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Cleanse memory using the new OPENSSL_cleanse() function.

Browse source 
I've covered all the memset()s I felt safe modifying, but may have missed some.
This commit is contained in:
Richard Levitte 2002-11-28 08:06:36 +00:00
parent 615ee04098
commit 920b700d4a
46 changed files with 102 additions and 102 deletions
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2
apps/ca.c
View file

@ -543,7 +543,7 @@ bad:
goto err;
}
pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,key);
if(key) memset(key,0,strlen(key));
if(key) OPENSSL_cleanse(key,strlen(key));
if (pkey == NULL)
{
BIO_printf(bio_err,"unable to load CA private key\n");

2
apps/dgst.c
View file

@ -327,7 +327,7 @@ int MAIN(int argc, char **argv)
end:
if (buf != NULL)
{
memset(buf,0,BUFSIZE);
OPENSSL_cleanse(buf,BUFSIZE);
OPENSSL_free(buf);
}
if (in != NULL) BIO_free(in);

4
apps/enc.c
View file

@ -506,9 +506,9 @@ bad:
* bug picked up by
* Larry J. Hughes Jr. <hughes@indiana.edu> */
if (str == strbuf)
memset(str,0,SIZE);
OPENSSL_cleanse(str,SIZE);
else
memset(str,0,strlen(str));
OPENSSL_cleanse(str,strlen(str));
}
if ((hiv != NULL) && !set_hex(hiv,iv,8))
{

4
apps/s_client.c
View file

@ -768,8 +768,8 @@ end:
if (con != NULL) SSL_free(con);
if (con2 != NULL) SSL_free(con2);
if (ctx != NULL) SSL_CTX_free(ctx);
if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); OPENSSL_free(cbuf); }
if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); OPENSSL_free(sbuf); }
if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
if (bio_c_out != NULL)
{
BIO_free(bio_c_out);

2
apps/s_server.c
View file

@ -1043,7 +1043,7 @@ err:
BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
if (buf != NULL)
{
memset(buf,0,bufsize);
OPENSSL_cleanse(buf,bufsize);
OPENSSL_free(buf);
}
if (ret >= 0)

6
crypto/asn1/a_sign.c
View file

@ -199,10 +199,10 @@ int ASN1_sign(int (*i2d)(), X509_ALGOR *algor1, X509_ALGOR *algor2,
signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);
signature->flags|=ASN1_STRING_FLAG_BITS_LEFT;
err:
memset(&ctx,0,sizeof(ctx));
OPENSSL_cleanse(&ctx,sizeof(ctx));
if (buf_in != NULL)
{ memset((char *)buf_in,0,(unsigned int)inl); OPENSSL_free(buf_in); }
{ OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_free(buf_in); }
if (buf_out != NULL)
{ memset((char *)buf_out,0,outll); OPENSSL_free(buf_out); }
{ OPENSSL_cleanse((char *)buf_out,outll); OPENSSL_free(buf_out); }
return(outl);
}

2
crypto/asn1/a_verify.c
View file

@ -100,7 +100,7 @@ int ASN1_verify(int (*i2d)(), X509_ALGOR *a, ASN1_BIT_STRING *signature,
EVP_VerifyInit(&ctx,type);
EVP_VerifyUpdate(&ctx,(unsigned char *)buf_in,inl);
memset(buf_in,0,(unsigned int)inl);
OPENSSL_cleanse(buf_in,(unsigned int)inl);
OPENSSL_free(buf_in);
if (EVP_VerifyFinal(&ctx,(unsigned char *)signature->data,

4
crypto/asn1/n_pkey.c
View file

@ -181,7 +181,7 @@ int i2d_RSA_NET(RSA *a, unsigned char **pp, int (*cb)(), int sgckey)
}
EVP_BytesToKey(EVP_rc4(),EVP_md5(),NULL,buf,i,1,key,NULL);
memset(buf,0,256);
OPENSSL_cleanse(buf,256);
EVP_CIPHER_CTX_init(&ctx);
EVP_EncryptInit(&ctx,EVP_rc4(),key,NULL);
@ -292,7 +292,7 @@ RSA *d2i_RSA_NET_2(RSA **a, unsigned char **pp, long length,
}
EVP_BytesToKey(EVP_rc4(),EVP_md5(),NULL,buf,i,1,key,NULL);
memset(buf,0,256);
OPENSSL_cleanse(buf,256);
EVP_CIPHER_CTX_init(&ctx);
EVP_DecryptInit(&ctx,EVP_rc4(),key,NULL);

