I had been setting the x and y coordinates with BN_bin2bn, not with EC_POINT_set_affine_coordinates_GFp . Some of the point setup had not been performed.
Everything is good now.
Steven Pauly
Pitney Bowes GMS
| Nils Larsch
<[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED] 03/08/2006 12:52 PM
|
|
[EMAIL PROTECTED] wrote:
>
> I'm getting a EC_R_POINT_IS_NOT_ON_CURVE when using _EC_SECG_PRIME_160R1
> for the following public key:
>
> X: 7B AE 41 B9 06 CF B6 FC D4 5B 8C 17 2F B8 30 59 E0 29 30 1C
> Y: FB 5C 39 C6 76 15 AB E4 B3 86 86 BA 8D 56 7D 49 08 A3 E8 1E
> Z: 1
>
> If I modify the function EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM
> *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx) line 109 as follows:
>
> #if 0
> meth = EC_GFp_mont_method();
> #else
> meth = EC_GFp_simple_method();
> #endif
>
> It runs without errors.
>
> Any thoughts?
strange, I just wrote a very simple test program with your point
and it works ...
What did you exactly do ? Does ectest etc. run without errors ?
Cheers,
Nils
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