crypto_base64.c File Reference

#include <rz_lib.h>
#include <rz_crypto.h>
#include <rz_util.h>

Go to the source code of this file.

Functions
static bool	base64_set_key (RzCrypto *cry, const ut8 *key, int keylen, int mode, int direction)
static int	base64_get_key_size (RzCrypto *cry)
static bool	base64_use (const char *algo)
static bool	update (RzCrypto *cry, const ut8 *buf, int len)
static bool	final (RzCrypto *cry, const ut8 *buf, int len)

Variables
RzCryptoPlugin	rz_crypto_plugin_base64
RZ_API RzLibStruct	rizin_plugin

Function Documentation

base64_get_key_size()

static int base64_get_key_size ( RzCrypto *  cry )

static

Definition at line 13 of file crypto_base64.c.

                                              {
    return 0;
}

base64_set_key()

static bool base64_set_key ( RzCrypto *  cry, const ut8 *  key, int  keylen, int  mode, int  direction  )

static

Definition at line 8 of file crypto_base64.c.

                                                                                               {
    cry->dir = direction;
    return true;
}

References rz_crypto_t::dir.

base64_use()

static bool base64_use ( const char *  algo )

static

Definition at line 17 of file crypto_base64.c.

                                         {
    return !strcmp(algo, "base64");
}

final()

static bool final ( RzCrypto *  cry, const ut8 *  buf, int  len  )

static

Definition at line 53 of file crypto_base64.c.

                                                          {
    if (!buf) {
        return true;
    }
    return update(cry, buf, len);
}

References len, and update().

update()

static bool update ( RzCrypto *  cry, const ut8 *  buf, int  len  )

static

Definition at line 21 of file crypto_base64.c.

                                                           {
    if (len < 1) {
        return false;
    }
 
    int olen = 0;
    ut8 *obuf = NULL;
    if (cry->dir == RZ_CRYPTO_DIR_ENCRYPT) {
        olen = ((len + 2) / 3) * 4;
        obuf = malloc(olen + 1);
        if (!obuf) {
            return false;
        }
        rz_base64_encode((char *)obuf, (const ut8 *)buf, len);
    } else {
        olen = 4 + ((len / 4) * 3);
        if (len > 0) {
            olen -= (buf[len - 1] == '=') ? ((buf[len - 2] == '=') ? 2 : 1) : 0;
        }
        obuf = malloc(olen + 4);
        if (!obuf) {
            return false;
        }
        olen = rz_base64_decode(obuf, (const char *)buf, len);
    }
    if (olen > 0) {
        rz_crypto_append(cry, obuf, olen);
    }
    free(obuf);
    return true;
}

References rz_crypto_t::dir, free(), len, malloc(), NULL, obuf, rz_base64_decode(), rz_base64_encode(), rz_crypto_append(), and RZ_CRYPTO_DIR_ENCRYPT.

Referenced by final().

Variable Documentation

rizin_plugin

RZ_API RzLibStruct rizin_plugin

Initial value:

= {
    .type = RZ_LIB_TYPE_CRYPTO,
    .data = &rz_crypto_plugin_base64,
    .version = RZ_VERSION
}

Definition at line 72 of file crypto_base64.c.

rz_crypto_plugin_base64

RzCryptoPlugin rz_crypto_plugin_base64

Initial value:

= {
    .name = "base64",
    .author = "rakholiyajenish.07",
    .license = "LGPL-3",
    .set_key = base64_set_key,
    .get_key_size = base64_get_key_size,
    .use = base64_use,
    .update = update,
    .final = final
}

Definition at line 60 of file crypto_base64.c.