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// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkcs11
import (
"bytes"
"testing"
)
const notFound = 0xffffffff
// test whether mech is available; skip the test if it isn't
func needMech(t *testing.T, p *Ctx, sh SessionHandle, mech uint) {
slots, err := p.GetSlotList(true)
if err != nil {
t.Fatal("GetSlotList:", err)
}
_, err = p.GetMechanismInfo(slots[0], []*Mechanism{NewMechanism(mech, nil)})
if err == nil {
return
}
e, ok := err.(Error)
if !ok || e != CKR_MECHANISM_INVALID {
t.Fatal("GetMechanismInfo:", err)
}
t.Skipf("skipping test; mech 0x%X not supported by softhsm", mech)
}
func findObject(t *testing.T, p *Ctx, sh SessionHandle, class uint, label string) ObjectHandle {
template := []*Attribute{
NewAttribute(CKA_CLASS, class),
NewAttribute(CKA_LABEL, label),
}
if err := p.FindObjectsInit(sh, template); err != nil {
t.Fatal("FindObjectsInit:", err)
}
obj, _, err := p.FindObjects(sh, 1)
if err != nil {
t.Fatal("FindObjects:", err)
}
if err := p.FindObjectsFinal(sh); err != nil {
t.Fatal("FindObjectsFinal:", err)
}
if len(obj) > 0 {
return obj[0]
}
return notFound
}
// generate a rsa key if it doesn't exist
func getRSA(t *testing.T, p *Ctx, sh SessionHandle) (pub, priv ObjectHandle) {
pub = findObject(t, p, sh, CKO_PUBLIC_KEY, "paramstest")
priv = findObject(t, p, sh, CKO_PUBLIC_KEY, "paramstest")
if pub == notFound || priv == notFound {
pub, priv = generateRSAKeyPair(t, p, sh, "paramstest", false)
}
return
}
func TestPSSParams(t *testing.T) {
p := setenv(t)
sh := getSession(p, t)
defer finishSession(p, sh)
needMech(t, p, sh, CKM_RSA_PKCS_PSS)
pub, priv := getRSA(t, p, sh)
sum := []byte("1234567890abcdef1234567890abcdef")
params := NewPSSParams(CKM_SHA256, CKG_MGF1_SHA256, 32)
mech := []*Mechanism{NewMechanism(CKM_RSA_PKCS_PSS, params)}
if err := p.SignInit(sh, mech, priv); err != nil {
t.Fatal("SignInit:", err)
}
sig, err := p.Sign(sh, sum)
if err != nil {
t.Fatal("Sign:", err)
}
if err := p.VerifyInit(sh, mech, pub); err != nil {
t.Fatal("VerifyInit:")
}
if err := p.Verify(sh, sum, sig); err != nil {
t.Fatal("Verify:")
}
}
func TestOAEPParams(t *testing.T) {
p := setenv(t)
sh := getSession(p, t)
defer finishSession(p, sh)
needMech(t, p, sh, CKM_RSA_PKCS_OAEP)
pub, priv := getRSA(t, p, sh)
msg := []byte("1234567890abcdef1234567890abcdef")
params := NewOAEPParams(CKM_SHA_1, CKG_MGF1_SHA1, CKZ_DATA_SPECIFIED, nil)
mech := []*Mechanism{NewMechanism(CKM_RSA_PKCS_OAEP, params)}
if err := p.EncryptInit(sh, mech, pub); err != nil {
t.Fatal("EncryptInit:", err)
}
ciphertext, err := p.Encrypt(sh, msg)
if err != nil {
t.Fatal("Encrypt:", err)
}
if err := p.DecryptInit(sh, mech, priv); err != nil {
t.Fatal("DecryptInit:")
}
msg2, err := p.Decrypt(sh, ciphertext)
if err != nil {
t.Fatal("Decrypt:")
}
if !bytes.Equal(msg, msg2) {
t.Errorf("plaintext does not match: expected %x != actual %x", msg, msg2)
}
}
func TestGCMParams(t *testing.T) {
p := setenv(t)
sh := getSession(p, t)
defer finishSession(p, sh)
needMech(t, p, sh, CKM_AES_GCM)
key, err := p.GenerateKey(sh, []*Mechanism{NewMechanism(CKM_AES_KEY_GEN, nil)}, []*Attribute{
NewAttribute(CKA_TOKEN, false),
NewAttribute(CKA_DECRYPT, true),
NewAttribute(CKA_ENCRYPT, true),
NewAttribute(CKA_VALUE_LEN, 32),
})
if err != nil {
t.Fatal("GenerateKey:", err)
}
iv := []byte("0123456789ab")
msg := []byte("1234567890abcdef1234567890abcdef")
params := NewGCMParams(iv, nil, 128)
defer params.Free()
if err := p.EncryptInit(sh, []*Mechanism{NewMechanism(CKM_AES_GCM, params)}, key); err != nil {
t.Fatal("EncryptInit:", err)
}
ciphertext, err := p.Encrypt(sh, msg)
if err != nil {
t.Fatal("Encrypt:", err)
}
iv = params.IV()
params.Free()
params = NewGCMParams(iv, nil, 128)
defer params.Free()
if err := p.DecryptInit(sh, []*Mechanism{NewMechanism(CKM_AES_GCM, params)}, key); err != nil {
t.Fatal("DecryptInit:", err)
}
msg2, err := p.Decrypt(sh, ciphertext)
if err != nil {
t.Fatal("Decrypt:", err)
}
if !bytes.Equal(msg, msg2) {
t.Errorf("plaintext does not match: expected %x != actual %x", msg, msg2)
}
params.Free()
}
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