sign_recover.go

package certex

/*
#include <stdlib.h>
#include <dlfcn.h>
#include <unistd.h>
#include <stdio.h>

#include "./headers/cryptoki.h"
#include "./headers/pkcs11def.h"
#include "./headers/pkcs11t.h"
#include "./headers/PKICertexHSM.h"

CK_RV sign_recover_init(CK_FUNCTION_LIST_PTR fl, CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey) {
	return (*fl->C_SignRecoverInit)(hSession, pMechanism, hKey);
}
CK_RV sign_recover(CK_FUNCTION_LIST_PTR fl, CK_SESSION_HANDLE hSession, CK_BYTE_PTR pData, CK_ULONG pDataLen, CK_BYTE_PTR *pSignature, CK_ULONG_PTR pulSignatureLen) {
	CK_RV rv = (*fl->C_SignRecover)(hSession, pData, pDataLen, NULL, pulSignatureLen);
	if (rv != CKR_OK) {
		return rv;
	}
	*pSignature = calloc(*pulSignatureLen, sizeof(CK_BYTE));
	if (*pSignature == NULL) {
		return CKR_HOST_MEMORY;
	}
	rv = (*fl->C_SignRecover)(hSession, pData, pDataLen, *pSignature, pulSignatureLen);
	return rv;
}
*/
import "C"
import (
	"fmt"
	"unsafe"
)

func (o *Object) SignRecoverInit(mech *Mechanism) error {
	var arena, cm = cMechanism(mech)
	defer arena.Free()
	if rv := C.sign_recover_init(o.fl, o.h, cm, o.o); rv != C.CKR_OK {
		return fmt.Errorf("sign_recover_init: 0x%08x : %s", rv, returnValues[rv])
	}
	return nil
}

func (o *Object) SignRecover(data []byte) ([]byte, error) {
	var (
		cSig    C.CK_BYTE_PTR
		cSigLen C.CK_ULONG
	)
	if rv := C.sign_recover(o.fl, o.h, cData(data), C.CK_ULONG(len(data)), &cSig, &cSigLen); rv != C.CKR_OK {
		return nil, fmt.Errorf("sign_recover: 0x%08x : %s", rv, returnValues[rv])
	}
	s := C.GoBytes(unsafe.Pointer(cSig), C.int(cSigLen))
	C.free(unsafe.Pointer(cSig))
	return s, nil
}