*
*/
-#include "ecdsa.h"
-#include "cryptlib.h"
-#include <openssl/asn1.h>
+#include "ecs_locl.h"
+#include <openssl/err.h>
#include <openssl/asn1t.h>
-typedef struct ecdsa_priv_key_st {
- int version;
- ECPKPARAMETERS *parameters;
- ASN1_OBJECT *named_curve;
- ASN1_OCTET_STRING *pub_key;
- BIGNUM *priv_key;
- } ECDSAPrivateKey;
-
ASN1_SEQUENCE(ECDSA_SIG) = {
ASN1_SIMPLE(ECDSA_SIG, r, CBIGNUM),
ASN1_SIMPLE(ECDSA_SIG, s, CBIGNUM)
DECLARE_ASN1_FUNCTIONS_const(ECDSA_SIG)
DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECDSA_SIG, ECDSA_SIG)
IMPLEMENT_ASN1_FUNCTIONS_const(ECDSA_SIG)
-
-ASN1_SEQUENCE(ECDSAPrivateKey) = {
- ASN1_SIMPLE(ECDSAPrivateKey, version, LONG),
- ASN1_SIMPLE(ECDSAPrivateKey, parameters, ECPKPARAMETERS),
- ASN1_SIMPLE(ECDSAPrivateKey, pub_key, ASN1_OCTET_STRING),
- ASN1_SIMPLE(ECDSAPrivateKey, priv_key, BIGNUM)
-} ASN1_SEQUENCE_END(ECDSAPrivateKey)
-
-DECLARE_ASN1_FUNCTIONS_const(ECDSAPrivateKey)
-DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECDSAPrivateKey, ecdsaPrivateKey)
-IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(ECDSAPrivateKey, ECDSAPrivateKey, ECDSAPrivateKey)
-IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(ECDSAPrivateKey, ECDSAPrivateKey, ecdsaPrivateKey)
-
-int i2d_ECDSAParameters(ECDSA *a, unsigned char **out)
- {
- if (a == NULL)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPARAMETERS,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- return i2d_ECPKParameters(a->group, out);
- }
-
-ECDSA *d2i_ECDSAParameters(ECDSA **a, const unsigned char **in, long len)
- {
- EC_GROUP *group;
- ECDSA *ret;
-
- if (in == NULL || *in == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS,
- ERR_R_PASSED_NULL_PARAMETER);
- return NULL;
- }
-
- group = d2i_ECPKParameters(NULL, in, len);
-
- if (group == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS,
- ERR_R_EC_LIB);
- return NULL;
- }
-
- if (a == NULL || *a == NULL)
- {
- if ((ret = ECDSA_new()) == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS,
- ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- if (a)
- *a = ret;
- }
- else
- ret = *a;
-
- if (ret->group)
- EC_GROUP_clear_free(ret->group);
-
- ret->group = group;
-
- return ret;
- }
-
-ECDSA *d2i_ECDSAPrivateKey(ECDSA **a, const unsigned char **in, long len)
- {
- int ok=0;
- ECDSA *ret=NULL;
- ECDSAPrivateKey *priv_key=NULL;
-
- if ((priv_key = ECDSAPrivateKey_new()) == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
-
- if ((priv_key = d2i_ecdsaPrivateKey(&priv_key, in, len)) == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
- ECDSA_R_D2I_ECDSA_PRIVATEKEY_FAILURE);
- ECDSAPrivateKey_free(priv_key);
- return NULL;
- }
-
- if (a == NULL || *a == NULL)
- {
- if ((ret = ECDSA_new()) == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
- ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if (a)
- *a = ret;
- }
- else
- ret = *a;
-
- if (ret->group)
- EC_GROUP_clear_free(ret->group);
-
- ret->group = EC_ASN1_pkparameters2group(priv_key->parameters);
- if (ret->group == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
- goto err;
- }
-
- ret->version = priv_key->version;
- if (priv_key->priv_key)
- {
- if ((ret->priv_key = BN_dup(priv_key->priv_key)) == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
- ERR_R_BN_LIB);
- goto err;
- }
- }
- else
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
- ECDSA_R_MISSING_PRIVATE_KEY);
- goto err;
- }
-
- if ((ret->pub_key = EC_POINT_new(ret->group)) == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
