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changed key derivation function, using scrypt (from tarsnap) now instead of my own derivation function

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git@daemon.de
2014-01-16 15:25:09 +01:00
parent ce0ec4d5ec
commit 691786cc68
66 changed files with 5449 additions and 1042 deletions
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17
include/pcp/key.h
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@@ -37,6 +37,7 @@
#include "z85.h"
#include "uthash.h"
#include "jenhash.h"
#include "scrypt.h"
/*
PCP private key structure. Most fields are self explanatory.
@@ -138,20 +139,8 @@ unsigned char * pcp_gennonce();
void pcpedit_key(char *keyid);
// proprietary key derivation function. derives an
// secure encryption key from the given passphrase by
// calculating a SALSA20 hash from it HCYCLES times.
//
// turns the result into a proper CURVE25519 secret
// key. allocates memory for key and it is up to the
// user to free it after use.
//
// deprecation warning: maybe removed once the libsodium
// developers incorporated some key derivation function
// into libsodium. so far, there's none but word goes
// that perhaps something like scrypt() from the star
// distribution may be added in the future.
unsigned char *pcp_derivekey(char *passphrase);
// use scrypt() to create a key from a passphrase and a nonce
unsigned char *pcp_derivekey(char *passphrase, unsigned char *nonce);
pcp_key_t *pcp_derive_pcpkey (pcp_key_t *ours, char *theirs);