/*
* COPYRIGHT (c) International Business Machines Corp. 2001-2017
*
* This program is provided under the terms of the Common Public License,
* version 1.0 (CPL-1.0). Any use, reproduction or distribution for this
* software constitutes recipient's acceptance of CPL-1.0 terms which can be
* found in the file LICENSE file or at
* https://opensource.org/licenses/cpl1.0.php
*/
// File: decr_mgr.c
//
// Decryption manager routines
//
#include <pthread.h>
#include <string.h> // for memcmp() et al
#include <stdlib.h>
#include "pkcs11types.h"
#include "defs.h"
#include "host_defs.h"
#include "h_extern.h"
#include "tok_spec_struct.h"
#include "trace.h"
//
//
CK_RV decr_mgr_init(STDLL_TokData_t *tokdata,
SESSION *sess,
ENCR_DECR_CONTEXT *ctx,
CK_ULONG operation,
CK_MECHANISM *mech, CK_OBJECT_HANDLE key_handle)
{
OBJECT *key_obj = NULL;
CK_ATTRIBUTE *attr = NULL;
CK_BYTE *ptr = NULL;
CK_KEY_TYPE keytype;
CK_BBOOL flag;
CK_RV rc;
if (!sess) {
TRACE_ERROR("Invalid function arguments.\n");
return CKR_FUNCTION_FAILED;
}
if (ctx->active != FALSE) {
TRACE_ERROR("%s\n", ock_err(ERR_OPERATION_ACTIVE));
return CKR_OPERATION_ACTIVE;
}
// key usage restrictions
//
if (operation == OP_DECRYPT_INIT) {
rc = object_mgr_find_in_map1(tokdata, key_handle, &key_obj, READ_LOCK);
if (rc != CKR_OK) {
TRACE_ERROR("Failed to acquire key from specified handle.\n");
if (rc == CKR_OBJECT_HANDLE_INVALID)
return CKR_KEY_HANDLE_INVALID;
else
return rc;
}
// is key allowed to do general decryption?
//
rc = template_attribute_find(key_obj->template, CKA_DECRYPT, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_ENCRYPT for the key.\n");
rc = CKR_KEY_FUNCTION_NOT_PERMITTED;
goto done;
} else {
flag = *(CK_BBOOL *) attr->pValue;
if (flag != TRUE) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_FUNCTION_NOT_PERMITTED));
rc = CKR_KEY_FUNCTION_NOT_PERMITTED;
goto done;
}
}
} else if (operation == OP_UNWRAP) {
rc = object_mgr_find_in_map1(tokdata, key_handle, &key_obj, READ_LOCK);
if (rc != CKR_OK) {
TRACE_ERROR("Failed to acquire key from specified handle.\n");
if (rc == CKR_OBJECT_HANDLE_INVALID)
rc = CKR_WRAPPING_KEY_HANDLE_INVALID;
goto done;
}
// is key allowed to unwrap other keys?
//
rc = template_attribute_find(key_obj->template, CKA_UNWRAP, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_UNWRAP for the key.\n");
rc = CKR_KEY_FUNCTION_NOT_PERMITTED;
goto done;
} else {
flag = *(CK_BBOOL *) attr->pValue;
if (flag == FALSE) {
TRACE_ERROR("CKA_UNWRAP is set to FALSE.\n");
rc = CKR_KEY_FUNCTION_NOT_PERMITTED;
goto done;
}
}
} else {
TRACE_ERROR("%s\n", ock_err(ERR_FUNCTION_FAILED));
rc = CKR_FUNCTION_FAILED;
goto done;
}
// is the mechanism supported? is the key type correct? is a
// parameter present if required? is the key size allowed?
// does the key support decryption?
//
// Will the FCV allow the operation?
//
switch (mech->mechanism) {
case CKM_DES_ECB:
if (mech->ulParameterLen != 0) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
// is the key type correct?
//
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_DES) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
// Check FCV
//
// if ((nv_FCV.FunctionCntlBytes[DES_FUNCTION_BYTE]
// & FCV_56_BIT_DES) == 0)
// rc = CKR_MECHANISM_INVALID;
// goto done;
ctx->context_len = sizeof(DES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(DES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(DES_CONTEXT));
break;
case CKM_CDMF_ECB:
if (mech->ulParameterLen != 0) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
// is the key type correct?
