/*
 * COPYRIGHT (c) International Business Machines Corp. 2005-2017
 *
 * This program is provided under the terms of the Common Public License,
 * version 1.0 (CPL-1.0). Any use, reproduction or distribution for this
 * software constitutes recipient's acceptance of CPL-1.0 terms which can be
 * found in the file LICENSE file or at
 * https://opensource.org/licenses/cpl1.0.php
 */

/* File: speed.c
 *
 * Performance tests for Opencryptoki
 *
 *    RSA keygen (with keylength 1024, 2048, 4096)
 *    RSA sign and verify (with keylength 1024, 2048, 4096)
 *    RSA encrypt and decrypt (with keylength 1024, 2048, 4096)
 *    DES3 encrypt and decrypt (with modes ECB and CBC)
 *    AES encrypt and decrypt (with modes ECB and CBC, with keylength 128, 192,
 *    256), SHA1, SHA256, SHA512
 */


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <sys/types.h>
#include <sys/time.h>

#include "pkcs11types.h"
#include "regress.h"
#include "common.c"

#define SHA1_HASH_LEN   20
#define SHA256_HASH_LEN 32
#define SHA512_HASH_LEN 64
#define MAX_HASH_LEN SHA512_HASH_LEN


// the GetSystemTime and SYSTEMTIME implementation
// from regress.h only has a ms resolution
// and produces absolut inacceptable measurements.
// So we use gettimeofday() and struct timeval
// with us resolution instead.
#ifdef SYSTEMTIME
#undef SYSTEMTIME
#endif
#define SYSTEMTIME struct timeval
#ifdef GetSystemTime
#undef GetSystemTime
#endif
#define GetSystemTime(x) gettimeofday((x),NULL)
static inline unsigned long delta_time_us(struct timeval *t1,
                                          struct timeval *t2)
{
    unsigned long d;
    struct timeval td;

    timersub(t2, t1, &td);
    d = td.tv_sec * 1000 * 1000 + td.tv_usec;

    return (d ? d : 1);         // return 1us if delta is 0
}

// keylength: 512, 1024, 2048, 4096
int do_RSA_PKCS_EncryptDecrypt(int keylength)
{
    CK_SLOT_ID slot_id;
    CK_SESSION_HANDLE session;
    CK_MECHANISM mech;
    CK_FLAGS flags;
    CK_BYTE user_pin[PKCS11_MAX_PIN_LEN];
    CK_ULONG user_pin_len;
    CK_RV rv, rc;

    CK_OBJECT_HANDLE publ_key, priv_key;
    CK_BYTE data1[100];
    CK_BYTE data2[512];
    CK_BYTE encdata[512];
    CK_ULONG len1, len2, encdata_len;

    CK_ULONG i;
    CK_ULONG iterations = 2000;
    SYSTEMTIME t1, t2;
    CK_ULONG diff, avg_time, min_time, max_time, tot_time;

    CK_ULONG bits = keylength;
    CK_BYTE pub_exp[] = { 0x01, 0x00, 0x01 };

    CK_ATTRIBUTE pub_tmpl[] = {
        {CKA_MODULUS_BITS, &bits, sizeof(bits)},
        {CKA_PUBLIC_EXPONENT, &pub_exp, sizeof(pub_exp)}
    };

    testcase_begin("RSA PKCS Encrypt with keylen=%d datalen=%d",
                   keylength, (int) sizeof(data1));

    slot_id = SLOT_ID;

    testcase_rw_session();
    testcase_user_login();

    mech.mechanism = CKM_RSA_PKCS_KEY_PAIR_GEN;
    mech.ulParameterLen = 0;
    mech.pParameter = NULL;

    rc = funcs->C_GenerateKeyPair(session, &mech, pub_tmpl, 2, NULL, 0,
                                  &publ_key, &priv_key);
    if (rc != CKR_OK) {
        testcase_error("C_GenerateKeyPair rc=%s", p11_get_ckr(rc));
        goto testcase_cleanup;
    }

