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-rw-r--r--crypto/evp/p5_crpt.c142
1 files changed, 74 insertions, 68 deletions
diff --git a/crypto/evp/p5_crpt.c b/crypto/evp/p5_crpt.c
index 294cc90d878c..d06ab90a3e91 100644
--- a/crypto/evp/p5_crpt.c
+++ b/crypto/evp/p5_crpt.c
@@ -1,6 +1,7 @@
/* p5_crpt.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 1999.
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 1999.
*/
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
@@ -10,7 +11,7 @@
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
@@ -62,7 +63,8 @@
#include <openssl/x509.h>
#include <openssl/evp.h>
-/* Doesn't do anything now: Builtin PBE algorithms in static table.
+/*
+ * Doesn't do anything now: Builtin PBE algorithms in static table.
*/
void PKCS5_PBE_add(void)
@@ -70,74 +72,78 @@ void PKCS5_PBE_add(void)
}
int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
- ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
- int en_de)
+ ASN1_TYPE *param, const EVP_CIPHER *cipher,
+ const EVP_MD *md, int en_de)
{
- EVP_MD_CTX ctx;
- unsigned char md_tmp[EVP_MAX_MD_SIZE];
- unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
- int i;
- PBEPARAM *pbe;
- int saltlen, iter;
- unsigned char *salt;
- const unsigned char *pbuf;
- int mdsize;
- int rv = 0;
- EVP_MD_CTX_init(&ctx);
+ EVP_MD_CTX ctx;
+ unsigned char md_tmp[EVP_MAX_MD_SIZE];
+ unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
+ int i;
+ PBEPARAM *pbe;
+ int saltlen, iter;
+ unsigned char *salt;
+ const unsigned char *pbuf;
+ int mdsize;
+ int rv = 0;
+ EVP_MD_CTX_init(&ctx);
- /* Extract useful info from parameter */
- if (param == NULL || param->type != V_ASN1_SEQUENCE ||
- param->value.sequence == NULL) {
- EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
- return 0;
- }
+ /* Extract useful info from parameter */
+ if (param == NULL || param->type != V_ASN1_SEQUENCE ||
+ param->value.sequence == NULL) {
+ EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN, EVP_R_DECODE_ERROR);
+ return 0;
+ }
- pbuf = param->value.sequence->data;
- if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) {
- EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
- return 0;
- }
+ pbuf = param->value.sequence->data;
+ if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) {
+ EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN, EVP_R_DECODE_ERROR);
+ return 0;
+ }
- if (!pbe->iter) iter = 1;
- else iter = ASN1_INTEGER_get (pbe->iter);
- salt = pbe->salt->data;
- saltlen = pbe->salt->length;
+ if (!pbe->iter)
+ iter = 1;
+ else
+ iter = ASN1_INTEGER_get(pbe->iter);
+ salt = pbe->salt->data;
+ saltlen = pbe->salt->length;
- if(!pass) passlen = 0;
- else if(passlen == -1) passlen = strlen(pass);
+ if (!pass)
+ passlen = 0;
+ else if (passlen == -1)
+ passlen = strlen(pass);
- if (!EVP_DigestInit_ex(&ctx, md, NULL))
- goto err;
- if (!EVP_DigestUpdate(&ctx, pass, passlen))
- goto err;
- if (!EVP_DigestUpdate(&ctx, salt, saltlen))
- goto err;
- PBEPARAM_free(pbe);
- if (!EVP_DigestFinal_ex(&ctx, md_tmp, NULL))
- goto err;
- mdsize = EVP_MD_size(md);
- if (mdsize < 0)
- return 0;
- for (i = 1; i < iter; i++) {
- if (!EVP_DigestInit_ex(&ctx, md, NULL))
- goto err;
- if (!EVP_DigestUpdate(&ctx, md_tmp, mdsize))
- goto err;
- if (!EVP_DigestFinal_ex (&ctx, md_tmp, NULL))
- goto err;
- }
- OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= (int)sizeof(md_tmp));
- memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher));
- OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16);
- memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),
- EVP_CIPHER_iv_length(cipher));
- if (!EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de))
- goto err;
- OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);
- OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
- OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
- rv = 1;
- err:
- EVP_MD_CTX_cleanup(&ctx);
- return rv;
+ if (!EVP_DigestInit_ex(&ctx, md, NULL))
+ goto err;
+ if (!EVP_DigestUpdate(&ctx, pass, passlen))
+ goto err;
+ if (!EVP_DigestUpdate(&ctx, salt, saltlen))
+ goto err;
+ PBEPARAM_free(pbe);
+ if (!EVP_DigestFinal_ex(&ctx, md_tmp, NULL))
+ goto err;
+ mdsize = EVP_MD_size(md);
+ if (mdsize < 0)
+ return 0;
+ for (i = 1; i < iter; i++) {
+ if (!EVP_DigestInit_ex(&ctx, md, NULL))
+ goto err;
+ if (!EVP_DigestUpdate(&ctx, md_tmp, mdsize))
+ goto err;
+ if (!EVP_DigestFinal_ex(&ctx, md_tmp, NULL))
+ goto err;
+ }
+ OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= (int)sizeof(md_tmp));
+ memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher));
+ OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16);
+ memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),
+ EVP_CIPHER_iv_length(cipher));
+ if (!EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de))
+ goto err;
+ OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);
+ OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
+ OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
+ rv = 1;
+ err:
+ EVP_MD_CTX_cleanup(&ctx);
+ return rv;
}