+++ /dev/null
-/* ppp-crypto.c - Generic API for access to crypto/digest functions.
- *
- * Copyright (c) 2022 Eivind Næss. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The name(s) of the authors of this software must not be used to
- * endorse or promote products derived from this software without
- * prior written permission.
- *
- * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
- * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
- * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
- * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "ppp-crypto.h"
-#include "ppp-crypto-priv.h"
-
-#ifdef PPP_WITH_OPENSSL
-#include <openssl/opensslv.h>
-#endif
-
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L
-#include <openssl/provider.h>
-struct crypto_ctx {
-
- OSSL_PROVIDER *legacy;
- OSSL_PROVIDER *provider;
-} g_crypto_ctx;
-#endif
-
-PPP_MD_CTX *PPP_MD_CTX_new()
-{
- return (PPP_MD_CTX*) calloc(1, sizeof(PPP_MD_CTX));
-}
-
-void PPP_MD_CTX_free(PPP_MD_CTX* ctx)
-{
- if (ctx) {
- if (ctx->md.clean_fn) {
- ctx->md.clean_fn(ctx);
- }
- free(ctx);
- }
-}
-
-int PPP_DigestInit(PPP_MD_CTX *ctx, const PPP_MD *type)
-{
- if (ctx) {
- ctx->md = *type;
- if (ctx->md.init_fn) {
- return ctx->md.init_fn(ctx);
- }
- }
- return 0;
-}
-
-int PPP_DigestUpdate(PPP_MD_CTX *ctx, const void *data, size_t length)
-{
- if (ctx && ctx->md.update_fn) {
- return ctx->md.update_fn(ctx, data, length);
- }
- return 0;
-}
-
-int PPP_DigestFinal(PPP_MD_CTX *ctx, unsigned char *out, unsigned int *outlen)
-{
- if (ctx && ctx->md.final_fn) {
- return ctx->md.final_fn(ctx, out, outlen);
- }
- return 0;
-}
-
-PPP_CIPHER_CTX *PPP_CIPHER_CTX_new(void)
-{
- return calloc(1, sizeof(PPP_CIPHER_CTX));
-}
-
-void PPP_CIPHER_CTX_free(PPP_CIPHER_CTX *ctx)
-{
- if (ctx) {
- if (ctx->cipher.clean_fn) {
- ctx->cipher.clean_fn(ctx);
- }
- memset(ctx->iv, 0, sizeof(ctx->iv));
- memset(ctx->key, 0, sizeof(ctx->key));
- free(ctx);
- }
-}
-
-int PPP_CipherInit(PPP_CIPHER_CTX *ctx, const PPP_CIPHER *cipher, const unsigned char *key, const unsigned char *iv, int encr)
-{
- if (ctx && cipher) {
- ctx->is_encr = encr;
- ctx->cipher = *cipher;
- if (ctx->cipher.init_fn) {
- ctx->cipher.init_fn(ctx, key, iv);
- }
- return 1;
- }
- return 0;
-}
-
-int PPP_CipherUpdate(PPP_CIPHER_CTX *ctx, unsigned char *out, int *outl, const unsigned char *in, int inl)
-{
- if (ctx && ctx->cipher.update_fn) {
- return ctx->cipher.update_fn(ctx, out, outl, in, inl);
- }
- return 0;
-}
-
-int PPP_CipherFinal(PPP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
-{
- if (ctx && ctx->cipher.final_fn) {
- return ctx->cipher.final_fn(ctx, out, outl);
- }
- return 0;
-}
-
-int PPP_crypto_init()
-{
- int retval = 0;
-
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L
- g_crypto_ctx.legacy = OSSL_PROVIDER_load(NULL, "legacy");
- if (g_crypto_ctx.legacy == NULL)
- {
- goto done;
- }
-
