| /external/dropbear/libtomcrypt/src/prngs/ |
| sprng.c | 15 Secure PRNG, Tom St Denis
18 /* A secure PRNG using the RNG functions. Basically this is a
19 * wrapper that allows you to use a secure RNG as a PRNG
39 Start the PRNG
40 @param prng [out] The PRNG state to initialize
43 int sprng_start(prng_state *prng)
49 Add entropy to the PRNG state
52 @param prng PRNG state to updat
[all...] |
| yarrow.c | 15 Yarrow PRNG, Tom St Denis
34 Start the PRNG
35 @param prng [out] The PRNG state to initialize
38 int yarrow_start(prng_state *prng)
42 LTC_ARGCHK(prng != NULL);
47 prng->yarrow.cipher = register_cipher(&rijndael_enc_desc);
49 prng->yarrow.cipher = register_cipher(&aes_enc_desc);
51 prng->yarrow.cipher = register_cipher(&rijndael_desc);
53 prng->yarrow.cipher = register_cipher(&aes_desc)
[all...] |
| fortuna.c | 15 Fortuna PRNG, Tom St Denis
53 static void fortuna_update_iv(prng_state *prng)
58 IV = prng->fortuna.IV;
65 /* reseed the PRNG */
66 static int fortuna_reseed(prng_state *prng)
72 ++prng->fortuna.reset_cnt;
76 if ((err = sha256_process(&md, prng->fortuna.K, 32)) != CRYPT_OK) {
82 if (x == 0 || ((prng->fortuna.reset_cnt >> (x-1)) & 1) == 0) {
84 if ((err = sha256_done(&prng->fortuna.pool[x], tmp)) != CRYPT_OK) {
94 if ((err = sha256_init(&prng->fortuna.pool[x])) != CRYPT_OK)
[all...] |
| rc4.c | 15 RC4 PRNG, Tom St Denis
34 Start the PRNG
35 @param prng [out] The PRNG state to initialize
38 int rc4_start(prng_state *prng)
40 LTC_ARGCHK(prng != NULL);
43 prng->rc4.x = 0;
49 Add entropy to the PRNG state
52 @param prng PRNG state to updat
[all...] |
| rng_make_prng.c | 15 portable way to get secure random bits to feed a PRNG (Tom St Denis)
19 Create a PRNG from a RNG
21 @param wprng Index of which PRNG to setup
22 @param prng [out] PRNG state to initialize
26 int rng_make_prng(int bits, int wprng, prng_state *prng,
32 LTC_ARGCHK(prng != NULL);
43 if ((err = prng_descriptor[wprng].start(prng)) != CRYPT_OK) {
52 if ((err = prng_descriptor[wprng].add_entropy(buf, (unsigned long)bits, prng)) != CRYPT_OK) {
56 if ((err = prng_descriptor[wprng].ready(prng)) != CRYPT_OK)
[all...] |
| sober128.c | 105 Start the PRNG
106 @param prng [out] The PRNG state to initialize
109 int sober128_start(prng_state *prng)
114 LTC_ARGCHK(prng != NULL);
116 c = &(prng->sober128);
201 Add entropy to the PRNG state
204 @param prng PRNG state to update
207 int sober128_add_entropy(const unsigned char *in, unsigned long inlen, prng_state *prng)
[all...] |
| /external/dropbear/libtomcrypt/src/headers/ |
| tomcrypt_prng.h | 1 /* ---- PRNG Stuff ---- */
66 /** PRNG descriptor */
68 /** Name of the PRNG */
72 /** Start a PRNG state
73 @param prng [out] The state to initialize
76 int (*start)(prng_state *prng);
77 /** Add entropy to the PRNG
80 @param prng The PRNG state
83 int (*add_entropy)(const unsigned char *in, unsigned long inlen, prng_state *prng);
