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authorMichael Biebl <biebl@debian.org>2022-05-04 15:35:24 +0200
committerMichael Biebl <biebl@debian.org>2022-05-04 15:35:24 +0200
commit9959fdb2e8ddd06f2161798ca0a39c77d67c652d (patch)
tree2ce24a336d2b1c5fd5dec3090db312eded6c78ba /src/libnm-core-impl/nm-crypto.c
parent8c623dddbdebe354cb94bfc559a5371a14865317 (diff)
New upstream version 1.37.92 upstream/1.37.92
Diffstat (limited to 'src/libnm-core-impl/nm-crypto.c')
-rw-r--r--src/libnm-core-impl/nm-crypto.c1044
1 files changed, 0 insertions, 1044 deletions
diff --git a/src/libnm-core-impl/nm-crypto.c b/src/libnm-core-impl/nm-crypto.c
deleted file mode 100644
index 78f793bd..00000000
--- a/src/libnm-core-impl/nm-crypto.c
+++ /dev/null
@@ -1,1044 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-/*
- * Dan Williams <dcbw@redhat.com>
- * Copyright (C) 2007 - 2018 Red Hat, Inc.
- */
-
-#include "libnm-core-impl/nm-default-libnm-core.h"
-
-#include "nm-crypto.h"
-
-#include <strings.h>
-#include <unistd.h>
-#include <stdlib.h>
-
-#include "libnm-glib-aux/nm-secret-utils.h"
-#include "libnm-glib-aux/nm-io-utils.h"
-
-#include "nm-crypto-impl.h"
-#include "nm-utils.h"
-#include "nm-errors.h"
-
-#define PEM_RSA_KEY_BEGIN "-----BEGIN RSA PRIVATE KEY-----"
-#define PEM_RSA_KEY_END   "-----END RSA PRIVATE KEY-----"
-
-#define PEM_DSA_KEY_BEGIN "-----BEGIN DSA PRIVATE KEY-----"
-#define PEM_DSA_KEY_END   "-----END DSA PRIVATE KEY-----"
-
-#define PEM_CERT_BEGIN "-----BEGIN CERTIFICATE-----"
-#define PEM_CERT_END   "-----END CERTIFICATE-----"
-
-#define PEM_PKCS8_ENC_KEY_BEGIN "-----BEGIN ENCRYPTED PRIVATE KEY-----"
-#define PEM_PKCS8_ENC_KEY_END   "-----END ENCRYPTED PRIVATE KEY-----"
-
-#define PEM_PKCS8_DEC_KEY_BEGIN "-----BEGIN PRIVATE KEY-----"
-#define PEM_PKCS8_DEC_KEY_END   "-----END PRIVATE KEY-----"
-
-#define PEM_TPM2_WRAPPED_KEY_BEGIN "-----BEGIN TSS2 PRIVATE KEY-----"
-#define PEM_TPM2_WRAPPED_KEY_END   "-----END TSS2 PRIVATE KEY-----"
-
-#define PEM_TPM2_OLD_WRAPPED_KEY_BEGIN "-----BEGIN TSS2 KEY BLOB-----"
-#define PEM_TPM2_OLD_WRAPPED_KEY_END   "-----END TSS2 KEY BLOB-----"
-
-/*****************************************************************************/
-
-static const NMCryptoCipherInfo cipher_infos[] = {
-#define _CI(_cipher, _name, _digest_len, _real_iv_len) \
-    [(_cipher) -1] = {.cipher      = _cipher,          \
-                      .name        = ""_name           \
-                                     "",               \
-                      .digest_len  = _digest_len,      \
-                      .real_iv_len = _real_iv_len}
-    _CI(NM_CRYPTO_CIPHER_DES_EDE3_CBC, "DES-EDE3-CBC", 24, 8),
-    _CI(NM_CRYPTO_CIPHER_DES_CBC, "DES-CBC", 8, 8),
-    _CI(NM_CRYPTO_CIPHER_AES_128_CBC, "AES-128-CBC", 16, 16),
-    _CI(NM_CRYPTO_CIPHER_AES_192_CBC, "AES-192-CBC", 24, 16),
-    _CI(NM_CRYPTO_CIPHER_AES_256_CBC, "AES-256-CBC", 32, 16),
-};
-
-const NMCryptoCipherInfo *
-nm_crypto_cipher_get_info(NMCryptoCipherType cipher)
-{
-    g_return_val_if_fail(cipher > NM_CRYPTO_CIPHER_UNKNOWN
-                             && (gsize) cipher < G_N_ELEMENTS(cipher_infos) + 1,
-                         NULL);
-
-#if NM_MORE_ASSERTS > 10
-    {
-        int i, j;
-
-        for (i = 0; i < (int) G_N_ELEMENTS(cipher_infos); i++) {
-            const NMCryptoCipherInfo *info = &cipher_infos[i];
-
-            nm_assert(info->cipher == (NMCryptoCipherType) (i + 1));
-            nm_assert(info->name && info->name[0]);
-            for (j = 0; j < i; j++)
-                nm_assert(g_ascii_strcasecmp(info->name, cipher_infos[j].name) != 0);
-        }
-    }
-#endif
-
-    return &cipher_infos[cipher - 1];
-}
-
-const NMCryptoCipherInfo *
-nm_crypto_cipher_get_info_by_name(const char *cipher_name, gssize p_len)
-{
-    int i;
-
-    nm_assert(nm_crypto_cipher_get_info(NM_CRYPTO_CIPHER_DES_CBC)->cipher
-              == NM_CRYPTO_CIPHER_DES_CBC);
-
-    if (p_len < 0) {
-        if (!cipher_name)
-            return FALSE;
-        p_len = strlen(cipher_name);
-    }
-