- g_crypto_ctx.provider = OSSL_PROVIDER_load(NULL, "default");
- if (g_crypto_ctx.provider == NULL)
- {
- goto done;
- }
-#endif
- retval = 1;
-
-done:
-
- return retval;
-}
-
-int PPP_crypto_deinit()
-{
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L
- if (g_crypto_ctx.legacy) {
- OSSL_PROVIDER_unload(g_crypto_ctx.legacy);
- g_crypto_ctx.legacy = NULL;
- }
-
- if (g_crypto_ctx.provider) {
- OSSL_PROVIDER_unload(g_crypto_ctx.provider);
- g_crypto_ctx.provider = NULL;
- }
-#endif
- return 1;
-}
-
-#ifdef UNIT_TEST
-#include <stdio.h>
-
-int test_md4()
-{
- PPP_MD_CTX* ctx = NULL;
- int success = 0;
-
- unsigned char data[84] = {
- 0x4f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63,
- 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x20, 0x73, 0x69,
- 0x64, 0x65, 0x2c, 0x20, 0x74, 0x68, 0x69, 0x73,
- 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
- 0x73, 0x65, 0x6e, 0x64, 0x20, 0x6b, 0x65, 0x79,
- 0x3b, 0x20, 0x6f, 0x6e, 0x20, 0x74, 0x68, 0x65,
- 0x20, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x20,
- 0x73, 0x69, 0x64, 0x65, 0x2c, 0x20, 0x69, 0x74,
- 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
- 0x72, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x20,
- 0x6b, 0x65, 0x79, 0x2e
- };
-
- unsigned int hash_len;
- unsigned char hash[MD4_DIGEST_LENGTH];
- unsigned char result[MD4_DIGEST_LENGTH] = {
- 0x58, 0xcb, 0x37, 0x91, 0x1d, 0x06, 0x7b, 0xdf,
- 0xfd, 0x48, 0x6d, 0x87, 0x4a, 0x35, 0x5b, 0xd4
- };
-
- ctx = PPP_MD_CTX_new();
- if (ctx) {
-
- if (PPP_DigestInit(ctx, PPP_md4())) {
-
- if (PPP_DigestUpdate(ctx, &data, sizeof(data))) {
-
- hash_len = sizeof(hash);
- if (PPP_DigestFinal(ctx, hash, &hash_len)) {
-
- if (memcmp(hash, result, MD4_DIGEST_LENGTH) == 0) {
- success = 1;
- }
- }
- }
- }
- PPP_MD_CTX_free(ctx);
- }
-
- return success;
-}
-
-int test_md5()
-{
- PPP_MD_CTX* ctx = NULL;
- int success = 0;
-
- unsigned char data[84] = {
- 0x4f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63,
- 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x20, 0x73, 0x69,
- 0x64, 0x65, 0x2c, 0x20, 0x74, 0x68, 0x69, 0x73,
- 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
- 0x73, 0x65, 0x6e, 0x64, 0x20, 0x6b, 0x65, 0x79,
- 0x3b, 0x20, 0x6f, 0x6e, 0x20, 0x74, 0x68, 0x65,
- 0x20, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x20,
- 0x73, 0x69, 0x64, 0x65, 0x2c, 0x20, 0x69, 0x74,
- 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
- 0x72, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x20,
- 0x6b, 0x65, 0x79, 0x2e
- };
-
- unsigned int hash_len;
- unsigned char hash[MD5_DIGEST_LENGTH];
- unsigned char result[MD5_DIGEST_LENGTH] = {
- 0x8b, 0xe3, 0x5e, 0x2c, 0x9f, 0x95, 0xbf, 0x4e,
- 0x16, 0xe4, 0x53, 0xbe, 0x52, 0xf4, 0xbc, 0x4e
- };
-
- ctx = PPP_MD_CTX_new();
- if (ctx) {
-
- if (PPP_DigestInit(ctx, PPP_md5())) {
-
- if (PPP_DigestUpdate(ctx, &data, sizeof(data))) {
-
