topic cryptography:ippsECCPComparePoint misprint in Intel® Integrated Performance Primitives

cryptography:ippsECCPComparePoint misprint

achrzesz2 — Fri, 14 Aug 2009 08:07:54 GMT

Hi
In ipp 6.1.0.038 (64) the function ippsECCPComparePoint returns:

Points are equial

A Chrzeszczyk

Re: cryptography:ippsECCPComparePoint misprint

Vladimir_Dudnik — Fri, 14 Aug 2009 09:43:44 GMT

Hello,

what do you actually mean? According function description it is one of the valid function results..

ECCPComparePoint

Compares two points on the elliptic curve defined over GF(p).

Syntax

IppStatus ippsECCPComparePoint(const IppsECCPPoint* pP, const IppsECCPPoint* pQ, IppECResult* pResult, IppsECCPState* pECC);

Parameters

pP
Pointer to the elliptic curve point P.

pQ
Pointer to the elliptic curve point Q.

pResult
Pointer to the comparison result of two points: P and Q.

pECC
Pointer to the context of the elliptic cryptosystem.

Description

The function compares two points P and Q on the elliptic curve defined over a prime finite field GF(p) and allocates the comparison result in accordance with the pointer pResult.

The elliptic curve domain parameters must be hitherto defined by one of the functions: ippsECCPSet or ippsECCPSetStd.

The comparison result of two points P and Q can take one of the following values:

ippECPointIsEqual
Points P and Q are equal.

ippECPointIsNotEqual
Points P and Q are different.

Return Values

ippStsNoErr
Indicates no error. Any other value indicates an error or warning.

ippStsNullPtrErr
Indicates an error condition if any of the specified pointers is NULL.

ippStsContextMatchErr
Indicates an error condition if one of the contexts pointed by pP or pECC is not valid.

Re: cryptography:ippsECCPComparePoint misprint

achrzesz2 — Fri, 14 Aug 2009 09:52:31 GMT

Quoting - Vladimir Dudnik (Intel)

Hello,

what do you actually mean? According function description it is one of the valid function results..

Hello,
the mentioned funtion should return : Points are equal
and returns: Points are ***equial***

It is not essential but needs needs improvement.

A Chrzeszczyk

Re: cryptography:ippsECCPComparePoint misprint

achrzesz2 — Fri, 14 Aug 2009 10:48:19 GMT

Quoting - achrzesz2

Hello,
the mentioned funtion should return : Points are equal
and returns: Points are ***equial***

It is not essential but needs needs improvement.

A Chrzeszczyk

Hello,
I haven't mentioned that I'm using Linux 64bit version (6.1.0.038).
A Chrzeszczyk

Re: cryptography:ippsECCPComparePoint misprint

Vladimir_Dudnik — Fri, 14 Aug 2009 15:05:59 GMT

I see, thank a lot for catching this, we will correct message in the next nearest update.

Regards,
Vladimir

pP	Pointer to the elliptic curve point P.
pQ	Pointer to the elliptic curve point Q.
pResult	Pointer to the comparison result of two points: P and Q.
pECC	Pointer to the context of the elliptic cryptosystem.

ippECPointIsEqual	Points P and Q are equal.
ippECPointIsNotEqual	Points P and Q are different.

ippStsNoErr	Indicates no error. Any other value indicates an error or warning.
ippStsNullPtrErr	Indicates an error condition if any of the specified pointers is NULL.
ippStsContextMatchErr	Indicates an error condition if one of the contexts pointed by pP or pECC is not valid.