some modifications to named curve support
authorBodo Möller <bodo@openssl.org>
Wed, 13 Feb 2002 17:57:52 +0000 (17:57 +0000)
committerBodo Möller <bodo@openssl.org>
Wed, 13 Feb 2002 17:57:52 +0000 (17:57 +0000)
crypto/ec/ec.h
crypto/ec/ec_curve.c
crypto/ec/ec_err.c

index 448bcd4..1a45693 100644 (file)
@@ -130,8 +130,12 @@ int EC_GROUP_get_cofactor(const EC_GROUP *, BIGNUM *cofactor, BN_CTX *);
  * after choosing an appropriate EC_METHOD */
 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *);
 
-EC_GROUP *EC_GROUP_get_group_by_name(int name);
-/* Valid arguments to EC_GROUP_get_group_by_name(): */
+/* EC_GROUP_new_by_nid() and EC_GROUP_new_by_name() also set
+ * generator and order */
+EC_GROUP *EC_GROUP_new_by_nid(const int nid);
+EC_GROUP *EC_GROUP_new_by_name(int name);
+/* Currently valid arguments to EC_GROUP_new_by_name()
+ * (unfortunately some curves have no OIDs [and no NIDs]): */
 #define EC_GROUP_NO_CURVE              0
 #define EC_GROUP_NIST_PRIME_192                1
 #define EC_GROUP_NIST_PRIME_224                2
@@ -146,8 +150,6 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name);
 #define EC_GROUP_X9_62_PRIME_239V3     NID_X9_62_prime239v3
 #define EC_GROUP_X9_62_PRIME_256V1     NID_X9_62_prime256v1
 
-EC_GROUP *EC_GROUP_nid2group(const int nid);
-int EC_GROUP_group2nid(const EC_GROUP *group);
 
 
 EC_POINT *EC_POINT_new(const EC_GROUP *);
@@ -220,16 +222,16 @@ void ERR_load_EC_strings(void);
 #define EC_F_EC_GROUP_GET_COFACTOR                      140
 #define EC_F_EC_GROUP_GET_CURVE_GFP                     130
 #define EC_F_EC_GROUP_GET_EXTRA_DATA                    107
-#define EC_F_EC_GROUP_GET_GROUP_BY_NAME                         144
 #define EC_F_EC_GROUP_GET_ORDER                                 141
-#define EC_F_EC_GROUP_GROUP2NID                                 145
+#define EC_F_EC_GROUP_GROUP2NID                                 147
 #define EC_F_EC_GROUP_NEW                               108
-#define EC_F_EC_GROUP_NID2GROUP                                 146
+#define EC_F_EC_GROUP_NEW_BY_NAME                       144
+#define EC_F_EC_GROUP_NEW_BY_NID                        146
+#define EC_F_EC_GROUP_NEW_GFP_FROM_HEX                  148
 #define EC_F_EC_GROUP_PRECOMPUTE_MULT                   142
 #define EC_F_EC_GROUP_SET_CURVE_GFP                     109
 #define EC_F_EC_GROUP_SET_EXTRA_DATA                    110
 #define EC_F_EC_GROUP_SET_GENERATOR                     111
-#define EC_F_EC_GROUP_SET_PRIME_GROUP                   147
 #define EC_F_EC_POINTS_MAKE_AFFINE                      136
 #define EC_F_EC_POINTS_MUL                              138
 #define EC_F_EC_POINT_ADD                               112
index 4c3ac84..a1388b4 100644 (file)
 #include <openssl/asn1.h>
 #include <openssl/asn1t.h>
 