- hash_len = sizeof(hash);
- if (PPP_DigestFinal(ctx, hash, &hash_len)) {
-
- if (memcmp(hash, result, MD5_DIGEST_LENGTH) == 0) {
- success = 1;
- }
- }
- }
- }
- PPP_MD_CTX_free(ctx);
- }
-
- return success;
-}
-
-int test_sha()
-{
- PPP_MD_CTX* ctx = NULL;
- int success = 0;
-
- unsigned char data[84] = {
- 0x4f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63,
- 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x20, 0x73, 0x69,
- 0x64, 0x65, 0x2c, 0x20, 0x74, 0x68, 0x69, 0x73,
- 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
- 0x73, 0x65, 0x6e, 0x64, 0x20, 0x6b, 0x65, 0x79,
- 0x3b, 0x20, 0x6f, 0x6e, 0x20, 0x74, 0x68, 0x65,
- 0x20, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x20,
- 0x73, 0x69, 0x64, 0x65, 0x2c, 0x20, 0x69, 0x74,
- 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
- 0x72, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x20,
- 0x6b, 0x65, 0x79, 0x2e
- };
-
- unsigned int hash_len;
- unsigned char hash[SHA_DIGEST_LENGTH];
- unsigned char result[SHA_DIGEST_LENGTH] = {
- 0xa8, 0x03, 0xae, 0x21, 0x30, 0xd8, 0x40, 0xbe,
- 0x27, 0xa3, 0x47, 0xc7, 0x7a, 0x90, 0xe6, 0xa3,
- 0x5b, 0xd5, 0x0e, 0x45
- };
-
- ctx = PPP_MD_CTX_new();
- if (ctx) {
-
- if (PPP_DigestInit(ctx, PPP_sha1())) {
-
- if (PPP_DigestUpdate(ctx, &data, sizeof(data))) {
-
- hash_len = sizeof(hash);
- if (PPP_DigestFinal(ctx, hash, &hash_len)) {
-
- if (memcmp(hash, result, SHA_DIGEST_LENGTH) == 0) {
- success = 1;
- }
- }
- }
- }
- PPP_MD_CTX_free(ctx);
- }
-
- return success;
-}
-
-int test_des_encrypt()
-{
- PPP_CIPHER_CTX* ctx = NULL;
- int success = 0;
-
- unsigned char key[8] = {
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
- };
-
- unsigned char plain[80] = {
- 0x4f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63,
- 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x20, 0x73, 0x69,
- 0x64, 0x65, 0x2c, 0x20, 0x74, 0x68, 0x69, 0x73,
- 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
- 0x73, 0x65, 0x6e, 0x64, 0x20, 0x6b, 0x65, 0x79,
- 0x3b, 0x20, 0x6f, 0x6e, 0x20, 0x74, 0x68, 0x65,
- 0x20, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x20,
- 0x73, 0x69, 0x64, 0x65, 0x2c, 0x20, 0x69, 0x74,
- 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
- 0x72, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x20
- };
- unsigned char expect[80] = {
- 0x45, 0xdb, 0x80, 0x45, 0x16, 0xd0, 0x6d, 0x60,
- 0x92, 0x23, 0x4b, 0xd3, 0x9d, 0x36, 0xb8, 0x1a,
- 0xa4, 0x1a, 0xf7, 0xb1, 0x60, 0xfb, 0x74, 0x16,
- 0xa6, 0xdc, 0xe1, 0x14, 0xb7, 0xed, 0x48, 0x5a,
- 0x2b, 0xed, 0x68, 0x9d, 0x19, 0xd6, 0xb1, 0xb8,
- 0x91, 0xff, 0xea, 0x62, 0xac, 0xe7, 0x49, 0xdd,
- 0xfa, 0x4d, 0xa4, 0x01, 0x3f, 0xea, 0xca, 0xb4,
- 0xb6, 0xdc, 0xd3, 0x04, 0x45, 0x07, 0x74, 0xed,
- 0xa6, 0xdc, 0xe1, 0x14, 0xb7, 0xed, 0x48, 0x5a,
- 0xbb, 0x9b, 0x13, 0x31, 0xf4, 0xa9, 0x32, 0x49
- };
-
- unsigned char cipher[80] = {};
- int cipher_len = 0;
- int offset = 0;
