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Diffstat (limited to 'Cryptlib/OpenSSL/crypto/asn1/p5_scrypt.c')
-rw-r--r--Cryptlib/OpenSSL/crypto/asn1/p5_scrypt.c283
1 files changed, 0 insertions, 283 deletions
diff --git a/Cryptlib/OpenSSL/crypto/asn1/p5_scrypt.c b/Cryptlib/OpenSSL/crypto/asn1/p5_scrypt.c
deleted file mode 100644
index 4cb78374..00000000
--- a/Cryptlib/OpenSSL/crypto/asn1/p5_scrypt.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * Copyright 2015-2016 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/asn1t.h>
-#include <openssl/err.h>
-#include <openssl/evp.h>
-#include <openssl/x509.h>
-#include <openssl/rand.h>
-
-#ifndef OPENSSL_NO_SCRYPT
-/* PKCS#5 scrypt password based encryption structures */
-
-typedef struct {
- ASN1_OCTET_STRING *salt;
- ASN1_INTEGER *costParameter;
- ASN1_INTEGER *blockSize;
- ASN1_INTEGER *parallelizationParameter;
- ASN1_INTEGER *keyLength;
-} SCRYPT_PARAMS;
-
-ASN1_SEQUENCE(SCRYPT_PARAMS) = {
- ASN1_SIMPLE(SCRYPT_PARAMS, salt, ASN1_OCTET_STRING),
- ASN1_SIMPLE(SCRYPT_PARAMS, costParameter, ASN1_INTEGER),
- ASN1_SIMPLE(SCRYPT_PARAMS, blockSize, ASN1_INTEGER),
- ASN1_SIMPLE(SCRYPT_PARAMS, parallelizationParameter, ASN1_INTEGER),
- ASN1_OPT(SCRYPT_PARAMS, keyLength, ASN1_INTEGER),
-} static_ASN1_SEQUENCE_END(SCRYPT_PARAMS)
-
-DECLARE_ASN1_ALLOC_FUNCTIONS(SCRYPT_PARAMS)
-IMPLEMENT_ASN1_ALLOC_FUNCTIONS(SCRYPT_PARAMS)
-
-static X509_ALGOR *pkcs5_scrypt_set(const unsigned char *salt, size_t saltlen,
- size_t keylen, uint64_t N, uint64_t r,
- uint64_t p);
-
-/*
- * Return an algorithm identifier for a PKCS#5 v2.0 PBE algorithm using scrypt
- */
-
-X509_ALGOR *PKCS5_pbe2_set_scrypt(const EVP_CIPHER *cipher,
- const unsigned char *salt, int saltlen,
- unsigned char *aiv, uint64_t N, uint64_t r,
- uint64_t p)
-{
- X509_ALGOR *scheme = NULL, *ret = NULL;
- int alg_nid;
- size_t keylen = 0;
- EVP_CIPHER_CTX *ctx = NULL;
- unsigned char iv[EVP_MAX_IV_LENGTH];
- PBE2PARAM *pbe2 = NULL;
-
- if (!cipher) {
- ASN1err(ASN1_F_PKCS5_PBE2_SET_SCRYPT, ERR_R_PASSED_NULL_PARAMETER);
- goto err;
- }
-
- if (EVP_PBE_scrypt(NULL, 0, NULL, 0, N, r, p, 0, NULL, 0) == 0) {
- ASN1err(ASN1_F_PKCS5_PBE2_SET_SCRYPT,
- ASN1_R_INVALID_SCRYPT_PARAMETERS);
- goto err;
- }
-
- alg_nid = EVP_CIPHER_type(cipher);
- if (alg_nid == NID_undef) {
- ASN1err(ASN1_F_PKCS5_PBE2_SET_SCRYPT,
- ASN1_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
- goto err;
- }
-
- pbe2 = PBE2PARAM_new();
- if (pbe2 == NULL)
- goto merr;
-