4
crypto/asn1/p8_pkey.c
View file

@ -119,8 +119,8 @@ void PKCS8_PRIV_KEY_INFO_free (PKCS8_PRIV_KEY_INFO *a)
X509_ALGOR_free(a->pkeyalg);
/* Clear sensitive data */
if (a->pkey->value.octet_string)
memset (a->pkey->value.octet_string->data,
0, a->pkey->value.octet_string->length);
OPENSSL_cleanse(a->pkey->value.octet_string->data,
a->pkey->value.octet_string->length);
ASN1_TYPE_free (a->pkey);
sk_X509_ATTRIBUTE_pop_free (a->attributes, X509_ATTRIBUTE_free);
OPENSSL_free (a);

32
crypto/des/des.c
View file

@ -423,7 +423,7 @@ void doencryption(void)
k2[i-8]=k;
}
des_set_key_unchecked(&k2,ks2);
memset(k2,0,sizeof(k2));
OPENSSL_cleanse(k2,sizeof(k2));
}
else if (longk || flag3)
{
@ -431,7 +431,7 @@ void doencryption(void)
{
des_string_to_2keys(key,&kk,&k2);
des_set_key_unchecked(&k2,ks2);
memset(k2,0,sizeof(k2));
OPENSSL_cleanse(k2,sizeof(k2));
}
else
des_string_to_key(key,&kk);
@ -453,8 +453,8 @@ void doencryption(void)
}
des_set_key_unchecked(&kk,ks);
memset(key,0,sizeof(key));
memset(kk,0,sizeof(kk));
OPENSSL_cleanse(key,sizeof(key));
OPENSSL_cleanse(kk,sizeof(kk));
/* woops - A bug that does not showup under unix :-( */
memset(iv,0,sizeof(iv));
memset(iv2,0,sizeof(iv2));
@ -662,18 +662,18 @@ void doencryption(void)
if (l) fclose(CKSUM_OUT);
}
problems:
memset(buf,0,sizeof(buf));
memset(obuf,0,sizeof(obuf));
memset(ks,0,sizeof(ks));
memset(ks2,0,sizeof(ks2));
memset(iv,0,sizeof(iv));
memset(iv2,0,sizeof(iv2));
memset(kk,0,sizeof(kk));
memset(k2,0,sizeof(k2));
memset(uubuf,0,sizeof(uubuf));
memset(b,0,sizeof(b));
memset(bb,0,sizeof(bb));
memset(cksum,0,sizeof(cksum));
OPENSSL_cleanse(buf,sizeof(buf));
OPENSSL_cleanse(obuf,sizeof(obuf));
OPENSSL_cleanse(ks,sizeof(ks));
OPENSSL_cleanse(ks2,sizeof(ks2));
OPENSSL_cleanse(iv,sizeof(iv));
OPENSSL_cleanse(iv2,sizeof(iv2));
OPENSSL_cleanse(kk,sizeof(kk));
OPENSSL_cleanse(k2,sizeof(k2));
OPENSSL_cleanse(uubuf,sizeof(uubuf));
OPENSSL_cleanse(b,sizeof(b));
OPENSSL_cleanse(bb,sizeof(bb));
OPENSSL_cleanse(cksum,sizeof(cksum));
if (Exit) EXIT(Exit);
}

8
crypto/des/read2pwd.c
View file

@ -65,8 +65,8 @@ int des_read_password(des_cblock *key, const char *prompt, int verify)
if ((ok=des_read_pw(buf,buff,BUFSIZ,prompt,verify)) == 0)
des_string_to_key(buf,key);
memset(buf,0,BUFSIZ);
memset(buff,0,BUFSIZ);
OPENSSL_cleanse(buf,BUFSIZ);
OPENSSL_cleanse(buff,BUFSIZ);
return(ok);
}
@ -78,7 +78,7 @@ int des_read_2passwords(des_cblock *key1, des_cblock *key2, const char *prompt,
if ((ok=des_read_pw(buf,buff,BUFSIZ,prompt,verify)) == 0)
des_string_to_2keys(buf,key1,key2);
memset(buf,0,BUFSIZ);
memset(buff,0,BUFSIZ);
OPENSSL_cleanse(buf,BUFSIZ);
OPENSSL_cleanse(buff,BUFSIZ);
return(ok);
}