-
-
- ctx = PPP_CIPHER_CTX_new();
- if (ctx) {
-
- if (PPP_CipherInit(ctx, PPP_des_ecb(), key, NULL, 1)) {
-
- if (PPP_CipherUpdate(ctx, cipher, &cipher_len, plain, sizeof(plain))) {
-
- offset += cipher_len;
-
- if (PPP_CipherFinal(ctx, cipher+offset, &cipher_len)) {
-
- if (memcmp(cipher, expect, 80) == 0) {
-
- success = 1;
- }
- }
- }
- }
- PPP_CIPHER_CTX_free(ctx);
- }
-
- return success;
-}
-
-
-int test_des_decrypt()
-{
- PPP_CIPHER_CTX* ctx = NULL;
- int success = 0;
-
- unsigned char key[8] = {
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
- };
-
- unsigned char cipher[80] = {
- 0x45, 0xdb, 0x80, 0x45, 0x16, 0xd0, 0x6d, 0x60,
- 0x92, 0x23, 0x4b, 0xd3, 0x9d, 0x36, 0xb8, 0x1a,
- 0xa4, 0x1a, 0xf7, 0xb1, 0x60, 0xfb, 0x74, 0x16,
- 0xa6, 0xdc, 0xe1, 0x14, 0xb7, 0xed, 0x48, 0x5a,
- 0x2b, 0xed, 0x68, 0x9d, 0x19, 0xd6, 0xb1, 0xb8,
- 0x91, 0xff, 0xea, 0x62, 0xac, 0xe7, 0x49, 0xdd,
- 0xfa, 0x4d, 0xa4, 0x01, 0x3f, 0xea, 0xca, 0xb4,
- 0xb6, 0xdc, 0xd3, 0x04, 0x45, 0x07, 0x74, 0xed,
- 0xa6, 0xdc, 0xe1, 0x14, 0xb7, 0xed, 0x48, 0x5a,
- 0xbb, 0x9b, 0x13, 0x31, 0xf4, 0xa9, 0x32, 0x49
- };
-
- unsigned char expect[80] = {
- 0x4f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63,
- 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x20, 0x73, 0x69,
- 0x64, 0x65, 0x2c, 0x20, 0x74, 0x68, 0x69, 0x73,
- 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
- 0x73, 0x65, 0x6e, 0x64, 0x20, 0x6b, 0x65, 0x79,
- 0x3b, 0x20, 0x6f, 0x6e, 0x20, 0x74, 0x68, 0x65,
- 0x20, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x20,
- 0x73, 0x69, 0x64, 0x65, 0x2c, 0x20, 0x69, 0x74,
- 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
- 0x72, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x20
- };
-
- unsigned char plain[80] = {};
- int outlen = 0;
- int offset = 0;
-
- ctx = PPP_CIPHER_CTX_new();
- if (ctx) {
-
- if (PPP_CipherInit(ctx, PPP_des_ecb(), key, NULL, 0)) {
-
- if (PPP_CipherUpdate(ctx, plain, &outlen, cipher, sizeof(cipher))) {
-
- offset += outlen;
-
- if (PPP_CipherFinal(ctx, plain+offset, &outlen)) {
-
- if (memcmp(plain, expect, 80) == 0) {
-
- success = 1;
- }
- }
- }
- }
- PPP_CIPHER_CTX_free(ctx);
- }
-
- return success;
-}
-
-int main(int argc, char *argv[])
-{
- int failure = 0;
-
- if (!PPP_crypto_init()) {
- printf("Couldn't initialize crypto test\n");
- return -1;
- }
-
- if (!test_md4()) {
- printf("MD4 test failed\n");
- failure++;
- }
-
- if (!test_md5()) {
- printf("MD5 test failed\n");
- failure++;
- }
-
- if (!test_sha()) {
- printf("SHA test failed\n");
- failure++;
- }
-
- if (!test_des_encrypt()) {
- printf("DES encryption test failed\n");
- failure++;
- }
-
- if (!test_des_decrypt()) {
- printf("DES decryption test failed\n");
- failure++;
- }
-
- if (!PPP_crypto_deinit()) {
- printf("Couldn't deinitialize crypto test\n");
- return -1;
- }
-
- return failure;
-}
-
-#endif
projects / ppp.git / blobdiff