-    for (i = 0; i < (int) G_N_ELEMENTS(cipher_infos); i++) {
-        const NMCryptoCipherInfo *info = &cipher_infos[i];
-
-        if ((gsize) p_len == strlen(info->name)
-            && g_ascii_strncasecmp(info->name, cipher_name, p_len) == 0)
-            return info;
-    }
-    return NULL;
-}
-
-/*****************************************************************************/
-
-static gboolean
-find_tag(const char *tag, const guint8 *data, gsize data_len, gsize start_at, gsize *out_pos)
-{
-    const guint8 *p;
-    gsize         taglen;
-
-    nm_assert(out_pos);
-    nm_assert(start_at <= data_len);
-
-    taglen = strlen(tag);
-
-    p = memmem(&data[start_at], data_len - start_at, tag, taglen);
-    if (!p)
-        return FALSE;
-
-    *out_pos = p - data;
-
-    nm_assert(memcmp(&data[*out_pos], tag, taglen) == 0);
-
-    return TRUE;
-}
-
-#define DEK_INFO_TAG  "DEK-Info: "
-#define PROC_TYPE_TAG "Proc-Type: "
-
-static char *
-_extract_line(const guint8 **p, const guint8 *p_end)
-{
-    const guint8 *x, *x0;
-
-    nm_assert(p);
-    nm_assert(p_end);
-    nm_assert(*p);
-    nm_assert(*p < p_end);
-
-    x = x0 = *p;
-    while (TRUE) {
-        if (x == p_end) {
-            *p = p_end;
-            break;
-        }
-        if (*x == '\0') {
-            /* the data contains embedded NUL. This is the end. */
-            *p = p_end;
-            break;
-        }
-        if (*x == '\n') {
-            *p = x + 1;
-            break;
-        }
-        x++;
-    }
-
-    if (x == x0)
-        return NULL;
-    return g_strndup((char *) x0, x - x0);
-}
-
-static gboolean
-parse_old_openssl_key_file(const guint8       *data,
-                           gsize               data_len,
-                           NMSecretPtr        *out_parsed,
-                           NMCryptoKeyType    *out_key_type,
-                           NMCryptoCipherType *out_cipher,
-                           char              **out_iv,
-                           GError            **error)
-{
-    gsize                                start = 0, end = 0;
-    nm_auto_free_secret char            *str = NULL;
-    char                                *str_p;
-    gsize                                str_len;
-    int                                  enc_tags = 0;
-    NMCryptoKeyType                      key_type;
-    nm_auto_clear_secret_ptr NMSecretPtr parsed = {0};
-    nm_auto_free_secret char            *iv     = NULL;
-    NMCryptoCipherType                   cipher = NM_CRYPTO_CIPHER_UNKNOWN;
-    const char                          *start_tag;
-    const char                          *end_tag;
-    const guint8                        *data_start, *data_end;
-
-    nm_assert(!out_parsed || (out_parsed->len == 0 && !out_parsed->bin));
-    nm_assert(!out_iv || !*out_iv);
-
-    NM_SET_OUT(out_key_type, NM_CRYPTO_KEY_TYPE_UNKNOWN);
-    NM_SET_OUT(out_cipher, NM_CRYPTO_CIPHER_UNKNOWN);
-
-    if (find_tag(PEM_RSA_KEY_BEGIN, data, data_len, 0, &start)) {
-        key_type  = NM_CRYPTO_KEY_TYPE_RSA;
-        start_tag = PEM_RSA_KEY_BEGIN;
-        end_tag   = PEM_RSA_KEY_END;
-    } else if (find_tag(PEM_DSA_KEY_BEGIN, data, data_len, 0, &start)) {
-        key_type  = NM_CRYPTO_KEY_TYPE_DSA;
-        start_tag = PEM_DSA_KEY_BEGIN;
-        end_tag   = PEM_DSA_KEY_END;
-    } else {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("PEM key file had no start tag"));
-        return FALSE;
-    }
-
-    start += strlen(start_tag);
-    if (!find_tag(end_tag, data, data_len, start, &end)) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("PEM key file had no end tag '%s'."),
-                    end_tag);
-        return FALSE;
-    }
-
-    str_len = end - start + 1;
-    str     = g_new(char, str_len);
-    str[0]  = '\0';
-    str_p   = str;
-
-    data_start = &data[start];
-    data_end   = &data[end];
-
-    while (data_start < data_end) {
-        nm_auto_free_secret char *line = NULL;
-        char                     *p;
-
-        line = _extract_line(&data_start, data_end);
-        if (!line)
-            continue;