2
crypto/des/read_pwd.c
View file

@ -218,7 +218,7 @@ int des_read_pw_string(char *buf, int length, const char *prompt,
int ret;
ret=des_read_pw(buf,buff,(length>BUFSIZ)?BUFSIZ:length,prompt,verify);
memset(buff,0,BUFSIZ);
OPENSSL_cleanse(buff,BUFSIZ);
return(ret);
}

4
crypto/des/str2key.c
View file

@ -88,7 +88,7 @@ void des_string_to_key(const char *str, des_cblock *key)
des_set_odd_parity(key);
des_set_key_unchecked(key,ks);
des_cbc_cksum((const unsigned char*)str,key,length,ks,key);
memset(ks,0,sizeof(ks));
OPENSSL_cleanse(ks,sizeof(ks));
des_set_odd_parity(key);
}
@ -149,7 +149,7 @@ void des_string_to_2keys(const char *str, des_cblock *key1, des_cblock *key2)
des_cbc_cksum((const unsigned char*)str,key1,length,ks,key1);
des_set_key_unchecked(key2,ks);
des_cbc_cksum((const unsigned char*)str,key2,length,ks,key2);
memset(ks,0,sizeof(ks));
OPENSSL_cleanse(ks,sizeof(ks));
des_set_odd_parity(key1);
des_set_odd_parity(key2);
}

2
crypto/evp/bio_enc.c
View file

@ -128,7 +128,7 @@ static int enc_free(BIO *a)
if (a == NULL) return(0);
b=(BIO_ENC_CTX *)a->ptr;
EVP_CIPHER_CTX_cleanup(&(b->cipher));
memset(a->ptr,0,sizeof(BIO_ENC_CTX));
OPENSSL_cleanse(a->ptr,sizeof(BIO_ENC_CTX));
OPENSSL_free(a->ptr);
a->ptr=NULL;
a->init=0;

2
crypto/evp/bio_ok.c
View file

@ -208,7 +208,7 @@ static int ok_new(BIO *bi)
static int ok_free(BIO *a)
{
if (a == NULL) return(0);
memset(a->ptr,0,sizeof(BIO_OK_CTX));
OPENSSL_cleanse(a->ptr,sizeof(BIO_OK_CTX));
OPENSSL_free(a->ptr);
a->ptr=NULL;
a->init=0;

2
crypto/evp/e_idea.c
View file

@ -103,7 +103,7 @@ static int idea_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
idea_set_encrypt_key(key,&tmp);
idea_set_decrypt_key(&tmp,&(ctx->c.idea_ks));
memset((unsigned char *)&tmp,0,
OPENSSL_cleanse((unsigned char *)&tmp,
sizeof(IDEA_KEY_SCHEDULE));
}
return 1;

4
crypto/evp/evp_key.c
View file

@ -152,8 +152,8 @@ int EVP_BytesToKey(const EVP_CIPHER *type, EVP_MD *md,
}
if ((nkey == 0) && (niv == 0)) break;
}
memset(&c,0,sizeof(c));
memset(&(md_buf[0]),0,EVP_MAX_MD_SIZE);
OPENSSL_cleanse(&c,sizeof(c));
OPENSSL_cleanse(&(md_buf[0]),EVP_MAX_MD_SIZE);
return(type->key_len);
}

6
crypto/evp/p5_crpt.c
View file

@ -142,8 +142,8 @@ int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
memcpy (iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),
EVP_CIPHER_iv_length(cipher));
EVP_CipherInit(cctx, cipher, key, iv, en_de);
memset(md_tmp, 0, EVP_MAX_MD_SIZE);
memset(key, 0, EVP_MAX_KEY_LENGTH);
memset(iv, 0, EVP_MAX_IV_LENGTH);
OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);
OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
return 1;
}

2
crypto/evp/p5_crpt2.c
View file

@ -228,7 +228,7 @@ int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
iter = ASN1_INTEGER_get(kdf->iter);
PKCS5_PBKDF2_HMAC_SHA1(pass, passlen, salt, saltlen, iter, keylen, key);
EVP_CipherInit(ctx, NULL, key, NULL, en_de);
memset(key, 0, keylen);
OPENSSL_cleanse(key, keylen);
PBKDF2PARAM_free(kdf);
return 1;

