EC_LIB); + goto err; + } + /* set the prime number */ + field->p.prime = BN_to_ASN1_INTEGER(tmp, NULL); + if (field->p.prime == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_ASN1_LIB); + goto err; + } + } else /* nid == NID_X9_62_characteristic_two_field */ #ifdef OPENSSL_NO_EC2M - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, EC_R_GF2M_NOT_SUPPORTED); - goto err; - } + { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, EC_R_GF2M_NOT_SUPPORTED); + goto err; + } #else - { - int field_type; - X9_62_CHARACTERISTIC_TWO *char_two; - - field->p.char_two = X9_62_CHARACTERISTIC_TWO_new(); - char_two = field->p.char_two; - - if (char_two == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); - goto err; - } - - char_two->m = (long)EC_GROUP_get_degree(group); - - field_type = EC_GROUP_get_basis_type(group); - - if (field_type == 0) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_EC_LIB); - goto err; - } - /* set base type OID */ - if ((char_two->type = OBJ_nid2obj(field_type)) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_OBJ_LIB); - goto err; - } - - if (field_type == NID_X9_62_tpBasis) - { - unsigned int k; - - if (!EC_GROUP_get_trinomial_basis(group, &k)) - goto err; - - char_two->p.tpBasis = ASN1_INTEGER_new(); - if (!char_two->p.tpBasis) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); - goto err; - } - if (!ASN1_INTEGER_set(char_two->p.tpBasis, (long)k)) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, - ERR_R_ASN1_LIB); - goto err; - } - } - else if (field_type == NID_X9_62_ppBasis) - { - unsigned int k1, k2, k3; - - if (!EC_GROUP_get_pentanomial_basis(group, &k1, &k2, &k3)) - goto err; - - char_two->p.ppBasis = X9_62_PENTANOMIAL_new(); - if (!char_two->p.ppBasis) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); - goto err; - } - - /* set k? values */ - char_two->p.ppBasis->k1 = (long)k1; - char_two->p.ppBasis->k2 = (long)k2; - char_two->p.ppBasis->k3 = (long)k3; - } - else /* field_type == NID_X9_62_onBasis */ - { - /* for ONB the parameters are (asn1) NULL */ - char_two->p.onBasis = ASN1_NULL_new(); - if (!char_two->p.onBasis) - { - ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); - goto err; - } - } - } + { + int field_type; + X9_62_CHARACTERISTIC_TWO *char_two; + + field->p.char_two = X9_62_CHARACTERISTIC_TWO_new(); + char_two = field->p.char_two; + + if (char_two == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); + goto err; + } + + char_two->m = (long)EC_GROUP_get_degree(group); + + field_type = EC_GROUP_get_basis_type(group); + + if (field_type == 0) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_EC_LIB); + goto err; + } + /* set base type OID */ + if ((char_two->type = OBJ_nid2obj(field_type)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_OBJ_LIB); + goto err; + } + + if (field_type == NID_X9_62_tpBasis) { + unsigned int k; + + if (!EC_GROUP_get_trinomial_basis(group, &k)) + goto err; + + char_two->p.tpBasis = ASN1_INTEGER_new(); + if (!char_two->p.tpBasis) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); + goto err; + } + if (!ASN1_INTEGER_set(char_two->p.tpBasis, (long)k)) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_ASN1_LIB); + goto err; + } + } else if (field_type == NID_X9_62_ppBasis) { + unsigned int k1, k2, k3; + + if (!EC_GROUP_get_pentanomial_basis(group, &k1, &k2, &k3)) + goto err; + + char_two->p.ppBasis = X9_62_PENTANOMIAL_new(); + if (!char_two->p.ppBasis) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); + goto err; + } + + /* set k? values */ + char_two->p.ppBasis->k1 = (long)k1; + char_two->p.ppBasis->k2 = (long)k2; + char_two->p.ppBasis->k3 = (long)k3; + } else { /* field_type == NID_X9_62_onBasis */ + + /* for ONB the parameters are (asn1) NULL */ + char_two->p.onBasis = ASN1_NULL_new(); + if (!char_two->p.onBasis) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); + goto err; + } + } + } #endif - ok = 1; + ok = 1; -err : if (tmp) - BN_free(tmp); - return(ok); + err:if (tmp) + BN_free(tmp); + return (ok); } static int ec_asn1_group2curve(const EC_GROUP *group, X9_62_CURVE *curve) - { - int ok=0, nid; - BIGNUM *tmp_1=NULL, *tmp_2=NULL; - unsigned char *buffer_1=NULL, *buffer_2=NULL, - *a_buf=NULL, *b_buf=NULL; - size_t len_1, len_2; - unsigned char char_zero = 0; - - if (!group || !curve || !curve->a || !curve->b) - return 0; - - if ((tmp_1 = BN_new()) == NULL || (tmp_2 = BN_new()) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE); - goto err; - } - - nid = EC_METHOD_get_field_type(EC_GROUP_method_of(group)); - - /* get a and b */ - if (nid == NID_X9_62_prime_field) - { - if (!EC_GROUP_get_curve_GFp(group, NULL, tmp_1, tmp_2, NULL)) - { - ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_EC_LIB); - goto err; - } - } +{ + int ok = 0, nid; + BIGNUM *tmp_1 = NULL, *tmp_2 = NULL; + unsigned char *buffer_1 = NULL, *buffer_2 = NULL, + *a_buf = NULL, *b_buf = NULL; + size_t len_1, len_2; + unsigned char char_zero = 0; + + if (!group || !curve || !curve->a || !curve->b) + return 0; + + if ((tmp_1 = BN_new()) == NULL || (tmp_2 = BN_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE); + goto err; + } + + nid = EC_METHOD_get_field_type(EC_GROUP_method_of(group)); + + /* get a and b */ + if (nid == NID_X9_62_prime_field) { + if (!EC_GROUP_get_curve_GFp(group, NULL, tmp_1, tmp_2, NULL)) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_EC_LIB); + goto err; + } + } #ifndef OPENSSL_NO_EC2M - else /* nid == NID_X9_62_characteristic_two_field */ - { - if (!EC_GROUP_get_curve_GF2m(group, NULL, tmp_1, tmp_2, NULL)) - { - ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_EC_LIB); - goto err; - } - } + else { /* nid == NID_X9_62_characteristic_two_field */ + + if (!EC_GROUP_get_curve_GF2m(group, NULL, tmp_1, tmp_2, NULL)) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_EC_LIB); + goto err; + } + } #endif - len_1 = (size_t)BN_num_bytes(tmp_1); - len_2 = (size_t)BN_num_bytes(tmp_2); - - if (len_1 == 0) - { - /* len_1 == 0 => a == 0 */ - a_buf = &char_zero; - len_1 = 1; - } - else - { - if ((buffer_1 = OPENSSL_malloc(len_1)) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2CURVE, - ERR_R_MALLOC_FAILURE); - goto err; - } - if ( (len_1 = BN_bn2bin(tmp_1, buffer_1)) == 0) - { - ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_BN_LIB); - goto err; - } - a_buf = buffer_1; - } - - if (len_2 == 0) - { - /* len_2 == 0 => b == 0 */ - b_buf = &char_zero; - len_2 = 1; - } - else - { - if ((buffer_2 = OPENSSL_malloc(len_2)) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2CURVE, - ERR_R_MALLOC_FAILURE); - goto err; - } - if ( (len_2 = BN_bn2bin(tmp_2, buffer_2)) == 0) - { - ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_BN_LIB); - goto err; - } - b_buf = buffer_2; - } - - /* set a and b */ - if (!M_ASN1_OCTET_STRING_set(curve->a, a_buf, len_1) || - !M_ASN1_OCTET_STRING_set(curve->b, b_buf, len_2)) - { - ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_ASN1_LIB); - goto err; - } - - /* set the seed (optional) */ - if (group->seed) - { - if (!curve->seed) - if ((curve->seed = ASN1_BIT_STRING_new()) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE); - goto err; - } - curve->seed->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); - curve->seed->flags |= ASN1_STRING_FLAG_BITS_LEFT; - if (!ASN1_BIT_STRING_set(curve->seed, group->seed, - (int)group->seed_len)) - { - ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_ASN1_LIB); - goto err; - } - } - else - { - if (curve->seed) - { - ASN1_BIT_STRING_free(curve->seed); - curve->seed = NULL; - } - } - - ok = 1; - -err: if (buffer_1) - OPENSSL_free(buffer_1); - if (buffer_2) - OPENSSL_free(buffer_2); - if (tmp_1) - BN_free(tmp_1); - if (tmp_2) - BN_free(tmp_2); - return(ok); - } + len_1 = (size_t)BN_num_bytes(tmp_1); + len_2 = (size_t)BN_num_bytes(tmp_2); + + if (len_1 == 0) { + /* len_1 == 0 => a == 0 */ + a_buf = &char_zero; + len_1 = 1; + } else { + if ((buffer_1 = OPENSSL_malloc(len_1)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE); + goto err; + } + if ((len_1 = BN_bn2bin(tmp_1, buffer_1)) == 0) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_BN_LIB); + goto err; + } + a_buf = buffer_1; + } + + if (len_2 == 0) { + /* len_2 == 0 => b == 0 */ + b_buf = &char_zero; + len_2 = 1; + } else { + if ((buffer_2 = OPENSSL_malloc(len_2)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE); + goto err; + } + if ((len_2 = BN_bn2bin(tmp_2, buffer_2)) == 0) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_BN_LIB); + goto err; + } + b_buf = buffer_2; + } + + /* set a and b */ + if (!M_ASN1_OCTET_STRING_set(curve->a, a_buf, len_1) || + !M_ASN1_OCTET_STRING_set(curve->b, b_buf, len_2)) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_ASN1_LIB); + goto err; + } + + /* set the seed (optional) */ + if (group->seed) { + if (!curve->seed) + if ((curve->seed = ASN1_BIT_STRING_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE); + goto err; + } + curve->seed->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); + curve->seed->flags |= ASN1_STRING_FLAG_BITS_LEFT; + if (!ASN1_BIT_STRING_set(curve->seed, group->seed, + (int)group->seed_len)) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_ASN1_LIB); + goto err; + } + } else { + if (curve->seed) { + ASN1_BIT_STRING_free(curve->seed); + curve->seed = NULL; + } + } + + ok = 1; + + err:if (buffer_1) + OPENSSL_free(buffer_1); + if (buffer_2) + OPENSSL_free(buffer_2); + if (tmp_1) + BN_free(tmp_1); + if (tmp_2) + BN_free(tmp_2); + return (ok); +} static ECPARAMETERS *ec_asn1_group2parameters(const EC_GROUP *group, ECPARAMETERS *param) - { - int ok=0; - size_t len=0; - ECPARAMETERS *ret=NULL; - BIGNUM *tmp=NULL; - unsigned char *buffer=NULL; - const EC_POINT *point=NULL; - point_conversion_form_t form; - - if ((tmp = BN_new()) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); - goto err; - } - - if (param == NULL) - { - if ((ret = ECPARAMETERS_new()) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, - ERR_R_MALLOC_FAILURE); - goto err; - } - } - else - ret = param; - - /* set the version (always one) */ - ret->version = (long)0x1; - - /* set the fieldID */ - if (!ec_asn1_group2fieldid(group, ret->fieldID)) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); - goto err; - } - - /* set the curve */ - if (!ec_asn1_group2curve(group, ret->curve)) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); - goto err; - } - - /* set the base point */ - if ((point = EC_GROUP_get0_generator(group)) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, EC_R_UNDEFINED_GENERATOR); - goto err; - } - - form = EC_GROUP_get_point_conversion_form(group); - - len = EC_POINT_point2oct(group, point, form, NULL, len, NULL); - if (len == 0) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); - goto err; - } - if ((buffer = OPENSSL_malloc(len)) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); - goto err; - } - if (!EC_POINT_point2oct(group, point, form, buffer, len, NULL)) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); - goto err; - } - if (ret->base == NULL && (ret->base = ASN1_OCTET_STRING_new()) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); - goto err; - } - if (!ASN1_OCTET_STRING_set(ret->base, buffer, len)) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB); - goto err; - } - - /* set the order */ - if (!EC_GROUP_get_order(group, tmp, NULL)) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); - goto err; - } - ret->order = BN_to_ASN1_INTEGER(tmp, ret->order); - if (ret->order == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB); - goto err; - } - - /* set the cofactor (optional) */ - if (EC_GROUP_get_cofactor(group, tmp, NULL)) - { - ret->cofactor = BN_to_ASN1_INTEGER(tmp, ret->cofactor); - if (ret->cofactor == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB); - goto err; - } - } - - ok = 1; - -err : if(!ok) - { - if (ret && !param) - ECPARAMETERS_free(ret); - ret = NULL; - } - if (tmp) - BN_free(tmp); - if (buffer) - OPENSSL_free(buffer); - return(ret); - } - -ECPKPARAMETERS *ec_asn1_group2pkparameters(const EC_GROUP *group, +{ + int ok = 0; + size_t len = 0; + ECPARAMETERS *ret = NULL; + BIGNUM *tmp = NULL; + unsigned char *buffer = NULL; + const EC_POINT *point = NULL; + point_conversion_form_t form; + + if ((tmp = BN_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (param == NULL) { + if ((ret = ECPARAMETERS_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); + goto err; + } + } else + ret = param; + + /* set the version (always one) */ + ret->version = (long)0x1; + + /* set the fieldID */ + if (!ec_asn1_group2fieldid(group, ret->fieldID)) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); + goto err; + } + + /* set the curve */ + if (!ec_asn1_group2curve(group, ret->curve)) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); + goto err; + } + + /* set the base point */ + if ((point = EC_GROUP_get0_generator(group)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, EC_R_UNDEFINED_GENERATOR); + goto err; + } + + form = EC_GROUP_get_point_conversion_form(group); + + len = EC_POINT_point2oct(group, point, form, NULL, len, NULL); + if (len == 0) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); + goto err; + } + if ((buffer = OPENSSL_malloc(len)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); + goto err; + } + if (!EC_POINT_point2oct(group, point, form, buffer, len, NULL)) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); + goto err; + } + if (ret->base == NULL && (ret->base = ASN1_OCTET_STRING_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); + goto err; + } + if (!ASN1_OCTET_STRING_set(ret->base, buffer, len)) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB); + goto err; + } + + /* set the order */ + if (!EC_GROUP_get_order(group, tmp, NULL)) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); + goto err; + } + ret->order = BN_to_ASN1_INTEGER(tmp, ret->order); + if (ret->order == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB); + goto err; + } + + /* set the cofactor (optional) */ + if (EC_GROUP_get_cofactor(group, tmp, NULL)) { + ret->cofactor = BN_to_ASN1_INTEGER(tmp, ret->cofactor); + if (ret->cofactor == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB); + goto err; + } + } + + ok = 1; + + err:if (!ok) { + if (ret && !param) + ECPARAMETERS_free(ret); + ret = NULL; + } + if (tmp) + BN_free(tmp); + if (buffer) + OPENSSL_free(buffer); + return (ret); +} + +ECPKPARAMETERS *ec_asn1_group2pkparameters(const EC_GROUP *group, ECPKPARAMETERS *params) - { - int ok = 1, tmp; - ECPKPARAMETERS *ret = params; - - if (ret == NULL) - { - if ((ret = ECPKPARAMETERS_new()) == NULL) - { - ECerr(EC_F_EC_ASN1_GROUP2PKPARAMETERS, - ERR_R_MALLOC_FAILURE); - return NULL; - } - } - else - { - if (ret->type == 0 && ret->value.named_curve) - ASN1_OBJECT_free(ret->value.named_curve); - else if (ret->type == 1 && ret->value.parameters) - ECPARAMETERS_free(ret->value.parameters); - } - - if (EC_GROUP_get_asn1_flag(group)) - { - /* use the asn1 OID to describe the - * the elliptic curve parameters - */ - tmp = EC_GROUP_get_curve_name(group); - if (tmp) - { - ret->type = 0; - if ((ret->value.named_curve = OBJ_nid2obj(tmp)) == NULL) - ok = 0; - } - else - /* we don't kmow the nid => ERROR */ - ok = 0; - } - else - { - /* use the ECPARAMETERS structure */ - ret->type = 1; - if ((ret->value.parameters = ec_asn1_group2parameters( - group, NULL)) == NULL) - ok = 0; - } - - if (!ok) - { - ECPKPARAMETERS_free(ret); - return NULL; - } - return ret; - } +{ + int ok = 1, tmp; + ECPKPARAMETERS *ret = params; + + if (ret == NULL) { + if ((ret = ECPKPARAMETERS_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PKPARAMETERS, ERR_R_MALLOC_FAILURE); + return NULL; + } + } else { + if (ret->type == 0 && ret->value.named_curve) + ASN1_OBJECT_free(ret->value.named_curve); + else if (ret->type == 1 && ret->value.parameters) + ECPARAMETERS_free(ret->value.parameters); + } + + if (EC_GROUP_get_asn1_flag(group)) { + /* + * use the asn1 OID to describe the the elliptic curve parameters + */ + tmp = EC_GROUP_get_curve_name(group); + if (tmp) { + ret->type = 0; + if ((ret->value.named_curve = OBJ_nid2obj(tmp)) == NULL) + ok = 0; + } else + /* we don't kmow the nid => ERROR */ + ok = 0; + } else { + /* use the ECPARAMETERS structure */ + ret->type = 1; + if ((ret->value.parameters = + ec_asn1_group2parameters(group, NULL)) == NULL) + ok = 0; + } + + if (!ok) { + ECPKPARAMETERS_free(ret); + return NULL; + } + return ret; +} static EC_GROUP *ec_asn1_parameters2group(const ECPARAMETERS *params) - { - int ok = 0, tmp; - EC_GROUP *ret = NULL; - BIGNUM *p = NULL, *a = NULL, *b = NULL; - EC_POINT *point=NULL; - long field_bits; - - if (!params->fieldID || !params->fieldID->fieldType || - !params->fieldID->p.ptr) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); - goto err; - } - - /* now extract the curve parameters a and b */ - if (!params->curve || !params->curve->a || - !params->curve->a->data || !params->curve->b || - !params->curve->b->data) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); - goto err; - } - a = BN_bin2bn(params->curve->a->data, params->curve->a->length, NULL); - if (a == NULL) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_BN_LIB); - goto err; - } - b = BN_bin2bn(params->curve->b->data, params->curve->b->length, NULL); - if (b == NULL) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_BN_LIB); - goto err; - } - - /* get the field parameters */ - tmp = OBJ_obj2nid(params->fieldID->fieldType); - if (tmp == NID_X9_62_characteristic_two_field) +{ + int ok = 0, tmp; + EC_GROUP *ret = NULL; + BIGNUM *p = NULL, *a = NULL, *b = NULL; + EC_POINT *point = NULL; + long field_bits; + + if (!params->fieldID || !params->fieldID->fieldType || + !params->fieldID->p.ptr) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + + /* now extract the curve parameters a and b */ + if (!params->curve || !params->curve->a || + !params->curve->a->data || !params->curve->b || + !params->curve->b->data) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + a = BN_bin2bn(params->curve->a->data, params->curve->a->length, NULL); + if (a == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_BN_LIB); + goto err; + } + b = BN_bin2bn(params->curve->b->data, params->curve->b->length, NULL); + if (b == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_BN_LIB); + goto err; + } + + /* get the field parameters */ + tmp = OBJ_obj2nid(params->fieldID->fieldType); + if (tmp == NID_X9_62_characteristic_two_field) #ifdef OPENSSL_NO_EC2M - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_GF2M_NOT_SUPPORTED); - goto err; - } + { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_GF2M_NOT_SUPPORTED); + goto err; + } #else - { - X9_62_CHARACTERISTIC_TWO *char_two; - - char_two = params->fieldID->p.char_two; - - field_bits = char_two->m; - if (field_bits > OPENSSL_ECC_MAX_FIELD_BITS) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_FIELD_TOO_LARGE); - goto err; - } - - if ((p = BN_new()) == NULL) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_MALLOC_FAILURE); - goto err; - } - - /* get the base type */ - tmp = OBJ_obj2nid(char_two->type); - - if (tmp == NID_X9_62_tpBasis) - { - long tmp_long; - - if (!char_two->p.tpBasis) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); - goto err; - } - - tmp_long = ASN1_INTEGER_get(char_two->p.tpBasis); - - if (!(char_two->m > tmp_long && tmp_long > 0)) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_TRINOMIAL_BASIS); - goto err; - } - - /* create the polynomial */ - if (!BN_set_bit(p, (int)char_two->m)) - goto err; - if (!BN_set_bit(p, (int)tmp_long)) - goto err; - if (!BN_set_bit(p, 0)) - goto err; - } - else if (tmp == NID_X9_62_ppBasis) - { - X9_62_PENTANOMIAL *penta; - - penta = char_two->p.ppBasis; - if (!penta) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); - goto err; - } - - if (!(char_two->m > penta->k3 && penta->k3 > penta->k2 && penta->k2 > penta->k1 && penta->k1 > 0)) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_PENTANOMIAL_BASIS); - goto err; - } - - /* create the polynomial */ - if (!BN_set_bit(p, (int)char_two->m)) goto err; - if (!BN_set_bit(p, (int)penta->k1)) goto err; - if (!BN_set_bit(p, (int)penta->k2)) goto err; - if (!BN_set_bit(p, (int)penta->k3)) goto err; - if (!BN_set_bit(p, 0)) goto err; - } - else if (tmp == NID_X9_62_onBasis) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_NOT_IMPLEMENTED); - goto err; - } - else /* error */ - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); - goto err; - } - - /* create the EC_GROUP structure */ - ret = EC_GROUP_new_curve_GF2m(p, a, b, NULL); - } + { + X9_62_CHARACTERISTIC_TWO *char_two; + + char_two = params->fieldID->p.char_two; + + field_bits = char_two->m; + if (field_bits > OPENSSL_ECC_MAX_FIELD_BITS) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_FIELD_TOO_LARGE); + goto err; + } + + if ((p = BN_new()) == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_MALLOC_FAILURE); + goto err; + } + + /* get the base type */ + tmp = OBJ_obj2nid(char_two->type); + + if (tmp == NID_X9_62_tpBasis) { + long tmp_long; + + if (!char_two->p.tpBasis) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + + tmp_long = ASN1_INTEGER_get(char_two->p.tpBasis); + + if (!(char_two->m > tmp_long && tmp_long > 0)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, + EC_R_INVALID_TRINOMIAL_BASIS); + goto err; + } + + /* create the polynomial */ + if (!BN_set_bit(p, (int)char_two->m)) + goto err; + if (!BN_set_bit(p, (int)tmp_long)) + goto err; + if (!BN_set_bit(p, 0)) + goto err; + } else if (tmp == NID_X9_62_ppBasis) { + X9_62_PENTANOMIAL *penta; + + penta = char_two->p.ppBasis; + if (!penta) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + + if (! + (char_two->m > penta->k3 && penta->k3 > penta->k2 + && penta->k2 > penta->k1 && penta->k1 > 0)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, + EC_R_INVALID_PENTANOMIAL_BASIS); + goto err; + } + + /* create the polynomial */ + if (!BN_set_bit(p, (int)char_two->m)) + goto err; + if (!BN_set_bit(p, (int)penta->k1)) + goto err; + if (!BN_set_bit(p, (int)penta->k2)) + goto err; + if (!BN_set_bit(p, (int)penta->k3)) + goto err; + if (!BN_set_bit(p, 0)) + goto err; + } else if (tmp == NID_X9_62_onBasis) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_NOT_IMPLEMENTED); + goto err; + } else { /* error */ + + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + + /* create the EC_GROUP structure */ + ret = EC_GROUP_new_curve_GF2m(p, a, b, NULL); + } #endif - else if (tmp == NID_X9_62_prime_field) - { - /* we have a curve over a prime field */ - /* extract the prime number */ - if (!params->fieldID->p.prime) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); - goto err; - } - p = ASN1_INTEGER_to_BN(params->fieldID->p.prime, NULL); - if (p == NULL) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB); - goto err; - } - - if (BN_is_negative(p) || BN_is_zero(p)) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_FIELD); - goto err; - } - - field_bits = BN_num_bits(p); - if (field_bits > OPENSSL_ECC_MAX_FIELD_BITS) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_FIELD_TOO_LARGE); - goto err; - } - - /* create the EC_GROUP structure */ - ret = EC_GROUP_new_curve_GFp(p, a, b, NULL); - } - else - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_FIELD); - goto err; - } - - if (ret == NULL) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB); - goto err; - } - - /* extract seed (optional) */ - if (params->curve->seed != NULL) - { - if (ret->seed != NULL) - OPENSSL_free(ret->seed); - if (!