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author | ng0 <ng0@n0.is> | 2019-12-01 11:01:08 +0000 |
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committer | ng0 <ng0@n0.is> | 2019-12-01 11:01:08 +0000 |
commit | 435596a7cb2e5b9adbb8de90f3f917a61d089a1b (patch) | |
tree | ece3dacd8808923f884807ca1b8ac93fa24cfad4 /src/nse/perf_kdf.c | |
parent | 2f599ebe8ffcd76cfc92ae9fef56f397592becb5 (diff) | |
parent | 56d7341763046244bce789f1355441345711958c (diff) | |
download | gnunet-435596a7cb2e5b9adbb8de90f3f917a61d089a1b.tar.gz gnunet-435596a7cb2e5b9adbb8de90f3f917a61d089a1b.zip |
Merge branch 'master' of gnunet.org:gnunet
Diffstat (limited to 'src/nse/perf_kdf.c')
-rw-r--r-- | src/nse/perf_kdf.c | 31 |
1 files changed, 5 insertions, 26 deletions
diff --git a/src/nse/perf_kdf.c b/src/nse/perf_kdf.c index ec6dc7ff3..c5975aaf2 100644 --- a/src/nse/perf_kdf.c +++ b/src/nse/perf_kdf.c | |||
@@ -29,39 +29,18 @@ | |||
29 | #include <gauger.h> | 29 | #include <gauger.h> |
30 | 30 | ||
31 | 31 | ||
32 | /** | ||
33 | * Calculate the 'proof-of-work' hash (an expensive hash). | ||
34 | * | ||
35 | * @param buf data to hash | ||
36 | * @param buf_len number of bytes in 'buf' | ||
37 | * @param result where to write the resulting hash | ||
38 | */ | ||
39 | static void | ||
40 | pow_hash (const void *buf, | ||
41 | size_t buf_len, | ||
42 | struct GNUNET_HashCode *result) | ||
43 | { | ||
44 | GNUNET_break (0 == | ||
45 | gcry_kdf_derive (buf, buf_len, | ||
46 | GCRY_KDF_SCRYPT, | ||
47 | 1 /* subalgo */, | ||
48 | "gnunet-proof-of-work", strlen ( | ||
49 | "gnunet-proof-of-work"), | ||
50 | 2 /* iterations; keep cost of individual op small */, | ||
51 | sizeof(struct GNUNET_HashCode), result)); | ||
52 | } | ||
53 | |||
54 | |||
55 | static void | 32 | static void |
56 | perfHash () | 33 | perfHash () |
57 | { | 34 | { |
58 | struct GNUNET_HashCode hc; | 35 | struct GNUNET_HashCode hc; |
59 | unsigned int i; | ||
60 | char buf[64]; | 36 | char buf[64]; |
61 | 37 | ||
62 | memset (buf, 1, sizeof(buf)); | 38 | memset (buf, 1, sizeof(buf)); |
63 | for (i = 0; i < 1024; i++) | 39 | for (unsigned int i = 0; i < 1024; i++) |
64 | pow_hash (buf, sizeof(buf), &hc); | 40 | GNUNET_CRYPTO_pow_hash ("gnunet-proof-of-work", |
41 | buf, | ||
42 | sizeof(buf), | ||
43 | &hc); | ||
65 | } | 44 | } |
66 | 45 | ||
67 | 46 | ||