2
crypto/evp/p_open.c
View file

@ -101,7 +101,7 @@ int EVP_OpenInit(EVP_CIPHER_CTX *ctx, EVP_CIPHER *type, unsigned char *ek,
ret=1;
err:
if (key != NULL) memset(key,0,size);
if (key != NULL) OPENSSL_cleanse(key,size);
OPENSSL_free(key);
return(ret);
}

2
crypto/md32_common.h
View file

@ -602,6 +602,6 @@ void HASH_FINAL (unsigned char *md, HASH_CTX *c)
c->num=0;
/* clear stuff, HASH_BLOCK may be leaving some stuff on the stack
* but I'm not worried :-)
memset((void *)c,0,sizeof(HASH_CTX));
OPENSSL_cleanse((void *)c,sizeof(HASH_CTX));
*/
}

4
crypto/pem/pem_info.c
View file

@ -358,7 +358,7 @@ int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
ret=1;
err:
memset((char *)&ctx,0,sizeof(ctx));
memset(buf,0,PEM_BUFSIZE);
OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
OPENSSL_cleanse(buf,PEM_BUFSIZE);
return(ret);
}

14
crypto/pem/pem_lib.c
View file

@ -401,13 +401,13 @@ int PEM_ASN1_write_bio(int (*i2d)(), const char *name, BIO *bp, char *x,
i=PEM_write_bio(bp,name,buf,data,i);
if (i <= 0) ret=0;
err:
memset(key,0,sizeof(key));
memset(iv,0,sizeof(iv));
memset((char *)&ctx,0,sizeof(ctx));
memset(buf,0,PEM_BUFSIZE);
OPENSSL_cleanse(key,sizeof(key));
OPENSSL_cleanse(iv,sizeof(iv));
OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
OPENSSL_cleanse(buf,PEM_BUFSIZE);
if (data != NULL)
{
memset(data,0,(unsigned int)dsize);
OPENSSL_cleanse(data,(unsigned int)dsize);
OPENSSL_free(data);
}
return(ret);
@ -447,8 +447,8 @@ int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen,
EVP_DecryptUpdate(&ctx,data,&i,data,j);
o=EVP_DecryptFinal(&ctx,&(data[i]),&j);
EVP_CIPHER_CTX_cleanup(&ctx);
memset((char *)buf,0,sizeof(buf));
memset((char *)key,0,sizeof(key));
OPENSSL_cleanse((char *)buf,sizeof(buf));
OPENSSL_cleanse((char *)key,sizeof(key));
j+=i;
if (!o)
{

2
crypto/pem/pem_seal.c
View file

@ -109,7 +109,7 @@ int PEM_SealInit(PEM_ENCODE_SEAL_CTX *ctx, EVP_CIPHER *type, EVP_MD *md_type,
ret=npubk;
err:
if (s != NULL) OPENSSL_free(s);
memset(key,0,EVP_MAX_KEY_LENGTH);
OPENSSL_cleanse(key,EVP_MAX_KEY_LENGTH);
return(ret);
}

4
crypto/pkcs12/p12_crpt.c
View file

@ -118,7 +118,7 @@ int PKCS12_PBE_keyivgen (EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
}
PBEPARAM_free(pbe);
EVP_CipherInit(ctx, cipher, key, iv, en_de);
memset(key, 0, EVP_MAX_KEY_LENGTH);
memset(iv, 0, EVP_MAX_IV_LENGTH);
OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
return 1;
}

2
crypto/pkcs12/p12_decr.c
View file

@ -137,7 +137,7 @@ char * PKCS12_decrypt_d2i (X509_ALGOR *algor, char * (*d2i)(),
if (seq & 1) ret = (char *) d2i_ASN1_SET(NULL, &p, outlen, d2i,
free_func, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL);
else ret = d2i(NULL, &p, outlen);
if (seq & 2) memset(out, 0, outlen);
if (seq & 2) OPENSSL_cleanse(out, outlen);
if(!ret) PKCS12err(PKCS12_F_PKCS12_DECRYPT_D2I,PKCS12_R_DECODE_ERROR);
OPENSSL_free (out);
return ret;

2
crypto/pkcs12/p12_key.c
View file

@ -91,7 +91,7 @@ int PKCS12_key_gen_asc(const char *pass, int passlen, unsigned char *salt,
ret = PKCS12_key_gen_uni(unipass, uniplen, salt, saltlen,
id, iter, n, out, md_type);
if(unipass) {
memset(unipass, 0, uniplen); /* Clear password from memory */
OPENSSL_cleanse(unipass, uniplen); /* Clear password from memory */
OPENSSL_free(unipass);
}
return ret;

