sharpetronics/strongswan
1
0
Fork 0
mirror of https://github.com/strongswan/strongswan.git synced 2025-10-04 00:00:14 -04:00
Code Issues Projects Releases Wiki Activity

introduced encryption test vectors

Browse Source
This commit is contained in:
Andreas Steffen 2009-05-14 13:55:48 +02:00
parent 0a8ad227d4
commit 2b02b0fe9f
7 changed files with 246 additions and 76 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
src/pluto/alg/ike_alg_blowfish.c
View File

@ -16,6 +16,81 @@
#define BLOWFISH_KEY_MAX_LEN 448
/**
* Blowfish CBC encryption test vectors
*/
/**
* Test vector by Eric Young
*/
static const u_char bf_test0_key[] = {
0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87
};
static const u_char bf_test0_iv[] = {
0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10
};
static const u_char bf_test0_plain[] = {
/* "7654321 Now is the time for " */
0x37, 0x36, 0x35, 0x34, 0x33, 0x32, 0x31, 0x20,
0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74,
0x68, 0x65, 0x20, 0x74, 0x69, 0x6D, 0x65, 0x20,
0x66, 0x6F, 0x72, 0x20, 0x00, 0x00, 0x00, 0x00
};
static const u_char bf_test0_cipher[] = {
0x6B, 0x77, 0xB4, 0xD6, 0x30, 0x06, 0xDE, 0xE6,
0x05, 0xB1, 0x56, 0xE2, 0x74, 0x03, 0x97, 0x93,
0x58, 0xDE, 0xB9, 0xE7, 0x15, 0x46, 0x16, 0xD9,
0x59, 0xF1, 0x65, 0x2B, 0xD5, 0xFF, 0x92, 0xCC
};
/**
* Test vector by Chilkat Software
* (www.chilkatsoft.com/p/php_blowfish.asp)
*/
static const u_char bf_test1_key[] = {
0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50
};
static const u_char bf_test1_iv[] = {
0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38
};
static const u_char bf_test1_plain[] = {
/* "The quick brown fox jumped over the lazy dog" */
0x54, 0x68, 0x65, 0x20, 0x71, 0x75, 0x69, 0x63,
0x6b, 0x20, 0x62, 0x72, 0x6f, 0x77, 0x6e, 0x20,
0x66, 0x6f, 0x78, 0x20, 0x6a, 0x75, 0x6d, 0x70,
0x65, 0x64, 0x20, 0x6f, 0x76, 0x65, 0x72, 0x20,
0x74, 0x68, 0x65, 0x20, 0x6c, 0x61, 0x7a, 0x79,
0x20, 0x64, 0x6f, 0x67, 0x00, 0x00, 0x00, 0x00
};
static const u_char bf_test1_cipher[] = {
0x27, 0x68, 0x55, 0xca, 0x6c, 0x0d, 0x60, 0xf7,
0xd9, 0x70, 0x82, 0x10, 0x44, 0x0c, 0x10, 0x72,
0xe0, 0x5d, 0x07, 0x8e, 0x73, 0x3b, 0x34, 0xb4,
0x19, 0x8d, 0x60, 0x9d, 0xc2, 0xfc, 0xc2, 0xf0,
0xc3, 0x09, 0x26, 0xcd, 0xef, 0x3b, 0x6d, 0x52,
0xba, 0xf6, 0xe3, 0x45, 0xaa, 0x03, 0xf8, 0x3e
};
static const enc_testvector_t bf_enc_testvectors[] = {
{ sizeof(bf_test0_key), bf_test0_key, bf_test0_iv,
sizeof(bf_test0_plain), bf_test0_plain, bf_test0_cipher },
{ sizeof(bf_test1_key), bf_test1_key, bf_test1_iv,
sizeof(bf_test1_plain), bf_test1_plain, bf_test1_cipher },
{ 0, NULL, NULL, 0, NULL, NULL }
};
static void
do_blowfish(u_int8_t *buf, size_t buf_len, u_int8_t *key, size_t key_size, u_int8_t *iv, bool enc)
{
@ -36,6 +111,7 @@ struct encrypt_desc algo_blowfish =
keydeflen: BLOWFISH_KEY_MIN_LEN,
keymaxlen: BLOWFISH_KEY_MAX_LEN,
do_crypt: do_blowfish,
enc_testvectors: bf_enc_testvectors,
};
int ike_alg_blowfish_init(void);

