C++ (Cpp) ssh_aes_ctr_iv примеры использования

Пример #1

Файл: cipher.c Проект: Hacker-One/backdoor_rootkit

void
cipher_set_keyiv(CipherContext *cc, u_char *iv)
{
	Cipher *c = cc->cipher;
	int evplen = 0;

	switch (c->number) {
	case SSH_CIPHER_SSH2:
	case SSH_CIPHER_DES:
	case SSH_CIPHER_BLOWFISH:
		evplen = EVP_CIPHER_CTX_iv_length(&cc->evp);
		if (evplen == 0)
			return;
#ifdef USE_BUILTIN_RIJNDAEL
		if (c->evptype == evp_rijndael)
			ssh_rijndael_iv(&cc->evp, 1, iv, evplen);
		else
#endif
		if (c->evptype == evp_aes_128_ctr)
			ssh_aes_ctr_iv(&cc->evp, 1, iv, evplen);
		else
			memcpy(cc->evp.iv, iv, evplen);
		break;
	case SSH_CIPHER_3DES:
		ssh1_3des_iv(&cc->evp, 1, iv, 24);
		break;
	default:
		fatal("%s: bad cipher %d", __func__, c->number);
	}
}

Пример #2

Файл: cipher.c Проект: gosudream/netbsd-src

void
cipher_get_keyiv(CipherContext *cc, u_char *iv, u_int len)
{
	Cipher *c = cc->cipher;
	int evplen;

	switch (c->number) {
	case SSH_CIPHER_NONE:
	case SSH_CIPHER_SSH2:
	case SSH_CIPHER_DES:
	case SSH_CIPHER_BLOWFISH:
		evplen = EVP_CIPHER_CTX_iv_length(&cc->evp);
		if (evplen <= 0)
			return;
		if ((u_int)evplen != len)
			fatal("%s: wrong iv length %d != %d", __func__,
			    evplen, len);
		if (c->evptype == evp_aes_128_ctr)
			ssh_aes_ctr_iv(&cc->evp, 0, iv, len);
		else
			memcpy(iv, cc->evp.iv, len);
		break;
	case SSH_CIPHER_3DES:
		ssh1_3des_iv(&cc->evp, 0, iv, 24);
		break;
	default:
		fatal("%s: bad cipher %d", __func__, c->number);
	}
}

Пример #3

Файл: cipher.c Проект: FreeBSDFoundation/freebsd

int
cipher_set_keyiv(struct sshcipher_ctx *cc, const u_char *iv, size_t len)
{
#ifdef WITH_OPENSSL
	const struct sshcipher *c = cc->cipher;
	int evplen = 0;
#endif

	if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0)
		return 0;
	if ((cc->cipher->flags & CFLAG_NONE) != 0)
		return 0;

#ifdef WITH_OPENSSL
	evplen = EVP_CIPHER_CTX_iv_length(cc->evp);
	if (evplen <= 0)
		return SSH_ERR_LIBCRYPTO_ERROR;
	if ((size_t)evplen != len)
		return SSH_ERR_INVALID_ARGUMENT;
#ifndef OPENSSL_HAVE_EVPCTR
	/* XXX iv arg is const, but ssh_aes_ctr_iv isn't */
	if (c->evptype == evp_aes_128_ctr)
		ssh_aes_ctr_iv(cc->evp, 1, (u_char *)iv, evplen);
	else
#endif
	if (cipher_authlen(c)) {
		/* XXX iv arg is const, but EVP_CIPHER_CTX_ctrl isn't */
		if (!EVP_CIPHER_CTX_ctrl(cc->evp,
		    EVP_CTRL_GCM_SET_IV_FIXED, -1, (void *)iv))
			return SSH_ERR_LIBCRYPTO_ERROR;
	} else if (!EVP_CIPHER_CTX_set_iv(cc->evp, iv, evplen))
		return SSH_ERR_LIBCRYPTO_ERROR;
#endif
	return 0;
}

Пример #4

Файл: cipher.c Проект: mpitzl/libopenssh

int
cipher_get_keyiv(struct sshcipher_ctx *cc, u_char *iv, u_int len)
{
	struct sshcipher *c = cc->cipher;
	int evplen;

	switch (c->number) {
	case SSH_CIPHER_SSH2:
	case SSH_CIPHER_DES:
	case SSH_CIPHER_BLOWFISH:
		evplen = EVP_CIPHER_CTX_iv_length(&cc->evp);
		if (evplen == 0)
			return 0;
		else if (evplen < 0)
			return SSH_ERR_LIBCRYPTO_ERROR;
		if ((u_int)evplen != len)
			return SSH_ERR_INVALID_ARGUMENT;
		if (c->evptype == evp_aes_128_ctr)
			return ssh_aes_ctr_iv(&cc->evp, 0, iv, len);
		else
			memcpy(iv, cc->evp.iv, len);
		return 0;
	case SSH_CIPHER_3DES:
		return ssh1_3des_iv(&cc->evp, 0, iv, 24);
	default:
		return SSH_ERR_INVALID_ARGUMENT;
	}
}

