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https://github.com/trezor/trezor-firmware.git
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split pbkdf2 into pbkdf2_hmac_sha256 and pbkdf2_hmac_sha512
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parent
ad8e618ed2
commit
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2
bip39.c
2
bip39.c
@ -152,7 +152,7 @@ void mnemonic_to_seed(const char *mnemonic, const char *passphrase, uint8_t seed
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memcpy(salt, "mnemonic", 8);
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memcpy(salt + 8, passphrase, saltlen);
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saltlen += 8;
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pbkdf2((const uint8_t *)mnemonic, strlen(mnemonic), salt, saltlen, BIP39_PBKDF2_ROUNDS, seed, 512 / 8, progress_callback);
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pbkdf2_hmac_sha512((const uint8_t *)mnemonic, strlen(mnemonic), salt, saltlen, BIP39_PBKDF2_ROUNDS, seed, 512 / 8, progress_callback);
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}
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const char **mnemonic_wordlist(void)
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47
pbkdf2.c
47
pbkdf2.c
@ -25,11 +25,9 @@
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#include "pbkdf2.h"
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#include "hmac.h"
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#define HMACFUNC hmac_sha512
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#define HMACLEN (512/8)
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void pbkdf2(const uint8_t *pass, int passlen, uint8_t *salt, int saltlen, uint32_t iterations, uint8_t *key, int keylen, void (*progress_callback)(uint32_t current, uint32_t total))
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void pbkdf2_hmac_sha256(const uint8_t *pass, int passlen, uint8_t *salt, int saltlen, uint32_t iterations, uint8_t *key, int keylen, void (*progress_callback)(uint32_t current, uint32_t total))
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{
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const uint32_t HMACLEN = 256/8;
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uint32_t i, j, k;
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uint8_t f[HMACLEN], g[HMACLEN];
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uint32_t blocks = keylen / HMACLEN;
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@ -41,18 +39,51 @@ void pbkdf2(const uint8_t *pass, int passlen, uint8_t *salt, int saltlen, uint32
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salt[saltlen + 1] = (i >> 16) & 0xFF;
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salt[saltlen + 2] = (i >> 8) & 0xFF;
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salt[saltlen + 3] = i & 0xFF;
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HMACFUNC(pass, passlen, salt, saltlen + 4, g);
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hmac_sha256(pass, passlen, salt, saltlen + 4, g);
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memcpy(f, g, HMACLEN);
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for (j = 1; j < iterations; j++) {
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HMACFUNC(pass, passlen, g, HMACLEN, g);
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hmac_sha256(pass, passlen, g, HMACLEN, g);
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for (k = 0; k < HMACLEN; k++) {
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f[k] ^= g[k];
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}
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if (progress_callback && j % 256 == 255) {
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if (progress_callback && (j % 256 == 255)) {
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progress_callback(j + 1, iterations);
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}
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}
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if (i == blocks - 1 && (keylen & (HMACLEN - 1))) {
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if (i == blocks && (keylen & (HMACLEN - 1))) {
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memcpy(key + HMACLEN * (i - 1), f, keylen & (HMACLEN - 1));
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} else {
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memcpy(key + HMACLEN * (i - 1), f, HMACLEN);
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}
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}
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}
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void pbkdf2_hmac_sha512(const uint8_t *pass, int passlen, uint8_t *salt, int saltlen, uint32_t iterations, uint8_t *key, int keylen, void (*progress_callback)(uint32_t current, uint32_t total))
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{
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const uint32_t HMACLEN = 512/8;
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uint32_t i, j, k;
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uint8_t f[HMACLEN], g[HMACLEN];
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uint32_t blocks = keylen / HMACLEN;
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if (keylen & (HMACLEN - 1)) {
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blocks++;
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}
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for (i = 1; i <= blocks; i++) {
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salt[saltlen ] = (i >> 24) & 0xFF;
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salt[saltlen + 1] = (i >> 16) & 0xFF;
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salt[saltlen + 2] = (i >> 8) & 0xFF;
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salt[saltlen + 3] = i & 0xFF;
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hmac_sha512(pass, passlen, salt, saltlen + 4, g);
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memcpy(f, g, HMACLEN);
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for (j = 1; j < iterations; j++) {
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hmac_sha512(pass, passlen, g, HMACLEN, g);
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for (k = 0; k < HMACLEN; k++) {
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f[k] ^= g[k];
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}
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if (progress_callback && (j % 256 == 255)) {
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progress_callback(j + 1, iterations);
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}
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}
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if (i == blocks && (keylen & (HMACLEN - 1))) {
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memcpy(key + HMACLEN * (i - 1), f, keylen & (HMACLEN - 1));
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} else {