- /* Setup the AlgorithmIdentifier for the encryption scheme */
- scheme = pbe2->encryption;
-
- scheme->algorithm = OBJ_nid2obj(alg_nid);
- scheme->parameter = ASN1_TYPE_new();
- if (scheme->parameter == NULL)
- goto merr;
-
- /* Create random IV */
- if (EVP_CIPHER_iv_length(cipher)) {
- if (aiv)
- memcpy(iv, aiv, EVP_CIPHER_iv_length(cipher));
- else if (RAND_bytes(iv, EVP_CIPHER_iv_length(cipher)) < 0)
- goto err;
- }
-
- ctx = EVP_CIPHER_CTX_new();
- if (ctx == NULL)
- goto merr;
-
- /* Dummy cipherinit to just setup the IV */
- if (EVP_CipherInit_ex(ctx, cipher, NULL, NULL, iv, 0) == 0)
- goto err;
- if (EVP_CIPHER_param_to_asn1(ctx, scheme->parameter) < 0) {
- ASN1err(ASN1_F_PKCS5_PBE2_SET_SCRYPT,
- ASN1_R_ERROR_SETTING_CIPHER_PARAMS);
- goto err;
- }
- EVP_CIPHER_CTX_free(ctx);
- ctx = NULL;
-
- /* If its RC2 then we'd better setup the key length */
-
- if (alg_nid == NID_rc2_cbc)
- keylen = EVP_CIPHER_key_length(cipher);
-
- /* Setup keyfunc */
-
- X509_ALGOR_free(pbe2->keyfunc);
-
- pbe2->keyfunc = pkcs5_scrypt_set(salt, saltlen, keylen, N, r, p);
-
- if (pbe2->keyfunc == NULL)
- goto merr;
-
- /* Now set up top level AlgorithmIdentifier */
-
- ret = X509_ALGOR_new();
- if (ret == NULL)
- goto merr;
-
- ret->algorithm = OBJ_nid2obj(NID_pbes2);
-
- /* Encode PBE2PARAM into parameter */
-
- if (ASN1_TYPE_pack_sequence(ASN1_ITEM_rptr(PBE2PARAM), pbe2,
- &ret->parameter) == NULL)
- goto merr;
-
- PBE2PARAM_free(pbe2);
- pbe2 = NULL;
-
- return ret;
-
- merr:
- ASN1err(ASN1_F_PKCS5_PBE2_SET_SCRYPT, ERR_R_MALLOC_FAILURE);
-
- err:
- PBE2PARAM_free(pbe2);
- X509_ALGOR_free(ret);
- EVP_CIPHER_CTX_free(ctx);
-
- return NULL;
-}
-
-static X509_ALGOR *pkcs5_scrypt_set(const unsigned char *salt, size_t saltlen,
- size_t keylen, uint64_t N, uint64_t r,
- uint64_t p)
-{
- X509_ALGOR *keyfunc = NULL;
- SCRYPT_PARAMS *sparam = SCRYPT_PARAMS_new();
-
- if (sparam == NULL)
- goto merr;
-
- if (!saltlen)
- saltlen = PKCS5_SALT_LEN;
-
- /* This will either copy salt or grow the buffer */
- if (ASN1_STRING_set(sparam->salt, salt, saltlen) == 0)
- goto merr;
-
- if (salt == NULL && RAND_bytes(sparam->salt->data, saltlen) <= 0)
- goto err;
-
- if (ASN1_INTEGER_set_uint64(sparam->costParameter, N) == 0)
- goto merr;
-
- if (ASN1_INTEGER_set_uint64(sparam->blockSize, r) == 0)
- goto merr;
-
- if (ASN1_INTEGER_set_uint64(sparam->parallelizationParameter, p) == 0)
- goto merr;
-
- /* If have a key len set it up */
-
- if (keylen > 0) {
- sparam->keyLength = ASN1_INTEGER_new();
- if (sparam->keyLength == NULL)