(ret->seed = OPENSSL_malloc(params->curve->seed->length))) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, - ERR_R_MALLOC_FAILURE); - goto err; - } - memcpy(ret->seed, params->curve->seed->data, - params->curve->seed->length); - ret->seed_len = params->curve->seed->length; - } - - if (!params->order || !params->base || !params->base->data) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); - goto err; - } - - if ((point = EC_POINT_new(ret)) == NULL) goto err; - - /* set the point conversion form */ - EC_GROUP_set_point_conversion_form(ret, (point_conversion_form_t) - (params->base->data[0] & ~0x01)); - - /* extract the ec point */ - if (!EC_POINT_oct2point(ret, point, params->base->data, - params->base->length, NULL)) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB); - goto err; - } - - /* extract the order */ - if ((a = ASN1_INTEGER_to_BN(params->order, a)) == NULL) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB); - goto err; - } - if (BN_is_negative(a) || BN_is_zero(a)) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_GROUP_ORDER); - goto err; - } - if (BN_num_bits(a) > (int)field_bits + 1) /* Hasse bound */ - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_GROUP_ORDER); - goto err; - } - - /* extract the cofactor (optional) */ - if (params->cofactor == NULL) - { - if (b) - { - BN_free(b); - b = NULL; - } - } - else - if ((b = ASN1_INTEGER_to_BN(params->cofactor, b)) == NULL) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB); - goto err; - } - /* set the generator, order and cofactor (if present) */ - if (!EC_GROUP_set_generator(ret, point, a, b)) - { - ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB); - goto err; - } - - ok = 1; - -err: if (!ok) - { - if (ret) - EC_GROUP_clear_free(ret); - ret = NULL; - } - - if (p) - BN_free(p); - if (a) - BN_free(a); - if (b) - BN_free(b); - if (point) - EC_POINT_free(point); - return(ret); + else if (tmp == NID_X9_62_prime_field) { + /* we have a curve over a prime field */ + /* extract the prime number */ + if (!params->fieldID->p.prime) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + p = ASN1_INTEGER_to_BN(params->fieldID->p.prime, NULL); + if (p == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB); + goto err; + } + + if (BN_is_negative(p) || BN_is_zero(p)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_FIELD); + goto err; + } + + field_bits = BN_num_bits(p); + if (field_bits > OPENSSL_ECC_MAX_FIELD_BITS) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_FIELD_TOO_LARGE); + goto err; + } + + /* create the EC_GROUP structure */ + ret = EC_GROUP_new_curve_GFp(p, a, b, NULL); + } else { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_FIELD); + goto err; + } + + if (ret == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB); + goto err; + } + + /* extract seed (optional) */ + if (params->curve->seed != NULL) { + if (ret->seed != NULL) + OPENSSL_free(ret->seed); + if (!(ret->seed = OPENSSL_malloc(params->curve->seed->length))) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_MALLOC_FAILURE); + goto err; + } + memcpy(ret->seed, params->curve->seed->data, + params->curve->seed->length); + ret->seed_len = params->curve->seed->length; + } + + if (!params->order || !params->base || !params->base->data) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + + if ((point = EC_POINT_new(ret)) == NULL) + goto err; + + /* set the point conversion form */ + EC_GROUP_set_point_conversion_form(ret, (point_conversion_form_t) + (params->base->data[0] & ~0x01)); + + /* extract the ec point */ + if (!EC_POINT_oct2point(ret, point, params->base->data, + params->base->length, NULL)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB); + goto err; + } + + /* extract the order */ + if ((a = ASN1_INTEGER_to_BN(params->order, a)) == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB); + goto err; + } + if (BN_is_negative(a) || BN_is_zero(a)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_GROUP_ORDER); + goto err; + } + if (BN_num_bits(a) > (int)field_bits + 1) { /* Hasse bound */ + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_GROUP_ORDER); + goto err; + } + + /* extract the cofactor (optional) */ + if (params->cofactor == NULL) { + if (b) { + BN_free(b); + b = NULL; + } + } else if ((b = ASN1_INTEGER_to_BN(params->cofactor, b)) == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB); + goto err; + } + /* set the generator, order and cofactor (if present) */ + if (!EC_GROUP_set_generator(ret, point, a, b)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB); + goto err; + } + + ok = 1; + + err:if (!ok) { + if (ret) + EC_GROUP_clear_free(ret); + ret = NULL; + } + + if (p) + BN_free(p); + if (a) + BN_free(a); + if (b) + BN_free(b); + if (point) + EC_POINT_free(point); + return (ret); } EC_GROUP *ec_asn1_pkparameters2group(const ECPKPARAMETERS *params) - { - EC_GROUP *ret=NULL; - int tmp=0; - - if (params == NULL) - { - ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, - EC_R_MISSING_PARAMETERS); - return NULL; - } - - if (params->type == 0) - { /* the curve is given by an OID */ - tmp = OBJ_obj2nid(params->value.named_curve); - if ((ret = EC_GROUP_new_by_curve_name(tmp)) == NULL) - { - ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, - EC_R_EC_GROUP_NEW_BY_NAME_FAILURE); - return NULL; - } - EC_GROUP_set_asn1_flag(ret, OPENSSL_EC_NAMED_CURVE); - } - else if (params->type == 1) - { /* the parameters are given by a ECPARAMETERS - * structure */ - ret = ec_asn1_parameters2group(params->value.parameters); - if (!ret) - { - ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, ERR_R_EC_LIB); - return NULL; - } - EC_GROUP_set_asn1_flag(ret, 