//
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_CDMF) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
// Check FCV
//
// if ((nv_FCV.FunctionCntlBytes[DES_FUNCTION_BYTE]
// & FCV_CDMF_DES) == 0)
// rc = CKR_MECHANISM_INVALID;
// goto done;
ctx->context_len = sizeof(DES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(DES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(DES_CONTEXT));
break;
case CKM_DES_CBC:
case CKM_DES_CBC_PAD:
if (mech->ulParameterLen != DES_BLOCK_SIZE) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
// is the key type correct?
//
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_DES) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
// Check FCV
//
// if ((nv_FCV.FunctionCntlBytes[DES_FUNCTION_BYTE]
// & FCV_56_BIT_DES) == 0)
// rc = CKR_MECHANISM_INVALID;
// goto done;
ctx->context_len = sizeof(DES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(DES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(DES_CONTEXT));
break;
case CKM_CDMF_CBC:
case CKM_CDMF_CBC_PAD:
if (mech->ulParameterLen != DES_BLOCK_SIZE) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
// is the key type correct?
//
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_CDMF) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
ctx->context_len = sizeof(DES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(DES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(DES_CONTEXT));
break;
case CKM_DES_CFB8:
case CKM_DES_CFB64:
case CKM_DES_OFB64:
if (mech->ulParameterLen != DES_BLOCK_SIZE) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if ((keytype != CKK_DES3)) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
ctx->context_len = sizeof(DES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(DES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(DES_CONTEXT));
break;
case CKM_DES3_ECB:
if (mech->ulParameterLen != 0) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
// is the key type correct?
//
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_DES3 && keytype != CKK_DES2) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
// Check FCV
//
// if ((nv_FCV.FunctionCntlBytes[DES_FUNCTION_BYTE]
// & FCV_TRIPLE_DES) == 0)
// rc = CKR_MECHANISM_INVALID;
// goto done;
ctx->context_len = sizeof(DES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(DES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(DES_CONTEXT));
break;
case CKM_DES3_CBC:
case CKM_DES3_CBC_PAD:
if (mech->ulParameterLen != DES_BLOCK_SIZE) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
// is the key type correct?
//
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_DES3 && keytype != CKK_DES2) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
// Check FCV
//
// if ((nv_FCV.FunctionCntlBytes[DES_FUNCTION_BYTE]
// & FCV_TRIPLE_DES) == 0)
// rc = CKR_MECHANISM_INVALID;
// goto done;
ctx->context_len = sizeof(DES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(DES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(DES_CONTEXT));
break;
case CKM_RSA_PKCS_OAEP:
if (mech->ulParameterLen == 0) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
}
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_RSA) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
// RSA cannot be used for multi-part operations
//
ctx->context_len = 0;
ctx->context = NULL;
break;
case CKM_RSA_X_509:
case CKM_RSA_PKCS:
if (mech->ulParameterLen != 0) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_RSA) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
// RSA cannot be used for multi-part operations
//
ctx->context_len = 0;
ctx->context = NULL;
break;
case CKM_AES_ECB:
// XXX Copied from DES3, should be verified - KEY
if (mech->ulParameterLen != 0) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
// is the key type correct?
//
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_AES) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
ctx->context_len = sizeof(AES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(AES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(AES_CONTEXT));
break;
case CKM_AES_CBC:
case CKM_AES_CBC_PAD:
// XXX Copied from DES3, should be verified - KEY
if (mech->ulParameterLen != AES_INIT_VECTOR_SIZE) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
// is the key type correct?
//
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_AES) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
ctx->context_len = sizeof(AES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(AES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(AES_CONTEXT));
break;
case CKM_AES_CTR:
if (mech->ulParameterLen != sizeof(CK_AES_CTR_PARAMS)) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
// is the key type correct?