-
-        p = nm_secret_strchomp(nm_str_skip_leading_spaces(line));
-
-        if (!strncmp(p, PROC_TYPE_TAG, strlen(PROC_TYPE_TAG))) {
-            if (enc_tags++ != 0 || str_p != str) {
-                g_set_error(error,
-                            NM_CRYPTO_ERROR,
-                            NM_CRYPTO_ERROR_INVALID_DATA,
-                            _("Malformed PEM file: Proc-Type was not first tag."));
-                return FALSE;
-            }
-
-            p += strlen(PROC_TYPE_TAG);
-            if (strcmp(p, "4,ENCRYPTED")) {
-                g_set_error(error,
-                            NM_CRYPTO_ERROR,
-                            NM_CRYPTO_ERROR_INVALID_DATA,
-                            _("Malformed PEM file: unknown Proc-Type tag '%s'."),
-                            p);
-                return FALSE;
-            }
-        } else if (!strncmp(p, DEK_INFO_TAG, strlen(DEK_INFO_TAG))) {
-            const NMCryptoCipherInfo *cipher_info;
-            char                     *comma;
-            gsize                     p_len;
-
-            if (enc_tags++ != 1 || str_p != str) {
-                g_set_error(error,
-                            NM_CRYPTO_ERROR,
-                            NM_CRYPTO_ERROR_INVALID_DATA,
-                            _("Malformed PEM file: DEK-Info was not the second tag."));
-                return FALSE;
-            }
-
-            p += strlen(DEK_INFO_TAG);
-
-            /* Grab the IV first */
-            comma = strchr(p, ',');
-            if (!comma || (*(comma + 1) == '\0')) {
-                g_set_error(error,
-                            NM_CRYPTO_ERROR,
-                            NM_CRYPTO_ERROR_INVALID_DATA,
-                            _("Malformed PEM file: no IV found in DEK-Info tag."));
-                return FALSE;
-            }
-            p_len = comma - p;
-            comma++;
-            if (!g_ascii_isxdigit(*comma)) {
-                g_set_error(error,
-                            NM_CRYPTO_ERROR,
-                            NM_CRYPTO_ERROR_INVALID_DATA,
-                            _("Malformed PEM file: invalid format of IV in DEK-Info tag."));
-                return FALSE;
-            }
-            nm_free_secret(iv);
-            iv = g_strdup(comma);
-
-            /* Get the private key cipher */
-            cipher_info = nm_crypto_cipher_get_info_by_name(p, p_len);
-            if (!cipher_info) {
-                g_set_error(error,
-                            NM_CRYPTO_ERROR,
-                            NM_CRYPTO_ERROR_INVALID_DATA,
-                            _("Malformed PEM file: unknown private key cipher '%s'."),
-                            p);
-                return FALSE;
-            }
-            cipher = cipher_info->cipher;
-        } else {
-            if (enc_tags == 1) {
-                g_set_error(error,
-                            NM_CRYPTO_ERROR,
-                            NM_CRYPTO_ERROR_INVALID_DATA,
-                            "Malformed PEM file: both Proc-Type and DEK-Info tags are required.");
-                return FALSE;
-            }
-            nm_strbuf_append_str(&str_p, &str_len, p);
-            nm_assert(str_len > 0);
-        }
-    }
-
-    parsed.bin = (guint8 *) g_base64_decode(str, &parsed.len);
-    if (!parsed.bin || parsed.len == 0) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("Could not decode private key."));
-        nm_secret_ptr_clear(&parsed);
-        return FALSE;
-    }
-
-    NM_SET_OUT(out_key_type, key_type);
-    NM_SET_OUT(out_iv, g_steal_pointer(&iv));
-    NM_SET_OUT(out_cipher, cipher);
-    nm_secret_ptr_move(out_parsed, &parsed);
-    return TRUE;
-}
-
-static gboolean
-parse_pkcs8_key_file(const guint8 *data,
-                     gsize         data_len,
-                     NMSecretPtr  *parsed,
-                     gboolean     *out_encrypted,
-                     GError      **error)
-{
-    gsize                     start = 0, end = 0;
-    const char               *start_tag = NULL, *end_tag = NULL;
