#include "config.h"

#define LIBSSH_STATIC

#include "torture.h"

#include "torture_key.h"

#include "torture_pki.h"

#include "pki.c"

#include <sys/stat.h>

#include <fcntl.h>

#define LIBSSH_ED25519_TESTKEY "libssh_testkey.id_ed25519"

#define LIBSSH_ED25519_TESTKEY_PASSPHRASE "libssh_testkey_passphrase.id_ed25519"

const char template[] = "temp_dir_XXXXXX";

const unsigned char HASH[] = "12345678901234567890";

const uint8_t ref_signature[ED25519_SIG_LEN]=

    "\xbb\x8d\x55\x9f\x06\x14\x39\x24\xb4\xe1\x5a\x57\x3d\x9d\xbe\x22"

    "\x1b\xc1\x32\xd5\x55\x16\x00\x64\xce\xb4\xc3\xd2\xe3\x6f\x5e\x8d"

    "\x10\xa3\x18\x93\xdf\xa4\x96\x81\x11\x8e\x1e\x26\x14\x8a\x08\x1b"

    "\x01\x6a\x60\x59\x9c\x4a\x55\xa3\x16\x56\xf6\xc4\x50\x42\x7f\x03";

struct pki_st {

    char *cwd;

    char *temp_dir;

};

static int setup_ed25519_key(void **state)

{

    const char *keystring = NULL;

    struct pki_st *test_state = NULL;

    char *cwd = NULL;

    char *tmp_dir = NULL;

    int rc = 0;

    test_state = (struct pki_st *)malloc(sizeof(struct pki_st));

    assert_non_null(test_state);

    cwd = torture_get_current_working_dir();

    assert_non_null(cwd);

    tmp_dir = torture_make_temp_dir(template);

    assert_non_null(tmp_dir);

    test_state->cwd = cwd;

    test_state->temp_dir = tmp_dir;

    *state = test_state;

    rc = torture_change_dir(tmp_dir);

    assert_int_equal(rc, 0);

    printf("Changed directory to: %s\n", tmp_dir);

    keystring = torture_get_openssh_testkey(SSH_KEYTYPE_ED25519, 0);

    torture_write_file(LIBSSH_ED25519_TESTKEY, keystring);

    keystring = torture_get_openssh_testkey(SSH_KEYTYPE_ED25519, 1);

    torture_write_file(LIBSSH_ED25519_TESTKEY_PASSPHRASE, keystring);

    torture_write_file(LIBSSH_ED25519_TESTKEY ".pub",

                       torture_get_testkey_pub(SSH_KEYTYPE_ED25519));

    torture_write_file(LIBSSH_ED25519_TESTKEY "-cert.pub",

                       torture_get_testkey_pub(SSH_KEYTYPE_ED25519_CERT01));

    return 0;

}

static int teardown(void **state) {

    struct pki_st *test_state = NULL;

    int rc = 0;

    test_state = *((struct pki_st **)state);

    assert_non_null(test_state);

    assert_non_null(test_state->cwd);

    assert_non_null(test_state->temp_dir);

    rc = torture_change_dir(test_state->cwd);

    assert_int_equal(rc, 0);

    rc = torture_rmdirs(test_state->temp_dir);

    assert_int_equal(rc, 0);

    SAFE_FREE(test_state->temp_dir);

    SAFE_FREE(test_state->cwd);

    SAFE_FREE(test_state);

    return 0;

}

static void torture_pki_ed25519_import_pubkey_file(void **state)

{

    ssh_key pubkey = NULL;

    int rc;

    (void)state;

    /* The key doesn't have the hostname as comment after the key */

    rc = ssh_pki_import_pubkey_file(LIBSSH_ED25519_TESTKEY ".pub", &pubkey);

    assert_return_code(rc, errno);

    assert_non_null(pubkey);

    SSH_KEY_FREE(pubkey);

}

static void torture_pki_ed25519_import_pubkey_from_openssh_privkey(void **state)

{

    ssh_key pubkey = NULL;

    int rc;

    (void)state;

    /* The key doesn't have the hostname as comment after the key */

    rc = ssh_pki_import_pubkey_file(LIBSSH_ED25519_TESTKEY_PASSPHRASE, &pubkey);

    assert_return_code(rc, errno);

    assert_non_null(pubkey);

