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Upgrade openssl from 1.1.0e to 1.1.1b, with source code. 4.0.78

This commit is contained in:
winlin 2021-03-01 20:47:57 +08:00
parent 8f1c992379
commit 96dbd7bced
1476 changed files with 616554 additions and 4 deletions

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LIBS=../../libcrypto
SOURCE[../../libcrypto]=\
tls1_prf.c kdf_err.c hkdf.c scrypt.c

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/*
* Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdlib.h>
#include <string.h>
#include <openssl/hmac.h>
#include <openssl/kdf.h>
#include <openssl/evp.h>
#include "internal/cryptlib.h"
#include "internal/evp_int.h"
#define HKDF_MAXBUF 1024
static unsigned char *HKDF(const EVP_MD *evp_md,
const unsigned char *salt, size_t salt_len,
const unsigned char *key, size_t key_len,
const unsigned char *info, size_t info_len,
unsigned char *okm, size_t okm_len);
static unsigned char *HKDF_Extract(const EVP_MD *evp_md,
const unsigned char *salt, size_t salt_len,
const unsigned char *key, size_t key_len,
unsigned char *prk, size_t *prk_len);
static unsigned char *HKDF_Expand(const EVP_MD *evp_md,
const unsigned char *prk, size_t prk_len,
const unsigned char *info, size_t info_len,
unsigned char *okm, size_t okm_len);
typedef struct {
int mode;
const EVP_MD *md;
unsigned char *salt;
size_t salt_len;
unsigned char *key;
size_t key_len;
unsigned char info[HKDF_MAXBUF];
size_t info_len;
} HKDF_PKEY_CTX;
static int pkey_hkdf_init(EVP_PKEY_CTX *ctx)
{
HKDF_PKEY_CTX *kctx;
if ((kctx = OPENSSL_zalloc(sizeof(*kctx))) == NULL) {
KDFerr(KDF_F_PKEY_HKDF_INIT, ERR_R_MALLOC_FAILURE);
return 0;
}
ctx->data = kctx;
return 1;
}
static void pkey_hkdf_cleanup(EVP_PKEY_CTX *ctx)
{
HKDF_PKEY_CTX *kctx = ctx->data;
OPENSSL_clear_free(kctx->salt, kctx->salt_len);
OPENSSL_clear_free(kctx->key, kctx->key_len);
OPENSSL_cleanse(kctx->info, kctx->info_len);
OPENSSL_free(kctx);
}
static int pkey_hkdf_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
{
HKDF_PKEY_CTX *kctx = ctx->data;
switch (type) {
case EVP_PKEY_CTRL_HKDF_MD:
if (p2 == NULL)
return 0;
kctx->md = p2;
return 1;
case EVP_PKEY_CTRL_HKDF_MODE:
kctx->mode = p1;
return 1;
case EVP_PKEY_CTRL_HKDF_SALT:
if (p1 == 0 || p2 == NULL)
return 1;
if (p1 < 0)
return 0;
if (kctx->salt != NULL)
OPENSSL_clear_free(kctx->salt, kctx->salt_len);
kctx->salt = OPENSSL_memdup(p2, p1);
if (kctx->salt == NULL)
return 0;
kctx->salt_len = p1;
return 1;
case EVP_PKEY_CTRL_HKDF_KEY:
if (p1 < 0)
return 0;
if (kctx->key != NULL)
OPENSSL_clear_free(kctx->key, kctx->key_len);
kctx->key = OPENSSL_memdup(p2, p1);
if (kctx->key == NULL)
return 0;
kctx->key_len = p1;
return 1;
case EVP_PKEY_CTRL_HKDF_INFO:
if (p1 == 0 || p2 == NULL)
return 1;
if (p1 < 0 || p1 > (int)(HKDF_MAXBUF - kctx->info_len))
return 0;
memcpy(kctx->info + kctx->info_len, p2, p1);
kctx->info_len += p1;
return 1;
default:
return -2;
}
}
static int pkey_hkdf_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
const char *value)
{
if (strcmp(type, "mode") == 0) {
int mode;
