mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-03 13:13:30 +01:00
179 lines
4.9 KiB
C
179 lines
4.9 KiB
C
/*
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* Copyright 2012-2022 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* Simple ARIA CBC encryption demonstration program.
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*/
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#include <stdio.h>
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#include <openssl/err.h>
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#include <openssl/bio.h>
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#include <openssl/evp.h>
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#include <openssl/crypto.h>
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#include <openssl/core_names.h>
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/* ARIA key */
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static const unsigned char cbc_key[] = {
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0xee, 0xbc, 0x1f, 0x57, 0x48, 0x7f, 0x51, 0x92, 0x1c, 0x04, 0x65, 0x66,
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0x5f, 0x8a, 0xe6, 0xd1, 0x65, 0x8b, 0xb2, 0x6d, 0xe6, 0xf8, 0xa0, 0x69,
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0xa3, 0x52, 0x02, 0x93, 0xa5, 0x72, 0x07, 0x8f
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};
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/* Unique initialisation vector */
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static const unsigned char cbc_iv[] = {
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0x99, 0xaa, 0x3e, 0x68, 0xed, 0x81, 0x73, 0xa0, 0xee, 0xd0, 0x66, 0x84,
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0x99, 0xaa, 0x3e, 0x68,
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};
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/* Example plaintext to encrypt */
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static const unsigned char cbc_pt[] = {
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0xf5, 0x6e, 0x87, 0x05, 0x5b, 0xc3, 0x2d, 0x0e, 0xeb, 0x31, 0xb2, 0xea,
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0xcc, 0x2b, 0xf2, 0xa5
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};
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/* Expected ciphertext value */
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static const unsigned char cbc_ct[] = {
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0x9a, 0x44, 0xe6, 0x85, 0x94, 0x26, 0xff, 0x30, 0x03, 0xd3, 0x7e, 0xc6,
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0xb5, 0x4a, 0x09, 0x66, 0x39, 0x28, 0xf3, 0x67, 0x14, 0xbc, 0xe8, 0xe2,
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0xcf, 0x31, 0xb8, 0x60, 0x42, 0x72, 0x6d, 0xc8
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};
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/*
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* A library context and property query can be used to select & filter
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* algorithm implementations. If they are NULL then the default library
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* context and properties are used.
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*/
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OSSL_LIB_CTX *libctx = NULL;
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const char *propq = NULL;
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int aria_cbc_encrypt(void)
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{
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int ret = 0;
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EVP_CIPHER_CTX *ctx;
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EVP_CIPHER *cipher = NULL;
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int outlen, tmplen;
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size_t cbc_ivlen = sizeof(cbc_iv);
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unsigned char outbuf[1024];
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unsigned char outtag[16];
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printf("ARIA CBC Encrypt:\n");
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printf("Plaintext:\n");
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BIO_dump_fp(stdout, cbc_pt, sizeof(cbc_pt));
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/* Create a context for the encrypt operation */
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if ((ctx = EVP_CIPHER_CTX_new()) == NULL)
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goto err;
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/* Fetch the cipher implementation */
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if ((cipher = EVP_CIPHER_fetch(libctx, "ARIA-256-CBC", propq)) == NULL)
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goto err;
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/*
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* Initialise an encrypt operation with the cipher/mode, key and IV.
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* We are not setting any custom params so let params be just NULL.
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*/
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if (!EVP_EncryptInit_ex2(ctx, cipher, cbc_key, cbc_iv, /* params */ NULL))
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goto err;
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/* Encrypt plaintext */
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if (!EVP_EncryptUpdate(ctx, outbuf, &outlen, cbc_pt, sizeof(cbc_pt)))
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goto err;
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/* Finalise: there can be some additional output from padding */
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if (!EVP_EncryptFinal_ex(ctx, outbuf + outlen, &tmplen))
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goto err;
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outlen += tmplen;
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/* Output encrypted block */
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printf("Ciphertext (outlen:%d):\n", outlen);
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BIO_dump_fp(stdout, outbuf, outlen);
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if (sizeof(cbc_ct) == outlen && !CRYPTO_memcmp(outbuf, cbc_ct, outlen))
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printf("Final ciphertext matches expected ciphertext\n");
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else
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printf("Final ciphertext differs from expected ciphertext\n");
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ret = 1;
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err:
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if (!ret)
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ERR_print_errors_fp(stderr);
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EVP_CIPHER_free(cipher);
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EVP_CIPHER_CTX_free(ctx);
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return ret;
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}
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int aria_cbc_decrypt(void)
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{
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int ret = 0;
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EVP_CIPHER_CTX *ctx;
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EVP_CIPHER *cipher = NULL;
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int outlen, tmplen, rv;
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size_t cbc_ivlen = sizeof(cbc_iv);
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unsigned char outbuf[1024];
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printf("ARIA CBC Decrypt:\n");
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printf("Ciphertext:\n");
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BIO_dump_fp(stdout, cbc_ct, sizeof(cbc_ct));
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if ((ctx = EVP_CIPHER_CTX_new()) == NULL)
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goto err;
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/* Fetch the cipher implementation */
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if ((cipher = EVP_CIPHER_fetch(libctx, "ARIA-256-CBC", propq)) == NULL)
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goto err;
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/*
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* Initialise an encrypt operation with the cipher/mode, key and IV.
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* We are not setting any custom params so let params be just NULL.
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*/
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if (!EVP_DecryptInit_ex2(ctx, cipher, cbc_key, cbc_iv, /* params */ NULL))
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goto err;
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/* Decrypt plaintext */
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if (!EVP_DecryptUpdate(ctx, outbuf, &outlen, cbc_ct, sizeof(cbc_ct)))
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goto err;
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/* Finalise: there can be some additional output from padding */
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if (!EVP_DecryptFinal_ex(ctx, outbuf + outlen, &tmplen))
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goto err;
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outlen += tmplen;
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/* Output decrypted block */
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printf("Plaintext (outlen:%d):\n", outlen);
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BIO_dump_fp(stdout, outbuf, outlen);
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if (sizeof(cbc_pt) == outlen && !CRYPTO_memcmp(outbuf, cbc_pt, outlen))
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printf("Final plaintext matches original plaintext\n");
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else
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printf("Final plaintext differs from original plaintext\n");
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ret = 1;
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err:
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if (!ret)
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ERR_print_errors_fp(stderr);
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EVP_CIPHER_free(cipher);
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EVP_CIPHER_CTX_free(ctx);
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return ret;
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}
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int main(int argc, char **argv)
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{
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if (!aria_cbc_encrypt())
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return 1;
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if (!aria_cbc_decrypt())
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return 1;
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return 0;
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}
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