Пример #5

Файл: cipher.c Проект: johnjohnsp1/ncrack

int
cipher_get_keyiv(struct sshcipher_ctx *cc, u_char *iv, u_int len)
{
	const struct sshcipher *c = cc->cipher;
#ifdef WITH_OPENSSL
 	int evplen;
#endif

	if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0) {
		if (len != 0)
			return SSH_ERR_INVALID_ARGUMENT;
		return 0;
	}
	if ((cc->cipher->flags & CFLAG_AESCTR) != 0) {
		if (len != sizeof(cc->ac_ctx.ctr))
			return SSH_ERR_INVALID_ARGUMENT;
		memcpy(iv, cc->ac_ctx.ctr, len);
		return 0;
	}
	if ((cc->cipher->flags & CFLAG_NONE) != 0)
		return 0;

	switch (c->number) {
#ifdef WITH_OPENSSL
	case SSH_CIPHER_SSH2:
	case SSH_CIPHER_DES:
	case SSH_CIPHER_BLOWFISH:
		evplen = EVP_CIPHER_CTX_iv_length(&cc->evp);
		if (evplen == 0)
			return 0;
		else if (evplen < 0)
			return SSH_ERR_LIBCRYPTO_ERROR;
		if ((u_int)evplen != len)
			return SSH_ERR_INVALID_ARGUMENT;
#ifndef OPENSSL_HAVE_EVPCTR
		if (c->evptype == evp_aes_128_ctr)
			ssh_aes_ctr_iv(&cc->evp, 0, iv, len);
		else
#endif
		if (cipher_authlen(c)) {
			if (!EVP_CIPHER_CTX_ctrl(&cc->evp, EVP_CTRL_GCM_IV_GEN,
			   len, iv))
			       return SSH_ERR_LIBCRYPTO_ERROR;
		} else
			memcpy(iv, cc->evp.iv, len);
		break;
#endif
#ifdef WITH_SSH1
	case SSH_CIPHER_3DES:
		return ssh1_3des_iv(&cc->evp, 0, iv, 24);
#endif
	default:
		return SSH_ERR_INVALID_ARGUMENT;
	}
	return 0;
}

Пример #6

Файл: cipher.c Проект: andreiw/polaris

void
cipher_get_keyiv(CipherContext *cc, u_char *iv, u_int len)
{
	Cipher *c = cc->cipher;
	u_char *civ = NULL;
	int evplen;

	switch (c->number) {
	case SSH_CIPHER_SSH2:
	case SSH_CIPHER_DES:
	case SSH_CIPHER_BLOWFISH:
		evplen = EVP_CIPHER_CTX_iv_length(&cc->evp);
		if (evplen == 0)
			return;
		if (evplen != len)
			fatal("%s: wrong iv length %d != %d", __func__,
			    evplen, len);

#if (OPENSSL_VERSION_NUMBER < 0x00907000L)
		if (c->evptype == evp_rijndael) {
			struct ssh_rijndael_ctx *aesc;

			aesc = EVP_CIPHER_CTX_get_app_data(&cc->evp);
			if (aesc == NULL)
				fatal("%s: no rijndael context", __func__);
			civ = aesc->r_iv;
		} else
#endif
		if (c->evptype == evp_aes_128_ctr) {
			ssh_aes_ctr_iv(&cc->evp, 0, iv, len);
			return;
		} else {
			civ = cc->evp.iv;
		}
		break;
	case SSH_CIPHER_3DES: {
		struct ssh1_3des_ctx *desc;
		if (len != 24)
			fatal("%s: bad 3des iv length: %d", __func__, len);
		desc = EVP_CIPHER_CTX_get_app_data(&cc->evp);
		if (desc == NULL)
			fatal("%s: no 3des context", __func__);
		debug3("%s: Copying 3DES IV", __func__);
		memcpy(iv, desc->k1.iv, 8);
		memcpy(iv + 8, desc->k2.iv, 8);
		memcpy(iv + 16, desc->k3.iv, 8);
		return;
	}
	default:
		fatal("%s: bad cipher %d", __func__, c->number);
	}
	memcpy(iv, civ, len);
}

Пример #7

Файл: cipher.c Проект: andreiw/polaris

void
cipher_set_keyiv(CipherContext *cc, u_char *iv)
{
	Cipher *c = cc->cipher;
	u_char *div = NULL;
	int evplen = 0;

	switch (c->number) {
	case SSH_CIPHER_SSH2:
	case SSH_CIPHER_DES:
	case SSH_CIPHER_BLOWFISH:
		evplen = EVP_CIPHER_CTX_iv_length(&cc->evp);
		if (evplen == 0)
			return;

