hu_ECNRNoHashVerify()

Verifies an ECNR signature on the given message digest.

Synopsis:

#include "huecc.h"
 
int hu_ECNRNoHashVerify(sb_Params eccParams, sb_PublicKey publicKey, size_t length, const unsigned char *messageDigest, size_t sLength, const unsigned char *sValue, size_t rLength, const unsigned char *rValue, int *result, sb_GlobalCtx sbCtx)

Since:

BlackBerry 10.0.0

Arguments:

eccParams

An ECC parameters object.

publicKey

An ECC public key object.

length

The length (in bytes) of the message digest.

messageDigest

A message digest.

sLength

The length (in bytes) of sValue.

sValue

The s component of the signature.

rLength

The length (in bytes) of rValue.

rValue

The r component of the signature.

result

The verification result. This is non-zero if the signature is valid; zero if the signature is invalid.

sbCtx

A global context.

Library:

libhuapi (For the qcc command, use the -l huapi option to link against this library)

Description:

This function assumes that the input is a message digest (of any length); no digest operation will be performed on the input.

If the signature is valid for the given digest, this function will return SB_SUCCESS and set result to a non-zero value.

If the signature is not valid for the given digest, this function will return SB_SUCCESS but result will be set to zero.

Returns:

SB_ERR_NULL_PARAMS

The eccParams object is NULL.

SB_ERR_BAD_PARAMS

The tag for the params object is not of the expected type.

SB_ERR_NULL_PUBLIC_KEY

The publicKey object is NULL.

SB_ERR_BAD_PUBLIC_KEY

The publicKey object is invalid.

SB_ERR_BAD_INPUT_BUF_LEN

The message digest length is invalid.

SB_ERR_NULL_INPUT_BUF

The message digest is NULL.

SB_ERR_NULL_S_VALUE

The signature component is NULL.

SB_ERR_BAD_S_VALUE_LEN

The signature component length is invalid.

SB_ERR_NULL_R_VALUE

The signature component is NULL.

SB_ERR_BAD_R_VALUE_LEN

The signature component length is invalid.

SB_ERR_NULL_OUTPUT

The verification result pointer is NULL.

SB_FAIL_ALLOC

Memory allocation failure.

SB_SUCCESS

Success.

Last modified: 2014-05-14



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