    SSH_KEY_FREE(pubkey);

}

static void torture_pki_ed25519_import_privkey_base64(void **state)

{

    int rc;

    char *key_str = NULL;

    ssh_key key = NULL;

    const char *passphrase = torture_get_testkey_passphrase();

    enum ssh_keytypes_e type;

    (void) state; /* unused */

    key_str = torture_pki_read_file(LIBSSH_ED25519_TESTKEY);

    assert_non_null(key_str);

    rc = ssh_pki_import_privkey_base64(key_str, passphrase, NULL, NULL, &key);

    assert_true(rc == 0);

    assert_non_null(key);

    type = ssh_key_type(key);

    assert_true(type == SSH_KEYTYPE_ED25519);

    rc = ssh_key_is_private(key);

    assert_true(rc == 1);

    rc = ssh_key_is_public(key);

    assert_true(rc == 1);

    free(key_str);

    SSH_KEY_FREE(key);

}

static void torture_pki_ed25519_import_privkey_base64_comment(void **state)

{

    int rc, file_str_len;

    const char *comment_str = "#this is line-comment\n#this is another\n";

    char *key_str = NULL, *file_str = NULL;

    ssh_key key = NULL;

    const char *passphrase = torture_get_testkey_passphrase();

    enum ssh_keytypes_e type;

    (void) state; /* unused */

    key_str = torture_pki_read_file(LIBSSH_ED25519_TESTKEY);

    assert_non_null(key_str);

    file_str_len = strlen(comment_str) + strlen(key_str) + 1;

    file_str = malloc(file_str_len);

    assert_non_null(file_str);

    rc = snprintf(file_str, file_str_len, "%s%s", comment_str, key_str);

    assert_int_equal(rc, file_str_len - 1);

    rc = ssh_pki_import_privkey_base64(file_str, passphrase, NULL, NULL, &key);

    assert_true(rc == 0);

    assert_non_null(key);

    type = ssh_key_type(key);

    assert_true(type == SSH_KEYTYPE_ED25519);

    rc = ssh_key_is_private(key);

    assert_true(rc == 1);

    rc = ssh_key_is_public(key);

    assert_true(rc == 1);

    free(key_str);

    free(file_str);

    SSH_KEY_FREE(key);

}

static void torture_pki_ed25519_import_privkey_base64_whitespace(void **state)

{

    int rc, file_str_len;

    const char *whitespace_str = "      \n\t\t\t\t\t\n\n\n\n\n";

    char *key_str = NULL, *file_str = NULL;

    ssh_key key = NULL;

    const char *passphrase = torture_get_testkey_passphrase();

    enum ssh_keytypes_e type;

    (void) state; /* unused */

    key_str = torture_pki_read_file(LIBSSH_ED25519_TESTKEY);

    assert_non_null(key_str);

    file_str_len = strlen(whitespace_str) + strlen(key_str) + 1;

    file_str = malloc(file_str_len);

    assert_non_null(file_str);

    rc = snprintf(file_str, file_str_len, "%s%s", whitespace_str, key_str);

    assert_int_equal(rc, file_str_len - 1);

    rc = ssh_pki_import_privkey_base64(file_str, passphrase, NULL, NULL, &key);

    assert_true(rc == 0);

    assert_non_null(key);

    type = ssh_key_type(key);

    assert_true(type == SSH_KEYTYPE_ED25519);

    rc = ssh_key_is_private(key);

    assert_true(rc == 1);

    rc = ssh_key_is_public(key);

    assert_true(rc == 1);

    free(key_str);

    free(file_str);

    SSH_KEY_FREE(key);

}

static void torture_pki_ed25519_import_export_privkey_base64(void **state)

{

    char *b64_key = NULL;

    ssh_key key = NULL;

    const char *passphrase = torture_get_testkey_passphrase();

    enum ssh_keytypes_e type;

    int rc;

    (void) state; /* unused */

    rc = ssh_pki_import_privkey_base64(torture_get_openssh_testkey(SSH_KEYTYPE_ED25519,