-EC_GROUP *EC_GROUP_nid2group(const int nid)
-       {
-       switch(nid)
-               {
-       case NID_X9_62_prime192v1:
-               return EC_GROUP_get_group_by_name(EC_GROUP_X9_62_PRIME_192V1);
-       case NID_X9_62_prime192v2:
-               return EC_GROUP_get_group_by_name(EC_GROUP_X9_62_PRIME_192V2);
-       case NID_X9_62_prime192v3:
-               return EC_GROUP_get_group_by_name(EC_GROUP_X9_62_PRIME_192V3);
-       case NID_X9_62_prime239v1:
-               return EC_GROUP_get_group_by_name(EC_GROUP_X9_62_PRIME_239V1);
-       case NID_X9_62_prime239v2:
-               return EC_GROUP_get_group_by_name(EC_GROUP_X9_62_PRIME_239V2);
-       case NID_X9_62_prime239v3:
-               return EC_GROUP_get_group_by_name(EC_GROUP_X9_62_PRIME_239V3);
-       case NID_X9_62_prime256v1:
-               return EC_GROUP_get_group_by_name(EC_GROUP_X9_62_PRIME_256V1);
-               }
-       ECerr(EC_F_EC_GROUP_NID2GROUP, EC_R_UNKNOWN_NID);
-       return NULL;
-       }
-
-int EC_GROUP_group2nid(const EC_GROUP *group)
-       {
-       return EC_GROUP_get_nid(group);
-
-#if 0  
-/* TODO: a real compare function for EC_GROUPs */
-#define EC_GROUP_cmp(a,b) ((a) != (b))
-
-       if (group == NULL)
-               {
-               ECerr(EC_F_EC_GROUP_GROUP2NID, EC_R_MISSING_PARAMETERS);
-               return 0;
-               }
-       if (!EC_GROUP_cmp(group, EC_GROUP_GET_X9_62_192V1_GROUP()))
-               return NID_X9_62_prime192v1;
-       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_192v2_group()))
-               return NID_X9_62_prime192v2;
-       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_192v3_group()))
-               return NID_X9_62_prime192v3;
-       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_239v1_group()))
-               return NID_X9_62_prime239v1;
-       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_239v2_group()))
-               return NID_X9_62_prime239v2;
-       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_239v3_group()))
-               return NID_X9_62_prime239v3;
-       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_256v1_group()))
-               return NID_X9_62_prime256v1;
-       ECerr(EC_F_EC_GROUP_GROUP2NID, EC_R_UNKNOWN_GROUP);
-       return 0;
-#endif
-       }
-
-static EC_GROUP *ec_group_set_prime_group(const char *prime_in,
+static EC_GROUP *ec_group_new_GFp_from_hex(const char *prime_in,
            const char *a_in, const char *b_in,
            const char *x_in, const int y_bit, const char *order_in)
        {
@@ -142,7 +87,7 @@ static EC_GROUP *ec_group_set_prime_group(const char *prime_in,
        ok=1;
 bn_err:
        if (!ok)
-               ECerr(EC_F_EC_GROUP_SET_PRIME_GROUP, ERR_R_BN_LIB);
+               ECerr(EC_F_EC_GROUP_NEW_GFP_FROM_HEX, ERR_R_BN_LIB);
 err:
        if (!ok)
                {
@@ -157,9 +102,9 @@ err:
        if (order) BN_free(order);
        if (x)     BN_free(x);
        return(group);
-}
+       }
 
-EC_GROUP *EC_GROUP_get_group_by_name(int name)
+EC_GROUP *EC_GROUP_new_by_name(int name)
        {
        EC_GROUP *ret = NULL;
        switch (name)
@@ -168,7 +113,7 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
                return NULL;
 
        case EC_GROUP_NIST_PRIME_224:
-               return ec_group_set_prime_group(
+               return ec_group_new_GFp_from_hex(
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001",
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE",
                        "B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4",
@@ -176,7 +121,7 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D");
 
        case EC_GROUP_NIST_PRIME_384:
-               return ec_group_set_prime_group(
+               return ec_group_new_GFp_from_hex(
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFF",
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFC",
                        "B3312FA7E23EE7E4988E056BE3F82D19181D9C6EFE8141120314088F5013875AC656398D8A2ED19D2A85C8EDD3EC2AEF",
@@ -184,7 +129,7 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973");
 
        case EC_GROUP_NIST_PRIME_521:
-               return ec_group_set_prime_group(
+               return ec_group_new_GFp_from_hex(
                        "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
                        "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
@@ -198,7 +143,7 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
 
        case EC_GROUP_NIST_PRIME_192:
        case EC_GROUP_X9_62_PRIME_192V1:
-               ret = ec_group_set_prime_group(
+               ret = ec_group_new_GFp_from_hex(
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF",
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC",
                        "64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1",
@@ -208,7 +153,7 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
                return ret;
 