9
src/pluto/alg/ike_alg_serpent.c
View File

@ -50,10 +50,11 @@ struct encrypt_desc encrypt_desc_serpent =
algo_next: NULL,
enc_ctxsize: sizeof(struct serpent_context),
enc_blocksize: SERPENT_CBC_BLOCK_SIZE,
keyminlen: SERPENT_KEY_MIN_LEN,
keydeflen: SERPENT_KEY_DEF_LEN,
keymaxlen: SERPENT_KEY_MAX_LEN,
do_crypt: do_serpent,
keyminlen: SERPENT_KEY_MIN_LEN,
keydeflen: SERPENT_KEY_DEF_LEN,
keymaxlen: SERPENT_KEY_MAX_LEN,
do_crypt: do_serpent,
enc_testvectors: NULL
};
int ike_alg_serpent_init(void);

7
src/pluto/alg/ike_alg_twofish.c
View File

@ -48,11 +48,12 @@ struct encrypt_desc encrypt_desc_twofish =
algo_id: OAKLEY_TWOFISH_CBC,
algo_next: NULL,
enc_ctxsize: sizeof(twofish_context),
enc_blocksize: TWOFISH_CBC_BLOCK_SIZE,
keydeflen: TWOFISH_KEY_MIN_LEN,
keyminlen: TWOFISH_KEY_DEF_LEN,
enc_blocksize: TWOFISH_CBC_BLOCK_SIZE,
keydeflen: TWOFISH_KEY_MIN_LEN,
keyminlen: TWOFISH_KEY_DEF_LEN,
keymaxlen: TWOFISH_KEY_MAX_LEN,
do_crypt: do_twofish,
enc_testvectors: NULL
};
struct encrypt_desc encrypt_desc_twofish_ssh =

53
src/pluto/crypto.c
View File

@ -61,6 +61,7 @@ static struct encrypt_desc crypto_encryptor_3des =
keyminlen: DES_CBC_BLOCK_SIZE * 3 * BITS_PER_BYTE,
keymaxlen: DES_CBC_BLOCK_SIZE * 3 * BITS_PER_BYTE,
do_crypt: do_3des,
enc_testvectors: NULL
};
/* MD5 hash test vectors
@ -297,12 +298,12 @@ static const hmac_testvector_t md5_hmac_testvectors[] = {
static struct hash_desc crypto_hasher_md5 =
{
algo_type: IKE_ALG_HASH,
algo_id: OAKLEY_MD5,
algo_next: NULL,
hash_digest_size: HASH_SIZE_MD5,
hash_testvectors: md5_hash_testvectors,
hmac_testvectors: md5_hmac_testvectors,
algo_type: IKE_ALG_HASH,
algo_id: OAKLEY_MD5,
algo_next: NULL,
hash_digest_size: HASH_SIZE_MD5,
hash_testvectors: md5_hash_testvectors,
hmac_testvectors: md5_hmac_testvectors,
};
/* SHA-1 test vectors
@ -433,12 +434,12 @@ static const hmac_testvector_t sha1_hmac_testvectors[] = {
static struct hash_desc crypto_hasher_sha1 =
{
algo_type: IKE_ALG_HASH,
algo_id: OAKLEY_SHA,
algo_next: NULL,
hash_digest_size: HASH_SIZE_SHA1,
hash_testvectors: sha1_hash_testvectors,
hmac_testvectors: sha1_hmac_testvectors
algo_type: IKE_ALG_HASH,
algo_id: OAKLEY_SHA,
algo_next: NULL,
hash_digest_size: HASH_SIZE_SHA1,
hash_testvectors: sha1_hash_testvectors,
hmac_testvectors: sha1_hmac_testvectors
};
void init_crypto(void)
@ -557,6 +558,34 @@ void crypto_cbc_encrypt(const struct encrypt_desc *e, bool enc, u_int8_t *buf,
*/
}
encryption_algorithm_t oakley_to_encryption_algorithm(int alg)
{
switch (alg)
{
case OAKLEY_DES_CBC:
return ENCR_DES;
case OAKLEY_IDEA_CBC:
return ENCR_IDEA;
case OAKLEY_BLOWFISH_CBC:
return ENCR_BLOWFISH;
case OAKLEY_RC5_R16_B64_CBC:
return ENCR_RC5;
case OAKLEY_3DES_CBC:
return ENCR_3DES;
case OAKLEY_CAST_CBC:
return ENCR_CAST;
case OAKLEY_AES_CBC:
return ENCR_AES_CBC;
case OAKLEY_SERPENT_CBC:
return ENCR_SERPENT_CBC;
case OAKLEY_TWOFISH_CBC:
case OAKLEY_TWOFISH_CBC_SSH:
return ENCR_TWOFISH_CBC;
default:
return ENCR_UNDEFINED;
}
}
hash_algorithm_t oakley_to_hash_algorithm(int alg)
{
switch (alg)