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memcpy(key + HMACLEN * (i - 1), f, HMACLEN);
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4
pbkdf2.h
4
pbkdf2.h
@ -27,6 +27,8 @@
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#include <stdint.h>
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// salt needs to have 4 extra bytes available beyond saltlen
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void pbkdf2(const uint8_t *pass, int passlen, uint8_t *salt, int saltlen, uint32_t iterations, uint8_t *key, int keylen, void (*progress_callback)(uint32_t current, uint32_t total));
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void pbkdf2_hmac_sha256(const uint8_t *pass, int passlen, uint8_t *salt, int saltlen, uint32_t iterations, uint8_t *key, int keylen, void (*progress_callback)(uint32_t current, uint32_t total));
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// salt needs to have 4 extra bytes available beyond saltlen
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void pbkdf2_hmac_sha512(const uint8_t *pass, int passlen, uint8_t *salt, int saltlen, uint32_t iterations, uint8_t *key, int keylen, void (*progress_callback)(uint32_t current, uint32_t total));
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#endif
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40
tests.c
40
tests.c
@ -587,25 +587,48 @@ START_TEST(test_aes)
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}
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END_TEST
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// test vectors from http://stackoverflow.com/questions/15593184/pbkdf2-hmac-sha-512-test-vectors
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START_TEST(test_pbkdf2)
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// test vectors from https://stackoverflow.com/questions/5130513/pbkdf2-hmac-sha2-test-vectors
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START_TEST(test_pbkdf2_hmac_sha256)
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{
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uint8_t k[64], s[64];
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uint8_t k[40], s[40];
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strcpy((char *)s, "salt");
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pbkdf2((uint8_t *)"password", 8, s, 4, 1, k, 64, 0);
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pbkdf2_hmac_sha256((uint8_t *)"password", 8, s, 4, 1, k, 32, 0);
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ck_assert_mem_eq(k, fromhex("120fb6cffcf8b32c43e7225256c4f837a86548c92ccc35480805987cb70be17b"), 32);
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strcpy((char *)s, "salt");
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pbkdf2_hmac_sha256((uint8_t *)"password", 8, s, 4, 2, k, 32, 0);
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ck_assert_mem_eq(k, fromhex("ae4d0c95af6b46d32d0adff928f06dd02a303f8ef3c251dfd6e2d85a95474c43"), 32);
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strcpy((char *)s, "salt");
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pbkdf2_hmac_sha256((uint8_t *)"password", 8, s, 4, 4096, k, 32, 0);
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ck_assert_mem_eq(k, fromhex("c5e478d59288c841aa530db6845c4c8d962893a001ce4e11a4963873aa98134a"), 32);
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strcpy((char *)s, "saltSALTsaltSALTsaltSALTsaltSALTsalt");
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pbkdf2_hmac_sha256((uint8_t *)"passwordPASSWORDpassword", 3*8, s, 9*4, 4096, k, 64, 0);
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ck_assert_mem_eq(k, fromhex("348c89dbcbd32b2f32d814b8116e84cf2b17347ebc1800181c4e2a1fb8dd53e1c635518c7dac47e9"), 40);
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}
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END_TEST
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// test vectors from http://stackoverflow.com/questions/15593184/pbkdf2-hmac-sha-512-test-vectors
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START_TEST(test_pbkdf2_hmac_sha512)
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{
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uint8_t k[64], s[40];
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strcpy((char *)s, "salt");
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pbkdf2_hmac_sha512((uint8_t *)"password", 8, s, 4, 1, k, 64, 0);
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ck_assert_mem_eq(k, fromhex("867f70cf1ade02cff3752599a3a53dc4af34c7a669815ae5d513554e1c8cf252c02d470a285a0501bad999bfe943c08f050235d7d68b1da55e63f73b60a57fce"), 64);
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strcpy((char *)s, "salt");
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pbkdf2((uint8_t *)"password", 8, s, 4, 2, k, 64, 0);
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pbkdf2_hmac_sha512((uint8_t *)"password", 8, s, 4, 2, k, 64, 0);
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ck_assert_mem_eq(k, fromhex("e1d9c16aa681708a45f5c7c4e215ceb66e011a2e9f0040713f18aefdb866d53cf76cab2868a39b9f7840edce4fef5a82be67335c77a6068e04112754f27ccf4e"), 64);
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strcpy((char *)s, "salt");
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pbkdf2((uint8_t *)"password", 8, s, 4, 4096, k, 64, 0);
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pbkdf2_hmac_sha512((uint8_t *)"password", 8, s, 4, 4096, k, 64, 0);
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ck_assert_mem_eq(k, fromhex("d197b1b33db0143e018b12f3d1d1479e6cdebdcc97c5c0f87f6902e072f457b5143f30602641b3d55cd335988cb36b84376060ecd532e039b742a239434af2d5"), 64);
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strcpy((char *)s, "saltSALTsaltSALTsaltSALTsaltSALTsalt");
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pbkdf2((uint8_t *)"passwordPASSWORDpassword", 3*8, s, 9*4, 4096, k, 64, 0);
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pbkdf2_hmac_sha512((uint8_t *)"passwordPASSWORDpassword", 3*8, s, 9*4, 4096, k, 64, 0);
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ck_assert_mem_eq(k, fromhex("8c0511f4c6e597c6ac6315d8f0362e225f3c501495ba23b868c005174dc4ee71115b59f9e60cd9532fa33e0f75aefe30225c583a186cd82bd4daea9724a3d3b8"), 64);
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}
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END_TEST
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@ -1074,7 +1097,8 @@ Suite *test_suite(void)
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suite_add_tcase(s, tc);
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tc = tcase_create("pbkdf2");
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tcase_add_test(tc, test_pbkdf2);
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tcase_add_test(tc, test_pbkdf2_hmac_sha256);
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tcase_add_test(tc, test_pbkdf2_hmac_sha512);
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suite_add_tcase(s, tc);
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tc = tcase_create("bip39");
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