-    gboolean                  encrypted  = FALSE;
-    nm_auto_free_secret char *der_base64 = NULL;
-
-    nm_assert(parsed);
-    nm_assert(!parsed->bin);
-    nm_assert(parsed->len == 0);
-    nm_assert(out_encrypted);
-
-    /* Try encrypted first, decrypted next */
-    if (find_tag(PEM_PKCS8_ENC_KEY_BEGIN, data, data_len, 0, &start)) {
-        start_tag = PEM_PKCS8_ENC_KEY_BEGIN;
-        end_tag   = PEM_PKCS8_ENC_KEY_END;
-        encrypted = TRUE;
-    } else if (find_tag(PEM_PKCS8_DEC_KEY_BEGIN, data, data_len, 0, &start)) {
-        start_tag = PEM_PKCS8_DEC_KEY_BEGIN;
-        end_tag   = PEM_PKCS8_DEC_KEY_END;
-        encrypted = FALSE;
-    } else {
-        g_set_error_literal(error,
-                            NM_CRYPTO_ERROR,
-                            NM_CRYPTO_ERROR_INVALID_DATA,
-                            _("Failed to find expected PKCS#8 start tag."));
-        return FALSE;
-    }
-
-    start += strlen(start_tag);
-    if (!find_tag(end_tag, data, data_len, start, &end)) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("Failed to find expected PKCS#8 end tag '%s'."),
-                    end_tag);
-        return FALSE;
-    }
-
-    /* g_base64_decode() wants a NULL-terminated string */
-    der_base64 = g_strndup((char *) &data[start], end - start);
-
-    parsed->bin = (guint8 *) g_base64_decode(der_base64, &parsed->len);
-    if (!parsed->bin || parsed->len == 0) {
-        g_set_error_literal(error,
-                            NM_CRYPTO_ERROR,
-                            NM_CRYPTO_ERROR_INVALID_DATA,
-                            _("Failed to decode PKCS#8 private key."));
-        nm_secret_ptr_clear(parsed);
-        return FALSE;
-    }
-
-    *out_encrypted = encrypted;
-    return TRUE;
-}
-
-static gboolean
-parse_tpm2_wrapped_key_file(const guint8 *data,
-                            gsize         data_len,
-                            gboolean     *out_encrypted,
-                            GError      **error)
-{
-    gsize       start = 0, end = 0;
-    const char *start_tag = NULL, *end_tag = NULL;
-
-    nm_assert(out_encrypted);
-
-    if (find_tag(PEM_TPM2_WRAPPED_KEY_BEGIN, data, data_len, 0, &start)) {
-        start_tag = PEM_TPM2_WRAPPED_KEY_BEGIN;
-        end_tag   = PEM_TPM2_WRAPPED_KEY_END;
-    } else if (find_tag(PEM_TPM2_OLD_WRAPPED_KEY_BEGIN, data, data_len, 0, &start)) {
-        start_tag = PEM_TPM2_OLD_WRAPPED_KEY_BEGIN;
-        end_tag   = PEM_TPM2_OLD_WRAPPED_KEY_END;
-    } else {
-        g_set_error_literal(error,
-                            NM_CRYPTO_ERROR,
-                            NM_CRYPTO_ERROR_INVALID_DATA,
-                            _("Failed to find expected TSS start tag."));
-        return FALSE;
-    }
-
-    start += strlen(start_tag);
-    if (!find_tag(end_tag, data, data_len, start, &end)) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("Failed to find expected TSS end tag '%s'."),
-                    end_tag);
-        return FALSE;
-    }
-
-    *out_encrypted = FALSE;
-    return TRUE;
-}
-
-static gboolean
-file_read_contents(const char *filename, NMSecretPtr *out_contents, GError **error)
-{
-    nm_assert(out_contents);
-    nm_assert(out_contents->len == 0);
-    nm_assert(!out_contents->str);
-
-    return nm_utils_file_get_contents(-1,
-                                      filename,
-                                      100 * 1024 * 1024,
-                                      NM_UTILS_FILE_GET_CONTENTS_FLAG_SECRET,
-                                      &out_contents->str,
-                                      &out_contents->len,
-                                      NULL,
-                                      error);
-}
-
-GBytes *
-nm_crypto_read_file(const char *filename, GError **error)
-{
-    nm_auto_clear_secret_ptr NMSecretPtr contents = {0};
-
-    g_return_val_if_fail(filename, NULL);
-
-    if (!file_read_contents(filename, &contents, error))
-        return NULL;
-    return nm_secret_copy_to_gbytes(contents.bin, contents.len);
-}
-
-/*
- * Convert a hex string into bytes.