    len1 = sizeof(data1);
    encdata_len = sizeof(encdata);
    for (i = 0; i < len1; i++)
        data1[i] = (unsigned char) i;

    mech.mechanism = CKM_RSA_PKCS;
    mech.ulParameterLen = 0;
    mech.pParameter = NULL;

    tot_time = 0;
    max_time = 0;
    min_time = 0xFFFFFFFF;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);

        rc = funcs->C_EncryptInit(session, &mech, publ_key);
        if (rc != CKR_OK) {
            testcase_error("C_EncryptInit rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        encdata_len = sizeof(encdata);
        rc = funcs->C_Encrypt(session, data1, len1, encdata, &encdata_len);
        if (rc != CKR_OK) {
            testcase_error("C_Encrypt rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        GetSystemTime(&t2);

        diff = delta_time_us(&t1, &t2);

        tot_time += diff;

        if (diff < min_time)
            min_time = diff;

        if (diff > max_time)
            max_time = diff;
    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;
    min_time /= 1000;
    max_time /= 1000;
    avg_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldms max=%ldms avg=%ldms "
           "op/s=%.3f\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time);

    printf("RSA PKCS Decrypt with keylen=%d datalen=%d\n",
           keylength, (int) encdata_len);

    tot_time = 0;
    max_time = 0;
    min_time = 0xFFFFFFFF;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);

        rc = funcs->C_DecryptInit(session, &mech, priv_key);
        if (rc != CKR_OK) {
            testcase_error("C_DecryptInit rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        len2 = sizeof(data2);
        rc = funcs->C_Decrypt(session, encdata, encdata_len, data2, &len2);
        if (rc != CKR_OK) {
            testcase_error("C_Decrypt rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }
        if (len2 != len1) {
            testcase_error("len1=%lu and len2=%lu do not match ?!?",
                           len1, len2);
            rc = CKR_FUNCTION_FAILED;;
            goto testcase_cleanup;
        }

        GetSystemTime(&t2);

        diff = delta_time_us(&t1, &t2);

        tot_time += diff;

        if (diff < min_time)
            min_time = diff;

        if (diff > max_time)
            max_time = diff;

    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;
    min_time /= 1000;
    max_time /= 1000;
    avg_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldms max=%ldms avg=%ldms "
           "op/s=%.3f\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time);

testcase_cleanup:
    rv = funcs->C_CloseAllSessions(slot_id);
    if (rv != CKR_OK) {
        testcase_error("C_CloseAllSessions rv=%s", p11_get_ckr(rv));
        return FALSE;
    }

    return TRUE;
}

// keylength: 512, 1024, 2048, 4096
int do_RSA_KeyGen(int keylength)
{
    CK_SESSION_HANDLE session;
    CK_MECHANISM mech;
    CK_FLAGS flags;
    CK_BYTE user_pin[PKCS11_MAX_PIN_LEN];
    CK_ULONG user_pin_len;
    CK_RV rv, rc;

    CK_ULONG iterations = 10;
    SYSTEMTIME t1, t2;
    CK_ULONG diff, avg_time, max_time, min_time, tot_time, i;
    CK_ULONG bits = 2048;

    CK_OBJECT_HANDLE publ_key, priv_key;
    CK_BYTE pub_exp[] = { 0x01, 0x00, 0x01 };
    CK_ATTRIBUTE pub_tmpl[] = {
        {CKA_MODULUS_BITS, &bits, sizeof(bits)},
        {CKA_PUBLIC_EXPONENT, &pub_exp, sizeof(pub_exp)}
    };

    testcase_begin("RSA KeyGen with keylen=%d", keylength);

    testcase_rw_session();
    testcase_user_login();

    mech.mechanism = CKM_RSA_PKCS_KEY_PAIR_GEN;
    mech.ulParameterLen = 0;
    mech.pParameter = NULL;

    rc = funcs->C_GenerateKeyPair(session, &mech, pub_tmpl, 2, NULL, 0,
                                  &publ_key, &priv_key);
    if (rc != CKR_OK) {
        testcase_error("C_GenerateKeyPair rc=%s", p11_get_ckr(rc));
        goto testcase_cleanup;
    }