0x0); - } - else if (params->type == 2) - { /* implicitlyCA */ - return NULL; - } - else - { - ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, EC_R_ASN1_ERROR); - return NULL; - } - - return ret; - } +{ + EC_GROUP *ret = NULL; + int tmp = 0; + + if (params == NULL) { + ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, EC_R_MISSING_PARAMETERS); + return NULL; + } + + if (params->type == 0) { /* the curve is given by an OID */ + tmp = OBJ_obj2nid(params->value.named_curve); + if ((ret = EC_GROUP_new_by_curve_name(tmp)) == NULL) { + ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, + EC_R_EC_GROUP_NEW_BY_NAME_FAILURE); + return NULL; + } + EC_GROUP_set_asn1_flag(ret, OPENSSL_EC_NAMED_CURVE); + } else if (params->type == 1) { /* the parameters are given by a + * ECPARAMETERS structure */ + ret = ec_asn1_parameters2group(params->value.parameters); + if (!ret) { + ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, ERR_R_EC_LIB); + return NULL; + } + EC_GROUP_set_asn1_flag(ret, 0x0); + } else if (params->type == 2) { /* implicitlyCA */ + return NULL; + } else { + ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, EC_R_ASN1_ERROR); + return NULL; + } + + return ret; +} /* EC_GROUP <-> DER encoding of ECPKPARAMETERS */ EC_GROUP *d2i_ECPKParameters(EC_GROUP **a, const unsigned char **in, long len) - { - EC_GROUP *group = NULL; - ECPKPARAMETERS *params = NULL; - - if ((params = d2i_ECPKPARAMETERS(NULL, in, len)) == NULL) - { - ECerr(EC_F_D2I_ECPKPARAMETERS, EC_R_D2I_ECPKPARAMETERS_FAILURE); - ECPKPARAMETERS_free(params); - return NULL; - } - - if ((group = ec_asn1_pkparameters2group(params)) == NULL) - { - ECerr(EC_F_D2I_ECPKPARAMETERS, EC_R_PKPARAMETERS2GROUP_FAILURE); - ECPKPARAMETERS_free(params); - return NULL; - } - - - if (a && *a) - EC_GROUP_clear_free(*a); - if (a) - *a = group; - - ECPKPARAMETERS_free(params); - return(group); - } +{ + EC_GROUP *group = NULL; + ECPKPARAMETERS *params = NULL; + + if ((params = d2i_ECPKPARAMETERS(NULL, in, len)) == NULL) { + ECerr(EC_F_D2I_ECPKPARAMETERS, EC_R_D2I_ECPKPARAMETERS_FAILURE); + ECPKPARAMETERS_free(params); + return NULL; + } + + if ((group = ec_asn1_pkparameters2group(params)) == NULL) { + ECerr(EC_F_D2I_ECPKPARAMETERS, EC_R_PKPARAMETERS2GROUP_FAILURE); + ECPKPARAMETERS_free(params); + return NULL; + } + + if (a && *a) + EC_GROUP_clear_free(*a); + if (a) + *a = group; + + ECPKPARAMETERS_free(params); + return (group); +} int i2d_ECPKParameters(const EC_GROUP *a, unsigned char **out) - { - int ret=0; - ECPKPARAMETERS *tmp = ec_asn1_group2pkparameters(a, NULL); - if (tmp == NULL) - { - ECerr(EC_F_I2D_ECPKPARAMETERS, EC_R_GROUP2PKPARAMETERS_FAILURE); - return 0; - } - if ((ret = i2d_ECPKPARAMETERS(tmp, out)) == 0) - { - ECerr(EC_F_I2D_ECPKPARAMETERS, EC_R_I2D_ECPKPARAMETERS_FAILURE); - ECPKPARAMETERS_free(tmp); - return 0; - } - ECPKPARAMETERS_free(tmp); - return(ret); - } +{ + int ret = 0; + ECPKPARAMETERS *tmp = ec_asn1_group2pkparameters(a, NULL); + if (tmp == NULL) { + ECerr(EC_F_I2D_ECPKPARAMETERS, EC_R_GROUP2PKPARAMETERS_FAILURE); + return 0; + } + if ((ret = i2d_ECPKPARAMETERS(tmp, out)) == 0) { + ECerr(EC_F_I2D_ECPKPARAMETERS, EC_R_I2D_ECPKPARAMETERS_FAILURE); + ECPKPARAMETERS_free(tmp); + return 0; + } + ECPKPARAMETERS_free(tmp); + return (ret); +} /* some EC_KEY functions */ EC_KEY *d2i_ECPrivateKey(EC_KEY **a, const unsigned char **in, long len) - { - int ok=0; - EC_KEY *ret=NULL; - EC_PRIVATEKEY *priv_key=NULL; - - if ((priv_key = EC_PRIVATEKEY_new()) == NULL) - { - ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); - return NULL; - } - - if ((priv_key = d2i_EC_PRIVATEKEY(&priv_key, in, len)) == NULL) - { - ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); - EC_PRIVATEKEY_free(priv_key); - return NULL; - } - - if (a == NULL || *a == NULL) - { - if ((ret = EC_KEY_new()) == NULL) - { - ECerr(EC_F_D2I_ECPRIVATEKEY, - ERR_R_MALLOC_FAILURE); - goto err; - } - if (a) - *a = ret; - } - else - ret = *a; - - if (priv_key->parameters) - { - if (ret->group) - EC_GROUP_clear_free(ret->group); - ret->group = ec_asn1_pkparameters2group(priv_key->parameters); - } - - if (ret->group == NULL) - { - ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); - goto err; - } - - ret->version = priv_key->version; - - if (priv_key->privateKey) - { - ret->priv_key = BN_bin2bn( - M_ASN1_STRING_data(priv_key->privateKey), - M_ASN1_STRING_length(priv_key->privateKey), - ret->priv_key); - if (ret->priv_key == NULL) - { - ECerr(EC_F_D2I_ECPRIVATEKEY, - ERR_R_BN_LIB); - goto err; - } - } - else - { - ECerr(EC_F_D2I_ECPRIVATEKEY, - EC_R_MISSING_PRIVATE_KEY); - goto err; - } - - if (ret->pub_key) - EC_POINT_clear_free(ret->pub_key); - ret->pub_key = EC_POINT_new(ret->group); - if (ret->pub_key == NULL) - { - ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); - goto err; - } - - if (priv_key->publicKey) - { - const unsigned char *pub_oct; - int pub_oct_len; - - pub_oct = M_ASN1_STRING_data(priv_key->publicKey); - pub_oct_len = M_ASN1_STRING_length(priv_key->publicKey); - /* The first byte - point conversion form - must be present. */ - if (pub_oct_len <= 0) - { - ECerr(EC_F_D2I_ECPRIVATEKEY, EC_R_BUFFER_TOO_SMALL); - goto err; - } - /* Save the point conversion form. */ - ret->conv_form = (point_conversion_form_t)(pub_oct[0] & ~0x01); - if (!EC_POINT_oct2point(ret->group, ret->pub_key, - pub_oct, (size_t)(pub_oct_len), NULL)) - { - ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); - goto err; - } - } - else - { - if (!EC_POINT_mul(ret->group, ret->pub_key, ret->priv_key, NULL, NULL, NULL)) - { - ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); - goto err; - } - /* Remember the original private-key-only encoding. */ - ret->enc_flag |= EC_PKEY_NO_PUBKEY; - } - - ok = 1; -err: - if (!ok) - { - if (ret) - EC_KEY_free(ret); - ret = NULL; - } - - if (priv_key) - EC_PRIVATEKEY_free(priv_key); - - return(ret); - } - -int i2d_ECPrivateKey(EC_KEY *a, unsigned char **out) - { - int ret=0, ok=0; - unsigned char *buffer=NULL; - size_t buf_len=0, tmp_len; - EC_PRIVATEKEY *priv_key=NULL; - - if (a == NULL || a->group == NULL || a->priv_key == NULL || - (!