if (strcmp(value, "EXTRACT_AND_EXPAND") == 0)
mode = EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND;
else if (strcmp(value, "EXTRACT_ONLY") == 0)
mode = EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY;
else if (strcmp(value, "EXPAND_ONLY") == 0)
mode = EVP_PKEY_HKDEF_MODE_EXPAND_ONLY;
else
return 0;
return EVP_PKEY_CTX_hkdf_mode(ctx, mode);
}
if (strcmp(type, "md") == 0)
return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_DERIVE,
EVP_PKEY_CTRL_HKDF_MD, value);
if (strcmp(type, "salt") == 0)
return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_HKDF_SALT, value);
if (strcmp(type, "hexsalt") == 0)
return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_HKDF_SALT, value);
if (strcmp(type, "key") == 0)
return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_HKDF_KEY, value);
if (strcmp(type, "hexkey") == 0)
return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_HKDF_KEY, value);
if (strcmp(type, "info") == 0)
return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_HKDF_INFO, value);
if (strcmp(type, "hexinfo") == 0)
return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_HKDF_INFO, value);
KDFerr(KDF_F_PKEY_HKDF_CTRL_STR, KDF_R_UNKNOWN_PARAMETER_TYPE);
return -2;
}
static int pkey_hkdf_derive_init(EVP_PKEY_CTX *ctx)
{
HKDF_PKEY_CTX *kctx = ctx->data;
OPENSSL_clear_free(kctx->key, kctx->key_len);
OPENSSL_clear_free(kctx->salt, kctx->salt_len);
OPENSSL_cleanse(kctx->info, kctx->info_len);
memset(kctx, 0, sizeof(*kctx));
return 1;
}
static int pkey_hkdf_derive(EVP_PKEY_CTX *ctx, unsigned char *key,
size_t *keylen)
{
HKDF_PKEY_CTX *kctx = ctx->data;
if (kctx->md == NULL) {
KDFerr(KDF_F_PKEY_HKDF_DERIVE, KDF_R_MISSING_MESSAGE_DIGEST);
return 0;
}
if (kctx->key == NULL) {
KDFerr(KDF_F_PKEY_HKDF_DERIVE, KDF_R_MISSING_KEY);
return 0;
}
switch (kctx->mode) {
case EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND:
return HKDF(kctx->md, kctx->salt, kctx->salt_len, kctx->key,
kctx->key_len, kctx->info, kctx->info_len, key,
*keylen) != NULL;
case EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY:
if (key == NULL) {
*keylen = EVP_MD_size(kctx->md);
return 1;
}
return HKDF_Extract(kctx->md, kctx->salt, kctx->salt_len, kctx->key,
kctx->key_len, key, keylen) != NULL;
case EVP_PKEY_HKDEF_MODE_EXPAND_ONLY:
return HKDF_Expand(kctx->md, kctx->key, kctx->key_len, kctx->info,
kctx->info_len, key, *keylen) != NULL;
default:
return 0;
}
}
const EVP_PKEY_METHOD hkdf_pkey_meth = {
EVP_PKEY_HKDF,
0,
pkey_hkdf_init,
0,
pkey_hkdf_cleanup,
0, 0,
0, 0,
0,
0,
0,
0,
0, 0,
0, 0, 0, 0,
0, 0,
0, 0,
pkey_hkdf_derive_init,
pkey_hkdf_derive,
pkey_hkdf_ctrl,
pkey_hkdf_ctrl_str
};
static unsigned char *HKDF(const EVP_MD *evp_md,
const unsigned char *salt, size_t salt_len,
const unsigned char *key, size_t key_len,
const unsigned char *info, size_t info_len,
unsigned char *okm, size_t okm_len)
{
unsigned char prk[EVP_MAX_MD_SIZE];
unsigned char *ret;
size_t prk_len;
if (!HKDF_Extract(evp_md, salt, salt_len, key, key_len, prk, &prk_len))
return NULL;
ret = HKDF_Expand(evp_md, prk, prk_len, info, info_len, okm, okm_len);