    min_time = 0xFFFFFFFF;
    max_time = 0x00000000;
    tot_time = 0x00000000;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);
        rc = funcs->C_GenerateKeyPair(session, &mech, pub_tmpl, 2,
                                      NULL, 0, &publ_key, &priv_key);
        if (rc != CKR_OK) {
            testcase_error("C_GenerateKeyPair rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }
        GetSystemTime(&t2);
        diff = delta_time_us(&t1, &t2);
        tot_time += diff;
        if (diff < min_time)
            min_time = diff;
        if (diff > max_time)
            max_time = diff;
    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;
    min_time /= 1000;
    max_time /= 1000;
    avg_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldms max=%ldms avg=%ldms "
           "op/s=%.3f\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time);

testcase_cleanup:
    rv = funcs->C_CloseSession(session);
    if (rv != CKR_OK) {
        testcase_error("C_CloseSession rv=%s", p11_get_ckr(rv));
        return FALSE;
    }

    return TRUE;
}

// keylength: 512, 1024, 2048, 4096
int do_RSA_PKCS_SignVerify(int keylength)
{
    CK_SLOT_ID slot_id;
    CK_SESSION_HANDLE session;
    CK_MECHANISM mech;
    CK_FLAGS flags;
    CK_BYTE user_pin[PKCS11_MAX_PIN_LEN];
    CK_ULONG user_pin_len;
    CK_RV rv, rc;

    CK_ULONG i, len1, sig_len;
    CK_BYTE signature[512];
    CK_BYTE data1[100];
    CK_OBJECT_HANDLE publ_key, priv_key;

    SYSTEMTIME t1, t2;
    CK_ULONG diff, avg_time, min_time, max_time, tot_time;
    CK_ULONG iterations = 1000;

    CK_ULONG bits = keylength;
    CK_BYTE pub_exp[] = { 0x01, 0x00, 0x01 };
    CK_ATTRIBUTE pub_tmpl[] = {
        {CKA_MODULUS_BITS, &bits, sizeof(bits)},
        {CKA_PUBLIC_EXPONENT, &pub_exp, sizeof(pub_exp)}
    };

    slot_id = SLOT_ID;

    testcase_begin("RSA PKCS Sign with keylen=%d datalen=%d",
                   keylength, (int) sizeof(data1));

    testcase_rw_session();
    testcase_user_login();

    mech.mechanism = CKM_RSA_PKCS_KEY_PAIR_GEN;
    mech.ulParameterLen = 0;
    mech.pParameter = NULL;

    rc = funcs->C_GenerateKeyPair(session, &mech, pub_tmpl, 2, NULL, 0,
                                  &publ_key, &priv_key);
    if (rc != CKR_OK) {
        testcase_error("C_GenerateKeyPair rc=%s", p11_get_ckr(rc));
        goto testcase_cleanup;
    }
    // sign some data
    len1 = sizeof(data1);
    sig_len = sizeof(signature);

    for (i = 0; i < len1; i++)
        data1[i] = (unsigned char) i;

    mech.mechanism = CKM_RSA_PKCS;
    mech.ulParameterLen = 0;
    mech.pParameter = NULL;

    tot_time = 0;
    max_time = 0;
    min_time = 0xFFFFFFFF;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);

        rc = funcs->C_SignInit(session, &mech, priv_key);
        if (rc != CKR_OK) {
            testcase_error("C_SignInit rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        sig_len = sizeof(signature);
        rc = funcs->C_Sign(session, data1, len1, signature, &sig_len);
        if (rc != CKR_OK) {
            testcase_error("C_Sign rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        GetSystemTime(&t2);
        diff = delta_time_us(&t1, &t2);
        tot_time += diff;
        if (diff < min_time)
            min_time = diff;
        if (diff > max_time)
            max_time = diff;
    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;
    min_time /= 1000;
    max_time /= 1000;
    avg_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldms max=%ldms avg=%ldms "
           "op/s=%.3f\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time);