(a->enc_flag & EC_PKEY_NO_PUBKEY) && a->pub_key == NULL)) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, - ERR_R_PASSED_NULL_PARAMETER); - goto err; - } - - if ((priv_key = EC_PRIVATEKEY_new()) == NULL) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, - ERR_R_MALLOC_FAILURE); - goto err; - } - - priv_key->version = a->version; - - buf_len = (size_t)BN_num_bytes(a->priv_key); - buffer = OPENSSL_malloc(buf_len); - if (buffer == NULL) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, - ERR_R_MALLOC_FAILURE); - goto err; - } - - if (!BN_bn2bin(a->priv_key, buffer)) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_BN_LIB); - goto err; - } - - if (!M_ASN1_OCTET_STRING_set(priv_key->privateKey, buffer, buf_len)) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_ASN1_LIB); - goto err; - } - - if (!(a->enc_flag & EC_PKEY_NO_PARAMETERS)) - { - if ((priv_key->parameters = ec_asn1_group2pkparameters( - a->group, priv_key->parameters)) == NULL) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB); - goto err; - } - } - - if (!(a->enc_flag & EC_PKEY_NO_PUBKEY)) - { - priv_key->publicKey = M_ASN1_BIT_STRING_new(); - if (priv_key->publicKey == NULL) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, - ERR_R_MALLOC_FAILURE); - goto err; - } - - tmp_len = EC_POINT_point2oct(a->group, a->pub_key, - a->conv_form, NULL, 0, NULL); - - if (tmp_len > buf_len) - { - unsigned char *tmp_buffer = OPENSSL_realloc(buffer, tmp_len); - if (!tmp_buffer) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); - goto err; - } - buffer = tmp_buffer; - buf_len = tmp_len; - } - - if (!EC_POINT_point2oct(a->group, a->pub_key, - a->conv_form, buffer, buf_len, NULL)) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB); - goto err; - } - - priv_key->publicKey->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); - priv_key->publicKey->flags |= ASN1_STRING_FLAG_BITS_LEFT; - if (!M_ASN1_BIT_STRING_set(priv_key->publicKey, buffer, - buf_len)) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_ASN1_LIB); - goto err; - } - } - - if ((ret = i2d_EC_PRIVATEKEY(priv_key, out)) == 0) - { - ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB); - goto err; - } - ok=1; -err: - if (buffer) - OPENSSL_free(buffer); - if (priv_key) - EC_PRIVATEKEY_free(priv_key); - return(ok?ret:0); - } +{ + int ok = 0; + EC_KEY *ret = NULL; + EC_PRIVATEKEY *priv_key = NULL; + + if ((priv_key = d2i_EC_PRIVATEKEY(NULL, in, len)) == NULL) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); + return NULL; + } + + if (a == NULL || *a == NULL) { + if ((ret = EC_KEY_new()) == NULL) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + } else + ret = *a; + + if (priv_key->parameters) { + if (ret->group) + EC_GROUP_clear_free(ret->group); + ret->group = ec_asn1_pkparameters2group(priv_key->parameters); + } + + if (ret->group == NULL) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + + ret->version = priv_key->version; + + if (priv_key->privateKey) { + ret->priv_key = BN_bin2bn(M_ASN1_STRING_data(priv_key->privateKey), + M_ASN1_STRING_length(priv_key->privateKey), + ret->priv_key); + if (ret->priv_key == NULL) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_BN_LIB); + goto err; + } + } else { + ECerr(EC_F_D2I_ECPRIVATEKEY, EC_R_MISSING_PRIVATE_KEY); + goto err; + } + + if (ret->pub_key) + EC_POINT_clear_free(ret->pub_key); + ret->pub_key = EC_POINT_new(ret->group); + if (ret->pub_key == NULL) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + + if (priv_key->publicKey) { + const unsigned char *pub_oct; + int pub_oct_len; + + pub_oct = M_ASN1_STRING_data(priv_key->publicKey); + pub_oct_len = M_ASN1_STRING_length(priv_key->publicKey); + /* + * The first byte - point conversion form - must be present. + */ + if (pub_oct_len <= 0) { + ECerr(EC_F_D2I_ECPRIVATEKEY, EC_R_BUFFER_TOO_SMALL); + goto err; + } + /* Save the point conversion form. */ + ret->conv_form = (point_conversion_form_t) (pub_oct[0] & ~0x01); + if (!EC_POINT_oct2point(ret->group, ret->pub_key, + pub_oct, (size_t)(pub_oct_len), NULL)) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + } else { + if (!EC_POINT_mul + (ret->group, ret->pub_key, ret->priv_key, NULL, NULL, NULL)) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + /* Remember the original private-key-only encoding. */ + ret->enc_flag |= EC_PKEY_NO_PUBKEY; + } + + if (a) + *a = ret; + ok = 1; + err: + if (!ok) { + if (ret && (a == NULL || *a != ret)) + EC_KEY_free(ret); + ret = NULL; + } + + if (priv_key) + EC_PRIVATEKEY_free(priv_key); + + return (ret); +} + +int i2d_ECPrivateKey(EC_KEY *a, unsigned char **out) +{ + int ret = 0, ok = 0; + unsigned char *buffer = NULL; + size_t buf_len = 0, tmp_len; + EC_PRIVATEKEY *priv_key = NULL; + + if (a == NULL || a->group == NULL || a->priv_key == NULL || + (!(a->enc_flag & EC_PKEY_NO_PUBKEY) && a->pub_key == NULL)) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER); + goto err; + } + + if ((priv_key = EC_PRIVATEKEY_new()) == NULL) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + + priv_key->version = a->version; + + buf_len = (size_t)BN_num_bytes(a->priv_key); + buffer = OPENSSL_malloc(buf_len); + if (buffer == NULL) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!BN_bn2bin(a->priv_key, buffer)) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_BN_LIB); + goto err; + } + + if (!M_ASN1_OCTET_STRING_set(priv_key->privateKey, buffer, buf_len)) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_ASN1_LIB); + goto err; + } + + if (!