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crypt(3): document some of the memory units we're dealing with

This commit is contained in:
nia 2021-11-22 14:30:24 +00:00
parent 45639db1d3
commit 5a3dc90041
1 changed files with 3 additions and 3 deletions
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6
lib/libcrypt/crypt-argon2.c
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@ -152,10 +152,10 @@ estimate_argon2_params(argon2_type atype, uint32_t *etime,
uint32_t tmp_hash[32];
char tmp_encoded[256];
struct rlimit rlim;
uint64_t max_mem;
uint64_t max_mem; /* usermem64 returns bytes */
size_t max_mem_sz = sizeof(max_mem);
/* low values from argon2 test suite... */
uint32_t memory = 256;
uint32_t memory = 256; /* 256k; argon2 wants kilobytes */
uint32_t time = 3;
uint32_t threads = 1;
@ -177,7 +177,7 @@ estimate_argon2_params(argon2_type atype, uint32_t *etime,
* Do we need to be concerned about memory usage during
* concurrent connections?
*/
max_mem /= 1000000;
max_mem /= 1000000; /* bytes down to mb */
if (max_mem > 30000) {
memory = 32768;
} else if (max_mem > 15000) {