5
src/pluto/crypto.h
View File

@ -12,8 +12,7 @@
* for more details.
*/
#include <gmp.h> /* GNU MP library */
#include <crypto/hashers/hasher.h>
#include <crypto/hashers/hasher.h>
#include <crypto/prfs/prf.h>
@ -60,7 +59,7 @@ void crypto_cbc_encrypt(const struct encrypt_desc *e, bool enc, u_int8_t *buf, s
/* unification of cryptographic hashing mechanisms */
extern encryption_algorithm_t oakley_to_encryption_algorithm(int alg);
extern hash_algorithm_t oakley_to_hash_algorithm(int alg);
extern pseudo_random_function_t oakley_to_prf(int alg);

160
src/pluto/ike_alg.c
View File

@ -22,7 +22,9 @@
#include <ipsec_policy.h>
#include <library.h>
#include <debug.h>
#include <crypto/hashers/hasher.h>
#include <crypto/crypters/crypter.h>
#include <crypto/prfs/prf.h>
#include "constants.h"
@ -42,7 +44,7 @@
#define return_on(var, val) do { var=val;goto return_out; } while(0);
/*
/**
* IKE algorithm list handling - registration and lookup
*/
@ -50,11 +52,11 @@
static struct ike_alg *ike_alg_base[IKE_ALG_MAX+1] = {NULL, NULL};
/*
* return ike_algo object by {type, id}
/**
* Return ike_algo object by {type, id}
*/
static struct ike_alg *
ike_alg_find(u_int algo_type, u_int algo_id, u_int keysize __attribute__((unused)))
static struct ike_alg *ike_alg_find(u_int algo_type, u_int algo_id,
u_int keysize __attribute__((unused)))
{
struct ike_alg *e = ike_alg_base[algo_type];
@ -65,11 +67,10 @@ ike_alg_find(u_int algo_type, u_int algo_id, u_int keysize __attribute__((unused
return (e != NULL && e->algo_id == algo_id) ? e : NULL;
}
/*
/**
* "raw" ike_alg list adding function
*/
int
ike_alg_add(struct ike_alg* a)
int ike_alg_add(struct ike_alg* a)
{
if (a->algo_type > IKE_ALG_MAX)
{
@ -98,45 +99,42 @@ ike_alg_add(struct ike_alg* a)
}
}
/*
* get IKE hash algorithm
/**
* Get IKE hash algorithm
*/
struct hash_desc *ike_alg_get_hasher(u_int alg)
{
return (struct hash_desc *) ike_alg_find(IKE_ALG_HASH, alg, 0);
}
/*
* get IKE encryption algorithm
/**
* Get IKE encryption algorithm
*/
struct encrypt_desc *ike_alg_get_encrypter(u_int alg)
{
return (struct encrypt_desc *) ike_alg_find(IKE_ALG_ENCRYPT, alg, 0);
}
/*
* check if IKE hash algorithm is present
/**
* Check if IKE hash algorithm is present
*/
bool
ike_alg_hash_present(u_int halg)
bool ike_alg_hash_present(u_int halg)
{
return ike_alg_get_hasher(halg) != NULL;
}
/*
/**
* check if IKE encryption algorithm is present
*/
bool
ike_alg_enc_present(u_int ealg)
bool ike_alg_enc_present(u_int ealg)
{
return ike_alg_get_encrypter(ealg) != NULL;
}
/*
/**
* Validate and register IKE hash algorithm object
*/
int
ike_alg_register_hash(struct hash_desc *hash_desc)
int ike_alg_register_hash(struct hash_desc *hash_desc)
{