        case EC_GROUP_X9_62_PRIME_192V2:
-               ret = ec_group_set_prime_group(
+               ret = ec_group_new_GFp_from_hex(
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF",
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC",
                        "CC22D6DFB95C6B25E49C0D6364A4E5980C393AA21668D953",
@@ -218,7 +163,7 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
                return ret;
 
        case EC_GROUP_X9_62_PRIME_192V3:
-               ret = ec_group_set_prime_group(
+               ret = ec_group_new_GFp_from_hex(
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF",
                        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC",
                        "22123DC2395A05CAA7423DAECCC94760A7D462256BD56916",
@@ -228,7 +173,7 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
                return ret;
 
        case EC_GROUP_X9_62_PRIME_239V1:
-               ret = ec_group_set_prime_group(
+               ret = ec_group_new_GFp_from_hex(
                        "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFF",
                        "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFC",
                        "6B016C3BDCF18941D0D654921475CA71A9DB2FB27D1D37796185C2942C0A",
@@ -238,7 +183,7 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
                return ret;
 
        case EC_GROUP_X9_62_PRIME_239V2:
-               ret = ec_group_set_prime_group(
+               ret = ec_group_new_GFp_from_hex(
                        "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFF",
                        "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFC",
                        "617FAB6832576CBBFED50D99F0249C3FEE58B94BA0038C7AE84C8C832F2C",
@@ -248,7 +193,7 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
                return ret;
 
        case EC_GROUP_X9_62_PRIME_239V3:
-               ret = ec_group_set_prime_group(
+               ret = ec_group_new_GFp_from_hex(
                        "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFF",
                        "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFC",
                        "255705FA2A306654B1F4CB03D6A750A30C250102D4988717D9BA15AB6D3E",
@@ -259,7 +204,7 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
 
        case EC_GROUP_NIST_PRIME_256:
        case EC_GROUP_X9_62_PRIME_256V1:
-               ret = ec_group_set_prime_group(
+               ret = ec_group_new_GFp_from_hex(
                        "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF",
                        "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC",
                        "5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B",
@@ -267,8 +212,67 @@ EC_GROUP *EC_GROUP_get_group_by_name(int name)
                        "FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551");
                EC_GROUP_set_nid(ret, NID_X9_62_prime256v1);
                return ret;
+               }
+
+       ECerr(EC_F_EC_GROUP_NEW_BY_NAME, EC_R_UNKNOWN_GROUP);
+       return NULL;
        }
 