2
crypto/pkcs7/bio_ber.c
View file

@ -145,7 +145,7 @@ static int ber_free(BIO *a)
if (a == NULL) return(0);
b=(BIO_BER_CTX *)a->ptr;
memset(a->ptr,0,sizeof(BIO_BER_CTX));
OPENSSL_cleanse(a->ptr,sizeof(BIO_BER_CTX));
OPENSSL_free(a->ptr);
a->ptr=NULL;
a->init=0;

4
crypto/pkcs7/pk7_doit.c
View file

@ -241,7 +241,7 @@ BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio)
M_ASN1_OCTET_STRING_set(ri->enc_key,tmp,jj);
}
OPENSSL_free(tmp);
memset(key, 0, keylen);
OPENSSL_cleanse(key, keylen);
if (out == NULL)
out=btmp;
@ -448,7 +448,7 @@ BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert)
}
EVP_CipherInit(evp_ctx,NULL,tmp,NULL,0);
memset(tmp,0,jj);
OPENSSL_cleanse(tmp,jj);
if (out == NULL)
out=etmp;

4
crypto/rand/md_rand.c
View file

@ -177,10 +177,10 @@ RAND_METHOD *RAND_SSLeay(void)
static void ssleay_rand_cleanup(void)
{
memset(state,0,sizeof(state));
OPENSSL_cleanse(state,sizeof(state));
state_num=0;
state_index=0;
memset(md,0,MD_DIGEST_LENGTH);
OPENSSL_cleanse(md,MD_DIGEST_LENGTH);
md_count[0]=0;
md_count[1]=0;
entropy=0;

4
crypto/rand/randfile.c
View file

@ -125,7 +125,7 @@ int RAND_load_file(const char *file, long bytes)
}
}
fclose(in);
memset(buf,0,BUFSIZE);
OPENSSL_cleanse(buf,BUFSIZE);
err:
return(ret);
}
@ -190,7 +190,7 @@ int RAND_write_file(const char *file)
#endif /* VMS */
fclose(out);
memset(buf,0,BUFSIZE);
OPENSSL_cleanse(buf,BUFSIZE);
err:
return (rand_err ? -1 : ret);
}

4
crypto/rc4/rc4.c
View file

@ -155,7 +155,7 @@ bad:
i=EVP_read_pw_string(buf,BUFSIZ,"Enter RC4 password:",0);
if (i != 0)
{
memset(buf,0,BUFSIZ);
OPENSSL_cleanse(buf,BUFSIZ);
fprintf(stderr,"bad password read\n");
exit(1);
}
@ -163,7 +163,7 @@ bad:
}
MD5((unsigned char *)keystr,(unsigned long)strlen(keystr),md);
memset(keystr,0,strlen(keystr));
OPENSSL_cleanse(keystr,strlen(keystr));
RC4_set_key(&key,MD5_DIGEST_LENGTH,md);
for(;;)

2
crypto/ripemd/rmd_one.c
View file

@ -70,7 +70,7 @@ unsigned char *RIPEMD160(const unsigned char *d, unsigned long n,
RIPEMD160_Init(&c);
RIPEMD160_Update(&c,d,n);
RIPEMD160_Final(md,&c);
memset(&c,0,sizeof(c)); /* security consideration */
OPENSSL_cleanse(&c,sizeof(c)); /* security consideration */
return(md);
}

8
crypto/rsa/rsa_eay.c
View file

@ -184,7 +184,7 @@ err:
BN_clear_free(&ret);
if (buf != NULL)
{
memset(buf,0,num);
OPENSSL_cleanse(buf,num);
OPENSSL_free(buf);
}
return(r);
@ -268,7 +268,7 @@ err:
BN_clear_free(&f);
if (buf != NULL)
{
memset(buf,0,num);
OPENSSL_cleanse(buf,num);
OPENSSL_free(buf);
}
return(r);
@ -367,7 +367,7 @@ err:
BN_clear_free(&ret);
if (buf != NULL)
{
memset(buf,0,num);
OPENSSL_cleanse(buf,num);
OPENSSL_free(buf);
}
return(r);
@ -464,7 +464,7 @@ err:
BN_clear_free(&ret);
if (buf != NULL)
{
memset(buf,0,num);
OPENSSL_cleanse(buf,num);
OPENSSL_free(buf);
}
return(r);

