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argon2: let fill_memory_blocks() accept a pass counter

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This commit is contained in:
Frank Denis 2017-11-08 12:53:37 +01:00
parent 06f5c9a773
commit 8ab638b983
3 changed files with 18 additions and 15 deletions
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24
src/libsodium/crypto_pwhash/argon2/argon2-core.c
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@ -288,27 +288,25 @@ index_alpha(const argon2_instance_t *instance,
}
void
fill_memory_blocks(argon2_instance_t *instance)
fill_memory_blocks(argon2_instance_t *instance, uint32_t pass)
{
uint32_t r, s;
uint32_t s;
if (instance == NULL || instance->lanes == 0) {
return; /* LCOV_EXCL_LINE */
}
for (r = 0; r < instance->passes; ++r) {
for (s = 0; s < ARGON2_SYNC_POINTS; ++s) {
uint32_t l;
for (s = 0; s < ARGON2_SYNC_POINTS; ++s) {
uint32_t l;
for (l = 0; l < instance->lanes; ++l) {
argon2_position_t position;
for (l = 0; l < instance->lanes; ++l) {
argon2_position_t position;
position.pass = r;
position.lane = l;
position.slice = (uint8_t) s;
position.index = 0;
fill_segment(instance, position);
}
position.pass = pass;
position.lane = l;
position.slice = (uint8_t) s;
position.index = 0;
fill_segment(instance, position);
}
}
}

3
src/libsodium/crypto_pwhash/argon2/argon2-core.h
View File

@ -96,6 +96,7 @@ typedef struct Argon2_instance_t {
block_region *region; /* Memory region pointer */
uint64_t *pseudo_rands;
uint32_t passes; /* Number of passes */
uint32_t current_pass;
uint32_t memory_blocks; /* Number of blocks in memory */
uint32_t segment_length;
uint32_t lane_length;
@ -224,6 +225,6 @@ void fill_segment_ref(const argon2_instance_t *instance,
* @param instance Pointer to the current instance
* @return Zero if successful, -1 if memory failed to allocate
*/
void fill_memory_blocks(argon2_instance_t *instance);
void fill_memory_blocks(argon2_instance_t *instance, uint32_t pass);
#endif

6
src/libsodium/crypto_pwhash/argon2/argon2.c
View File

@ -29,6 +29,7 @@ argon2_ctx(argon2_context *context, argon2_type type)
/* 1. Validate all inputs */
int result = validate_inputs(context);
uint32_t memory_blocks, segment_length;
uint32_t pass;
argon2_instance_t instance;
if (ARGON2_OK != result) {
@ -53,6 +54,7 @@ argon2_ctx(argon2_context *context, argon2_type type)
instance.region = NULL;
instance.passes = context->t_cost;
instance.current_pass = ~ 0U;
instance.memory_blocks = memory_blocks;
instance.segment_length = segment_length;
instance.lane_length = segment_length * ARGON2_SYNC_POINTS;
@ -70,7 +72,9 @@ argon2_ctx(argon2_context *context, argon2_type type)
}
/* 4. Filling memory */
fill_memory_blocks(&instance);
for (pass = 0; pass < instance.passes; pass++) {
fill_memory_blocks(&instance, pass);
}
/* 5. Finalization */
finalize(context, &instance);