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New functions EC_POINT_point2bn(), EC_POINT_bn2point(), EC_POINT_point2hex(), EC_POINT_hex2point()

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Submitted by: Nils Larsch
This commit is contained in:
Bodo Möller
2002-05-30 13:16:03 +00:00
parent 07c08ed42c
commit 6cbe638294
5 changed files with 254 additions and 62 deletions
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93
crypto/asn1/t_pkey.c
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@@ -266,60 +266,38 @@ int ECDSA_print(BIO *bp, const ECDSA *x, int off)
reason = ERR_R_EC_LIB;
goto err;
}
if (!EC_GROUP_get_order(x->group, tmp_6, NULL) || !EC_GROUP_get_cofactor(x->group, tmp_7, NULL))
if (!EC_GROUP_get_order(x->group, tmp_6, NULL) ||
!EC_GROUP_get_cofactor(x->group, tmp_7, NULL))
{
reason = ERR_R_EC_LIB;
goto err;
}
if ((buf_len = EC_POINT_point2oct(x->group, point, ECDSA_get_conversion_form(x), NULL, 0, ctx)) == 0)
if ((tmp_4 = EC_POINT_point2bn(x->group, point,
ECDSA_get_conversion_form(x), tmp_4, ctx)) == NULL)
{
reason = ECDSA_R_UNEXPECTED_PARAMETER_LENGTH;
reason = ERR_R_EC_LIB;
goto err;
}
if ((tmp_5 = EC_POINT_point2bn(x->group, x->pub_key,
ECDSA_get_conversion_form(x), tmp_5, ctx)) == NULL)
{
reason = ERR_R_EC_LIB;
goto err;
}
buf_len = BN_num_bytes(tmp_1);
if (buf_len < (i = BN_num_bytes(tmp_2))) buf_len = i;
if (buf_len < (i = BN_num_bytes(tmp_3))) buf_len = i;
if (buf_len < (i = BN_num_bytes(tmp_4))) buf_len = i;
if (buf_len < (i = BN_num_bytes(tmp_5))) buf_len = i;
if (buf_len < (i = BN_num_bytes(tmp_6))) buf_len = i;
if (buf_len < (i = BN_num_bytes(tmp_7))) buf_len = i;
buf_len += 10;
if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
{
reason = ERR_R_MALLOC_FAILURE;
goto err;
}
if (!EC_POINT_point2oct(x->group, point, ECDSA_get_conversion_form(x),
buffer, buf_len, ctx)) goto err;
if ((tmp_4 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
{
reason = ERR_R_BN_LIB;
goto err;
}
if ((i = EC_POINT_point2oct(x->group, x->pub_key, ECDSA_get_conversion_form(x), NULL, 0, ctx)) == 0)
{
reason = ECDSA_R_UNEXPECTED_PARAMETER_LENGTH;
goto err;
}
if (i > buf_len && (buffer = OPENSSL_realloc(buffer, i)) == NULL)
{
reason = ERR_R_MALLOC_FAILURE;
buf_len = i;
goto err;
}
if (!EC_POINT_point2oct(x->group, x->pub_key, ECDSA_get_conversion_form(x),
buffer, buf_len, ctx))
{
reason = ERR_R_EC_LIB;
goto err;
}
if ((tmp_5 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
{
reason = ERR_R_BN_LIB;
goto err;
}
if (tmp_1 != NULL)
i = BN_num_bytes(tmp_1)*2;
else
i=256;
if ((i + 10) > buf_len && (buffer = OPENSSL_realloc(buffer, i+10)) == NULL)
{
reason = ERR_R_MALLOC_FAILURE;
buf_len = i;
goto err;
}
if (off)
{
if (off > 128) off=128;
@@ -552,25 +530,22 @@ int ECDSAParameters_print(BIO *bp, const ECDSA *x)
if ((point = EC_GROUP_get0_generator(x->group)) == NULL) goto err;
if (!EC_GROUP_get_order(x->group, tmp_5, ctx)) goto err;
if (!EC_GROUP_get_cofactor(x->group, tmp_6, ctx)) goto err;
buf_len = EC_POINT_point2oct(x->group, point, ECDSA_get_conversion_form(x), NULL, 0, ctx);
if (!buf_len || (buffer = OPENSSL_malloc(buf_len)) == NULL)
{
reason = ERR_R_MALLOC_FAILURE;
goto err;
}
if (!EC_POINT_point2oct(x->group, point, ECDSA_get_conversion_form(x), buffer, buf_len, ctx))
{
if ((tmp_4 = EC_POINT_point2bn(x->group, point,
ECDSA_get_conversion_form(x), NULL, ctx)) == NULL)
{
reason = ERR_R_EC_LIB;
goto err;
}
if ((tmp_4 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
{
reason = ERR_R_BN_LIB;
goto err;
}
i = BN_num_bits(tmp_1) + 10;
if (i > buf_len && (buffer = OPENSSL_realloc(buffer, i)) == NULL)
}
buf_len = BN_num_bytes(tmp_1);
if (buf_len < (i = BN_num_bytes(tmp_2))) buf_len = i;
if (buf_len < (i = BN_num_bytes(tmp_3))) buf_len = i;
if (buf_len < (i = BN_num_bytes(tmp_4))) buf_len = i;
if (buf_len < (i = BN_num_bytes(tmp_5))) buf_len = i;
if (buf_len < (i = BN_num_bytes(tmp_6))) buf_len = i;
buf_len += 10;
if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
{
reason=ERR_R_MALLOC_FAILURE;
goto err;