Skip to content

Latest commit

 

History

History
53 lines (34 loc) · 1014 Bytes

GUID-9D2726DD-EE92-4CB8-A35B-AE94121D562B.md

File metadata and controls

53 lines (34 loc) · 1014 Bytes
Raw

CRYPT_ECC_KeySizeGet Function

Parent topic:MPLAB® Harmony Crypto Library

C

int CRYPT_ECC_KeySizeGet(
    CRYPT_ECC_CTX* ecc
);

Description

This function returns the size of the ECC key, in octets.

Preconditions

The ECC context must have been initialized with a call to CRYPT_ECC_Initialize. The key must have been imported or created prior to calling this function.

Parameters

Parameters Description
ecc Pointer to context which saves state between calls and contains the key.

Returns

  • BAD_FUNC_ARG - An invalid pointer was passed to the function.

  • int - The size of the key, in octets.

Remarks

None.

Example

CRYPT_ECC_CTX userA; 
int           ret;
byte          sig[100];
unsigned int  sigSz = (unsigned int)sizeof(sig);
unsigned int  usedA = 0;

ret = CRYPT_ECC_Initialize(&userA);
...
// Import or generate private key
...
ret = CRYPT_ECC_KeySizeGet(&userA);