- */
-static guint8 *
-_nmtst_convert_iv(const char *src, gsize *out_len, GError **error)
-{
-    gsize           i, num;
-    gs_free guint8 *c = NULL;
-    int             c0, c1;
-
-    nm_assert(src);
-
-    num = strlen(src);
-    if (num == 0 || (num % 2) != 0) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("IV must be an even number of bytes in length."));
-        return NULL;
-    }
-
-    num /= 2;
-    c = g_malloc(num + 1);
-
-    /* defensively add trailing NUL. This function returns binary data,
-     * do not assume it's NUL terminated. */
-    c[num] = '\0';
-
-    for (i = 0; i < num; i++) {
-        if (((c0 = nm_utils_hexchar_to_int(*(src++))) < 0)
-            || ((c1 = nm_utils_hexchar_to_int(*(src++))) < 0)) {
-            g_set_error(error,
-                        NM_CRYPTO_ERROR,
-                        NM_CRYPTO_ERROR_INVALID_DATA,
-                        _("IV contains non-hexadecimal digits."));
-            nm_explicit_bzero(c, i);
-            return FALSE;
-        }
-
-        c[i] = (c0 << 4) + c1;
-    }
-    *out_len = num;
-    return g_steal_pointer(&c);
-}
-
-guint8 *
-nmtst_crypto_make_des_aes_key(NMCryptoCipherType cipher,
-                              const guint8      *salt,
-                              gsize              salt_len,
-                              const char        *password,
-                              gsize             *out_len,
-                              GError           **error)
-{
-    guint8                   *key;
-    const NMCryptoCipherInfo *cipher_info;
-
-    g_return_val_if_fail(salt != NULL, NULL);
-    g_return_val_if_fail(salt_len >= 8, NULL);
-    g_return_val_if_fail(password != NULL, NULL);
-    g_return_val_if_fail(out_len != NULL, NULL);
-
-    *out_len = 0;
-
-    cipher_info = nm_crypto_cipher_get_info(cipher);
-
-    g_return_val_if_fail(cipher_info, NULL);
-
-    if (password[0] == '\0')
-        return NULL;
-
-    key = g_malloc(cipher_info->digest_len);
-
-    nm_crypto_md5_hash(salt,
-                       8,
-                       (guint8 *) password,
-                       strlen(password),
-                       key,
-                       cipher_info->digest_len);
-
-    *out_len = cipher_info->digest_len;
-    return key;
-}
-
-static gboolean
-_nmtst_decrypt_key(NMCryptoCipherType cipher,
-                   const guint8      *data,
-                   gsize              data_len,
-                   const char        *iv,
-                   const char        *password,
-                   NMSecretPtr       *parsed,
-                   GError           **error)
-{
-    nm_auto_clear_secret_ptr NMSecretPtr bin_iv = {0};
-    nm_auto_clear_secret_ptr NMSecretPtr key    = {0};
-
-    nm_assert(password);
-    nm_assert(cipher != NM_CRYPTO_CIPHER_UNKNOWN);
-    nm_assert(iv);
-    nm_assert(parsed);
-    nm_assert(!parsed->bin);
-    nm_assert(parsed->len == 0);
-
-    bin_iv.bin = _nmtst_convert_iv(iv, &bin_iv.len, error);
-    if (!bin_iv.bin)
-        return FALSE;
-
-    if (bin_iv.len < 8) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("IV must contain at least 8 characters"));
-        return FALSE;
-    }
-
-    /* Convert the password and IV into a DES or AES key */
-    key.bin =
-        nmtst_crypto_make_des_aes_key(cipher, bin_iv.bin, bin_iv.len, password, &key.len, error);
-    if (!key.bin || !key.len)
-        return FALSE;
-
-    parsed->bin = _nmtst_crypto_decrypt(cipher,
-                                        data,
-                                        data_len,
-                                        bin_iv.bin,
-                                        bin_iv.len,
-                                        key.bin,
-                                        key.len,
-                                        &parsed->len,
-                                        error);
-    if (!parsed->bin || parsed->len == 0) {
-        nm_secret_ptr_clear(parsed);
-        return FALSE;
-    }
-
-    return TRUE;
-}
-
-GBytes *
-nmtst_crypto_decrypt_openssl_private_key_data(const guint8    *data,
-                                              gsize            data_len,
-                                              const char      *password,
-                                              NMCryptoKeyType *out_key_type,
-                                              GError         **error)
-{
-    NMCryptoKeyType                      key_type = NM_CRYPTO_KEY_TYPE_UNKNOWN;
-    nm_auto_clear_secret_ptr NMSecretPtr parsed   = {0};
-    nm_auto_free_secret char            *iv       = NULL;
-    NMCryptoCipherType                   cipher   = NM_CRYPTO_CIPHER_UNKNOWN;
-
-    g_return_val_if_fail(data != NULL, NULL);
-
-    NM_SET_OUT(out_key_type, NM_CRYPTO_KEY_TYPE_UNKNOWN);
-
-    if (!_nm_crypto_init(error))
-        return NULL;
-
-    if (!parse_old_openssl_key_file(data, data_len, &parsed, &key_type, &cipher, &iv, NULL)) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("Unable to determine private key type."));
-        return NULL;
-    }
-
-    NM_SET_OUT(out_key_type, key_type);
-
-    if (password) {
-        nm_auto_clear_secret_ptr NMSecretPtr parsed2 = {0};
-
-        if (cipher == NM_CRYPTO_CIPHER_UNKNOWN || !iv) {
-            g_set_error(error,
-                        NM_CRYPTO_ERROR,
-                        NM_CRYPTO_ERROR_INVALID_PASSWORD,
-                        _("Password provided, but key was not encrypted."));
-            return NULL;
-        }
-
-        if (!_nmtst_decrypt_key(cipher, parsed.bin, parsed.len, iv, password, &parsed2, error))
-            return NULL;
-
-        return nm_secret_copy_to_gbytes(parsed2.bin, parsed2.len);
-    }
-
-    if (cipher != NM_CRYPTO_CIPHER_UNKNOWN || iv)
-        return NULL;
-
-    return nm_secret_copy_to_gbytes(parsed.bin, parsed.len);