- goto err;
- }
-
- if (!EC_POINT_oct2point(ret->group, ret->pub_key,
- priv_key->pub_key->data, priv_key->pub_key->length, NULL))
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
- goto err;
- }
-
- ok = 1;
-
-err : if (!ok)
- {
- if (ret) ECDSA_free(ret);
- ret = NULL;
- }
- if (priv_key)
- ECDSAPrivateKey_free(priv_key);
- return(ret);
-}
-
-int i2d_ECDSAPrivateKey(ECDSA *a, unsigned char **out)
-{
- int ret=0, ok=0;
- unsigned char *buffer=NULL;
- size_t buf_len=0;
- ECDSAPrivateKey *priv_key=NULL;
-
- if (a == NULL || a->group == NULL)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY,
- ERR_R_PASSED_NULL_PARAMETER);
- goto err;
- }
-
- if ((priv_key = ECDSAPrivateKey_new()) == NULL)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY,
- ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- if ((priv_key->parameters = EC_ASN1_group2pkparameters(a->group,
- priv_key->parameters)) == NULL)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
- goto err;
- }
-
- priv_key->version = a->version;
-
- if (BN_copy(priv_key->priv_key, a->priv_key) == NULL)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_BN_LIB);
- goto err;
- }
-
- buf_len = EC_POINT_point2oct(a->group, a->pub_key,
- ECDSA_get_conversion_form(a), NULL, 0, NULL);
- if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if (!EC_POINT_point2oct(a->group, a->pub_key,
- ECDSA_get_conversion_form(a), buffer, buf_len, NULL))
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
- goto err;
- }
- if (!M_ASN1_OCTET_STRING_set(priv_key->pub_key, buffer, buf_len))
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_ASN1_LIB);
- goto err;
- }
- if ((ret = i2d_ecdsaPrivateKey(priv_key, out)) == 0)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY,
- ECDSA_R_I2D_ECDSA_PRIVATEKEY);
- goto err;
- }
- ok=1;
-
-err:
- if (buffer)
- OPENSSL_free(buffer);
- if (priv_key)
- ECDSAPrivateKey_free(priv_key);
- return(ok?ret:0);
-}
-
-
-ECDSA *ECDSAPublicKey_set_octet_string(ECDSA **a, const unsigned char **in, long len)
-{
- ECDSA *ret=NULL;
-
- if (a == NULL || (*a) == NULL || (*a)->group == NULL)
- {
- /* sorry, but a EC_GROUP-structur is necessary
- * to set the public key */
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ECDSA_R_MISSING_PARAMETERS);
- return 0;
- }
- ret = *a;
- if (ret->pub_key == NULL && (ret->pub_key = EC_POINT_new(ret->group)) == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if (!EC_POINT_oct2point(ret->group, ret->pub_key, *in, len, NULL))
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
- return 0;
- }
- ECDSA_set_conversion_form(ret, (point_conversion_form_t)(*in[0] & ~0x01));
- return ret;
-}
-
-int ECDSAPublicKey_get_octet_string(ECDSA *a, unsigned char **out)
-{
- size_t buf_len=0;
-
- if (a == NULL)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPUBLICKEY, ECDSA_R_MISSING_PARAMETERS);
- return 0;
- }
- buf_len = EC_POINT_point2oct(a->group, a->pub_key,
- ECDSA_get_conversion_form(a), 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)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPUBLICKEY, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if (!EC_POINT_point2oct(a->group, a->pub_key, ECDSA_get_conversion_form(a),
- *out, buf_len, NULL))
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPUBLICKEY, ERR_R_EC_LIB);
- OPENSSL_free(*out);
- *out = NULL;
- return 0;
- }
- return buf_len;
-}
projects / openssl.git / blobdiff