[all...] |
| tomcrypt.h | 42 CRYPT_INVALID_PRNGSIZE, /* Invalid number of bits for a PRNG */
43 CRYPT_ERROR_READPRNG, /* Could not read enough from PRNG */
47 CRYPT_INVALID_PRNG, /* Invalid PRNG specified */
|
| /external/dropbear/libtomcrypt/src/misc/crypt/ |
| crypt_register_prng.c | 15 Register a PRNG, Tom St Denis
19 Register a PRNG with the descriptor table
20 @param prng The PRNG you wish to register
23 int register_prng(const struct ltc_prng_descriptor *prng)
27 LTC_ARGCHK(prng != NULL);
32 if (XMEMCMP(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor)) == 0) {
41 XMEMCPY(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor));
|
| crypt_unregister_prng.c | 15 Unregister a PRNG, Tom St Denis
19 Unregister a PRNG from the descriptor table
20 @param prng The PRNG descriptor to remove
23 int unregister_prng(const struct ltc_prng_descriptor *prng)
27 LTC_ARGCHK(prng != NULL);
32 if (XMEMCMP(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor)) != 0) {
|
| crypt_prng_is_valid.c | 15 Determine if PRNG is valid, Tom St Denis
19 Test if a PRNG index is valid
20 @param idx The index of the PRNG to search for
|
| crypt_find_prng.c | 15 Find a PRNG, Tom St Denis
19 Find a registered PRNG by name
20 @param name The name of the PRNG to look for
|
| /external/srtp/crypto/include/ |
| prng.h | 2 * prng.h
20 * x917_prng is an ANSI X9.17-like AES-based PRNG
38 * ctr_prng is an AES-CTR based PRNG
|
| /external/dropbear/libtomcrypt/demos/ |
| small.c | 1 /* small demo app that just includes a cipher/hash/prng */
|
| /external/dropbear/libtomcrypt/src/pk/pkcs1/ |
| pkcs_1_v1_5_encode.c | 26 * \param prng An active PRNG state (only for LTC_PKCS_1_EME)
27 * \param prng_idx The index of the PRNG desired (only for LTC_PKCS_1_EME)
37 prng_state *prng,
52 if (block_type == LTC_PKCS_1_EME) { /* encryption padding, we need a valid PRNG */
77 if (prng_descriptor[prng_idx].read(ps, ps_len, prng) != ps_len) {
85 if (prng_descriptor[prng_idx].read(&ps[i], 1, prng) != 1) {
|
| /external/dropbear/libtomcrypt/src/pk/rsa/ |
| rsa_encrypt_key.c | 28 @param prng An active PRNG
29 @param prng_idx The index of the desired prng
38 prng_state *prng, int prng_idx, int hash_idx, int padding, rsa_key *key)
54 /* valid prng? */
80 lparamlen, modulus_bitlen, prng, prng_idx, hash_idx,
88 modulus_bitlen, prng, prng_idx,
|
| rsa_sign_hash.c | 27 @param prng An active PRNG state
28 @param prng_idx The index of the PRNG desired
37 prng_state *prng, int prng_idx,
55 /* valid prng and hash ? */
77 if ((err = pkcs_1_pss_encode(in, inlen, saltlen, prng, prng_idx,
|
| /external/dropbear/libtomcrypt/notes/ |
| tech0001.txt | 8 This tech note explains a relatively simple way to gather entropy for a PRNG (Yarrow in this case) in embedded systems
12 deterministic state of the PRNG is not known or predetermined with respect to an attacker.