-       ECerr(EC_F_EC_GROUP_GET_GROUP_BY_NAME, EC_R_UNKNOWN_GROUP);
+
+EC_GROUP *EC_GROUP_new_by_nid(const int nid)
+       {
+       switch(nid)
+               {
+       case NID_X9_62_prime192v1:
+               return EC_GROUP_new_by_name(EC_GROUP_X9_62_PRIME_192V1);
+       case NID_X9_62_prime192v2:
+               return EC_GROUP_new_by_name(EC_GROUP_X9_62_PRIME_192V2);
+       case NID_X9_62_prime192v3:
+               return EC_GROUP_new_by_name(EC_GROUP_X9_62_PRIME_192V3);
+       case NID_X9_62_prime239v1:
+               return EC_GROUP_new_by_name(EC_GROUP_X9_62_PRIME_239V1);
+       case NID_X9_62_prime239v2:
+               return EC_GROUP_new_by_name(EC_GROUP_X9_62_PRIME_239V2);
+       case NID_X9_62_prime239v3:
+               return EC_GROUP_new_by_name(EC_GROUP_X9_62_PRIME_239V3);
+       case NID_X9_62_prime256v1:
+               return EC_GROUP_new_by_name(EC_GROUP_X9_62_PRIME_256V1);
+               }
+       ECerr(EC_F_EC_GROUP_NEW_BY_NID, EC_R_UNKNOWN_NID);
        return NULL;
-}
+       }
+
+
+#if 0
+int EC_GROUP_group2nid(const EC_GROUP *group)
+       {
+       return EC_GROUP_get_nid(group);
+
+#if 0  
+/* TODO: a real compare function for EC_GROUPs */
+#define EC_GROUP_cmp(a,b) ((a) != (b))
+
+       if (group == NULL)
+               {
+               ECerr(EC_F_EC_GROUP_GROUP2NID, EC_R_MISSING_PARAMETERS);
+               return 0;
+               }
+       if (!EC_GROUP_cmp(group, EC_GROUP_GET_X9_62_192V1_GROUP()))
+               return NID_X9_62_prime192v1;
+       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_192v2_group()))
+               return NID_X9_62_prime192v2;
+       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_192v3_group()))
+               return NID_X9_62_prime192v3;
+       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_239v1_group()))
+               return NID_X9_62_prime239v1;
+       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_239v2_group()))
+               return NID_X9_62_prime239v2;
+       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_239v3_group()))
+               return NID_X9_62_prime239v3;
+       else if (!EC_GROUP_cmp(group, EC_GROUP_get_x9_62_256v1_group()))
+               return NID_X9_62_prime256v1;
+       ECerr(EC_F_EC_GROUP_GROUP2NID, EC_R_UNKNOWN_GROUP);
+       return 0;
+#endif
+       }
+#endif
index 1b023d7..9862050 100644 (file)
@@ -85,16 +85,16 @@ static ERR_STRING_DATA EC_str_functs[]=
 {ERR_PACK(0,EC_F_EC_GROUP_GET_COFACTOR,0),     "EC_GROUP_get_cofactor"},
 {ERR_PACK(0,EC_F_EC_GROUP_GET_CURVE_GFP,0),    "EC_GROUP_get_curve_GFp"},
 {ERR_PACK(0,EC_F_EC_GROUP_GET_EXTRA_DATA,0),   "EC_GROUP_get_extra_data"},
-{ERR_PACK(0,EC_F_EC_GROUP_GET_GROUP_BY_NAME,0),        "EC_GROUP_get_group_by_name"},
 {ERR_PACK(0,EC_F_EC_GROUP_GET_ORDER,0),        "EC_GROUP_get_order"},
-{ERR_PACK(0,EC_F_EC_GROUP_GROUP2NID,0),        "EC_GROUP_group2nid"},
+{ERR_PACK(0,EC_F_EC_GROUP_GROUP2NID,0),        "EC_GROUP_GROUP2NID"},
 {ERR_PACK(0,EC_F_EC_GROUP_NEW,0),      "EC_GROUP_new"},
-{ERR_PACK(0,EC_F_EC_GROUP_NID2GROUP,0),        "EC_GROUP_nid2group"},
+{ERR_PACK(0,EC_F_EC_GROUP_NEW_BY_NAME,0),      "EC_GROUP_new_by_name"},
+{ERR_PACK(0,EC_F_EC_GROUP_NEW_BY_NID,0),       "EC_GROUP_new_by_nid"},
+{ERR_PACK(0,EC_F_EC_GROUP_NEW_GFP_FROM_HEX,0), "EC_GROUP_NEW_GFP_FROM_HEX"},
 {ERR_PACK(0,EC_F_EC_GROUP_PRECOMPUTE_MULT,0),  "EC_GROUP_precompute_mult"},
 {ERR_PACK(0,EC_F_EC_GROUP_SET_CURVE_GFP,0),    "EC_GROUP_set_curve_GFp"},
 {ERR_PACK(0,EC_F_EC_GROUP_SET_EXTRA_DATA,0),   "EC_GROUP_set_extra_data"},
 {ERR_PACK(0,EC_F_EC_GROUP_SET_GENERATOR,0),    "EC_GROUP_set_generator"},
-{ERR_PACK(0,EC_F_EC_GROUP_SET_PRIME_GROUP,0),  "EC_GROUP_SET_PRIME_GROUP"},
 {ERR_PACK(0,EC_F_EC_POINTS_MAKE_AFFINE,0),     "EC_POINTs_make_affine"},
 {ERR_PACK(0,EC_F_EC_POINTS_MUL,0),     "EC_POINTs_mul"},
 {ERR_PACK(0,EC_F_EC_POINT_ADD,0),      "EC_POINT_add"},