-}
-
-GBytes *
-nmtst_crypto_decrypt_openssl_private_key(const char      *file,
-                                         const char      *password,
-                                         NMCryptoKeyType *out_key_type,
-                                         GError         **error)
-{
-    nm_auto_clear_secret_ptr NMSecretPtr contents = {0};
-
-    if (!_nm_crypto_init(error))
-        return NULL;
-
-    if (!file_read_contents(file, &contents, error))
-        return NULL;
-
-    return nmtst_crypto_decrypt_openssl_private_key_data(contents.bin,
-                                                         contents.len,
-                                                         password,
-                                                         out_key_type,
-                                                         error);
-}
-
-static gboolean
-extract_pem_cert_data(const guint8 *contents,
-                      gsize         contents_len,
-                      NMSecretPtr  *out_cert,
-                      GError      **error)
-{
-    gsize                     start      = 0;
-    gsize                     end        = 0;
-    nm_auto_free_secret char *der_base64 = NULL;
-
-    nm_assert(contents);
-    nm_assert(out_cert);
-    nm_assert(out_cert->len == 0);
-    nm_assert(!out_cert->ptr);
-
-    if (!find_tag(PEM_CERT_BEGIN, contents, contents_len, 0, &start)) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("PEM certificate had no start tag '%s'."),
-                    PEM_CERT_BEGIN);
-        return FALSE;
-    }
-
-    start += strlen(PEM_CERT_BEGIN);
-    if (!find_tag(PEM_CERT_END, contents, contents_len, start, &end)) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("PEM certificate had no end tag '%s'."),
-                    PEM_CERT_END);
-        return FALSE;
-    }
-
-    /* g_base64_decode() wants a NULL-terminated string */
-    der_base64 = g_strndup((const char *) &contents[start], end - start);
-
-    out_cert->bin = (guint8 *) g_base64_decode(der_base64, &out_cert->len);
-    if (!out_cert->bin || !out_cert->len) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("Failed to decode certificate."));
-        nm_secret_ptr_clear(out_cert);
-        return FALSE;
-    }
-
-    return TRUE;
-}
-
-gboolean
-nm_crypto_load_and_verify_certificate(const char         *file,
-                                      NMCryptoFileFormat *out_file_format,
-                                      GBytes            **out_certificate,
-                                      GError            **error)
-{
-    nm_auto_clear_secret_ptr NMSecretPtr contents = {0};
-
-    g_return_val_if_fail(file, FALSE);
-    nm_assert(!error || !*error);
-
-    if (!_nm_crypto_init(error))
-        goto out;
-
-    if (!file_read_contents(file, &contents, error))
-        goto out;
-
-    if (contents.len == 0) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("Certificate file is empty"));
-        goto out;
-    }
-
-    /* Check for PKCS#12 */
-    if (nm_crypto_is_pkcs12_data(contents.bin, contents.len, NULL)) {
-        NM_SET_OUT(out_file_format, NM_CRYPTO_FILE_FORMAT_PKCS12);
-        NM_SET_OUT(out_certificate, nm_secret_copy_to_gbytes(contents.bin, contents.len));
-        return TRUE;
-    }
-
-    /* Check for plain DER format */
-    if (contents.len > 2 && contents.bin[0] == 0x30 && contents.bin[1] == 0x82) {
-        if (_nm_crypto_verify_x509(contents.bin, contents.len, NULL)) {
-            NM_SET_OUT(out_file_format, NM_CRYPTO_FILE_FORMAT_X509);
-            NM_SET_OUT(out_certificate, nm_secret_copy_to_gbytes(contents.bin, contents.len));
-            return TRUE;
-        }
-    } else {
-        nm_auto_clear_secret_ptr NMSecretPtr pem_cert = {0};
-
-        if (extract_pem_cert_data(contents.bin, contents.len, &pem_cert, NULL)) {
-            if (_nm_crypto_verify_x509(pem_cert.bin, pem_cert.len, NULL)) {
-                NM_SET_OUT(out_file_format, NM_CRYPTO_FILE_FORMAT_X509);
-                NM_SET_OUT(out_certificate, nm_secret_copy_to_gbytes(contents.bin, contents.len));
-                return TRUE;
-            }
-        }
-    }
-
-    g_set_error(error,
-                NM_CRYPTO_ERROR,
-                NM_CRYPTO_ERROR_INVALID_DATA,
-                _("Failed to recognize certificate"));
-
-out:
-    NM_SET_OUT(out_file_format, NM_CRYPTO_FILE_FORMAT_UNKNOWN);
-    NM_SET_OUT(out_certificate, NULL);
-    return FALSE;
-}
-
-gboolean
-nm_crypto_is_pkcs12_data(const guint8 *data, gsize data_len, GError **error)
-{
-    GError  *local = NULL;
-    gboolean success;
-
-    if (!data_len) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("Certificate file is empty"));
-        return FALSE;
-    }
-
-    g_return_val_if_fail(data != NULL, FALSE);
-
-    if (!_nm_crypto_init(error))
-        return FALSE;
-
-    success = _nm_crypto_verify_pkcs12(data, data_len, NULL, &local);
-    if (success == FALSE) {
-        /* If the error was just a decryption error, then it's pkcs#12 */
-        if (local) {
-            if (g_error_matches(local, NM_CRYPTO_ERROR, NM_CRYPTO_ERROR_DECRYPTION_FAILED)) {
-                success = TRUE;
-                g_error_free(local);
-            } else
-                g_propagate_error(error, local);
-        }
-    }
-    return success;
-}
-
-gboolean
-nm_crypto_is_pkcs12_file(const char *file, GError **error)
-{
-    nm_auto_clear_secret_ptr NMSecretPtr contents = {0};
-
-    g_return_val_if_fail(file != NULL, FALSE);
-
-    if (!_nm_crypto_init(error))
-        return FALSE;
-
-    if (!file_read_contents(file, &contents, error))
-        return FALSE;
-
-    return nm_crypto_is_pkcs12_data(contents.bin, contents.len, error);
-}
-
-/* Verifies that a private key can be read, and if a password is given, that
- * the private key can be decrypted with that password.