(a->enc_flag & EC_PKEY_NO_PARAMETERS)) { + if ((priv_key->parameters = + ec_asn1_group2pkparameters(a->group, + priv_key->parameters)) == NULL) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + } + + if (!(a->enc_flag & EC_PKEY_NO_PUBKEY)) { + priv_key->publicKey = M_ASN1_BIT_STRING_new(); + if (priv_key->publicKey == NULL) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + + tmp_len = EC_POINT_point2oct(a->group, a->pub_key, + a->conv_form, NULL, 0, NULL); + + if (tmp_len > buf_len) { + unsigned char *tmp_buffer = OPENSSL_realloc(buffer, tmp_len); + if (!tmp_buffer) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + buffer = tmp_buffer; + buf_len = tmp_len; + } + + if (!EC_POINT_point2oct(a->group, a->pub_key, + a->conv_form, buffer, buf_len, NULL)) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + + priv_key->publicKey->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); + priv_key->publicKey->flags |= ASN1_STRING_FLAG_BITS_LEFT; + if (!M_ASN1_BIT_STRING_set(priv_key->publicKey, buffer, buf_len)) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_ASN1_LIB); + goto err; + } + } + + if ((ret = i2d_EC_PRIVATEKEY(priv_key, out)) == 0) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + ok = 1; + err: + if (buffer) + OPENSSL_free(buffer); + if (priv_key) + EC_PRIVATEKEY_free(priv_key); + return (ok ? ret : 0); +} int i2d_ECParameters(EC_KEY *a, unsigned char **out) - { - if (a == NULL) - { - ECerr(EC_F_I2D_ECPARAMETERS, ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - return i2d_ECPKParameters(a->group, out); - } +{ + if (a == NULL) { + ECerr(EC_F_I2D_ECPARAMETERS, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + return i2d_ECPKParameters(a->group, out); +} EC_KEY *d2i_ECParameters(EC_KEY **a, const unsigned char **in, long len) - { - EC_KEY *ret; - - if (in == NULL || *in == NULL) - { - ECerr(EC_F_D2I_ECPARAMETERS, ERR_R_PASSED_NULL_PARAMETER); - return NULL; - } - - if (a == NULL || *a == NULL) - { - if ((ret = EC_KEY_new()) == NULL) - { - ECerr(EC_F_D2I_ECPARAMETERS, ERR_R_MALLOC_FAILURE); - return NULL; - } - if (a) - *a = ret; - } - else - ret = *a; - - if (!d2i_ECPKParameters(&ret->group, in, len)) - { - ECerr(EC_F_D2I_ECPARAMETERS, ERR_R_EC_LIB); - return NULL; - } - - return ret; - } +{ + EC_KEY *ret; + + if (in == NULL || *in == NULL) { + ECerr(EC_F_D2I_ECPARAMETERS, ERR_R_PASSED_NULL_PARAMETER); + return NULL; + } + + if (a == NULL || *a == NULL) { + if ((ret = EC_KEY_new()) == NULL) { + ECerr(EC_F_D2I_ECPARAMETERS, ERR_R_MALLOC_FAILURE); + return NULL; + } + } else + ret = *a; + + if (!d2i_ECPKParameters(&ret->group, in, len)) { + ECerr(EC_F_D2I_ECPARAMETERS, ERR_R_EC_LIB); + if (a == NULL || *a != ret) + EC_KEY_free(ret); + return NULL; + } + + if (a) + *a = ret; + + return ret; +} EC_KEY *o2i_ECPublicKey(EC_KEY **a, const unsigned char **in, long len) - { - EC_KEY *ret=NULL; - - if (a == NULL || (*a) == NULL || (*a)->group == NULL) - { - /* sorry, but a EC_GROUP-structur is necessary - * to set the public key */ - ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - ret = *a; - if (ret->pub_key == NULL && - (ret->pub_key = EC_POINT_new(ret->group)) == NULL) - { - ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_MALLOC_FAILURE); - return 0; - } - if (!EC_POINT_oct2point(ret->group, ret->pub_key, *in, len, NULL)) - { - ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_EC_LIB); - return 0; - } - /* save the point conversion form */ - ret->conv_form = (point_conversion_form_t)(*in[0] & ~0x01); - *in += len; - return ret; - } +{ + EC_KEY *ret = NULL; + + if (a == NULL || (*a) == NULL || (*a)->group == NULL) { + /* + * sorry, but a EC_GROUP-structur is necessary to set the public key + */ + ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + ret = *a; + if (ret->pub_key == NULL && + (ret->pub_key = EC_POINT_new(ret->group)) == NULL) { + ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_MALLOC_FAILURE); + return 0; + } + if (!EC_POINT_oct2point(ret->group, ret->pub_key, *in, len, NULL)) { + ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_EC_LIB); + return 0; + } + /* save the point conversion form */ + ret->conv_form = (point_conversion_form_t) (*in[0] & ~0x01); + *in += len; + return ret; +} int i2o_ECPublicKey(EC_KEY *a, unsigned char **out) - { - size_t buf_len=0; - int new_buffer = 0; - - if (a == NULL) - { - ECerr(EC_F_I2O_ECPUBLICKEY, ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - - buf_len = EC_POINT_point2oct(a->group, a->pub_key, - a->conv_form, NULL, 0, NULL); - - if (out == NULL || buf_len == 0) - /* out == NULL => just return the length of the octet string */ - return buf_len; - - if (*out == NULL) - { - if ((*out = OPENSSL_malloc(buf_len)) == NULL) - { - ECerr(EC_F_I2O_ECPUBLICKEY, ERR_R_MALLOC_FAILURE); - return 0; - } - new_buffer = 1; - } - if (!EC_POINT_point2oct(a->group, a->pub_key, a->conv_form, - *out, buf_len, NULL)) - { - ECerr(EC_F_I2O_ECPUBLICKEY, ERR_R_EC_LIB); - if (new_buffer) - { - OPENSSL_free(*out); - *out = NULL; - } - return 0; - } - if (!new_buffer) - *out += buf_len; - return buf_len; - } +{ + size_t buf_len = 0; + int new_buffer = 0; + + if (a == NULL) { + ECerr(EC_F_I2O_ECPUBLICKEY, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + + buf_len = EC_POINT_point2oct(a->group, a->pub_key, + a->conv_form, NULL, 0, NULL); + + if (out == NULL || buf_len == 0) + /* out == NULL => just return the length of the octet string */ + return buf_len; + + if (*out == NULL) { + if ((*out = OPENSSL_malloc(buf_len)) == NULL) { + ECerr(EC_F_I2O_ECPUBLICKEY, ERR_R_MALLOC_FAILURE); + return 0; + } + new_buffer = 1; + } + if (!EC_POINT_point2oct(a->group, a->pub_key, a->conv_form, + *out, buf_len, NULL)) { + ECerr(EC_F_I2O_ECPUBLICKEY, ERR_R_EC_LIB); + if (new_buffer) { + OPENSSL_free(*out); + *out = NULL; + } + return 0; + } + if (!new_buffer) + *out += buf_len; + return buf_len; +} |