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usr / src / contrib / wpa / src / crypto /

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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-tlsprf.c

/*
 * TLS PRF (SHA1 + MD5)
 * 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"
#include "md5.h"

/**
 * tls_prf_sha1_md5 - Pseudo-Random Function for TLS (TLS-PRF, RFC 2246)
 * @secret: Key for PRF
 * @secret_len: Length of the key in bytes
 * @label: A unique label for each purpose of the PRF
 * @seed: Seed value to bind into the key
 * @seed_len: Length of the seed
 * @out: Buffer for the generated pseudo-random key
 * @outlen: Number of bytes of key to generate
 * Returns: 0 on success, -1 on failure.
 *
 * This function is used to derive new, cryptographically separate keys from a
 * given key in TLS. This PRF is defined in RFC 2246, Chapter 5.
 */
int tls_prf_sha1_md5(const u8 *secret, size_t secret_len, const char *label,
		     const u8 *seed, size_t seed_len, u8 *out, size_t outlen)
{
	size_t L_S1, L_S2, i;
	const u8 *S1, *S2;
	u8 A_MD5[MD5_MAC_LEN], A_SHA1[SHA1_MAC_LEN];
	u8 P_MD5[MD5_MAC_LEN], P_SHA1[SHA1_MAC_LEN];
	int MD5_pos, SHA1_pos;
	const u8 *MD5_addr[3];
	size_t MD5_len[3];
	const unsigned char *SHA1_addr[3];
	size_t SHA1_len[3];

MD5_addr[0] = A_MD5;
	MD5_len[0] = MD5_MAC_LEN;
	MD5_addr[1] = (unsigned char *) label;
	MD5_len[1] = os_strlen(label);
	MD5_addr[2] = seed;
	MD5_len[2] = seed_len;

SHA1_addr[0] = A_SHA1;
	SHA1_len[0] = SHA1_MAC_LEN;
	SHA1_addr[1] = (unsigned char *) label;
	SHA1_len[1] = os_strlen(label);
	SHA1_addr[2] = seed;
	SHA1_len[2] = seed_len;

/* RFC 2246, Chapter 5
	 * A(0) = seed, A(i) = HMAC(secret, A(i-1))
	 * P_hash = HMAC(secret, A(1) + seed) + HMAC(secret, A(2) + seed) + ..
	 * PRF = P_MD5(S1, label + seed) XOR P_SHA-1(S2, label + seed)
	 */

L_S1 = L_S2 = (secret_len + 1) / 2;
	S1 = secret;
	S2 = secret + L_S1;
	if (secret_len & 1) {
		/* The last byte of S1 will be shared with S2 */
		S2--;
	}

hmac_md5_vector(S1, L_S1, 2, &MD5_addr[1], &MD5_len[1], A_MD5);
	hmac_sha1_vector(S2, L_S2, 2, &SHA1_addr[1], &SHA1_len[1], A_SHA1);

MD5_pos = MD5_MAC_LEN;
	SHA1_pos = SHA1_MAC_LEN;
	for (i = 0; i < outlen; i++) {
		if (MD5_pos == MD5_MAC_LEN) {
			hmac_md5_vector(S1, L_S1, 3, MD5_addr, MD5_len, P_MD5);
			MD5_pos = 0;
			hmac_md5(S1, L_S1, A_MD5, MD5_MAC_LEN, A_MD5);
		}
		if (SHA1_pos == SHA1_MAC_LEN) {
			hmac_sha1_vector(S2, L_S2, 3, SHA1_addr, SHA1_len,
					 P_SHA1);
			SHA1_pos = 0;
			hmac_sha1(S2, L_S2, A_SHA1, SHA1_MAC_LEN, A_SHA1);
		}

out[i] = P_MD5[MD5_pos] ^ P_SHA1[SHA1_pos];

MD5_pos++;
		SHA1_pos++;
	}

forced_memzero(A_MD5, MD5_MAC_LEN);
	forced_memzero(P_MD5, MD5_MAC_LEN);
	forced_memzero(A_SHA1, SHA1_MAC_LEN);
	forced_memzero(P_SHA1, SHA1_MAC_LEN);

return 0;
}

003 File Manager

Editing: sha1-tlsprf.c

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