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added single-block multiple encryption

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This commit is contained in:
csoler 2016-02-16 22:36:22 -05:00
parent 763108f5fa
commit 08e4c90cc2
2 changed files with 166 additions and 20 deletions
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41
libretroshare/src/gxs/gxssecurity.h
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@ -57,20 +57,20 @@ class GxsSecurity
~MultiEncryptionContext() { clear() ;}
void clear()
{
for(uint32_t i=0;i<ids.size();++i)
free(ek[i]) ;
if(ekl)
free(ekl) ;
if(ek)
free(ek) ;
ekl = NULL ;
ek = NULL ;
ids.clear() ;
}
{
for(uint32_t i=0;i<ids.size();++i)
free(ek[i]) ;
if(ekl)
free(ekl) ;
if(ek)
free(ek) ;
ekl = NULL ;
ek = NULL ;
ids.clear() ;
}
// The functions below give access to the encrypted symmetric key to be used.
//
@ -110,21 +110,22 @@ class GxsSecurity
*@param in
*@param inlen
*/
static bool encrypt(uint8_t *&out, uint32_t &outlen, const uint8_t *in, uint32_t inlen, const RsTlvSecurityKey& key) ;
static bool encrypt(uint8_t *&out, uint32_t &outlen, const uint8_t *in, uint32_t inlen, const RsTlvSecurityKey& key) ;
static bool encrypt(uint8_t *&out, uint32_t &outlen, const uint8_t *in, uint32_t inlen, const std::vector<RsTlvSecurityKey>& keys) ;
/*!
* Encrypts/decrypt data using envelope encryption using the key pre-computed in the encryption context passed as
* parameter.
*/
static bool initEncryption(MultiEncryptionContext& encryption_context, const std::vector<RsTlvSecurityKey> &keys) ;
static bool initDecryption(MultiEncryptionContext& encryption_context, const RsTlvSecurityKey& key, unsigned char *IV, uint32_t IV_size, unsigned char *encrypted_session_key, uint32_t encrypted_session_key_size) ;
static bool initEncryption(MultiEncryptionContext& encryption_context, const std::vector<RsTlvSecurityKey> &keys) ;
static bool initDecryption(MultiEncryptionContext& encryption_context, const RsTlvSecurityKey& key, unsigned char *IV, uint32_t IV_size, unsigned char *encrypted_session_key, uint32_t encrypted_session_key_size) ;
/*!
* Encrypts/decrypt data using envelope encryption using the key pre-computed in the encryption context passed as
* parameter.
*/
static bool encrypt(uint8_t *&out, uint32_t &outlen, const uint8_t *in, uint32_t inlen, MultiEncryptionContext& encryption_context) ;
static bool decrypt(uint8_t *&out, uint32_t &outlen, const uint8_t *in, uint32_t inlen, MultiEncryptionContext& encryption_context) ;
static bool encrypt(uint8_t *&out, uint32_t &outlen, const uint8_t *in, uint32_t inlen, MultiEncryptionContext& encryption_context) ;
static bool decrypt(uint8_t *&out, uint32_t &outlen, const uint8_t *in, uint32_t inlen, MultiEncryptionContext& encryption_context) ;
/**
* Decrypts data using evelope decryption (taken from open ssl's evp_sealinit )
@ -135,7 +136,7 @@ class GxsSecurity
* @param inlen
* @return false if encryption failed
*/
static bool decrypt(uint8_t *&out, uint32_t &outlen, const uint8_t *in, uint32_t inlen, const RsTlvSecurityKey& key) ;
static bool decrypt(uint8_t *&out, uint32_t &outlen, const uint8_t *in, uint32_t inlen, const RsTlvSecurityKey& key) ;
/*!
* uses grp signature to check if group has been