4
crypto/rsa/rsa_saos.c
View file

@ -95,7 +95,7 @@ int RSA_sign_ASN1_OCTET_STRING(int type, unsigned char *m, unsigned int m_len,
else
*siglen=i;
memset(s,0,(unsigned int)j+1);
OPENSSL_cleanse(s,(unsigned int)j+1);
OPENSSL_free(s);
return(ret);
}
@ -137,7 +137,7 @@ int RSA_verify_ASN1_OCTET_STRING(int dtype, unsigned char *m,
ret=1;
err:
if (sig != NULL) M_ASN1_OCTET_STRING_free(sig);
memset(s,0,(unsigned int)siglen);
OPENSSL_cleanse(s,(unsigned int)siglen);
OPENSSL_free(s);
return(ret);
}

4
crypto/rsa/rsa_sign.c
View file

@ -131,7 +131,7 @@ int RSA_sign(int type, unsigned char *m, unsigned int m_len,
*siglen=i;
if(type != NID_md5_sha1) {
memset(s,0,(unsigned int)j+1);
OPENSSL_cleanse(s,(unsigned int)j+1);
OPENSSL_free(s);
}
return(ret);
@ -214,7 +214,7 @@ int RSA_verify(int dtype, unsigned char *m, unsigned int m_len,
}
err:
if (sig != NULL) X509_SIG_free(sig);
memset(s,0,(unsigned int)siglen);
OPENSSL_cleanse(s,(unsigned int)siglen);
OPENSSL_free(s);
return(ret);
}

2
crypto/sha/sha1_one.c
View file

@ -70,7 +70,7 @@ unsigned char *SHA1(const unsigned char *d, unsigned long n, unsigned char *md)
SHA1_Init(&c);
SHA1_Update(&c,d,n);
SHA1_Final(md,&c);
memset(&c,0,sizeof(c));
OPENSSL_cleanse(&c,sizeof(c));
return(md);
}
#endif

2
crypto/sha/sha_one.c
View file

@ -70,7 +70,7 @@ unsigned char *SHA(const unsigned char *d, unsigned long n, unsigned char *md)
SHA_Init(&c);
SHA_Update(&c,d,n);
SHA_Final(md,&c);
memset(&c,0,sizeof(c));
OPENSSL_cleanse(&c,sizeof(c));
return(md);
}
#endif

2
crypto/x509/x509_vfy.c
View file

@ -897,7 +897,7 @@ void X509_STORE_CTX_cleanup(X509_STORE_CTX *ctx)
ctx->chain=NULL;
}
CRYPTO_free_ex_data(x509_store_ctx_method,ctx,&(ctx->ex_data));
memset(&ctx->ex_data,0,sizeof(CRYPTO_EX_DATA));
OPENSSL_cleanse(&ctx->ex_data,sizeof(CRYPTO_EX_DATA));
}
void X509_STORE_CTX_set_flags(X509_STORE_CTX *ctx, long flags)

2
ssl/s2_lib.c
View file

@ -307,7 +307,7 @@ void ssl2_free(SSL *s)
s2=s->s2;
if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf);
if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf);
memset(s2,0,sizeof *s2);
OPENSSL_cleanse(s2,sizeof *s2);
OPENSSL_free(s2);
s->s2=NULL;
}

2
ssl/s3_clnt.c
View file

@ -1461,7 +1461,7 @@ static int ssl3_send_client_key_exchange(SSL *s)
s->method->ssl3_enc->generate_master_secret(s,
s->session->master_key,
tmp_buf,SSL_MAX_MASTER_KEY_LENGTH);
memset(tmp_buf,0,SSL_MAX_MASTER_KEY_LENGTH);
OPENSSL_cleanse(tmp_buf,SSL_MAX_MASTER_KEY_LENGTH);
}
else
#endif