    printf("RSA PKCS Verify with keylen=%d datalen=%d\n",
           keylength, (int) sizeof(data1));

    tot_time = 0;
    max_time = 0;
    min_time = 0xFFFFFFFF;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);
        rc = funcs->C_VerifyInit(session, &mech, publ_key);
        if (rc != CKR_OK) {
            testcase_error("C_VerifyInit rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        rc = funcs->C_Verify(session, data1, len1, signature, sig_len);
        if (rc != CKR_OK) {
            testcase_error("C_Verify rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        GetSystemTime(&t2);
        diff = delta_time_us(&t1, &t2);
        tot_time += diff;
        if (diff < min_time)
            min_time = diff;
        if (diff > max_time)
            max_time = diff;
    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;
    min_time /= 1000;
    max_time /= 1000;
    avg_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldms max=%ldms avg=%ldms "
           "op/s=%.3f\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time);

testcase_cleanup:
    rv = funcs->C_CloseAllSessions(slot_id);
    if (rv != CKR_OK) {
        testcase_error("C_CloseAllSession rv=%s", p11_get_ckr(rv));
        return FALSE;
    }

    return TRUE;
}

// mode: ECB CBC
int do_DES3_EncrDecr(const char *mode)
{
    CK_SLOT_ID slot_id;
    CK_SESSION_HANDLE session;
    CK_MECHANISM mech;
    CK_FLAGS flags;
    CK_BYTE user_pin[PKCS11_MAX_PIN_LEN];
    CK_ULONG user_pin_len;
    CK_RV rv, rc;

    CK_OBJECT_HANDLE h_key;
    CK_BYTE original[BIG_REQUEST];
    CK_BYTE cipher[BIG_REQUEST];
    CK_BYTE clear[BIG_REQUEST];
    CK_ULONG orig_len, cipher_len, clear_len;
    CK_BYTE init_v[8] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };

    SYSTEMTIME t1, t2;
    CK_ULONG i, iterations = 10000;
    CK_ULONG avg_time, tot_time, min_time, max_time, diff;

    slot_id = SLOT_ID;

    testcase_begin("DES3 Encrypt with mode=%s datalen=%d\n", mode, BIG_REQUEST);

    if (is_cca_token(SLOT_ID) && strcmp(mode, "ECB") == 0) {
        testcase_skip("Slot %u doesn't support DES3 ECB En/Decrypt\n",
                      (unsigned) SLOT_ID);
        return TRUE;
    }

    testcase_rw_session();
    testcase_user_login();

    mech.mechanism = CKM_DES3_KEY_GEN;
    mech.ulParameterLen = 0;
    mech.pParameter = NULL;

    // generate a DES3 key
    rc = funcs->C_GenerateKey(session, &mech, NULL, 0, &h_key);
    if (rc != CKR_OK) {
        testcase_error("C_GenerateKey rc=%s", p11_get_ckr(rc));
        goto testcase_cleanup;
    }
    // clear buffers
    memset(clear, 0, BIG_REQUEST);
    memset(original, 0, BIG_REQUEST);
    memset(cipher, 0, BIG_REQUEST);

    // encrypt some data
    orig_len = BIG_REQUEST;
    for (i = 0; i < orig_len; i++)
        original[i] = i % 255;

    if (strcmp(mode, "ECB") == 0) {
        mech.mechanism = CKM_DES3_ECB;
        mech.ulParameterLen = 0;
        mech.pParameter = NULL;
    } else if (strcmp(mode, "CBC") == 0) {
        mech.mechanism = CKM_DES3_CBC;
        mech.ulParameterLen = 8;
        mech.pParameter = init_v;
    } else {
        testcase_error("unknown mode %s in do_DES3_EncrDecr()", mode);
        rc = CKR_MECHANISM_INVALID;
        goto testcase_cleanup;
    }

    tot_time = 0;
    max_time = 0;
    min_time = 0xFFFFFFFF;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);
        rc = funcs->C_EncryptInit(session, &mech, h_key);
        if (rc != CKR_OK) {
            testcase_error("C_EncryptInit rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        cipher_len = BIG_REQUEST;
        rc = funcs->C_Encrypt(session, original, orig_len, cipher, &cipher_len);
        if (rc != CKR_OK) {
            testcase_error("C_Encrypt rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        GetSystemTime(&t2);