OPENSSL_cleanse(prk, sizeof(prk));
return ret;
}
static unsigned char *HKDF_Extract(const EVP_MD *evp_md,
const unsigned char *salt, size_t salt_len,
const unsigned char *key, size_t key_len,
unsigned char *prk, size_t *prk_len)
{
unsigned int tmp_len;
if (!HMAC(evp_md, salt, salt_len, key, key_len, prk, &tmp_len))
return NULL;
*prk_len = tmp_len;
return prk;
}
static unsigned char *HKDF_Expand(const EVP_MD *evp_md,
const unsigned char *prk, size_t prk_len,
const unsigned char *info, size_t info_len,
unsigned char *okm, size_t okm_len)
{
HMAC_CTX *hmac;
unsigned char *ret = NULL;
unsigned int i;
unsigned char prev[EVP_MAX_MD_SIZE];
size_t done_len = 0, dig_len = EVP_MD_size(evp_md);
size_t n = okm_len / dig_len;
if (okm_len % dig_len)
n++;
if (n > 255 || okm == NULL)
return NULL;
if ((hmac = HMAC_CTX_new()) == NULL)
return NULL;
if (!HMAC_Init_ex(hmac, prk, prk_len, evp_md, NULL))
goto err;
for (i = 1; i <= n; i++) {
size_t copy_len;
const unsigned char ctr = i;
if (i > 1) {
if (!HMAC_Init_ex(hmac, NULL, 0, NULL, NULL))
goto err;
if (!HMAC_Update(hmac, prev, dig_len))
goto err;
}
if (!HMAC_Update(hmac, info, info_len))
goto err;
if (!HMAC_Update(hmac, &ctr, 1))
goto err;
if (!HMAC_Final(hmac, prev, NULL))
goto err;
copy_len = (done_len + dig_len > okm_len) ?
okm_len - done_len :
dig_len;
memcpy(okm + done_len, prev, copy_len);
done_len += copy_len;
}
ret = okm;
err:
OPENSSL_cleanse(prev, sizeof(prev));
HMAC_CTX_free(hmac);
return ret;
}

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/*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/err.h>
#include <openssl/kdferr.h>
#ifndef OPENSSL_NO_ERR
static const ERR_STRING_DATA KDF_str_functs[] = {
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_CTRL_STR, 0), "pkey_hkdf_ctrl_str"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_DERIVE, 0), "pkey_hkdf_derive"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_INIT, 0), "pkey_hkdf_init"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_STR, 0),
"pkey_scrypt_ctrl_str"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_UINT64, 0),
"pkey_scrypt_ctrl_uint64"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_DERIVE, 0), "pkey_scrypt_derive"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_INIT, 0), "pkey_scrypt_init"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_SET_MEMBUF, 0),
"pkey_scrypt_set_membuf"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_CTRL_STR, 0),
"pkey_tls1_prf_ctrl_str"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_DERIVE, 0),
"pkey_tls1_prf_derive"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_INIT, 0), "pkey_tls1_prf_init"},
{ERR_PACK(ERR_LIB_KDF, KDF_F_TLS1_PRF_ALG, 0), "tls1_prf_alg"},
{0, NULL}
};
static const ERR_STRING_DATA KDF_str_reasons[] = {
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_INVALID_DIGEST), "invalid digest"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_ITERATION_COUNT),
"missing iteration count"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_KEY), "missing key"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_MESSAGE_DIGEST),