8
ssl/s3_enc.c
View file

@ -174,7 +174,7 @@ static void ssl3_generate_key_block(SSL *s, unsigned char *km, int num)
km+=MD5_DIGEST_LENGTH;
}
memset(smd,0,SHA_DIGEST_LENGTH);
OPENSSL_cleanse(smd,SHA_DIGEST_LENGTH);
}
int ssl3_change_cipher_state(SSL *s, int which)
@ -318,8 +318,8 @@ int ssl3_change_cipher_state(SSL *s, int which)
EVP_CipherInit(dd,c,key,iv,(which & SSL3_CC_WRITE));
memset(&(exp_key[0]),0,sizeof(exp_key));
memset(&(exp_iv[0]),0,sizeof(exp_iv));
OPENSSL_cleanse(&(exp_key[0]),sizeof(exp_key));
OPENSSL_cleanse(&(exp_iv[0]),sizeof(exp_iv));
return(1);
err:
SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE);
@ -390,7 +390,7 @@ void ssl3_cleanup_key_block(SSL *s)
{
if (s->s3->tmp.key_block != NULL)
{
memset(s->s3->tmp.key_block,0,
OPENSSL_cleanse(s->s3->tmp.key_block,
s->s3->tmp.key_block_length);
OPENSSL_free(s->s3->tmp.key_block);
s->s3->tmp.key_block=NULL;

2
ssl/s3_lib.c
View file

@ -732,7 +732,7 @@ void ssl3_free(SSL *s)
#endif
if (s->s3->tmp.ca_names != NULL)
sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
memset(s->s3,0,sizeof *s->s3);
OPENSSL_cleanse(s->s3,sizeof *s->s3);
OPENSSL_free(s->s3);
s->s3=NULL;
}

2
ssl/s3_srvr.c
View file

@ -1534,7 +1534,7 @@ static int ssl3_get_client_key_exchange(SSL *s)
s->session->master_key_length=
s->method->ssl3_enc->generate_master_secret(s,
s->session->master_key,p,i);
memset(p,0,i);
OPENSSL_cleanse(p,i);
}
else
#endif

8
ssl/ssl_sess.c
View file

@ -477,13 +477,13 @@ void SSL_SESSION_free(SSL_SESSION *ss)
CRYPTO_free_ex_data(ssl_session_meth,ss,&ss->ex_data);
memset(ss->key_arg,0,SSL_MAX_KEY_ARG_LENGTH);
memset(ss->master_key,0,SSL_MAX_MASTER_KEY_LENGTH);
memset(ss->session_id,0,SSL_MAX_SSL_SESSION_ID_LENGTH);
OPENSSL_cleanse(ss->key_arg,SSL_MAX_KEY_ARG_LENGTH);
OPENSSL_cleanse(ss->master_key,SSL_MAX_MASTER_KEY_LENGTH);
OPENSSL_cleanse(ss->session_id,SSL_MAX_SSL_SESSION_ID_LENGTH);
if (ss->sess_cert != NULL) ssl_sess_cert_free(ss->sess_cert);
if (ss->peer != NULL) X509_free(ss->peer);
if (ss->ciphers != NULL) sk_SSL_CIPHER_free(ss->ciphers);
memset(ss,0,sizeof(*ss));
OPENSSL_cleanse(ss,sizeof(*ss));
OPENSSL_free(ss);
}

12
ssl/t1_enc.c
View file

@ -158,7 +158,7 @@ static void tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
}
HMAC_cleanup(&ctx);
HMAC_cleanup(&ctx_tmp);
memset(A1,0,sizeof(A1));
OPENSSL_cleanse(A1,sizeof(A1));
}
static void tls1_PRF(const EVP_MD *md5, const EVP_MD *sha1,
@ -372,10 +372,10 @@ printf("\niv=");
printf("\n");
#endif
memset(tmp1,0,sizeof(tmp1));
memset(tmp2,0,sizeof(tmp1));
memset(iv1,0,sizeof(iv1));
memset(iv2,0,sizeof(iv2));
OPENSSL_cleanse(tmp1,sizeof(tmp1));
OPENSSL_cleanse(tmp2,sizeof(tmp1));
OPENSSL_cleanse(iv1,sizeof(iv1));
OPENSSL_cleanse(iv2,sizeof(iv2));
return(1);
err:
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE);
@ -426,7 +426,7 @@ printf("pre-master\n");
{ int z; for (z=0; z<s->session->master_key_length; z++) printf("%02X%c",s->session->master_key[z],((z+1)%16)?' ':'\n'); }
#endif
tls1_generate_key_block(s,p1,p2,num);
memset(p2,0,num);
OPENSSL_cleanse(p2,num);
OPENSSL_free(p2);
#ifdef TLS_DEBUG
printf("\nkey block\n");