- */
-NMCryptoFileFormat
-nm_crypto_verify_private_key_data(const guint8 *data,
-                                  gsize         data_len,
-                                  const char   *password,
-                                  gboolean     *out_is_encrypted,
-                                  GError      **error)
-{
-    NMCryptoFileFormat format       = NM_CRYPTO_FILE_FORMAT_UNKNOWN;
-    gboolean           is_encrypted = FALSE;
-
-    g_return_val_if_fail(data != NULL, NM_CRYPTO_FILE_FORMAT_UNKNOWN);
-    g_return_val_if_fail(out_is_encrypted == NULL || *out_is_encrypted == FALSE,
-                         NM_CRYPTO_FILE_FORMAT_UNKNOWN);
-
-    if (!_nm_crypto_init(error))
-        return NM_CRYPTO_FILE_FORMAT_UNKNOWN;
-
-    /* Check for PKCS#12 first */
-    if (nm_crypto_is_pkcs12_data(data, data_len, NULL)) {
-        is_encrypted = TRUE;
-        if (!password || _nm_crypto_verify_pkcs12(data, data_len, password, error))
-            format = NM_CRYPTO_FILE_FORMAT_PKCS12;
-    } else {
-        nm_auto_clear_secret_ptr NMSecretPtr parsed = {0};
-
-        /* Maybe it's PKCS#8 */
-        if (parse_pkcs8_key_file(data, data_len, &parsed, &is_encrypted, NULL)) {
-            if (!password
-                || _nm_crypto_verify_pkcs8(parsed.bin, parsed.len, is_encrypted, password, error))
-                format = NM_CRYPTO_FILE_FORMAT_RAW_KEY;
-        } else if (parse_tpm2_wrapped_key_file(data, data_len, &is_encrypted, NULL)) {
-            format = NM_CRYPTO_FILE_FORMAT_RAW_KEY;
-        } else {
-            NMCryptoCipherType        cipher;
-            nm_auto_free_secret char *iv = NULL;
-
-            /* Or it's old-style OpenSSL */
-            if (parse_old_openssl_key_file(data, data_len, NULL, NULL, &cipher, &iv, NULL)) {
-                format       = NM_CRYPTO_FILE_FORMAT_RAW_KEY;
-                is_encrypted = (cipher != NM_CRYPTO_CIPHER_UNKNOWN && iv);
-            }
-        }
-    }
-
-    if (format == NM_CRYPTO_FILE_FORMAT_UNKNOWN && error && !*error) {
-        g_set_error(error,
-                    NM_CRYPTO_ERROR,
-                    NM_CRYPTO_ERROR_INVALID_DATA,
-                    _("not a valid private key"));
-    }
-
-    if (out_is_encrypted)
-        *out_is_encrypted = is_encrypted;
-    return format;
-}
-
-NMCryptoFileFormat
-nm_crypto_verify_private_key(const char *filename,
-                             const char *password,
-                             gboolean   *out_is_encrypted,
-                             GError    **error)
-{
-    nm_auto_clear_secret_ptr NMSecretPtr contents = {0};
-
-    g_return_val_if_fail(filename != NULL, NM_CRYPTO_FILE_FORMAT_UNKNOWN);
-
-    if (!_nm_crypto_init(error))
-        return NM_CRYPTO_FILE_FORMAT_UNKNOWN;
-
-    if (!file_read_contents(filename, &contents, error))
-        return NM_CRYPTO_FILE_FORMAT_UNKNOWN;
-
-    return nm_crypto_verify_private_key_data(contents.bin,
-                                             contents.len,
-                                             password,
-                                             out_is_encrypted,
-                                             error);
-}
-
-gboolean
-nm_crypto_randomize(void *buffer, gsize buffer_len, GError **error)
-{
-    return _nm_crypto_randomize(buffer, buffer_len, error);
-}
-
-/**
- * nmtst_crypto_rsa_key_encrypt:
- * @data: (array length=len): RSA private key data to be encrypted
- * @len: length of @data
- * @in_password: (allow-none): existing password to use, if any
- * @out_password: (out) (allow-none): if @in_password was %NULL, a random
- *  password will be generated and returned in this argument
- * @error: detailed error information on return, if an error occurred
- *
- * Encrypts the given RSA private key data with the given password (or generates
- * a password if no password was given) and converts the data to PEM format
- * suitable for writing to a file. It uses Triple DES cipher for the encryption.
