diff options
Diffstat (limited to 'source4/heimdal/lib/gssapi/krb5/wrap.c')
| -rw-r--r-- | source4/heimdal/lib/gssapi/krb5/wrap.c | 45 |
1 files changed, 29 insertions, 16 deletions
diff --git a/source4/heimdal/lib/gssapi/krb5/wrap.c b/source4/heimdal/lib/gssapi/krb5/wrap.c index 3de13f908f..9078fb3dd7 100644 --- a/source4/heimdal/lib/gssapi/krb5/wrap.c +++ b/source4/heimdal/lib/gssapi/krb5/wrap.c @@ -168,7 +168,11 @@ _gsskrb5_wrap_size_limit ( switch (keytype) { case KEYTYPE_DES : +#ifdef HEIM_WEAK_CRYPTO ret = sub_wrap_size(req_output_size, max_input_size, 8, 22); +#else + ret = GSS_S_FAILURE; +#endif break; case KEYTYPE_ARCFOUR: case KEYTYPE_ARCFOUR_56: @@ -188,6 +192,8 @@ _gsskrb5_wrap_size_limit ( return ret; } +#ifdef HEIM_WEAK_CRYPTO + static OM_uint32 wrap_des (OM_uint32 * minor_status, @@ -202,9 +208,10 @@ wrap_des ) { u_char *p; - MD5_CTX md5; + EVP_MD_CTX *md5; u_char hash[16]; DES_key_schedule schedule; + EVP_CIPHER_CTX des_ctx; DES_cblock deskey; DES_cblock zero; int i; @@ -262,10 +269,12 @@ wrap_des memset (p + 8 + input_message_buffer->length, padlength, padlength); /* checksum */ - MD5_Init (&md5); - MD5_Update (&md5, p - 24, 8); - MD5_Update (&md5, p, datalen); - MD5_Final (hash, &md5); + md5 = EVP_MD_CTX_create(); + EVP_DigestInit_ex(md5, EVP_md5(), NULL); + EVP_DigestUpdate(md5, p - 24, 8); + EVP_DigestUpdate(md5, p, datalen); + EVP_DigestFinal_ex(md5, hash, NULL); + EVP_MD_CTX_destroy(md5); memset (&zero, 0, sizeof(zero)); memcpy (&deskey, key->keyvalue.data, sizeof(deskey)); @@ -289,9 +298,10 @@ wrap_des (ctx->more_flags & LOCAL) ? 0 : 0xFF, 4); - DES_set_key_unchecked (&deskey, &schedule); - DES_cbc_encrypt ((void *)p, (void *)p, 8, - &schedule, (DES_cblock *)(p + 8), DES_ENCRYPT); + EVP_CIPHER_CTX_init(&des_ctx); + EVP_CipherInit_ex(&des_ctx, EVP_des_cbc(), NULL, key->keyvalue.data, p + 8, 1); + EVP_Cipher(&des_ctx, p, p, 8); + EVP_CIPHER_CTX_cleanup(&des_ctx); krb5_auth_con_setlocalseqnumber (context, ctx->auth_context, @@ -306,14 +316,11 @@ wrap_des for (i = 0; i < sizeof(deskey); ++i) deskey[i] ^= 0xf0; - DES_set_key_unchecked (&deskey, &schedule); - memset (&zero, 0, sizeof(zero)); - DES_cbc_encrypt ((void *)p, - (void *)p, - datalen, - &schedule, - &zero, - DES_ENCRYPT); + + EVP_CIPHER_CTX_init(&des_ctx); + EVP_CipherInit_ex(&des_ctx, EVP_des_cbc(), NULL, deskey, zero, 1); + EVP_Cipher(&des_ctx, p, p, datalen); + EVP_CIPHER_CTX_cleanup(&des_ctx); } memset (deskey, 0, sizeof(deskey)); memset (&schedule, 0, sizeof(schedule)); @@ -324,6 +331,8 @@ wrap_des return GSS_S_COMPLETE; } +#endif + static OM_uint32 wrap_des3 (OM_uint32 * minor_status, @@ -552,9 +561,13 @@ OM_uint32 _gsskrb5_wrap switch (keytype) { case KEYTYPE_DES : +#ifdef HEIM_WEAK_CRYPTO ret = wrap_des (minor_status, ctx, context, conf_req_flag, qop_req, input_message_buffer, conf_state, output_message_buffer, key); +#else + ret = GSS_S_FAILURE; +#endif break; case KEYTYPE_DES3 : ret = wrap_des3 (minor_status, ctx, context, conf_req_flag, |