        diff = delta_time_us(&t1, &t2);

        tot_time += diff;

        if (diff < min_time)
            min_time = diff;

        if (diff > max_time)
            max_time = diff;
    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldus max=%ldus avg=%ldus "
           "op/s=%.3f %.3fMB/s\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time,
           (((double) (iterations * 1000) / (double) (1024 * 1024)) *
            BIG_REQUEST) / (double) tot_time);

    printf("DES3 Decrypt with mode=%s datalen=%d\n", mode, BIG_REQUEST);

    tot_time = 0;
    max_time = 0;
    min_time = 0xFFFFFFFF;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);

        rc = funcs->C_DecryptInit(session, &mech, h_key);
        if (rc != CKR_OK) {
            testcase_error("C_DecryptInit rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        clear_len = BIG_REQUEST;
        rc = funcs->C_Decrypt(session, cipher, cipher_len, clear, &clear_len);
        if (rc != CKR_OK) {
            testcase_error("C_Decrypt rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        GetSystemTime(&t2);

        diff = delta_time_us(&t1, &t2);

        tot_time += diff;

        if (diff < min_time)
            min_time = diff;

        if (diff > max_time)
            max_time = diff;
    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldus max=%ldus avg=%ldus "
           "op/s=%.3f %.3fMB/s\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time,
           (((double) (iterations * 1000) / (double) (1024 * 1024)) *
            BIG_REQUEST) / (double) tot_time);

testcase_cleanup:
    rv = funcs->C_CloseAllSessions(slot_id);
    if (rv != CKR_OK) {
        testcase_error("C_CloseAllSessions rc=%s", p11_get_ckr(rv));
        return FALSE;
    }

    return TRUE;
}

// keylength: 128...256
// mode: ECB CBC
int do_AES_EncrDecr(int keylength, const char *mode)
{
    CK_SLOT_ID slot_id;
    CK_SESSION_HANDLE session;
    CK_MECHANISM mech;
    CK_FLAGS flags;
    CK_BYTE user_pin[PKCS11_MAX_PIN_LEN];
    CK_ULONG user_pin_len;
    CK_RV rv, rc;

    CK_OBJECT_HANDLE h_key;
    CK_BYTE original[BIG_REQUEST];
    CK_BYTE cipher[BIG_REQUEST];
    CK_BYTE clear[BIG_REQUEST];
    CK_ULONG orig_len, cipher_len, clear_len;
    CK_ULONG key_len = keylength / 8;

    CK_BYTE init_v[16] = {
        0x01, 0x02, 0x03, 0x04, 0x05,
        0x06, 0x07, 0x08, 0x09, 0x0A,
        0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
        0x10
    };

    CK_ULONG i, iterations = 50000;
    SYSTEMTIME t1, t2;
    CK_ULONG avg_time, tot_time, min_time, max_time, diff;

    testcase_begin("AES Encrypt with mode=%s keylen=%ld datalen=%d\n",
                   mode, key_len * 8, BIG_REQUEST);

    slot_id = SLOT_ID;

    testcase_rw_session();
    testcase_user_login();

    mech.mechanism = CKM_AES_KEY_GEN;
    mech.ulParameterLen = 0;
    mech.pParameter = NULL;

    rc = generate_AESKey(session, key_len, CK_TRUE, &mech, &h_key);
    if (rc != CKR_OK) {
        testcase_error("C_GenerateKey rc=%s", p11_get_ckr(rc));
        goto testcase_cleanup;
    }
    // clear buffers
    memset(original, 0, BIG_REQUEST);
    memset(clear, 0, BIG_REQUEST);
    memset(cipher, 0, BIG_REQUEST);

