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| author | Florian Dold <florian@dold.me> | 2022-04-26 17:13:36 +0200 |
|---|---|---|
| committer | Florian Dold <florian@dold.me> | 2022-04-26 17:13:36 +0200 |
| commit | 8d8e7d3da92e5ad4613671caed0a9a3f17e8b545 (patch) | |
| tree | 5c1300cb303ba1196604e1ec4b264da6a9e9334c /src/util | |
| parent | 1ca30687b08de63cdee7d5c6a137e52b687545c4 (diff) | |
| download | gnunet-8d8e7d3da92e5ad4613671caed0a9a3f17e8b545.tar.gz gnunet-8d8e7d3da92e5ad4613671caed0a9a3f17e8b545.zip | |
edx25519: use SHA512/256 instead of SHA256
Diffstat (limited to 'src/util')
| -rw-r--r-- | src/util/crypto_edx25519.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/util/crypto_edx25519.c b/src/util/crypto_edx25519.c index 2f6e12ead..775b64190 100644 --- a/src/util/crypto_edx25519.c +++ b/src/util/crypto_edx25519.c | |||
| @@ -309,11 +309,17 @@ GNUNET_CRYPTO_edx25519_private_key_derive ( | |||
| 309 | * generation, the "R" is derived from the same derivation path as "h" and is | 309 | * generation, the "R" is derived from the same derivation path as "h" and is |
| 310 | * not reused. */ | 310 | * not reused. */ |
| 311 | { | 311 | { |
| 312 | crypto_hash_sha256_state hs; | 312 | struct GNUNET_HashCode hcb; |
| 313 | crypto_hash_sha256_init (&hs); | 313 | struct GNUNET_HashContext *hctx; |
| 314 | crypto_hash_sha256_update (&hs, priv->b, sizeof(priv->b)); | 314 | |
| 315 | crypto_hash_sha256_update (&hs, (unsigned char*) &hc, sizeof (hc)); | 315 | hctx = GNUNET_CRYPTO_hash_context_start (); |
| 316 | crypto_hash_sha256_final (&hs, result->b); | 316 | GNUNET_CRYPTO_hash_context_read (hctx, priv->b, sizeof(priv->b)); |
| 317 | GNUNET_CRYPTO_hash_context_read (hctx, (unsigned char*) &hc, sizeof (hc)); | ||
| 318 | GNUNET_CRYPTO_hash_context_finish (hctx, &hcb); | ||
| 319 | |||
| 320 | /* Truncate result, effectively doing SHA512/256 */ | ||
| 321 | for (size_t i = 0; i < 32; i++) | ||
| 322 | result->b[i] = ((unsigned char *) &hcb)[i]; | ||
| 317 | } | 323 | } |
| 318 | 324 | ||
| 319 | for (size_t i = 0; i < 32; i++) | 325 | for (size_t i = 0; i < 32; i++) |