"missing message digest"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_PARAMETER), "missing parameter"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_PASS), "missing pass"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SALT), "missing salt"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SECRET), "missing secret"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SEED), "missing seed"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_UNKNOWN_PARAMETER_TYPE),
"unknown parameter type"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_VALUE_ERROR), "value error"},
{ERR_PACK(ERR_LIB_KDF, 0, KDF_R_VALUE_MISSING), "value missing"},
{0, NULL}
};
#endif
int ERR_load_KDF_strings(void)
{
#ifndef OPENSSL_NO_ERR
if (ERR_func_error_string(KDF_str_functs[0].error) == NULL) {
ERR_load_strings_const(KDF_str_functs);
ERR_load_strings_const(KDF_str_reasons);
}
#endif
return 1;
}

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/*
* Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdlib.h>
#include <string.h>
#include <openssl/hmac.h>
#include <openssl/kdf.h>
#include <openssl/evp.h>
#include "internal/cryptlib.h"
#include "internal/evp_int.h"
#ifndef OPENSSL_NO_SCRYPT
static int atou64(const char *nptr, uint64_t *result);
typedef struct {
unsigned char *pass;
size_t pass_len;
unsigned char *salt;
size_t salt_len;
uint64_t N, r, p;
uint64_t maxmem_bytes;
} SCRYPT_PKEY_CTX;
/* Custom uint64_t parser since we do not have strtoull */
static int atou64(const char *nptr, uint64_t *result)
{
uint64_t value = 0;
while (*nptr) {
unsigned int digit;
uint64_t new_value;
if ((*nptr < '0') || (*nptr > '9')) {
return 0;
}
digit = (unsigned int)(*nptr - '0');
new_value = (value * 10) + digit;
if ((new_value < digit) || ((new_value - digit) / 10 != value)) {
/* Overflow */
return 0;
}
value = new_value;
nptr++;
}
*result = value;
return 1;
}
static int pkey_scrypt_init(EVP_PKEY_CTX *ctx)
{
SCRYPT_PKEY_CTX *kctx;
kctx = OPENSSL_zalloc(sizeof(*kctx));
if (kctx == NULL) {
KDFerr(KDF_F_PKEY_SCRYPT_INIT, ERR_R_MALLOC_FAILURE);
return 0;
}
/* Default values are the most conservative recommendation given in the
* original paper of C. Percival. Derivation uses roughly 1 GiB of memory
* for this parameter choice (approx. 128 * r * (N + p) bytes).
*/
kctx->N = 1 << 20;
kctx->r = 8;
kctx->p = 1;
kctx->maxmem_bytes = 1025 * 1024 * 1024;
ctx->data = kctx;
return 1;
}
static void pkey_scrypt_cleanup(EVP_PKEY_CTX *ctx)
{
SCRYPT_PKEY_CTX *kctx = ctx->data;
OPENSSL_clear_free(kctx->salt, kctx->salt_len);
OPENSSL_clear_free(kctx->pass, kctx->pass_len);
OPENSSL_free(kctx);
}
static int pkey_scrypt_set_membuf(unsigned char **buffer, size_t *buflen,
const unsigned char *new_buffer,
const int new_buflen)
{
if (new_buffer == NULL)
return 1;
if (new_buflen < 0)
return 0;
if (*buffer != NULL)
OPENSSL_clear_free(*buffer, *buflen);
if (new_buflen > 0) {
*buffer = OPENSSL_memdup(new_buffer, new_buflen);
} else {
*buffer = OPENSSL_malloc(1);
}
if (*buffer == NULL) {