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_AES) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
ctx->context_len = sizeof(AES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(AES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(AES_CONTEXT));
break;
case CKM_AES_GCM:
if (mech->ulParameterLen != sizeof(CK_GCM_PARAMS)) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_AES) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
ctx->context_len = sizeof(AES_GCM_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(AES_GCM_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(AES_GCM_CONTEXT));
rc = aes_gcm_init(tokdata, sess, ctx, mech, key_handle, 0);
if (rc) {
TRACE_ERROR("Could not initialize AES_GCM parms.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
}
break;
case CKM_AES_OFB:
case CKM_AES_CFB8:
case CKM_AES_CFB64:
case CKM_AES_CFB128:
if (mech->ulParameterLen != AES_INIT_VECTOR_SIZE) {
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_PARAM_INVALID;
goto done;
}
rc = template_attribute_find(key_obj->template, CKA_KEY_TYPE, &attr);
if (rc == FALSE) {
TRACE_ERROR("Could not find CKA_KEY_TYPE for the key.\n");
rc = CKR_FUNCTION_FAILED;
goto done;
} else {
keytype = *(CK_KEY_TYPE *) attr->pValue;
if (keytype != CKK_AES) {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
rc = CKR_KEY_TYPE_INCONSISTENT;
goto done;
}
}
ctx->context_len = sizeof(AES_CONTEXT);
ctx->context = (CK_BYTE *) malloc(sizeof(AES_CONTEXT));
if (!ctx->context) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memset(ctx->context, 0x0, sizeof(AES_CONTEXT));
break;
default:
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
rc = CKR_MECHANISM_INVALID;
goto done;
}
if (mech->ulParameterLen > 0 && mech->pParameter != NULL) {
ptr = (CK_BYTE *) malloc(mech->ulParameterLen);
if (!ptr) {
TRACE_ERROR("%s\n", ock_err(ERR_HOST_MEMORY));
rc = CKR_HOST_MEMORY;
goto done;
}
memcpy(ptr, mech->pParameter, mech->ulParameterLen);
}
ctx->key = key_handle;
ctx->mech.ulParameterLen = mech->ulParameterLen;
ctx->mech.mechanism = mech->mechanism;
ctx->mech.pParameter = ptr;
ctx->multi_init = FALSE;
ctx->multi = FALSE;
ctx->active = TRUE;
rc = CKR_OK;
done:
object_put(tokdata, key_obj, TRUE);
key_obj = NULL;
return rc;
}
//
//
CK_RV decr_mgr_cleanup(ENCR_DECR_CONTEXT *ctx)
{
if (!ctx) {
TRACE_ERROR("Invalid function argument.\n");
return CKR_FUNCTION_FAILED;
}
ctx->key = 0;
ctx->mech.ulParameterLen = 0;
ctx->mech.mechanism = 0;
ctx->multi_init = FALSE;
ctx->multi = FALSE;
ctx->active = FALSE;
ctx->init_pending = FALSE;
ctx->context_len = 0;
if (ctx->mech.pParameter) {
free(ctx->mech.pParameter);
ctx->mech.pParameter = NULL;
}
if (ctx->context) {
free(ctx->context);
ctx->context = NULL;
}
return CKR_OK;
}
//
//
CK_RV decr_mgr_decrypt(STDLL_TokData_t *tokdata,
SESSION *sess,
CK_BBOOL length_only,
ENCR_DECR_CONTEXT *ctx,
CK_BYTE *in_data,
CK_ULONG in_data_len,
CK_BYTE *out_data, CK_ULONG *out_data_len)
{
CK_KEY_TYPE keytype;
if (!sess || !ctx) {
TRACE_ERROR("Invalid function arguments.\n");
return CKR_FUNCTION_FAILED;
}
if (ctx->active == FALSE) {
TRACE_ERROR("%s\n", ock_err(ERR_OPERATION_NOT_INITIALIZED));
return CKR_OPERATION_NOT_INITIALIZED;
}
if (ctx->multi_init == FALSE) {
ctx->multi = FALSE;
ctx->multi_init = TRUE;
}
// if the caller just wants the decrypted length, there is no reason to
// specify the input data. I just need the data length
//
if ((length_only == FALSE) && (!in_data || !out_data)) {
TRACE_ERROR("%s\n", ock_err(ERR_FUNCTION_FAILED));
return CKR_FUNCTION_FAILED;
}
if (ctx->multi == TRUE) {
TRACE_ERROR("%s\n", ock_err(ERR_OPERATION_ACTIVE));
return CKR_OPERATION_ACTIVE;
}
switch (ctx->mech.mechanism) {
case CKM_CDMF_ECB:
case CKM_DES_ECB:
return des_ecb_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len, out_data, out_data_len);
case CKM_CDMF_CBC:
case CKM_DES_CBC:
return des_cbc_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len, out_data, out_data_len);
case CKM_DES_CBC_PAD:
case CKM_CDMF_CBC_PAD:
return des_cbc_pad_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_DES_OFB64:
get_keytype(tokdata, ctx->key, &keytype);
if (keytype == CKK_DES3) {
return des3_ofb_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
} else {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
return CKR_KEY_TYPE_INCONSISTENT;
}
case CKM_DES_CFB8:
get_keytype(tokdata, ctx->key, &keytype);
if (keytype == CKK_DES3) {
return des3_cfb_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len, 0x01);
} else {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
return CKR_KEY_TYPE_INCONSISTENT;
}
case CKM_DES_CFB64:
get_keytype(tokdata, ctx->key, &keytype);
if (keytype == CKK_DES3) {
return des3_cfb_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len, 0x08);
} else {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
return CKR_KEY_TYPE_INCONSISTENT;
}
case CKM_DES3_ECB:
return des3_ecb_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len, out_data, out_data_len);
case CKM_DES3_CBC:
return des3_cbc_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len, out_data, out_data_len);
case CKM_DES3_CBC_PAD:
return des3_cbc_pad_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_RSA_PKCS:
return rsa_pkcs_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len, out_data, out_data_len);
case CKM_RSA_PKCS_OAEP:
return rsa_oaep_crypt(tokdata, sess, length_only, ctx, in_data,
in_data_len, out_data, out_data_len, DECRYPT);
case CKM_RSA_X_509:
return rsa_x509_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len, out_data, out_data_len);
#ifndef NOAES
case CKM_AES_CBC:
return aes_cbc_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len, out_data, out_data_len);
case CKM_AES_ECB:
return aes_ecb_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len, out_data, out_data_len);
case CKM_AES_CBC_PAD:
return aes_cbc_pad_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_AES_CTR:
return aes_ctr_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len, out_data, out_data_len);
case CKM_AES_GCM:
return aes_gcm_decrypt(tokdata, sess, length_only, ctx, in_data,
in_data_len, out_data, out_data_len);
case CKM_AES_OFB:
return aes_ofb_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len, out_data, out_data_len);
case CKM_AES_CFB8:
return aes_cfb_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len, 0x01);
case CKM_AES_CFB64:
return aes_cfb_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len, 0x08);
case CKM_AES_CFB128:
return aes_cfb_decrypt(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len, 0x10);
#endif
default:
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_PARAM_INVALID));
return CKR_MECHANISM_INVALID;
}
TRACE_ERROR("%s\n", ock_err(ERR_FUNCTION_FAILED));
return CKR_FUNCTION_FAILED;
}
//
//
CK_RV decr_mgr_decrypt_update(STDLL_TokData_t *tokdata,
SESSION *sess,
CK_BBOOL length_only,
ENCR_DECR_CONTEXT *ctx,
CK_BYTE *in_data,
CK_ULONG in_data_len,
CK_BYTE *out_data, CK_ULONG *out_data_len)
{
CK_KEY_TYPE keytype;
if (!sess || !ctx) {
TRACE_ERROR("Invalid function arguments.\n");
return CKR_FUNCTION_FAILED;
}
if (!out_data && !length_only) {
TRACE_ERROR("%s\n", ock_err(ERR_FUNCTION_FAILED));
return CKR_FUNCTION_FAILED;
}
if (ctx->active == FALSE) {
TRACE_ERROR("%s\n", ock_err(ERR_OPERATION_NOT_INITIALIZED));
return CKR_OPERATION_NOT_INITIALIZED;
}
if (ctx->multi_init == FALSE) {
ctx->multi = TRUE;
ctx->multi_init = TRUE;
}
if (ctx->multi == FALSE) {
TRACE_ERROR("%s\n", ock_err(ERR_OPERATION_ACTIVE));
return CKR_OPERATION_ACTIVE;
}
switch (ctx->mech.mechanism) {
case CKM_CDMF_ECB:
case CKM_DES_ECB:
return des_ecb_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_CDMF_CBC:
case CKM_DES_CBC:
return des_cbc_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_DES_CBC_PAD:
case CKM_CDMF_CBC_PAD:
return des_cbc_pad_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_DES_OFB64:
get_keytype(tokdata, ctx->key, &keytype);
if (keytype == CKK_DES3) {
return des3_ofb_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
} else {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
return CKR_KEY_TYPE_INCONSISTENT;
}
case CKM_DES_CFB8:
get_keytype(tokdata, ctx->key, &keytype);
if (keytype == CKK_DES3) {
return des3_cfb_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len, 0x01);
} else {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
return CKR_KEY_TYPE_INCONSISTENT;
}
case CKM_DES_CFB64:
get_keytype(tokdata, ctx->key, &keytype);
if (keytype == CKK_DES3) {
return des3_cfb_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len, 0x08);
} else {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
return CKR_KEY_TYPE_INCONSISTENT;
}
case CKM_DES3_ECB:
return des3_ecb_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_DES3_CBC:
return des3_cbc_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_DES3_CBC_PAD:
return des3_cbc_pad_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
#ifndef NOAES
case CKM_AES_ECB:
return aes_ecb_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_AES_CBC:
return aes_cbc_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_AES_CBC_PAD:
return aes_cbc_pad_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_AES_CTR:
return aes_ctr_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_AES_GCM:
return aes_gcm_decrypt_update(tokdata, sess, length_only, ctx,
in_data, in_data_len, out_data,
out_data_len);
case CKM_AES_OFB:
return aes_ofb_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len);
case CKM_AES_CFB8:
return aes_cfb_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len, 0x01);
case CKM_AES_CFB64:
return aes_cfb_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len, 0x08);
case CKM_AES_CFB128:
return aes_cfb_decrypt_update(tokdata, sess, length_only,
ctx,
in_data, in_data_len,
out_data, out_data_len, 0x10);
#endif
default:
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_INVALID));
return CKR_MECHANISM_INVALID;
}
TRACE_ERROR("%s\n", ock_err(ERR_FUNCTION_FAILED));
return CKR_FUNCTION_FAILED;
}
//
//
CK_RV decr_mgr_decrypt_final(STDLL_TokData_t *tokdata,
SESSION *sess,
CK_BBOOL length_only,
ENCR_DECR_CONTEXT *ctx,
CK_BYTE *out_data, CK_ULONG *out_data_len)
{
CK_KEY_TYPE keytype;
if (!sess || !ctx) {
TRACE_ERROR("Invalid function arguments.\n");
return CKR_FUNCTION_FAILED;
}
if (ctx->active == FALSE) {
TRACE_ERROR("%s\n", ock_err(ERR_OPERATION_NOT_INITIALIZED));
return CKR_OPERATION_NOT_INITIALIZED;
}
if (ctx->multi_init == FALSE) {
ctx->multi = TRUE;
ctx->multi_init = TRUE;
}
if (ctx->multi == FALSE) {
TRACE_ERROR("%s\n", ock_err(ERR_OPERATION_ACTIVE));
return CKR_OPERATION_ACTIVE;
}
switch (ctx->mech.mechanism) {
case CKM_CDMF_ECB:
case CKM_DES_ECB:
return des_ecb_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
case CKM_CDMF_CBC:
case CKM_DES_CBC:
return des_cbc_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
case CKM_DES_CBC_PAD:
case CKM_CDMF_CBC_PAD:
return des_cbc_pad_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
case CKM_DES_OFB64:
get_keytype(tokdata, ctx->key, &keytype);
if (keytype == CKK_DES3) {
return des3_ofb_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
} else {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
return CKR_KEY_TYPE_INCONSISTENT;
}
case CKM_DES_CFB8:
get_keytype(tokdata, ctx->key, &keytype);
if (keytype == CKK_DES3) {
return des3_cfb_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len, 0x01);
} else {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
return CKR_KEY_TYPE_INCONSISTENT;
}
case CKM_DES_CFB64:
get_keytype(tokdata, ctx->key, &keytype);
if (keytype == CKK_DES3) {
return des3_cfb_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len, 0x08);
} else {
TRACE_ERROR("%s\n", ock_err(ERR_KEY_TYPE_INCONSISTENT));
return CKR_KEY_TYPE_INCONSISTENT;
}
case CKM_DES3_ECB:
return des3_ecb_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
case CKM_DES3_CBC:
return des3_cbc_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
case CKM_DES3_CBC_PAD:
return des3_cbc_pad_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
#ifndef NOAES
case CKM_AES_ECB:
return aes_ecb_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
case CKM_AES_CBC:
return aes_cbc_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
case CKM_AES_CBC_PAD:
return aes_cbc_pad_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
case CKM_AES_OFB:
return aes_ofb_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
case CKM_AES_CFB8:
return aes_cfb_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len, 0x01);
case CKM_AES_CFB64:
return aes_cfb_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len, 0x08);
case CKM_AES_CFB128:
return aes_cfb_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len, 0x10);
case CKM_AES_CTR:
return aes_ctr_decrypt_final(tokdata, sess, length_only,
ctx, out_data, out_data_len);
case CKM_AES_GCM:
return aes_gcm_decrypt_final(tokdata, sess, length_only, ctx,
out_data, out_data_len);
#endif
default:
TRACE_ERROR("%s\n", ock_err(ERR_MECHANISM_INVALID));
return CKR_MECHANISM_INVALID;
}
TRACE_ERROR("%s\n", ock_err(ERR_FUNCTION_FAILED));
return CKR_FUNCTION_FAILED;
}