17 First we shall begin by taking an overview of how the Yarrow PRNG works within libtomcrypt. At the heart of all
18 PRNGs is the "prng_state" data type. This is a union of structures that hold the PRNG state for the various prngs. The
29 At this point the PRNG is ready to accept fresh entropy which is added with
31 int yarrow_add_entropy(const unsigned char *buf, unsigned long len, prng_state *prng)
33 This function is **NOT** thread safe which will come under consideration later. To add entropy to our PRNG we must
63 int yarrow_ready(prng_state *prng)
65 Now the PRNG is ready to read via the
67 unsigned long yarrow_read(unsigned char *buf, unsigned long len, prng_state *prng)
[all...] |
| tech0004.txt | 21 Simply dump bits into the PRNG via yarrow_add_entropy() and call yarrow_ready() when you want to
22 put them to use. This PRNG while simple is not entirely safe. An attacker who learns the state
23 of the pool and can control future events can control the PRNG. This requires an active attacker but
41 Here's the main catch though. When the PRNG must be reseeded [so that you can extract bits from it] only
50 compromised and the PRNG will still eventually recover. The value FORTUNA_WD is the "WatchDog" counter.
52 means after 10 calls the PRNG will reseed itself.
59 Fortuna is really meant for a kernel-level PRNG. The more sources [and often] you feed into it the
66 SOBER-128 is actually a stream cipher but like most ciphers can easily be modelled in the context of a PRNG.
67 This PRNG is extremely fast [4 cycles/byte on a P4] and was designed by a well known cryptographer [Greg Rose].
70 required. In such a sense it isn't a "system PRNG" but useful short term purposes. In particula
[all...] |
| /external/dropbear/libtomcrypt/src/pk/katja/ |
| katja_encrypt_key.c | 28 @param prng An active PRNG
29 @param prng_idx The index of the desired prng
37 prng_state *prng, int prng_idx, int hash_idx, katja_key *key)
47 /* valid prng and hash ? */
74 lparamlen, modulus_bitlen, prng, prng_idx, hash_idx,
|
| katja_make_key.c | 22 @param prng An active PRNG state
23 @param wprng The index of the PRNG desired
28 int katja_make_key(prng_state *prng, int wprng, int size, katja_key *key)
52 if ((err = rand_prime(q, -size, prng, wprng)) != CRYPT_OK) { goto done; }
57 if ((err = rand_prime(p, size+1, prng, wprng)) != CRYPT_OK) { goto done; }
|
| /external/dropbear/libtomcrypt/src/pk/ecc/ |
| ecc_make_key.c | 28 @param prng An active PRNG state
29 @param wprng The index of the PRNG you wish to use
34 int ecc_make_key(prng_state *prng, int wprng, int keysize, ecc_key *key)
45 err = ecc_make_key_ex(prng, wprng, key, <c_ecc_sets[x]);
50 int ecc_make_key_ex(prng_state *prng, int wprng, ecc_key *key, const ltc_ecc_set_type *dp)
62 /* good prng? */
79 if (prng_descriptor[wprng].read(buf, (unsigned long)keysize, prng) != (unsigned long)keysize) {
|
| /external/dropbear/libtomcrypt/src/pk/dsa/ |
| dsa_sign_hash.c | 26 @param prng An active PRNG state
27 @param wprng The index of the PRNG desired
33 prng_state *prng, int wprng, dsa_key *key)
68 if (prng_descriptor[wprng].read(buf, key->qord, prng) != (unsigned long)key->qord) {
117 @param prng An active PRNG state
118 @param wprng The index of the PRNG desired
124 prng_state *prng, int wprng, dsa_key *key)
138 if ((err = dsa_sign_hash_raw(in, inlen, r, s, prng, wprng, key)) != CRYPT_OK)
[all...] |
| /external/dropbear/libtomcrypt/src/math/ |
| rand_prime.c | 20 int rand_prime(void *N, long len, prng_state *prng, int wprng)
40 /* valid PRNG? Better be! */
53 if (prng_descriptor[wprng].read(buf, len, prng) != (unsigned long)len) {
|
| /external/dropbear/libtomcrypt/src/misc/ |
| error_to_string.c | 32 "Invalid number of bits for a PRNG.",
33 "Error reading the PRNG.",
37 "Invalid PRNG specified.",
|