    // encrypt some data
    orig_len = BIG_REQUEST;
    for (i = 0; i < orig_len; i++)
        original[i] = i % 255;

    if (strcmp(mode, "ECB") == 0) {
        mech.mechanism = CKM_AES_ECB;
        mech.ulParameterLen = 0;
        mech.pParameter = NULL;
    } else if (strcmp(mode, "CBC") == 0) {
        mech.mechanism = CKM_AES_CBC;
        mech.ulParameterLen = 16;
        mech.pParameter = init_v;
    } else {
        testcase_error("unknown mode %s in do_AES_EncrDecr()", mode);
        rc = CKR_MECHANISM_INVALID;
        goto testcase_cleanup;
    }

    tot_time = 0;
    max_time = 0;
    min_time = 0xFFFFFFFF;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);
        rc = funcs->C_EncryptInit(session, &mech, h_key);
        if (rc != CKR_OK) {
            testcase_error("C_EncryptInit rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        cipher_len = BIG_REQUEST;
        rc = funcs->C_Encrypt(session, original, orig_len, cipher, &cipher_len);
        if (rc != CKR_OK) {
            testcase_error("C_Encrypt rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        GetSystemTime(&t2);
        diff = delta_time_us(&t1, &t2);
        tot_time += diff;
        if (diff < min_time)
            min_time = diff;

        if (diff > max_time)
            max_time = diff;
    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldus max=%ldus avg=%ldus "
           "op/s=%.3f %.3fMB/s\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time,
           (((double) (iterations * 1000) / (double) (1024 * 1024)) *
            BIG_REQUEST) / (double) tot_time);

    printf("AES Decrypt with mode=%s keylen=%ld datalen=%d\n",
           mode, key_len * 8, BIG_REQUEST);

    tot_time = 0;
    max_time = 0;
    min_time = 0xFFFFFFFF;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);
        rc = funcs->C_DecryptInit(session, &mech, h_key);
        if (rc != CKR_OK) {
            testcase_error("C_DecryptInit rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        clear_len = BIG_REQUEST;
        rc = funcs->C_Decrypt(session, cipher, cipher_len, clear, &clear_len);
        if (rc != CKR_OK) {
            testcase_error("C_Decrypt rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        GetSystemTime(&t2);
        diff = delta_time_us(&t1, &t2);
        tot_time += diff;
        if (diff < min_time)
            min_time = diff;

        if (diff > max_time)
            max_time = diff;

    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldus max=%ldus avg=%ldus "
           "op/s=%.3f %.3fMB/s\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time,
           (((double) (iterations * 1000) / (double) (1024 * 1024)) *
            BIG_REQUEST) / (double) tot_time);


testcase_cleanup:
    rv = funcs->C_CloseAllSessions(slot_id);
    if (rv != CKR_OK) {
        testcase_error("C_CloseAllSessions rc=%s", p11_get_ckr(rv));
        return FALSE;
    }

    return TRUE;
}

int do_SHA(const char *mode)
{
    CK_SLOT_ID slot_id;
    CK_SESSION_HANDLE session;
    CK_MECHANISM mech;
    CK_FLAGS flags;
    CK_RV rc, rv;

    CK_BYTE data[BIG_REQUEST];
    CK_BYTE hash[MAX_HASH_LEN];
    CK_ULONG data_len, hash_len, h_len;

    SYSTEMTIME t1, t2;
    CK_ULONG diff, avg_time, tot_time, min_time, max_time;
    CK_ULONG i, iterations = 20000;

    printf("SHA (%s) with datalen=%d\n", mode, BIG_REQUEST);

    slot_id = SLOT_ID;

    testcase_rw_session();

    mech.ulParameterLen = 0;
    mech.pParameter = NULL;

    if (strcmp(mode, "SHA1") == 0) {
        mech.mechanism = CKM_SHA_1;
        hash_len = SHA1_HASH_LEN;
    } else if (strcmp(mode, "SHA256") == 0) {
        mech.mechanism = CKM_SHA256;
        hash_len = SHA256_HASH_LEN;
    } else if (strcmp(mode, "SHA512") == 0) {
        mech.mechanism = CKM_SHA512;
        hash_len = SHA512_HASH_LEN;
    } else {
        testcase_error("unknown mode %s in do_SHA()", mode);
        rc = CKR_MECHANISM_INVALID;
        goto testcase_cleanup;
    }