const char *alg_name = NULL;
int ret = 0;
@ -166,11 +164,10 @@ return_out:
return ret;
}
/*
/**
* Validate and register IKE encryption algorithm object
*/
int
ike_alg_register_enc(struct encrypt_desc *enc_desc)
int ike_alg_register_enc(struct encrypt_desc *enc_desc)
{
int ret = ike_alg_add((struct ike_alg *)enc_desc);
@ -192,11 +189,10 @@ ike_alg_register_enc(struct encrypt_desc *enc_desc)
return ret;
}
/*
/**
* Get pfsgroup for this connection
*/
const struct oakley_group_desc *
ike_alg_pfsgroup(struct connection *c, lset_t policy)
const struct oakley_group_desc *ike_alg_pfsgroup(struct connection *c, lset_t policy)
{
const struct oakley_group_desc * ret = NULL;
@ -207,11 +203,10 @@ ike_alg_pfsgroup(struct connection *c, lset_t policy)
return ret;
}
/*
/**
* Create an OAKLEY proposal based on alg_info and policy
*/
struct db_context *
ike_alg_db_new(struct alg_info_ike *ai , lset_t policy)
struct db_context *ike_alg_db_new(struct alg_info_ike *ai , lset_t policy)
{
struct db_context *db_ctx = NULL;
struct ike_info *ike_info;
@ -318,11 +313,10 @@ fail:
return db_ctx;
}
/*
/**
* Show registered IKE algorithms
*/
void
ike_alg_list(void)
void ike_alg_list(void)
{
u_int i;
struct ike_alg *a;
@ -374,14 +368,13 @@ ike_alg_list(void)
}
}
/* Show IKE algorithms for
* - this connection (result from ike= string)
* - newest SA
/**
* Show IKE algorithms for this connection (result from ike= string)
* and newest SA
*/
void
ike_alg_show_connection(struct connection *c, const char *instance)
void ike_alg_show_connection(struct connection *c, const char *instance)
{
char buf[256];
char buf[BUF_LEN];
struct state *st;
if (c->alg_info_ike)
@ -420,11 +413,72 @@ ike_alg_show_connection(struct connection *c, const char *instance)
);
}
/*
/**
* Apply a suite of testvectors to an encryption algorithm
*/
static bool ike_encrypt_test(const struct encrypt_desc *desc)
{
bool encrypt_results = TRUE;
if (desc->enc_testvectors == NULL)
{
plog(" %s encryption self-test not available",
enum_name(&oakley_enc_names, desc->algo_id));
}
else
{
int i;
encryption_algorithm_t enc_alg;
enc_alg = oakley_to_encryption_algorithm(desc->algo_id);
for (i = 0; desc->enc_testvectors[i].key != NULL; i++)
{
bool result;
crypter_t *crypter;
chunk_t key = { (u_char*)desc->enc_testvectors[i].key,
desc->enc_testvectors[i].key_size };
chunk_t plain = { (u_char*)desc->enc_testvectors[i].plain,
desc->enc_testvectors[i].data_size};
chunk_t cipher = { (u_char*)desc->enc_testvectors[i].cipher,
desc->enc_testvectors[i].data_size};
chunk_t encrypted = chunk_empty;
chunk_t decrypted = chunk_empty;
chunk_t iv;
crypter = lib->crypto->create_crypter(lib->crypto, enc_alg, key.len);
if (crypter == NULL)
{