KDFerr(KDF_F_PKEY_SCRYPT_SET_MEMBUF, ERR_R_MALLOC_FAILURE);
return 0;
}
*buflen = new_buflen;
return 1;
}
static int is_power_of_two(uint64_t value)
{
return (value != 0) && ((value & (value - 1)) == 0);
}
static int pkey_scrypt_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
{
SCRYPT_PKEY_CTX *kctx = ctx->data;
uint64_t u64_value;
switch (type) {
case EVP_PKEY_CTRL_PASS:
return pkey_scrypt_set_membuf(&kctx->pass, &kctx->pass_len, p2, p1);
case EVP_PKEY_CTRL_SCRYPT_SALT:
return pkey_scrypt_set_membuf(&kctx->salt, &kctx->salt_len, p2, p1);
case EVP_PKEY_CTRL_SCRYPT_N:
u64_value = *((uint64_t *)p2);
if ((u64_value <= 1) || !is_power_of_two(u64_value))
return 0;
kctx->N = u64_value;
return 1;
case EVP_PKEY_CTRL_SCRYPT_R:
u64_value = *((uint64_t *)p2);
if (u64_value < 1)
return 0;
kctx->r = u64_value;
return 1;
case EVP_PKEY_CTRL_SCRYPT_P:
u64_value = *((uint64_t *)p2);
if (u64_value < 1)
return 0;
kctx->p = u64_value;
return 1;
case EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES:
u64_value = *((uint64_t *)p2);
if (u64_value < 1)
return 0;
kctx->maxmem_bytes = u64_value;
return 1;
default:
return -2;
}
}
static int pkey_scrypt_ctrl_uint64(EVP_PKEY_CTX *ctx, int type,
const char *value)
{
uint64_t int_value;
if (!atou64(value, &int_value)) {
KDFerr(KDF_F_PKEY_SCRYPT_CTRL_UINT64, KDF_R_VALUE_ERROR);
return 0;
}
return pkey_scrypt_ctrl(ctx, type, 0, &int_value);
}
static int pkey_scrypt_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
const char *value)
{
if (value == NULL) {
KDFerr(KDF_F_PKEY_SCRYPT_CTRL_STR, KDF_R_VALUE_MISSING);
return 0;
}
if (strcmp(type, "pass") == 0)
return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_PASS, value);
if (strcmp(type, "hexpass") == 0)
return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_PASS, value);
if (strcmp(type, "salt") == 0)
return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_SCRYPT_SALT, value);
if (strcmp(type, "hexsalt") == 0)
return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_SCRYPT_SALT, value);
if (strcmp(type, "N") == 0)
return pkey_scrypt_ctrl_uint64(ctx, EVP_PKEY_CTRL_SCRYPT_N, value);
if (strcmp(type, "r") == 0)
return pkey_scrypt_ctrl_uint64(ctx, EVP_PKEY_CTRL_SCRYPT_R, value);
if (strcmp(type, "p") == 0)
return pkey_scrypt_ctrl_uint64(ctx, EVP_PKEY_CTRL_SCRYPT_P, value);
if (strcmp(type, "maxmem_bytes") == 0)
return pkey_scrypt_ctrl_uint64(ctx, EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
value);
KDFerr(KDF_F_PKEY_SCRYPT_CTRL_STR, KDF_R_UNKNOWN_PARAMETER_TYPE);
return -2;
}
static int pkey_scrypt_derive(EVP_PKEY_CTX *ctx, unsigned char *key,
size_t *keylen)
{
SCRYPT_PKEY_CTX *kctx = ctx->data;
if (kctx->pass == NULL) {
KDFerr(KDF_F_PKEY_SCRYPT_DERIVE, KDF_R_MISSING_PASS);
return 0;
}
if (kctx->salt == NULL) {
KDFerr(KDF_F_PKEY_SCRYPT_DERIVE, KDF_R_MISSING_SALT);
return 0;
}
return EVP_PBE_scrypt((char *)kctx->pass, kctx->pass_len, kctx->salt,
kctx->salt_len, kctx->N, kctx->r, kctx->p,
kctx->maxmem_bytes, key, *keylen);
}
const EVP_PKEY_METHOD scrypt_pkey_meth = {
EVP_PKEY_SCRYPT,
0,
pkey_scrypt_init,
0,