                                                                   false),

                                       passphrase,

                                       NULL,

                                       NULL,

                                       &key);

    assert_return_code(rc, errno);

    assert_non_null(key);

    type = ssh_key_type(key);

    assert_true(type == SSH_KEYTYPE_ED25519);

    rc = ssh_key_is_private(key);

    assert_true(rc == 1);

    rc = ssh_pki_export_privkey_base64(key,

                                       passphrase,

                                       NULL,

                                       NULL,

                                       &b64_key);

    assert_return_code(rc, errno);

    assert_non_null(b64_key);

    SSH_KEY_FREE(key);

    rc = ssh_pki_import_privkey_base64(b64_key,

                                       passphrase,

                                       NULL,

                                       NULL,

                                       &key);

    assert_return_code(rc, errno);

    assert_non_null(key);

    type = ssh_key_type(key);

    assert_true(type == SSH_KEYTYPE_ED25519);

    rc = ssh_key_is_private(key);

    assert_true(rc == 1);

    SSH_STRING_FREE_CHAR(b64_key);

    SSH_KEY_FREE(key);

}

static void torture_pki_ed25519_publickey_from_privatekey(void **state)

{

    int rc;

    ssh_key key = NULL;

    ssh_key pubkey = NULL;

    const char *passphrase = NULL;

    const char *keystring = NULL;

    (void) state; /* unused */

    keystring = torture_get_openssh_testkey(SSH_KEYTYPE_ED25519, 0);

    rc = ssh_pki_import_privkey_base64(keystring,

                                       passphrase,

                                       NULL,

                                       NULL,

                                       &key);

    assert_true(rc == 0);

    assert_non_null(key);

    rc = ssh_key_is_private(key);

    assert_true(rc == 1);

    rc = ssh_pki_export_privkey_to_pubkey(key, &pubkey);

    assert_true(rc == SSH_OK);

    assert_non_null(pubkey);

    SSH_KEY_FREE(key);

    SSH_KEY_FREE(pubkey);

}

static void torture_pki_ed25519_import_cert_file(void **state)

{

    int rc;

    ssh_key cert = NULL;

    enum ssh_keytypes_e type;

    (void) state; /* unused */

    rc = ssh_pki_import_cert_file(LIBSSH_ED25519_TESTKEY "-cert.pub", &cert);

    assert_true(rc == 0);

    assert_non_null(cert);

    type = ssh_key_type(cert);

    assert_true(type == SSH_KEYTYPE_ED25519_CERT01);

    rc = ssh_key_is_public(cert);

    assert_true(rc == 1);

    SSH_KEY_FREE(cert);

}

static void torture_pki_ed25519_publickey_base64(void **state)

{

    enum ssh_keytypes_e type;

    char *b64_key = NULL, *key_buf = NULL, *p = NULL;

    const char *q = NULL;

    ssh_key key = NULL;

    int rc;

    (void) state; /* unused */

    key_buf = strdup(torture_get_testkey_pub(SSH_KEYTYPE_ED25519));

    assert_non_null(key_buf);

    q = p = key_buf;

    while (p != NULL && *p != '\0' && *p != ' ') p++;

    if (p != NULL) {

        *p = '\0';

    }

    type = ssh_key_type_from_name(q);

    assert_true(type == SSH_KEYTYPE_ED25519);

    q = ++p;

    while (p != NULL && *p != '\0' && *p != ' ') p++;

    if (p != NULL) {

        *p = '\0';

    }

    rc = ssh_pki_import_pubkey_base64(q, type, &key);

    assert_true(rc == 0);

    assert_non_null(key);

    rc = ssh_pki_export_pubkey_base64(key, &b64_key);

    assert_true(rc == 0);

    assert_non_null(b64_key);

    assert_string_equal(q, b64_key);

    free(b64_key);

    free(key_buf);

    SSH_KEY_FREE(key);

}

static void torture_pki_ed25519_generate_pubkey_from_privkey(void **state)

{

    char pubkey_generated[4096] = {0};

    ssh_key privkey = NULL;

    ssh_key pubkey = NULL;

    int rc;

    int len;