plog(" %s encryption function not available",
enum_name(&oakley_enc_names, desc->algo_id));
return FALSE;
}
iv = chunk_create((u_char*)desc->enc_testvectors[i].iv,
crypter->get_block_size(crypter));
crypter->set_key(crypter, key);
crypter->decrypt(crypter, cipher, iv, &decrypted);
result = chunk_equals(decrypted, plain);
crypter->encrypt(crypter, plain, iv, &encrypted);
result &= chunk_equals(encrypted, cipher);
DBG(DBG_CRYPT,
DBG_log(" enc testvector %d: %s", i, result ? "ok":"failed")
)
encrypt_results &= result;
crypter->destroy(crypter);
free(encrypted.ptr);
free(decrypted.ptr);
}
plog(" %s encryption self-test %s",
enum_name(&oakley_enc_names, desc->algo_id),
encrypt_results ? "passed":"failed");
}
return encrypt_results;
}
/**
* Apply a suite of testvectors to a hash algorithm
*/
static bool
ike_hash_test(const struct hash_desc *desc)
static bool ike_hash_test(const struct hash_desc *desc)
{
bool hash_results = TRUE;
bool hmac_results = TRUE;
@ -513,23 +567,22 @@ ike_hash_test(const struct hash_desc *desc)
return hash_results && hmac_results;
}
/*
/**
* Apply test vectors to registered encryption and hash algorithms
*/
bool
ike_alg_test(void)
bool ike_alg_test(void)
{
bool all_results = TRUE;
struct ike_alg *a;
plog("Testing registered IKE encryption algorithms:");
for (a = ike_alg_base[IKE_ALG_ENCRYPT]; a != NULL; a = a->algo_next)
{
plog(" %s self-test not available", enum_name(&oakley_enc_names, a->algo_id));
}
struct encrypt_desc *desc = (struct encrypt_desc*)a;
plog("Testing registered IKE hash algorithms:");
all_results &= ike_encrypt_test(desc);
}
for (a = ike_alg_base[IKE_ALG_HASH]; a != NULL; a = a->algo_next)
{
@ -545,12 +598,11 @@ ike_alg_test(void)
return all_results;
}
/*
/**
* ML: make F_STRICT logic consider enc,hash/auth,modp algorithms
*/
bool
ike_alg_ok_final(u_int ealg, u_int key_len, u_int aalg, u_int group
, struct alg_info_ike *alg_info_ike)
bool ike_alg_ok_final(u_int ealg, u_int key_len, u_int aalg, u_int group,
struct alg_info_ike *alg_info_ike)
{
/*
* simple test to discard low key_len, will accept it only

12
src/pluto/ike_alg.h
View File

@ -23,6 +23,17 @@ struct ike_alg {
struct ike_alg *algo_next;
};
typedef struct enc_testvector enc_testvector_t;
struct enc_testvector {
const size_t key_size;
const u_char *key;
const u_char *iv;
const size_t data_size;
const u_char *plain;
const u_char *cipher;
};
struct encrypt_desc {
u_int16_t algo_type;
u_int16_t algo_id;
@ -34,6 +45,7 @@ struct encrypt_desc {
u_int keymaxlen;
u_int keyminlen;
void (*do_crypt)(u_int8_t *dat, size_t datasize, u_int8_t *key, size_t key_size, u_int8_t *iv, bool enc);
const enc_testvector_t *enc_testvectors;
};
typedef struct hash_testvector hash_testvector_t;