Index: openssl/crypto/ec/ec_asn1.c |
diff --git a/openssl/crypto/ec/ec_asn1.c b/openssl/crypto/ec/ec_asn1.c |
deleted file mode 100644 |
index e8e54489b59d9b8414190d64283406917b0df1d1..0000000000000000000000000000000000000000 |
--- a/openssl/crypto/ec/ec_asn1.c |
+++ /dev/null |
@@ -1,1446 +0,0 @@ |
-/* crypto/ec/ec_asn1.c */ |
-/* |
- * Written by Nils Larsch for the OpenSSL project. |
- */ |
-/* ==================================================================== |
- * Copyright (c) 2000-2003 The OpenSSL Project. All rights reserved. |
- * |
- * Redistribution and use in source and binary forms, with or without |
- * modification, are permitted provided that the following conditions |
- * are met: |
- * |
- * 1. Redistributions of source code must retain the above copyright |
- * 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 |
- * the documentation and/or other materials provided with the |
- * distribution. |
- * |
- * 3. All advertising materials mentioning features or use of this |
- * software must display the following acknowledgment: |
- * "This product includes software developed by the OpenSSL Project |
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
- * |
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
- * endorse or promote products derived from this software without |
- * prior written permission. For written permission, please contact |
- * licensing@OpenSSL.org. |
- * |
- * 5. Products derived from this software may not be called "OpenSSL" |
- * nor may "OpenSSL" appear in their names without prior written |
- * permission of the OpenSSL Project. |
- * |
- * 6. Redistributions of any form whatsoever must retain the following |
- * acknowledgment: |
- * "This product includes software developed by the OpenSSL Project |
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
- * |
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
- * OF THE POSSIBILITY OF SUCH DAMAGE. |
- * ==================================================================== |
- * |
- * This product includes cryptographic software written by Eric Young |
- * (eay@cryptsoft.com). This product includes software written by Tim |
- * Hudson (tjh@cryptsoft.com). |
- * |
- */ |
- |
-#include <string.h> |
-#include "ec_lcl.h" |
-#include <openssl/err.h> |
-#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; |
- } |
-#ifndef OPENSSL_NO_EC2M |
-int EC_GROUP_get_trinomial_basis(const EC_GROUP *group, unsigned int *k) |
- { |
- if (group == NULL) |
- return 0; |
- |
- if (EC_GROUP_method_of(group)->group_set_curve != ec_GF2m_simple_group_set_curve |
- || !((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_GROUP_method_of(group)->group_set_curve != ec_GF2m_simple_group_set_curve |
- || !((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; |
- |
-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; |
- |
-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; |
- |
-typedef struct x9_62_curve_st { |
- 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; |
- |
-struct ecpk_parameters_st { |
- 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; |
- |
-/* 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_SEQUENCE_END(X9_62_PENTANOMIAL) |
- |
-DECLARE_ASN1_ALLOC_FUNCTIONS(X9_62_PENTANOMIAL) |
-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)) |
-} 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_SEQUENCE_END(X9_62_CHARACTERISTIC_TWO) |
- |
-DECLARE_ASN1_ALLOC_FUNCTIONS(X9_62_CHARACTERISTIC_TWO) |
-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)) |
-} 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_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_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_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_CHOICE_END(ECPKPARAMETERS) |
- |
-DECLARE_ASN1_FUNCTIONS_const(ECPKPARAMETERS) |
-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_SEQUENCE_END(EC_PRIVATEKEY) |
- |
-DECLARE_ASN1_FUNCTIONS_const(EC_PRIVATEKEY) |
-DECLARE_ASN1_ENCODE_FUNCTIONS_const(EC_PRIVATEKEY, EC_PRIVATEKEY) |
-IMPLEMENT_ASN1_FUNCTIONS_const(EC_PRIVATEKEY) |
- |
-/* some declarations of internal function */ |
- |
-/* 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 */ |
-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 *); |
- |
- |
-/* 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 */ |
-#ifdef OPENSSL_NO_EC2M |
- { |
- 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; |
- } |
- } |
- } |
-#endif |
- |
- ok = 1; |
- |
-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; |
- } |
- } |
-#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; |
- } |
- } |
-#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); |
- } |
- |
-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, |
- 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; |
- } |
- |
-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) |
-#ifdef OPENSSL_NO_EC2M |
- { |
- 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); |
- } |
-#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); |
-} |
- |
-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 <-> 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); |
- } |
- |
-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); |
- } |
- |
-/* 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 (priv_key->publicKey) |
- { |
- const unsigned char *pub_oct; |
- size_t pub_oct_len; |
- |
- 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; |
- } |
- pub_oct = M_ASN1_STRING_data(priv_key->publicKey); |
- pub_oct_len = M_ASN1_STRING_length(priv_key->publicKey); |
- /* 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, pub_oct_len, NULL)) |
- { |
- ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); |
- goto err; |
- } |
- } |
- |
- 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) |
- { |
- 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); |
- } |
- |
-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 *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; |
- } |
- |
-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; |
- } |