C++ (Cpp) init_cipher Examples

Example #1

File: encrypt.c Project: wongzigii/shadowsocks-iOS

void encrypt_buf(struct encryption_ctx *ctx, unsigned char *buf, size_t *len) {
    if (ctx->cipher == CIPHER_TABLE) {
        table_encrypt(buf, *len);
    } else {
        if (ctx->status == STATUS_EMPTY) {
            size_t iv_len = encryption_iv_len[_method];
            memset(ctx->iv, 0, iv_len);
            RAND_bytes(ctx->iv, iv_len);
            init_cipher(ctx, ctx->iv, iv_len, 1);
            size_t out_len = *len + ctx->iv_len;
            unsigned char *cipher_text = malloc(out_len);
            cipher_update(ctx, cipher_text, &out_len, buf, *len);
            memcpy(buf, ctx->iv, iv_len);
            memcpy(buf + iv_len, cipher_text, out_len);
            *len = iv_len + out_len;
            free(cipher_text);
        } else {
            size_t out_len = *len + ctx->iv_len;
            unsigned char *cipher_text = malloc(out_len);
            cipher_update(ctx, cipher_text, &out_len, buf, *len);
            memcpy(buf, cipher_text, out_len);
            *len = out_len;
            free(cipher_text);
        }
    }
}

Example #2

File: encrypt.c Project: hynnet/ShadowWeb

void encrypt_buf(struct encryption_ctx *ctx, char *buf, int *len) {
    if (_method == EncryptionTable) {
        table_encrypt(buf, *len);
    } else {
        if (ctx->status == STATUS_EMPTY) {
            int iv_len = encryption_iv_len[_method];
            unsigned char iv[EVP_MAX_IV_LENGTH];
            memset(iv, 0, iv_len);
            RAND_bytes(iv, iv_len);
            init_cipher(ctx, iv, iv_len, 1);
            int out_len = *len + EVP_CIPHER_CTX_block_size(ctx->ctx);
            unsigned char *cipher_text = malloc(out_len);
            EVP_CipherUpdate(ctx->ctx, cipher_text, &out_len, buf, *len);
            memcpy(buf, iv, iv_len);
            memcpy(buf + iv_len, cipher_text, out_len);
            *len = iv_len + out_len;
            free(cipher_text);
        } else {
            int out_len = *len + EVP_CIPHER_CTX_block_size(ctx->ctx);
            unsigned char *cipher_text = malloc(out_len);
            EVP_CipherUpdate(ctx->ctx, cipher_text, &out_len, buf, *len);
            memcpy(buf, cipher_text, out_len);
            *len = out_len;
            free(cipher_text);
        }
    }
}

Example #3

File: fibjs.cpp Project: jim4node/fibjs

void init(int32_t argc, char *argv[])
{
    ::setlocale(LC_ALL, "");

    int32_t cpus = 0;

    os_base::CPUs(cpus);
    if (cpus < 2)
        cpus = 2;

    exlib::Service::init(cpus + 1);

    init_start_argv(argc, argv);

    if (options(&argc, argv))
        _exit(0);

    init_prof();
    init_argv(argc, argv);
    init_date();
    init_rt();
    init_sandbox();
    init_cipher();
    init_acThread();
    init_logger();
    init_aio();
    init_fiber();

    srand((unsigned int)time(0));

    v8::Platform *platform = v8::platform::CreateDefaultPlatform();
    v8::V8::InitializePlatform(platform);

    v8::V8::Initialize();

    init_Task(cpus);
}

Example #4

File: encrypt.c Project: hynnet/ShadowWeb

void decrypt_buf(struct encryption_ctx *ctx, char *buf, int *len) {
    if (_method == EncryptionTable) {
        table_decrypt(buf, *len);
    } else {
        if (ctx->status == STATUS_EMPTY) {
            int iv_len = encryption_iv_len[_method];
            init_cipher(ctx, buf, iv_len, 0);
            int out_len = *len + EVP_CIPHER_CTX_block_size(ctx->ctx);
            out_len -= iv_len;
            unsigned char *cipher_text = malloc(out_len);
            EVP_CipherUpdate(ctx->ctx, cipher_text, &out_len, buf + iv_len, *len - iv_len);
            memcpy(buf, cipher_text, out_len);
            *len = out_len;
            free(cipher_text);
        } else {
            int out_len = *len + EVP_CIPHER_CTX_block_size(ctx->ctx);
            unsigned char *cipher_text = malloc(out_len);
            EVP_CipherUpdate(ctx->ctx, cipher_text, &out_len, buf, *len);
            memcpy(buf, cipher_text, out_len);
            *len = out_len;
            free(cipher_text);
        }
    }
}