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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef _SECPKCS5_H_
#define _SECPKCS5_H_
#include "plarena.h"
#include "secitem.h"
#include "seccomon.h"
#include "secoidt.h"
#include "hasht.h"
typedef SECItem *(*SEC_PKCS5GetPBEPassword)(void *arg);
/* used for V2 PKCS 12 Draft Spec */
typedef enum {
pbeBitGenIDNull = 0,
pbeBitGenCipherKey = 0x01,
pbeBitGenCipherIV = 0x02,
pbeBitGenIntegrityKey = 0x03
} PBEBitGenID;
typedef enum {
NSSPKCS5_PBKDF1 = 0,
NSSPKCS5_PBKDF2 = 1,
NSSPKCS5_PKCS12_V2 = 2
} NSSPKCS5PBEType;
typedef struct NSSPKCS5PBEParameterStr NSSPKCS5PBEParameter;
struct NSSPKCS5PBEParameterStr {
PLArenaPool *poolp;
SECItem salt; /* octet string */
SECItem iteration; /* integer */
SECItem keyLength; /* integer */
/* used locally */
int iter;
int keyLen;
int ivLen;
unsigned char *ivData;
HASH_HashType hashType;
NSSPKCS5PBEType pbeType;
SECAlgorithmID prfAlg;
PBEBitGenID keyID;
SECOidTag encAlg;
PRBool is2KeyDES;
};
SEC_BEGIN_PROTOS
/* Create a PKCS5 Algorithm ID
* The algorithm ID is set up using the PKCS #5 parameter structure
* algorithm is the PBE algorithm ID for the desired algorithm
* pbe is a pbe param block with all the info needed to create the
* algorithm id.
* If an error occurs or the algorithm specified is not supported
* or is not a password based encryption algorithm, NULL is returned.
* Otherwise, a pointer to the algorithm id is returned.
*/
extern SECAlgorithmID *
nsspkcs5_CreateAlgorithmID(PLArenaPool *arena, SECOidTag algorithm,
NSSPKCS5PBEParameter *pbe);
/*
* Convert an Algorithm ID to a PBE Param.
* NOTE: this does not suppport PKCS 5 v2 because it's only used for the
* keyDB which only support PKCS 5 v1, PFX, and PKCS 12.
*/
NSSPKCS5PBEParameter *
nsspkcs5_AlgidToParam(SECAlgorithmID *algid);
/*
* Convert an Algorithm ID to a PBE Param.
* NOTE: this does not suppport PKCS 5 v2 because it's only used for the
* keyDB which only support PKCS 5 v1, PFX, and PKCS 12.
*/
NSSPKCS5PBEParameter *
nsspkcs5_NewParam(SECOidTag alg, HASH_HashType hashType, SECItem *salt,
int iterationCount);
/* Encrypt/Decrypt data using password based encryption.
* algid is the PBE algorithm identifier,
* pwitem is the password,
* src is the source for encryption/decryption,
* encrypt is PR_TRUE for encryption, PR_FALSE for decryption.
* The key and iv are generated based upon PKCS #5 then the src
* is either encrypted or decrypted. If an error occurs, NULL
* is returned, otherwise the ciphered contents is returned.
*/
extern SECItem *
nsspkcs5_CipherData(NSSPKCS5PBEParameter *, SECItem *pwitem,
SECItem *src, PRBool encrypt, PRBool *update);
extern SECItem *
nsspkcs5_ComputeKeyAndIV(NSSPKCS5PBEParameter *, SECItem *pwitem,
SECItem *iv, PRBool faulty3DES);
/* Destroys PBE parameter */
extern void
nsspkcs5_DestroyPBEParameter(NSSPKCS5PBEParameter *param);
HASH_HashType HASH_FromHMACOid(SECOidTag oid);
SEC_END_PROTOS
#endif
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