pkey_scrypt_cleanup,
0, 0,
0, 0,
0,
0,
0,
0,
0, 0,
0, 0, 0, 0,
0, 0,
0, 0,
0,
pkey_scrypt_derive,
pkey_scrypt_ctrl,
pkey_scrypt_ctrl_str
};
#endif

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/*
* Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/kdf.h>
#include <openssl/evp.h>
#include "internal/evp_int.h"
static int tls1_prf_alg(const EVP_MD *md,
const unsigned char *sec, size_t slen,
const unsigned char *seed, size_t seed_len,
unsigned char *out, size_t olen);
#define TLS1_PRF_MAXBUF 1024
/* TLS KDF pkey context structure */
typedef struct {
/* Digest to use for PRF */
const EVP_MD *md;
/* Secret value to use for PRF */
unsigned char *sec;
size_t seclen;
/* Buffer of concatenated seed data */
unsigned char seed[TLS1_PRF_MAXBUF];
size_t seedlen;
} TLS1_PRF_PKEY_CTX;
static int pkey_tls1_prf_init(EVP_PKEY_CTX *ctx)
{
TLS1_PRF_PKEY_CTX *kctx;
if ((kctx = OPENSSL_zalloc(sizeof(*kctx))) == NULL) {
KDFerr(KDF_F_PKEY_TLS1_PRF_INIT, ERR_R_MALLOC_FAILURE);
return 0;
}
ctx->data = kctx;
return 1;
}
static void pkey_tls1_prf_cleanup(EVP_PKEY_CTX *ctx)
{
TLS1_PRF_PKEY_CTX *kctx = ctx->data;
OPENSSL_clear_free(kctx->sec, kctx->seclen);
OPENSSL_cleanse(kctx->seed, kctx->seedlen);
OPENSSL_free(kctx);
}
static int pkey_tls1_prf_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
{
TLS1_PRF_PKEY_CTX *kctx = ctx->data;
switch (type) {
case EVP_PKEY_CTRL_TLS_MD:
kctx->md = p2;
return 1;
case EVP_PKEY_CTRL_TLS_SECRET:
if (p1 < 0)
return 0;
if (kctx->sec != NULL)
OPENSSL_clear_free(kctx->sec, kctx->seclen);
OPENSSL_cleanse(kctx->seed, kctx->seedlen);
kctx->seedlen = 0;
kctx->sec = OPENSSL_memdup(p2, p1);
if (kctx->sec == NULL)
return 0;
kctx->seclen = p1;
return 1;
case EVP_PKEY_CTRL_TLS_SEED:
if (p1 == 0 || p2 == NULL)
return 1;
if (p1 < 0 || p1 > (int)(TLS1_PRF_MAXBUF - kctx->seedlen))
return 0;
memcpy(kctx->seed + kctx->seedlen, p2, p1);
kctx->seedlen += p1;
return 1;
default:
return -2;
}
}
static int pkey_tls1_prf_ctrl_str(EVP_PKEY_CTX *ctx,
const char *type, const char *value)
{
if (value == NULL) {
KDFerr(KDF_F_PKEY_TLS1_PRF_CTRL_STR, KDF_R_VALUE_MISSING);
return 0;
}
if (strcmp(type, "md") == 0) {
TLS1_PRF_PKEY_CTX *kctx = ctx->data;
const EVP_MD *md = EVP_get_digestbyname(value);
if (md == NULL) {
KDFerr(KDF_F_PKEY_TLS1_PRF_CTRL_STR, KDF_R_INVALID_DIGEST);
return 0;
}
kctx->md = md;
return 1;
}
if (strcmp(type, "secret") == 0)
return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_TLS_SECRET, value);
if (strcmp(type, "hexsecret") == 0)
return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_TLS_SECRET, value);
if (strcmp(type, "seed") == 0)
return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_TLS_SEED, value);
if (strcmp(type, "hexseed") == 0)
return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_TLS_SEED, value);
KDFerr(KDF_F_PKEY_TLS1_PRF_CTRL_STR, KDF_R_UNKNOWN_PARAMETER_TYPE);
return -2;
}
static int pkey_tls1_prf_derive(EVP_PKEY_CTX *ctx, unsigned char *key,
size_t *keylen)
{
TLS1_PRF_PKEY_CTX *kctx = ctx->data;
if (kctx->md == NULL) {
KDFerr(KDF_F_PKEY_TLS1_PRF_DERIVE, KDF_R_MISSING_MESSAGE_DIGEST);