- goto merr;
- if (ASN1_INTEGER_set_int64(sparam->keyLength, keylen) == 0)
- goto merr;
- }
-
- /* Finally setup the keyfunc structure */
-
- keyfunc = X509_ALGOR_new();
- if (keyfunc == NULL)
- goto merr;
-
- keyfunc->algorithm = OBJ_nid2obj(NID_id_scrypt);
-
- /* Encode SCRYPT_PARAMS into parameter of pbe2 */
-
- if (ASN1_TYPE_pack_sequence(ASN1_ITEM_rptr(SCRYPT_PARAMS), sparam,
- &keyfunc->parameter) == NULL)
- goto merr;
-
- SCRYPT_PARAMS_free(sparam);
- return keyfunc;
-
- merr:
- ASN1err(ASN1_F_PKCS5_SCRYPT_SET, ERR_R_MALLOC_FAILURE);
- err:
- SCRYPT_PARAMS_free(sparam);
- X509_ALGOR_free(keyfunc);
- return NULL;
-}
-
-int PKCS5_v2_scrypt_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass,
- int passlen, ASN1_TYPE *param,
- const EVP_CIPHER *c, const EVP_MD *md, int en_de)
-{
- unsigned char *salt, key[EVP_MAX_KEY_LENGTH];
- uint64_t p, r, N;
- size_t saltlen;
- size_t keylen = 0;
- int rv = 0;
- SCRYPT_PARAMS *sparam = NULL;
-
- if (EVP_CIPHER_CTX_cipher(ctx) == NULL) {
- EVPerr(EVP_F_PKCS5_V2_SCRYPT_KEYIVGEN, EVP_R_NO_CIPHER_SET);
- goto err;
- }
-
- /* Decode parameter */
-
- sparam = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(SCRYPT_PARAMS), param);
-
- if (sparam == NULL) {
- EVPerr(EVP_F_PKCS5_V2_SCRYPT_KEYIVGEN, EVP_R_DECODE_ERROR);
- goto err;
- }
-
- keylen = EVP_CIPHER_CTX_key_length(ctx);
-
- /* Now check the parameters of sparam */
-
- if (sparam->keyLength) {
- uint64_t spkeylen;
- if ((ASN1_INTEGER_get_uint64(&spkeylen, sparam->keyLength) == 0)
- || (spkeylen != keylen)) {
- EVPerr(EVP_F_PKCS5_V2_SCRYPT_KEYIVGEN,
- EVP_R_UNSUPPORTED_KEYLENGTH);
- goto err;
- }
- }
- /* Check all parameters fit in uint64_t and are acceptable to scrypt */
- if (ASN1_INTEGER_get_uint64(&N, sparam->costParameter) == 0
- || ASN1_INTEGER_get_uint64(&r, sparam->blockSize) == 0
- || ASN1_INTEGER_get_uint64(&p, sparam->parallelizationParameter) == 0
- || EVP_PBE_scrypt(NULL, 0, NULL, 0, N, r, p, 0, NULL, 0) == 0) {
- EVPerr(EVP_F_PKCS5_V2_SCRYPT_KEYIVGEN,
- EVP_R_ILLEGAL_SCRYPT_PARAMETERS);
- goto err;
- }
-
- /* it seems that its all OK */
-
- salt = sparam->salt->data;
- saltlen = sparam->salt->length;
- if (EVP_PBE_scrypt(pass, passlen, salt, saltlen, N, r, p, 0, key, keylen)
- == 0)
- goto err;
- rv = EVP_CipherInit_ex(ctx, NULL, NULL, key, NULL, en_de);
- err:
- if (keylen)
- OPENSSL_cleanse(key, keylen);
- SCRYPT_PARAMS_free(sparam);
- return rv;
-}
-#endif /* OPENSSL_NO_SCRYPT */
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