#if (OPENSSL_VERSION_NUMBER < 0x00907000L)
		if (c->evptype == evp_rijndael) {
			struct ssh_rijndael_ctx *aesc;

			aesc = EVP_CIPHER_CTX_get_app_data(&cc->evp);
			if (aesc == NULL)
				fatal("%s: no rijndael context", __func__);
			div = aesc->r_iv;
		} else
#endif
		if (c->evptype == evp_aes_128_ctr) {
			ssh_aes_ctr_iv(&cc->evp, 1, iv, evplen);
			return;
		} else {
			div = cc->evp.iv;
		}
		break;
	case SSH_CIPHER_3DES: {
		struct ssh1_3des_ctx *desc;
		desc = EVP_CIPHER_CTX_get_app_data(&cc->evp);
		if (desc == NULL)
			fatal("%s: no 3des context", __func__);
		debug3("%s: Installed 3DES IV", __func__);
		memcpy(desc->k1.iv, iv, 8);
		memcpy(desc->k2.iv, iv + 8, 8);
		memcpy(desc->k3.iv, iv + 16, 8);
		return;
	}
	default:
		fatal("%s: bad cipher %d", __func__, c->number);
	}
	memcpy(div, iv, evplen);
}

Пример #8

Файл: cipher.c Проект: Alkzndr/freebsd

void
cipher_get_keyiv(CipherContext *cc, u_char *iv, u_int len)
{
	const Cipher *c = cc->cipher;
	int evplen;

	if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0) {
		if (len != 0)
			fatal("%s: wrong iv length %d != %d", __func__, len, 0);
		return;
	}

	switch (c->number) {
#ifdef	NONE_CIPHER_ENABLED
	case SSH_CIPHER_NONE:
#endif
	case SSH_CIPHER_SSH2:
	case SSH_CIPHER_DES:
	case SSH_CIPHER_BLOWFISH:
		evplen = EVP_CIPHER_CTX_iv_length(&cc->evp);
		if (evplen <= 0)
			return;
		if ((u_int)evplen != len)
			fatal("%s: wrong iv length %d != %d", __func__,
			    evplen, len);
#ifdef USE_BUILTIN_RIJNDAEL
		if (c->evptype == evp_rijndael)
			ssh_rijndael_iv(&cc->evp, 0, iv, len);
		else
#endif
#ifndef OPENSSL_HAVE_EVPCTR
		if (c->evptype == evp_aes_128_ctr)
			ssh_aes_ctr_iv(&cc->evp, 0, iv, len);
		else
#endif
		memcpy(iv, cc->evp.iv, len);
		break;
	case SSH_CIPHER_3DES:
		ssh1_3des_iv(&cc->evp, 0, iv, 24);
		break;
	default:
		fatal("%s: bad cipher %d", __func__, c->number);
	}
}

Пример #9

Файл: cipher.c Проект: FreeBSDFoundation/freebsd

int
cipher_get_keyiv(struct sshcipher_ctx *cc, u_char *iv, size_t len)
{
#ifdef WITH_OPENSSL
	const struct sshcipher *c = cc->cipher;
	int evplen;
#endif

	if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0) {
		if (len != 0)
			return SSH_ERR_INVALID_ARGUMENT;
		return 0;
	}
	if ((cc->cipher->flags & CFLAG_AESCTR) != 0) {
		if (len != sizeof(cc->ac_ctx.ctr))
			return SSH_ERR_INVALID_ARGUMENT;
		memcpy(iv, cc->ac_ctx.ctr, len);
		return 0;
	}
	if ((cc->cipher->flags & CFLAG_NONE) != 0)
		return 0;

#ifdef WITH_OPENSSL
	evplen = EVP_CIPHER_CTX_iv_length(cc->evp);
	if (evplen == 0)
		return 0;
	else if (evplen < 0)
		return SSH_ERR_LIBCRYPTO_ERROR;
	if ((size_t)evplen != len)
		return SSH_ERR_INVALID_ARGUMENT;
#ifndef OPENSSL_HAVE_EVPCTR
	if (c->evptype == evp_aes_128_ctr)
		ssh_aes_ctr_iv(cc->evp, 0, iv, len);
	else
#endif
	if (cipher_authlen(c)) {
		if (!EVP_CIPHER_CTX_ctrl(cc->evp, EVP_CTRL_GCM_IV_GEN,
		   len, iv))
		       return SSH_ERR_LIBCRYPTO_ERROR;
	} else if (!EVP_CIPHER_CTX_get_iv(cc->evp, iv, len))
	       return SSH_ERR_LIBCRYPTO_ERROR;
#endif
	return 0;
}

Пример #10

Файл: cipher.c Проект: mpitzl/libopenssh

int
cipher_set_keyiv(struct sshcipher_ctx *cc, const u_char *iv)
{
	struct sshcipher *c = cc->cipher;
	int evplen = 0;

	switch (c->number) {
	case SSH_CIPHER_SSH2:
	case SSH_CIPHER_DES:
	case SSH_CIPHER_BLOWFISH:
		evplen = EVP_CIPHER_CTX_iv_length(&cc->evp);
		if (evplen <= 0)
			return SSH_ERR_LIBCRYPTO_ERROR;
		if (c->evptype == evp_aes_128_ctr)
			return ssh_aes_ctr_iv(&cc->evp, 1, (u_char *)iv, evplen);
		else
			memcpy(cc->evp.iv, iv, evplen);
		return 0;
	case SSH_CIPHER_3DES:
		return ssh1_3des_iv(&cc->evp, 1, (u_char *)iv, 24);
	default:
		return SSH_ERR_INVALID_ARGUMENT;
	}
}