    (void) state; /* unused */

    /* remove the public key, generate it from the private key and write it. */

    unlink(LIBSSH_ED25519_TESTKEY ".pub");

    rc = ssh_pki_import_privkey_file(LIBSSH_ED25519_TESTKEY,

                                     NULL,

                                     NULL,

                                     NULL,

                                     &privkey);

    assert_true(rc == 0);

    rc = ssh_pki_export_privkey_to_pubkey(privkey, &pubkey);

    assert_true(rc == SSH_OK);

    assert_non_null(pubkey);

    rc = ssh_pki_export_pubkey_file(pubkey, LIBSSH_ED25519_TESTKEY ".pub");

    assert_true(rc == 0);

    rc = torture_read_one_line(LIBSSH_ED25519_TESTKEY ".pub",

                               pubkey_generated,

                               sizeof(pubkey_generated));

    assert_true(rc == 0);

    len = torture_pubkey_len(torture_get_testkey_pub(SSH_KEYTYPE_ED25519));

    assert_memory_equal(torture_get_testkey_pub(SSH_KEYTYPE_ED25519),

                        pubkey_generated,

                        len);

    SSH_KEY_FREE(privkey);

    SSH_KEY_FREE(pubkey);

}

static void torture_pki_ed25519_generate_key(void **state)

{

    int rc;

    ssh_key key = NULL, pubkey = NULL;

    ssh_signature sign = NULL;

    enum ssh_keytypes_e type = SSH_KEYTYPE_UNKNOWN;

    const char *type_char = NULL;

    ssh_session session=ssh_new();

    uint8_t *raw_sig_data = NULL;

    (void) state;

    /* Skip test if in FIPS mode */

    if (ssh_fips_mode()) {

        skip();

    }

    assert_non_null(session);

    rc = ssh_pki_generate(SSH_KEYTYPE_ED25519, 256, &key);

    assert_true(rc == SSH_OK);

    assert_non_null(key);

    rc = ssh_pki_export_privkey_to_pubkey(key, &pubkey);

    assert_int_equal(rc, SSH_OK);

    assert_non_null(pubkey);

    sign = pki_do_sign(key, HASH, 20, SSH_DIGEST_AUTO);

    assert_non_null(sign);

    rc = ssh_pki_signature_verify(session, sign, pubkey, HASH, 20);

    assert_true(rc == SSH_OK);

    type = ssh_key_type(key);

    assert_true(type == SSH_KEYTYPE_ED25519);

    type_char = ssh_key_type_to_char(type);

    assert_true(strcmp(type_char, "ssh-ed25519") == 0);

    /* try an invalid signature */

#ifdef HAVE_OPENSSL_ED25519

    raw_sig_data = ssh_string_data(sign->raw_sig);

#else

    raw_sig_data = (uint8_t *)sign->ed25519_sig;

#endif

    assert_non_null(raw_sig_data);

    (raw_sig_data)[3]^= 0xff;

    rc = ssh_pki_signature_verify(session, sign, pubkey, HASH, 20);

    assert_true(rc == SSH_ERROR);

    ssh_signature_free(sign);

    SSH_KEY_FREE(key);

    SSH_KEY_FREE(pubkey);

    ssh_free(session);

}

static void torture_pki_ed25519_cert_verify(void **state)

{

    int rc;

    ssh_key privkey = NULL, cert = NULL;

    ssh_signature sign = NULL;

    ssh_session session=ssh_new();

    (void) state;

    /* Skip test if in FIPS mode */

    if (ssh_fips_mode()) {

        skip();

    }

    assert_non_null(session);

    rc = ssh_pki_import_privkey_file(LIBSSH_ED25519_TESTKEY,

                                     NULL,

                                     NULL,

                                     NULL,

                                     &privkey);

    assert_true(rc == 0);

    assert_non_null(privkey);

    rc = ssh_pki_import_cert_file(LIBSSH_ED25519_TESTKEY "-cert.pub", &cert);

    assert_true(rc == 0);

    assert_non_null(cert);

    sign = pki_do_sign(privkey, HASH, 20, SSH_DIGEST_AUTO);

    assert_non_null(sign);

    rc = ssh_pki_signature_verify(session, sign, cert, HASH, 20);

    assert_true(rc == SSH_OK);

    ssh_signature_free(sign);

    SSH_KEY_FREE(privkey);

    SSH_KEY_FREE(cert);

    ssh_free(session);

}

static void torture_pki_ed25519_write_privkey(void **state)

{

    ssh_key origkey = NULL;

    ssh_key privkey = NULL;

    int rc;