    // generate some data to hash
    //
    data_len = BIG_REQUEST;
    memset(data, 0, data_len);
    for (i = 0; i < data_len; i++)
        data[i] = i % 255;

    tot_time = 0;
    max_time = 0;
    min_time = 0xFFFFFFFF;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);

        rc = funcs->C_DigestInit(session, &mech);
        if (rc != CKR_OK) {
            testcase_error("C_DigestInit rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        h_len = sizeof(hash);
        rc = funcs->C_Digest(session, data, data_len, hash, &h_len);
        if (rc != CKR_OK) {
            testcase_error("C_Digest rc=%s", p11_get_ckr(rc));
            goto testcase_cleanup;
        }

        if (h_len != hash_len) {
            testcase_error
                ("returned hashlen %ld doesn't match to expected len %ld\n",
                 h_len, hash_len);
            rc = CKR_FUNCTION_FAILED;
            goto testcase_cleanup;
        }

        GetSystemTime(&t2);
        diff = delta_time_us(&t1, &t2);
        tot_time += diff;
        if (diff < min_time)
            min_time = diff;

        if (diff > max_time)
            max_time = diff;
    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldus max=%ldus avg=%ldus "
           "op/s=%.3f %.3fMB/s\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time,
           (((double) (iterations * 1000) / (double) (1024 * 1024)) *
            BIG_REQUEST) / (double) tot_time);

testcase_cleanup:
    rv = funcs->C_CloseAllSessions(slot_id);
    if (rv != CKR_OK) {
        testcase_error("C_CloseAllSessions rv=%s", p11_get_ckr(rv));
        return FALSE;
    }

    return TRUE;
}


int do_DummyFunction(void)
{
#if DUMMY
    CK_SLOT_ID slot_id;
    CK_ULONG i, diff, avg_time, min_time, max_time;
    CK_ULONG iterations = 1000;
    SYSTEMTIME t1, t2;

    testcase_begin("do_DummyFunction...");

    slot_id = SLOT_ID;

    tot_time = 0;
    max_time = 0;
    min_time = 0xFFFFFFFF;

    for (i = 0; i < iterations + 2; i++) {
        GetSystemTime(&t1);
        DummyFunction(slot_id);

        GetSystemTime(&t2);

        diff = delta_time_us(&t1, &t2);
        tot_time += diff;

        if (diff < min_time)
            min_time = diff;

        if (diff > max_time)
            max_time = diff;
    }

    tot_time -= min_time;
    tot_time -= max_time;
    avg_time = tot_time / iterations;

    // us -> ms
    tot_time /= 1000;
    min_time /= 1000;
    max_time /= 1000;

    printf("%ld iterations: total=%ldms min=%ldms max=%ldms avg=%ldms "
           "op/s=%.3f\n\n", iterations, tot_time, min_time, max_time,
           avg_time, (double) (iterations * 1000) / (double) tot_time);
#endif

    return TRUE;
}

void speed_usage(char *fct)
{
    printf("usage:  %s -slot <num>", fct);
    printf(" [-rsa_keygen] [-rsa_signverify]");
    printf(" [-rsa_endecrypt] [-des3] [-aes] [-sha]");
    printf(" [-h] \n\n");

    return;
}

int main(int argc, char **argv)
{
    CK_C_INITIALIZE_ARGS cinit_args;
    int rc, i;
    int do_rsa_keygen = 0;
    int do_rsa_signverify = 0;
    int do_rsa_endecrypt = 0;
    int do_des3_endecrypt = 0;
    int do_aes_endecrypt = 0;
    int do_sha = 0;

