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📄 aes-cbc.c(1.93 KB)
📄 aes-ccm.c(4.92 KB)
📄 aes-ctr.c(1.64 KB)
📄 aes-eax.c(3.24 KB)
📄 aes-encblock.c(704 B)
📄 aes-gcm.c(6.47 KB)
📄 aes-internal-dec.c(3.64 KB)
📄 aes-internal-enc.c(2.66 KB)
📄 aes-internal.c(41.23 KB)
📄 aes-omac1.c(4.46 KB)
📄 aes-siv.c(4.06 KB)
📄 aes-unwrap.c(1.78 KB)
📄 aes-wrap.c(1.62 KB)
📄 aes.h(548 B)
📄 aes_i.h(4.16 KB)
📄 aes_siv.h(565 B)
📄 aes_wrap.h(2.91 KB)
📄 crypto.h(28.61 KB)
📄 crypto_gnutls.c(11.42 KB)
📄 crypto_internal-cipher.c(5.08 KB)
📄 crypto_internal-modexp.c(2.95 KB)
📄 crypto_internal-rsa.c(2.81 KB)
📄 crypto_internal.c(6.84 KB)
📄 crypto_libtomcrypt.c(15.07 KB)
📄 crypto_linux.c(21.77 KB)
📄 crypto_module_tests.c(61.19 KB)
📄 crypto_nettle.c(9.7 KB)
📄 crypto_none.c(461 B)
📄 crypto_openssl.c(44.34 KB)
📄 crypto_wolfssl.c(33.91 KB)
📄 des-internal.c(14.83 KB)
📄 des_i.h(709 B)
📄 dh_group5.c(806 B)
📄 dh_group5.h(556 B)
📄 dh_groups.c(54.26 KB)
📄 dh_groups.h(692 B)
📄 fips_prf_internal.c(1.37 KB)
📄 fips_prf_openssl.c(2.05 KB)
📄 fips_prf_wolfssl.c(1.75 KB)
📄 md4-internal.c(7.91 KB)
📄 md5-internal.c(8.79 KB)
📄 md5.c(2.64 KB)
📄 md5.h(505 B)
📄 md5_i.h(516 B)
📄 milenage.c(9.5 KB)
📄 milenage.h(1019 B)
📄 ms_funcs.c(16.16 KB)
📄 ms_funcs.h(2.41 KB)
📄 random.c(11.66 KB)
📄 random.h(855 B)
📄 rc4.c(1009 B)
📄 sha1-internal.c(8.93 KB)
📄 sha1-pbkdf2.c(2.34 KB)
📄 sha1-prf.c(1.58 KB)
📄 sha1-tlsprf.c(2.69 KB)
📄 sha1-tprf.c(1.75 KB)
📄 sha1.c(2.69 KB)
📄 sha1.h(1.03 KB)
📄 sha1_i.h(590 B)
📄 sha256-internal.c(6 KB)
📄 sha256-kdf.c(2.08 KB)
📄 sha256-prf.c(2.84 KB)
📄 sha256-tlsprf.c(1.81 KB)
📄 sha256.c(2.64 KB)
📄 sha256.h(1.07 KB)
📄 sha256_i.h(584 B)
📄 sha384-internal.c(2.17 KB)
📄 sha384-kdf.c(2.08 KB)
📄 sha384-prf.c(2.85 KB)
📄 sha384.c(2.63 KB)
📄 sha384.h(949 B)
📄 sha384_i.h(573 B)
📄 sha512-internal.c(7.71 KB)
📄 sha512-kdf.c(2.08 KB)
📄 sha512-prf.c(2.85 KB)
📄 sha512.c(2.63 KB)
📄 sha512.h(949 B)
📄 sha512_i.h(591 B)
📄 tls.h(23.71 KB)
📄 tls_gnutls.c(44.97 KB)
📄 tls_internal.c(18.93 KB)
📄 tls_none.c(3.9 KB)
📄 tls_openssl.c(137.99 KB)
📄 tls_openssl.h(477 B)
📄 tls_openssl_ocsp.c(20.52 KB)
📄 tls_wolfssl.c(51.88 KB)

Editing: sha1-pbkdf2.c

/*
 * SHA1-based key derivation function (PBKDF2) for IEEE 802.11i
 * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "includes.h"

#include "common.h"
#include "sha1.h"

static int pbkdf2_sha1_f(const char *passphrase, const u8 *ssid,
			 size_t ssid_len, int iterations, unsigned int count,
			 u8 *digest)
{
	unsigned char tmp[SHA1_MAC_LEN], tmp2[SHA1_MAC_LEN];
	int i, j;
	unsigned char count_buf[4];
	const u8 *addr[2];
	size_t len[2];
	size_t passphrase_len = os_strlen(passphrase);

addr[0] = ssid;
	len[0] = ssid_len;
	addr[1] = count_buf;
	len[1] = 4;

/* F(P, S, c, i) = U1 xor U2 xor ... Uc
	 * U1 = PRF(P, S || i)
	 * U2 = PRF(P, U1)
	 * Uc = PRF(P, Uc-1)
	 */

count_buf[0] = (count >> 24) & 0xff;
	count_buf[1] = (count >> 16) & 0xff;
	count_buf[2] = (count >> 8) & 0xff;
	count_buf[3] = count & 0xff;
	if (hmac_sha1_vector((u8 *) passphrase, passphrase_len, 2, addr, len,
			     tmp))
		return -1;
	os_memcpy(digest, tmp, SHA1_MAC_LEN);

for (i = 1; i < iterations; i++) {
		if (hmac_sha1((u8 *) passphrase, passphrase_len, tmp,
			      SHA1_MAC_LEN, tmp2))
			return -1;
		os_memcpy(tmp, tmp2, SHA1_MAC_LEN);
		for (j = 0; j < SHA1_MAC_LEN; j++)
			digest[j] ^= tmp2[j];
	}

return 0;
}

/**
 * pbkdf2_sha1 - SHA1-based key derivation function (PBKDF2) for IEEE 802.11i
 * @passphrase: ASCII passphrase
 * @ssid: SSID
 * @ssid_len: SSID length in bytes
 * @iterations: Number of iterations to run
 * @buf: Buffer for the generated key
 * @buflen: Length of the buffer in bytes
 * Returns: 0 on success, -1 of failure
 *
 * This function is used to derive PSK for WPA-PSK. For this protocol,
 * iterations is set to 4096 and buflen to 32. This function is described in
 * IEEE Std 802.11-2004, Clause H.4. The main construction is from PKCS#5 v2.0.
 */
int pbkdf2_sha1(const char *passphrase, const u8 *ssid, size_t ssid_len,
		int iterations, u8 *buf, size_t buflen)
{
	unsigned int count = 0;
	unsigned char *pos = buf;
	size_t left = buflen, plen;
	unsigned char digest[SHA1_MAC_LEN];

while (left > 0) {
		count++;
		if (pbkdf2_sha1_f(passphrase, ssid, ssid_len, iterations,
				  count, digest))
			return -1;
		plen = left > SHA1_MAC_LEN ? SHA1_MAC_LEN : left;
		os_memcpy(pos, digest, plen);
		pos += plen;
		left -= plen;
	}

return 0;
}

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Editing: sha1-pbkdf2.c

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