    (void) state; /* unused */

    rc = ssh_pki_import_privkey_file(LIBSSH_ED25519_TESTKEY,

            NULL,

            NULL,

            NULL,

            &origkey);

    assert_true(rc == 0);

    assert_non_null(origkey);

    unlink(LIBSSH_ED25519_TESTKEY);

    rc = ssh_pki_export_privkey_file(origkey,

            NULL,

            NULL,

            NULL,

            LIBSSH_ED25519_TESTKEY);

    assert_true(rc == 0);

    rc = ssh_pki_import_privkey_file(LIBSSH_ED25519_TESTKEY,

            NULL,

            NULL,

            NULL,

            &privkey);

    assert_true(rc == 0);

    assert_non_null(privkey);

    rc = ssh_key_cmp(origkey, privkey, SSH_KEY_CMP_PRIVATE);

    assert_true(rc == 0);

    unlink(LIBSSH_ED25519_TESTKEY);

    SSH_KEY_FREE(privkey);

    /* do the same with passphrase */

    rc = ssh_pki_export_privkey_file(origkey,

            torture_get_testkey_passphrase(),

            NULL,

            NULL,

            LIBSSH_ED25519_TESTKEY);

    assert_true(rc == 0);

    rc = ssh_pki_import_privkey_file(LIBSSH_ED25519_TESTKEY,

            NULL,

            NULL,

            NULL,

            &privkey);

    /* opening without passphrase should fail */

    assert_true(rc == SSH_ERROR);

    rc = ssh_pki_import_privkey_file(LIBSSH_ED25519_TESTKEY,

            torture_get_testkey_passphrase(),

            NULL,

            NULL,

            &privkey);

    assert_true(rc == 0);

    assert_non_null(privkey);

    rc = ssh_key_cmp(origkey, privkey, SSH_KEY_CMP_PRIVATE);

    assert_true(rc == 0);

    unlink(LIBSSH_ED25519_TESTKEY);

    SSH_KEY_FREE(origkey);

    SSH_KEY_FREE(privkey);

    /* Test with passphrase */

    rc = ssh_pki_import_privkey_file(LIBSSH_ED25519_TESTKEY_PASSPHRASE,

                                     torture_get_testkey_passphrase(),

                                     NULL,

                                     NULL,

                                     &origkey);

    assert_true(rc == 0);

    assert_non_null(origkey);

    unlink(LIBSSH_ED25519_TESTKEY_PASSPHRASE);

    rc = ssh_pki_export_privkey_file(origkey,

                                     torture_get_testkey_passphrase(),

                                     NULL,

                                     NULL,

                                     LIBSSH_ED25519_TESTKEY_PASSPHRASE);

    assert_true(rc == 0);

    /* Test with invalid passphrase */

    rc = ssh_pki_import_privkey_file(LIBSSH_ED25519_TESTKEY_PASSPHRASE,

                                     "invalid secret",

                                     NULL,

                                     NULL,

                                     &privkey);

    assert_true(rc == SSH_ERROR);

    rc = ssh_pki_import_privkey_file(LIBSSH_ED25519_TESTKEY_PASSPHRASE,

                                     torture_get_testkey_passphrase(),

                                     NULL,

                                     NULL,

                                     &privkey);

    assert_true(rc == 0);

    assert_non_null(privkey);

    rc = ssh_key_cmp(origkey, privkey, SSH_KEY_CMP_PRIVATE);

    assert_true(rc == 0);

    SSH_KEY_FREE(origkey);

    SSH_KEY_FREE(privkey);

}

static void torture_pki_ed25519_sign(void **state)

{

    ssh_key privkey = NULL;

    ssh_signature sig = NULL;

    ssh_string blob = NULL;

    const char *keystring = NULL;

    int rc;

    /* Skip test if in FIPS mode */

    if (ssh_fips_mode()) {

        skip();