    SLOT_ID = 1000;

    for (i = 1; i < argc; i++) {
        if (strcmp(argv[i], "-slot") == 0) {
            if (i + 1 >= argc) {
                printf("Slot number missing\n");
                return -1;
            }
            SLOT_ID = atoi(argv[i + 1]);
            i++;
            continue;
        }
        if (strcmp(argv[i], "-rsa_keygen") == 0) {
            do_rsa_keygen = 1;
        } else if (strcmp(argv[i], "-rsa_signverify") == 0) {
            do_rsa_signverify = 1;
        } else if (strcmp(argv[i], "-rsa_endecrypt") == 0) {
            do_rsa_endecrypt = 1;
        } else if (strcmp(argv[i], "-des3") == 0) {
            do_des3_endecrypt = 1;
        } else if (strcmp(argv[i], "-aes") == 0) {
            do_aes_endecrypt = 1;
        } else if (strcmp(argv[i], "-sha") == 0) {
            do_sha = 1;
        } else if (strcmp(argv[i], "-h") == 0) {
            speed_usage(argv[0]);
            return 0;
        } else {
            printf("unknown option '%s'\n", argv[i]);
            speed_usage(argv[0]);
            return 1;
        }
    }

    // error if slot has not been identified.
    if (SLOT_ID == 1000) {
        printf("Please specify the slot to be tested.\n");
        speed_usage(argv[0]);
        return 1;
    }

    if (do_rsa_keygen + do_rsa_signverify + do_rsa_endecrypt
        + do_des3_endecrypt + do_aes_endecrypt + do_sha == 0) {
        do_rsa_keygen = 1;
        do_rsa_signverify = 1;
        do_rsa_endecrypt = 1;
        do_des3_endecrypt = 1;
        do_aes_endecrypt = 1;
        do_sha = 1;
    }

    printf("Using slot #%lu...\n\n", SLOT_ID);

    rc = do_GetFunctionList();
    if (!rc)
        return rc;

    memset(&cinit_args, 0x0, sizeof(cinit_args));
    cinit_args.flags = CKF_OS_LOCKING_OK;

    funcs->C_Initialize(&cinit_args);

    if (do_rsa_keygen) {
        rc = do_RSA_KeyGen(1024);
        if (!rc)
            return rc;
        rc = do_RSA_KeyGen(2048);
        if (!rc)
            return rc;
        rc = do_RSA_KeyGen(4096);
        if (!rc)
            return rc;
    }

    if (do_rsa_signverify) {
        rc = do_RSA_PKCS_SignVerify(1024);
        if (!rc)
            return rc;
        rc = do_RSA_PKCS_SignVerify(2048);
        if (!rc)
            return rc;
        rc = do_RSA_PKCS_SignVerify(4096);
        if (!rc)
            return rc;
    }

    if (do_rsa_endecrypt) {
        rc = do_RSA_PKCS_EncryptDecrypt(1024);
        if (!rc)
            return rc;
        rc = do_RSA_PKCS_EncryptDecrypt(2048);
        if (!rc)
            return rc;
        rc = do_RSA_PKCS_EncryptDecrypt(4096);
        if (!rc)
            return rc;
    }

    if (do_des3_endecrypt) {
        rc = do_DES3_EncrDecr("ECB");
        if (!rc)
            return rc;
        rc = do_DES3_EncrDecr("CBC");
        if (!rc)
            return rc;
    }

    if (do_aes_endecrypt) {
        rc = do_AES_EncrDecr(128, "ECB");
        if (!rc)
            return rc;
        rc = do_AES_EncrDecr(128, "CBC");
        if (!rc)
            return rc;
        rc = do_AES_EncrDecr(192, "ECB");
        if (!rc)
            return rc;
        rc = do_AES_EncrDecr(192, "CBC");
        if (!rc)
            return rc;
        rc = do_AES_EncrDecr(256, "ECB");
        if (!rc)
            return rc;
        rc = do_AES_EncrDecr(256, "CBC");
        if (!rc)
            return rc;
    }

    if (do_sha) {
        rc = do_SHA("SHA1");
        if (!rc)
            return rc;
        rc = do_SHA("SHA256");
        if (!rc)
            return rc;
        rc = do_SHA("SHA512");
        if (!rc)
            return rc;
    }

    funcs->C_Finalize(NULL);

    return 0;
}