- *
- * Returns: (transfer full): on success, PEM-formatted data suitable for writing
- * to a PEM-formatted certificate/private key file.
- **/
-GBytes *
-nmtst_crypto_rsa_key_encrypt(const guint8 *data,
-                             gsize         len,
-                             const char   *in_password,
-                             char        **out_password,
-                             GError      **error)
-{
-    guint8                               salt[8];
-    nm_auto_clear_secret_ptr NMSecretPtr key          = {0};
-    nm_auto_clear_secret_ptr NMSecretPtr enc          = {0};
-    gs_unref_ptrarray GPtrArray         *pem          = NULL;
-    nm_auto_free_secret char            *tmp_password = NULL;
-    nm_auto_free_secret char            *enc_base64   = NULL;
-    gsize                                enc_base64_len;
-    const char                          *p;
-    gsize                                ret_len, ret_idx;
-    guint                                i;
-    NMSecretBuf                         *ret;
-
-    g_return_val_if_fail(data, NULL);
-    g_return_val_if_fail(len > 0, NULL);
-    g_return_val_if_fail(!out_password || !*out_password, NULL);
-
-    /* Make the password if needed */
-    if (!in_password) {
-        nm_auto_clear_static_secret_ptr NMSecretPtr pw_buf = NM_SECRET_PTR_STATIC(32);
-
-        if (!nm_crypto_randomize(pw_buf.bin, pw_buf.len, error))
-            return NULL;
-        tmp_password = nm_utils_bin2hexstr(pw_buf.bin, pw_buf.len, -1);
-        in_password  = tmp_password;
-    }
-
-    if (!nm_crypto_randomize(salt, sizeof(salt), error))
-        return NULL;
-
-    key.bin = nmtst_crypto_make_des_aes_key(NM_CRYPTO_CIPHER_DES_EDE3_CBC,
-                                            salt,
-                                            sizeof(salt),
-                                            in_password,
-                                            &key.len,
-                                            NULL);
-    if (!key.bin)
-        g_return_val_if_reached(NULL);
-
-    enc.bin = _nmtst_crypto_encrypt(NM_CRYPTO_CIPHER_DES_EDE3_CBC,
-                                    data,
-                                    len,
-                                    salt,
-                                    sizeof(salt),
-                                    key.bin,
-                                    key.len,
-                                    &enc.len,
-                                    error);
-    if (!enc.bin)
-        return NULL;
-
-    /* What follows is not the most efficient way to construct the pem
-     * file line-by-line. At least, it makes sure, that the data will be cleared
-     * again and not left around in memory.
-     *
-     * If this would not be test code, we should improve the implementation
-     * to avoid some of the copying. */
-    pem = g_ptr_array_new_with_free_func((GDestroyNotify) nm_free_secret);
-
-    g_ptr_array_add(pem, g_strdup("-----BEGIN RSA PRIVATE KEY-----\n"));
-    g_ptr_array_add(pem, g_strdup("Proc-Type: 4,ENCRYPTED\n"));
-
-    /* Convert the salt to a hex string */
-    g_ptr_array_add(
-        pem,
-        g_strdup_printf("DEK-Info: %s,",
-                        nm_crypto_cipher_get_info(NM_CRYPTO_CIPHER_DES_EDE3_CBC)->name));
-    g_ptr_array_add(pem, nm_utils_bin2hexstr(salt, sizeof(salt), sizeof(salt) * 2));
-    g_ptr_array_add(pem, g_strdup("\n\n"));
-
-    /* Convert the encrypted key to a base64 string */
-    enc_base64     = g_base64_encode((const guchar *) enc.bin, enc.len);
-    enc_base64_len = strlen(enc_base64);
-    for (p = enc_base64; (p - enc_base64) < (ptrdiff_t) enc_base64_len; p += 64) {
-        g_ptr_array_add(pem, g_strndup(p, 64));
-        g_ptr_array_add(pem, g_strdup("\n"));
-    }
-
-    g_ptr_array_add(pem, g_strdup("-----END RSA PRIVATE KEY-----\n"));
-
-    ret_len = 0;
-    for (i = 0; i < pem->len; i++)
-        ret_len += strlen(pem->pdata[i]);
-
-    ret     = nm_secret_buf_new(ret_len + 1);
-    ret_idx = 0;
-    for (i = 0; i < pem->len; i++) {
-        const char *line   = pem->pdata[i];
-        gsize       line_l = strlen(line);
-
-        memcpy(&ret->bin[ret_idx], line, line_l);
-        ret_idx += line_l;
-        nm_assert(ret_idx <= ret_len);
-    }
-    nm_assert(ret_idx == ret_len);
-    ret->bin[ret_len] = '\0';
-
-    NM_SET_OUT(out_password, g_strdup(tmp_password));
-    return nm_secret_buf_to_gbytes_take(ret, ret_len);
-}