    }

    (void)state;

    keystring = torture_get_openssh_testkey(SSH_KEYTYPE_ED25519, 0);

    rc = ssh_pki_import_privkey_base64(keystring,

                                       NULL,

                                       NULL,

                                       NULL,

                                       &privkey);

    assert_true(rc == SSH_OK);

    assert_non_null(privkey);

    sig = pki_do_sign(privkey, HASH, sizeof(HASH), SSH_DIGEST_AUTO);

    assert_non_null(sig);

    blob = pki_signature_to_blob(sig);

    assert_non_null(blob);

    assert_int_equal(ssh_string_len(blob), sizeof(ref_signature));

    assert_memory_equal(ssh_string_data(blob), ref_signature,

                        sizeof(ref_signature));

    ssh_signature_free(sig);

    SSH_KEY_FREE(privkey);

    SSH_STRING_FREE(blob);

}

static void torture_pki_ed25519_sign_openssh_privkey_passphrase(void **state)

{

    ssh_key privkey = NULL;

    ssh_signature sig = NULL;

    ssh_string blob = NULL;

    const char *keystring = NULL;

    int rc;

    /* Skip test if in FIPS mode */

    if (ssh_fips_mode()) {

        skip();

    }

    (void)state;

    keystring = torture_get_openssh_testkey(SSH_KEYTYPE_ED25519, 1);

    rc = ssh_pki_import_privkey_base64(keystring,

                                       torture_get_testkey_passphrase(),

                                       NULL,

                                       NULL,

                                       &privkey);

    assert_true(rc == SSH_OK);

    assert_non_null(privkey);

    sig = pki_do_sign(privkey, HASH, sizeof(HASH), SSH_DIGEST_AUTO);

    assert_non_null(sig);

    blob = pki_signature_to_blob(sig);

    assert_non_null(blob);

    assert_int_equal(ssh_string_len(blob), sizeof(ref_signature));

    assert_memory_equal(ssh_string_data(blob), ref_signature,

                        sizeof(ref_signature));

    ssh_signature_free(sig);

    SSH_KEY_FREE(privkey);

    SSH_STRING_FREE(blob);

}

#ifdef HAVE_OPENSSL_ED25519

static void torture_pki_ed25519_sign_pkcs8_privkey(void **state)

{

    ssh_key privkey = NULL;

    ssh_signature sig = NULL;

    ssh_string blob = NULL;

    const char *keystring = NULL;

    int rc;

    /* Skip test if in FIPS mode */

    if (ssh_fips_mode()) {

        skip();

    }

    (void)state;

    keystring = torture_get_testkey(SSH_KEYTYPE_ED25519, 0);

    rc = ssh_pki_import_privkey_base64(keystring,

                                       NULL,

                                       NULL,

                                       NULL,

                                       &privkey);

    assert_true(rc == SSH_OK);

    assert_non_null(privkey);

    sig = pki_do_sign(privkey, HASH, sizeof(HASH), SSH_DIGEST_AUTO);

    assert_non_null(sig);

    blob = pki_signature_to_blob(sig);

    assert_non_null(blob);

    assert_int_equal(ssh_string_len(blob), sizeof(ref_signature));

    assert_memory_equal(ssh_string_data(blob), ref_signature,

                        sizeof(ref_signature));

    ssh_signature_free(sig);

    SSH_KEY_FREE(privkey);

    SSH_STRING_FREE(blob);

}

static void torture_pki_ed25519_sign_pkcs8_privkey_passphrase(void **state)

{

    ssh_key privkey = NULL;

    ssh_signature sig = NULL;

    ssh_string blob = NULL;

    const char *keystring = NULL;

    int rc;

    /* Skip test if in FIPS mode */

    if (ssh_fips_mode()) {

        skip();

    }

    (void)state;

    keystring = torture_get_testkey(SSH_KEYTYPE_ED25519, 1);

    rc = ssh_pki_import_privkey_base64(keystring,

                                       torture_get_testkey_passphrase(),

                                       NULL,

                                       NULL,

                                       &privkey);

    assert_true(rc == SSH_OK);

    assert_non_null(privkey);

    sig = pki_do_sign(privkey, HASH, sizeof(HASH), SSH_DIGEST_AUTO);

    assert_non_null(sig);

    blob = pki_signature_to_blob(sig);

    assert_non_null(blob);

    assert_int_equal(ssh_string_len(blob), sizeof(ref_signature));

    assert_memory_equal(ssh_string_data(blob), ref_signature,

                        sizeof(ref_signature));

    ssh_signature_free(sig);

    SSH_KEY_FREE(privkey);