return 0;
}
if (kctx->sec == NULL) {
KDFerr(KDF_F_PKEY_TLS1_PRF_DERIVE, KDF_R_MISSING_SECRET);
return 0;
}
if (kctx->seedlen == 0) {
KDFerr(KDF_F_PKEY_TLS1_PRF_DERIVE, KDF_R_MISSING_SEED);
return 0;
}
return tls1_prf_alg(kctx->md, kctx->sec, kctx->seclen,
kctx->seed, kctx->seedlen,
key, *keylen);
}
const EVP_PKEY_METHOD tls1_prf_pkey_meth = {
EVP_PKEY_TLS1_PRF,
0,
pkey_tls1_prf_init,
0,
pkey_tls1_prf_cleanup,
0, 0,
0, 0,
0,
0,
0,
0,
0, 0,
0, 0, 0, 0,
0, 0,
0, 0,
0,
pkey_tls1_prf_derive,
pkey_tls1_prf_ctrl,
pkey_tls1_prf_ctrl_str
};
static int tls1_prf_P_hash(const EVP_MD *md,
const unsigned char *sec, size_t sec_len,
const unsigned char *seed, size_t seed_len,
unsigned char *out, size_t olen)
{
int chunk;
EVP_MD_CTX *ctx = NULL, *ctx_tmp = NULL, *ctx_init = NULL;
EVP_PKEY *mac_key = NULL;
unsigned char A1[EVP_MAX_MD_SIZE];
size_t A1_len;
int ret = 0;
chunk = EVP_MD_size(md);
if (!ossl_assert(chunk > 0))
goto err;
ctx = EVP_MD_CTX_new();
ctx_tmp = EVP_MD_CTX_new();
ctx_init = EVP_MD_CTX_new();
if (ctx == NULL || ctx_tmp == NULL || ctx_init == NULL)
goto err;
EVP_MD_CTX_set_flags(ctx_init, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
mac_key = EVP_PKEY_new_raw_private_key(EVP_PKEY_HMAC, NULL, sec, sec_len);
if (mac_key == NULL)
goto err;
if (!EVP_DigestSignInit(ctx_init, NULL, md, NULL, mac_key))
goto err;
if (!EVP_MD_CTX_copy_ex(ctx, ctx_init))
goto err;
if (seed != NULL && !EVP_DigestSignUpdate(ctx, seed, seed_len))
goto err;
if (!EVP_DigestSignFinal(ctx, A1, &A1_len))
goto err;
for (;;) {
/* Reinit mac contexts */
if (!EVP_MD_CTX_copy_ex(ctx, ctx_init))
goto err;
if (!EVP_DigestSignUpdate(ctx, A1, A1_len))
goto err;
if (olen > (size_t)chunk && !EVP_MD_CTX_copy_ex(ctx_tmp, ctx))
goto err;
if (seed && !EVP_DigestSignUpdate(ctx, seed, seed_len))
goto err;
if (olen > (size_t)chunk) {
size_t mac_len;
if (!EVP_DigestSignFinal(ctx, out, &mac_len))
goto err;
out += mac_len;
olen -= mac_len;
/* calc the next A1 value */
if (!EVP_DigestSignFinal(ctx_tmp, A1, &A1_len))
goto err;
} else { /* last one */
if (!EVP_DigestSignFinal(ctx, A1, &A1_len))
goto err;
memcpy(out, A1, olen);
break;
}
}
ret = 1;
err:
EVP_PKEY_free(mac_key);
EVP_MD_CTX_free(ctx);
EVP_MD_CTX_free(ctx_tmp);
EVP_MD_CTX_free(ctx_init);
OPENSSL_cleanse(A1, sizeof(A1));
return ret;
}
static int tls1_prf_alg(const EVP_MD *md,
const unsigned char *sec, size_t slen,
const unsigned char *seed, size_t seed_len,
unsigned char *out, size_t olen)
{
if (EVP_MD_type(md) == NID_md5_sha1) {
size_t i;
unsigned char *tmp;
if (!tls1_prf_P_hash(EVP_md5(), sec, slen/2 + (slen & 1),
seed, seed_len, out, olen))
return 0;
if ((tmp = OPENSSL_malloc(olen)) == NULL) {
KDFerr(KDF_F_TLS1_PRF_ALG, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!tls1_prf_P_hash(EVP_sha1(), sec + slen/2, slen/2 + (slen & 1),
seed, seed_len, tmp, olen)) {
OPENSSL_clear_free(tmp, olen);
return 0;
}
for (i = 0; i < olen; i++)
out[i] ^= tmp[i];
OPENSSL_clear_free(tmp, olen);
return 1;
}
if (!tls1_prf_P_hash(md, sec, slen, seed, seed_len, out, olen))
return 0;
return 1;
}