    SSH_STRING_FREE(blob);

}

#endif /* HAVE_OPENSSL_ED25519 */

static void torture_pki_ed25519_verify(void **state){

    ssh_key pubkey = NULL;

    ssh_signature sig = NULL;

    ssh_session session = NULL;

    ssh_string blob = ssh_string_new(ED25519_SIG_LEN);

    char *pkey_ptr = strdup(strchr(torture_get_testkey_pub(SSH_KEYTYPE_ED25519), ' ') + 1);

    char *ptr = NULL;

    uint8_t *raw_sig_data = NULL;

    int rc;

    (void) state;

    /* Skip test if in FIPS mode */

    if (ssh_fips_mode()) {

        skip();

    }

    session = ssh_new();

    assert_non_null(session);

    /* remove trailing comment */

    ptr = strchr(pkey_ptr, ' ');

    if(ptr != NULL){

        *ptr = '\0';

    }

    rc = ssh_pki_import_pubkey_base64(pkey_ptr, SSH_KEYTYPE_ED25519, &pubkey);

    assert_true(rc == SSH_OK);

    assert_non_null(pubkey);

    ssh_string_fill(blob, ref_signature, ED25519_SIG_LEN);

    sig = pki_signature_from_blob(pubkey, blob, SSH_KEYTYPE_ED25519, SSH_DIGEST_AUTO);

    assert_non_null(sig);

    rc = ssh_pki_signature_verify(session, sig, pubkey, HASH, sizeof(HASH));

    assert_true(rc == SSH_OK);

    /* Alter signature and expect verification error */

#if defined(HAVE_OPENSSL_ED25519)

    raw_sig_data = ssh_string_data(sig->raw_sig);

#else

    raw_sig_data = (uint8_t *)sig->ed25519_sig;

#endif

    assert_non_null(raw_sig_data);

    (raw_sig_data)[3]^= 0xff;

    rc = ssh_pki_signature_verify(session, sig, pubkey, HASH, sizeof(HASH));

    assert_true(rc == SSH_ERROR);

    ssh_signature_free(sig);

    SSH_KEY_FREE(pubkey);

    SSH_STRING_FREE(blob);

    free(pkey_ptr);

    ssh_free(session);

}

static void torture_pki_ed25519_verify_bad(void **state){

    ssh_key pubkey = NULL;

    ssh_signature sig = NULL;

    ssh_session session = NULL;

    ssh_string blob = ssh_string_new(ED25519_SIG_LEN);

    char *pkey_ptr = strdup(strchr(torture_get_testkey_pub(SSH_KEYTYPE_ED25519), ' ') + 1);

    char *ptr = NULL;

    int rc;

    int i;

    (void) state;

    /* Skip test if in FIPS mode */

    if (ssh_fips_mode()) {

        skip();

    }

    session = ssh_new();

    assert_non_null(session);

    /* remove trailing comment */

    ptr = strchr(pkey_ptr, ' ');

    if(ptr != NULL){

        *ptr = '\0';

    }

    rc = ssh_pki_import_pubkey_base64(pkey_ptr, SSH_KEYTYPE_ED25519, &pubkey);

    assert_true(rc == SSH_OK);

    assert_non_null(pubkey);

    /* alter signature and expect false result */

    for (i=0; i < ED25519_SIG_LEN; ++i){

        ssh_string_fill(blob, ref_signature, ED25519_SIG_LEN);

        ((uint8_t *)ssh_string_data(blob))[i] ^= 0xff;

        sig = pki_signature_from_blob(pubkey, blob, SSH_KEYTYPE_ED25519, SSH_DIGEST_AUTO);

        assert_non_null(sig);

        rc = ssh_pki_signature_verify(session, sig, pubkey, HASH, sizeof(HASH));

        assert_true(rc == SSH_ERROR);

        ssh_signature_free(sig);

    }

    SSH_KEY_FREE(pubkey);

    SSH_STRING_FREE(blob);

    free(pkey_ptr);

    ssh_free(session);

}

static void torture_pki_ed25519_import_privkey_base64_passphrase(void **state)

{

    int rc;

    ssh_key key = NULL;

    const char *passphrase = torture_get_testkey_passphrase();

    const char *testkey = NULL;

    (void) state; /* unused */